JT/AT32

Cummins® 4.5

Operator’s
Manual

CMW® Issue 4 053-3298

Original Instruction
JT/AT32 Operator’s Manual Overview - 1

Overview
Chapter Contents
Serial Number Location . . . . . . . . . . . . . . . . . . . . . 2
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment Modification . . . . . . . . . . . . . . . . . . . . 3
Machine Components . . . . . . . . . . . . . . . . . . . . . . 4
Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . 5
• United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• RF Exposure Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

RF Exposure Statement . . . . . . . . . . . . . . . . . . . . . 6
Operator Orientation . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . 7
• Bulleted Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• Numbered Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

California Proposition 65
Diesel engine exhaust and some of its constituents are known to the State of California to
cause cancer, birth defects, and other reproductive harm. www.P65warnings.ca.gov.
Overview - 2 JT/AT32 Operator’s Manual
Serial Number Location

Serial Number Location

Record serial numbers and date of purchase in spaces provided. Serial number is located as shown.

j87om001w21.eps

Item
Date of manufacture
Date of purchase
Machine serial number
JT/AT32 Operator’s Manual Overview - 3
Intended Use

Intended Use
The JT/AT32 is a self-contained horizontal directional drill designed to install buried cable and pipe to
distances of 600-1000’ (183-305m) depending on diameter of drill pipe and soil conditions. The AT32 is
designed to drill through rock, cobblestone, gravel, and caliche.

This machine is intended for operation only according to the instructions in this manual. Operate
machine in ambient temperatures from -10° to 115°F (-23° to 46°C). Contact your Ditch Witch® dealer for
provisions required for operating in extreme temperatures. Use in any other way is considered contrary
to the intended use.

This machine should be used with genuine Ditch Witch fluid machines and Subsite® Electronics tracking
equipment. It should be operated, serviced, and repaired only by professionals familiar with its particular
characteristics and acquainted with the relevant safety procedures.

Equipment Modification
This equipment was designed and built in accordance with applicable standards and regulations.
Modification of equipment could mean that it will no longer meet regulations and may not function
properly or in accordance with the operating instructions. Modification of equipment should only be
made by competent personnel possessing knowledge of applicable standards, regulations, equipment
design functionality/requirements and any required specialized training.
Overview - 4 JT/AT32 Operator’s Manual
Machine Components

Machine Components
4 3
2
1
12
11
10

7 9
8
j87om002w21.eps

1. Operator station 7. Pipe loader

2. Spindle 8. Wrenches
3. Carriage 9. Anchoring system
4. Drill frame 10. Wireless remote control indicator (clear)
5. Stabilizer 11. DrillLok® indicator (green)
6. Tracks 12. ESID strobe indicator (amber)
JT/AT32 Operator’s Manual Overview - 5
Regulatory Notices

Regulatory Notices
United States
This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired
operation. Changes or modifications not expressly approved by The Charles Machine Works, Inc. could void the user’s authority
to operate the equipment.

This device has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used
in accordance with the instructions, can cause harmful interference to radio communications. Operation of this equipment in a
residential area could cause harmful interference which the user will be required to correct at his own expense. Changes or
modifications not expressly approved by The Charles Machine Works, Inc. could void the user’s authority to operate the
equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.
• Connect equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Contains FCC ID: ITQ-TR2 and KQL-RM02410.

Canada
CAN ICES-2/NMB-2

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.

Contains IC: 3598A-TR2I and 2268C-RM02410.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Contient IC: 3598A-TR2I and 2268C-RM02410.

Overview - 6 JT/AT32 Operator’s Manual
Operator Orientation

RF Exposure Statement
In order to comply with RF exposure requirements during normal operation, this device must be held in front of the body
horizontally. The antenna must be vertical in line with the body with at least 4” (100mm) separation distance from the body.

This device complies with Health Canada’s Safety Code Section 6.

Operator Orientation 1

IMPORTANT: Top view of machine is shown.

1. Front
2. Right side
3. Rear
4. Left side
4 2

3
j87om003w21.eps

Operating Area
When using remote control to drive and set up, keep machine within sight at all times. Keep a safe
distance away from machine when operating remote control. Operate drilling functions only from seat.
JT/AT32 Operator’s Manual Overview - 7
About This Manual

About This Manual

This manual contains information for the proper use of this machine. Cross references such as “See page
50” will direct you to detailed procedures.

Bulleted Lists
Bulleted lists provide helpful or important information or contain procedures that do not have to be
performed in a specific order.

Numbered Lists
Numbered lists contain illustration callouts or list steps that must be performed in order.
Overview - 8 JT/AT32 Operator’s Manual
About This Manual
JT/AT32 Operator’s Manual Foreword - 9

Foreword
This manual is an important part of your equipment. It provides safety information and operation
instructions to help maintain your Ditch Witch equipment.

Read this manual before using your equipment. Keep it with the equipment at all times for future
reference. If you sell your equipment, be sure to give this manual to the new owner.

If you need a replacement copy, contact your Ditch Witch dealer. If you need assistance in locating a
dealer, visit our website at www.ditchwitch.com or write to the following address:

The Charles Machine Works, Inc.

ATTN: Marketing Department
PO Box 66
Perry, OK 73077-0066
USA

The descriptions and specifications in this manual are subject to change without notice. The Charles
Machine Works, Inc. reserves the right to improve equipment. Some product improvements may have
taken place after this manual was published. For the latest information on Ditch Witch equipment, see
your Ditch Witch dealer.

Thank you for buying and using Ditch Witch equipment.

Foreword - 10 JT/AT32 Operator’s Manual

JT/AT32
Operator’s Manual

Cummins® 4.5

Issue number 4.0/OM-01/24

Part number 053-3298

Copyright 2021, 2022, 2023, 2024

by The Charles Machine Works, Inc.

and Ditch Witch are registered trademarks of The Charles Machine Works, Inc. Other trademarks
and trade names are those of their respective owners.

This product and its use may be covered by one or more patents at http://charlesmachine.works/
patents.
JT/AT32 Operator’s Manual Contents - 11

Contents
Overview 1
Machine serial number, information about the type of work this machine is designed
to perform, basic machine components, and how to use this manual

Foreword 9
Part number, revision level, and publication date or this manual, and factory contact
information

Safety 13
Machine safety alerts and emergency procedures

Prepare 23
Procedures for preparing jobsite, preparing operator, and preparing equipment

Controls 45
Machine controls, gauges and indicators and how to use them

Drive 85
Procedures for startup, cold start, driving, and shutdown

Transport 91
Procedures for lifting, hauling, and towing

Conduct a Bore 97
Procedures for drilling and backreaming

Systems and Equipment 121

Information about anchors, cruise control, downhole tools, drill pipe, drilling fluid,
DrillLok system, electric strike system, and wireless remote control

Complete the Job 159

Procedures for restoring the jobsite and rinsing and storing equipment
Contents - 12 JT/AT32 Operator’s Manual

Maintenance 163
Maintenance intervals and instructions for this machine including lubrication,
replacement of wear items, and basic maintenance

Specifications 203
Machine specifications including weights, measurements, power ratings, and fluid
capacities

Support 213
The warranty policy for this machine and procedures for obtaining warranty
consideration and training
JT/AT32 Operator’s Manual Safety - 13

Safety
Chapter Contents
For additional precautions, see “Prepare” chapter.

Safety Alert Classification . . . . . . . . . . . . . . . . . . . 14

Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 16
• Electric Strike Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• If an Electric Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• If a Gas Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• If a Fiber Optic Cable is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
• If Machine Catches on Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Machine Safety Alerts . . . . . . . . . . . . . . . . . . . . . 19

Safety - 14 JT/AT32 Operator’s Manual
Safety Alert Classifications

Safety Alert Classifications

These classifications and the icons defined on the following pages work together to alert you to situations
which could be harmful to you, jobsite bystanders or your equipment. When you see these words and
icons in the book or on the machine, carefully read and follow all instructions. YOUR SAFETY IS AT STAKE.

Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level means.

indicates a hazardous situation that, if not avoided, will result in death or serious injury.
This signal word is to be limited to the most extreme situations.

indicates a hazardous situation that, if not avoided, could result in death or serious injury.

indicates a hazardous situation that, if not avoided, could result in minor or moderate
injury.

Watch for two other words: NOTICE and IMPORTANT.

NOTICE indicates information considered important, but not hazard-related (e.g., messages relating to
property damage).

IMPORTANT can help you do a better job or make your job easier in some way.
JT/AT32 Operator’s Manual Safety - 15
Guidelines

Guidelines
Misuse of machine can cause death or serious injury.
Read and understand operator’s manual and all other safety instructions
before use. Know how to use all controls.

Follow these guidelines before operating any jobsite equipment:

• Complete proper training.

• Read and understand operator’s manual before using equipment.
• Wear personal protective equipment including long pants, hard hat, eye protection, hearing
protection, and protective footwear.
• Do not wear jewelry or loose clothing.
• Mark proposed path with white paint and have underground utilities located before working. In the
US or Canada, call 811 (US) or 888-258-0808 (US and Canada). Also contact any local utilities that do
not participate in the One-Call service. In countries that do not have a One-Call service, contact all
local utility companies to have underground utilities located.
• Classify jobsite based on its hazards and use correct tools and machinery, safety equipment, and work
methods for jobsite.
• Mark jobsite clearly and keep spectators away.
• Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all
personnel before work begins. Safety videos are available from your Ditch Witch dealer or at
www.ditchwitch.com/safety. Safety Data Sheets (SDS) are available at www.ditchwitch.com/support.
• Fully inspect equipment before operating. Repair or replace any worn or damaged parts. Replace
missing or damaged safety shields and safety alert signs. Contact your Ditch Witch dealer for
assistance.
• Follow instructions on all safety alert signs on machine.
• Keep access steps and platforms clean and free of obstacles and debris.
• Use equipment carefully per the instructions in this manual. Stop operation and investigate anything
that does not look or feel right.
• Do not operate machine where flammable gas may be present.
• Only operate equipment in well ventilated areas.
• Ensure jobsite is adequately lit. Arrange for secondary light sources as needed.
• Always tie down equipment and properly stow accessories, even if traveling short distances.
• Contact your Ditch Witch dealer if you have any questions about operation, maintenance, or
equipment use.
• Complete the equipment checklist located at www.ditchwitch.com/safety.
Safety - 16 JT/AT32 Operator’s Manual
Emergency Procedures

Emergency Procedures
Underground utilities. Contact can cause death or
serious injury. Locate and verify underground utilities before digging or
drilling.

Before operating any equipment, review emergency procedures and check that all safety precautions
have been taken.

EMERGENCY SHUTDOWN: Shut off machine or press remote engine stop button or emergency stop
button (if equipped).

If emergency stop button is used to stop machine, inspect the machine to determine the reason for
activation before re-enabling. Ensure ignition switch is in the off position before re-enabling.

Electric Strike Description

When working near electric cables, remember the following:

• Electricity follows all paths to ground, not just path of least resistance.
• Pipes, hoses, and cables will conduct electricity back to all equipment.
• Low voltage current can injure or kill. Many work-related electrocutions result from contact with less
than 440 volts.

Most electric strikes are not noticeable, but indications of a strike include:

• power outage
• smoke
• explosion
• popping noises
• arcing electricity

If any of these occur, or if strike alarm sounds or flashes, assume an electric strike has occurred.
JT/AT32 Operator’s Manual Safety - 17
Emergency Procedures

If an Electric Line is Damaged

If you suspect an electric line has been damaged, DO NOT MOVE. Take the following actions. The order
and degree of action will depend on the situation.

• If you are on machine or bonded equipment:

• REMAIN ON MACHINE.
• Reverse drilling direction and try to break contact. Do not touch drill pipe with hands or hand-
held tools.
• Press electric strike system test button.
• If alarm sounds again, stay where you are and wait for electric company to shut off power.
• If alarm does not sound or there is no other indication of a strike, wait at least one full minute
before moving away from equipment. Utility might use automatic reclosers which will restart
current flow.
• If alarm sounds again while waiting, stay where you are until electric company shuts off power.
• If alarm does not sound but all lights in strike indicator are on, assume strike is continuing and
stay where you are until electric company shuts off power.
• If you are off the machine or bonded equipment, DO NOT TOUCH ANY EQUIPMENT connected to
machine:
• If you must leave the area, take small steps with feet close together to reduce the hazard of being
shocked from one foot to the other.
• If you leave, do not return to area or allow anyone into area until given permission by electric
company.
• Warn people nearby that an electric strike has occurred. Instruct them to leave the area.
• Have someone contact electric company to shut off power.
• Do not resume drilling or allow anyone into area until given permission by electric company.

If a Gas Line is Damaged

If you suspect a gas line has been damaged, take the following actions. The order and degree of action will
depend on the situation.

• Immediately shut off engine(s), if this can be done safely and quickly.
• Remove any ignition source(s), if this can be done safely and quickly.
• Warn others that a gas line has been cut and that they should leave the area.
• After warning others to leave the area, leave jobsite as quickly as possible.
• Immediately call your local emergency phone number and utility company.
• If jobsite is along street, stop traffic from driving near jobsite.
• Do not return to jobsite until given permission by emergency personnel and utility company.
Safety - 18 JT/AT32 Operator’s Manual
Emergency Procedures

If a Fiber Optic Cable is Damaged

Do not look into cut ends of fiber optic or unidentified cable. Vision damage can occur. Contact utility
company.

If Machine Catches on Fire

Perform emergency shutdown procedure and then take the following actions. The order and degree of
action will depend on the situation.

• Immediately move battery disconnect switch (if equipped and accessible) to disconnect position.
• If fire is small and fire extinguisher is available, attempt to extinguish fire.

• If fire cannot be extinguished, leave area as quickly as possible and contact emergency personnel.
JT/AT32 Operator’s Manual Safety - 19
Machine Safety Alerts

Machine Safety Alerts

1 DANGER stripe decal. See Parts Manual for replacement part

numbers.

2 Tiedown location. See Transport chapter for more information.

3
Raised component. Crushing can cause death or
serious injury. Stay away or secure raised component with locking
device. Use correct equipment and procedures.
Safety - 20 JT/AT32 Operator’s Manual
Machine Safety Alerts

4
Moving or thrown tools. Impact will cause death or
serious injury. Never use pipe wrenches on drill string. Follow
procedure in operator’s manual.

5
Pre-heater. Fire or explosion can cause death or
serious injury. Never use starter fluid.

6
Misuse of machine can cause death or serious
injury. Read and understand operator’s manual and all other safety
instructions before use. Know how to use all controls.

7
Buried electrical lines. Contact will cause death or
serious injury. Know location of lines. Stay away.

8
Rotating shaft. Crushing will cause death or serious
injury. Stay away.

9
Moving parts. Crushing can cause death or serious
injury. Stay away from moving parts and their range of movement.

10
Moving parts. Contact can cause serious injury.
Stay away.

11
Hot parts. Contact can cause burns. Only touch
when cool or wear gloves.
JT/AT32 Operator’s Manual Safety - 21
Machine Safety Alerts

12
Remote-controlled equipment. Impact can cause
death or serious injury. Stay away.

13
Underground utilities. Contact can cause death or
serious injury. Locate and verify underground utilities before
digging or drilling.

14
Pressurized fluid or air. Contact can cause death or
serious injury. Refer to operator’s manual for correct use.

15 Lift point. See Transport chapter for more information.

16
Lifted load. Crushing can cause death or serious
injury. Stay away from lifted load and its range of movement.

17 Emergency exit. Push window out to exit cab when door is blocked
or inoperable.
Safety - 22 JT/AT32 Operator’s Manual
Machine Safety Alerts
JT/AT32 Operator’s Manual Prepare - 23

Prepare
Chapter Contents
See “Safety” for additional precautions.

Wear proper personal protective equipment.

Prepare Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
• Review Job Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
• Select Start and End Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
• Identify Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
• Locate Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
• Classify Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
• Arrange for Traffic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
• Plan Bore Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
• Examine Pullback Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
• Prepare Entry Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Prepare Operator. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Prepare Equipment . . . . . . . . . . . . . . . . . . . . . . . . 40
• Check Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
• Check Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
• Assemble Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Prepare - 24 JT/AT32 Operator’s Manual
Prepare Jobsite

Prepare Jobsite
Underground utilities. Contact can cause death or serious
injury. Locate and verify underground utilities before digging or drilling.

To help avoid injury:

• Expose lines by careful hand digging or soft excavation before operating equipment. Use
appropriate equipment and procedures for exposing utility lines.
• All vegetation near operator’s station must be removed. Contact with trees, shrubs, or weeds
during electrical strike could result in electrocution.
• Classify jobsite and follow precautions based on classification.
• Follow local regulations for digging near utilities.

A successful job begins before working. The first step in planning is reviewing information already
available about the job and jobsite.

Review Job Plan

Review blueprints or other plans and make sure you have taken bore enlargement during backreaming
and pullback into account. Check for information about existing or planned structures, elevations, or
proposed work that may be taking place at the same time.

Select Start and End Points

Select one end to use as a starting point. Consider the following when selecting a starting point:

Slope
Equipment should be parked on a level site. Consider how slope will affect setup and operation. Assess
the risks on each slope to determine if factors affecting risks create an unsafe condition for working. See
“Slope Guidelines” on page 108.

Space
Check that starting and ending points allow enough space for working. See “Minimum Setback” on
page 35.

Comfort
Consider shade, wind, fumes, and other site features.

Drill downhill when possible so fluid will flow away from drilling unit.
JT/AT32 Operator’s Manual Prepare - 25
Prepare Jobsite

Identify Hazards
Inspect jobsite before transporting equipment. Check for the following:

• overall grade or slope

• changes in elevation such as hills or open trenches
• obstacles such as buildings, railroad crossings, or streams
• signs of utilities

- “buried utility” notices - utility facilities without overhead lines

- gas or water meters - junction boxes
- drop boxes - light poles
- manhole covers - sunken ground

• traffic
• access
• soil type and condition
• water supply
• sources of locator, tracker, or guidance equipment interference (rebar, railroad tracks, etc.)

NOTICE: All tracking equipment is subject to magnetic interference. The presence of

interference can cause inaccuracies in both location and depth calculations. See tracker or
locator operator’s manual for more information.

Take soil samples from several locations along bore path to determine best bit and backreamer
combinations.
Prepare - 26 JT/AT32 Operator’s Manual
Prepare Jobsite

Locate Utilities
Notify One-Call Services
Mark proposed path with white paint and have underground utilities located before working.

• In the US or Canada, call 811 (US) or 888-258-0808 (US and Canada). Also contact any local utilities
that do not participate in the One-Call service.
• In countries that do not have a One-Call service, contact all local utility companies to have
underground utilities located.

Verify Underground Utilities

Have an experienced locating equipment operator sweep area within 20’ (6 m) to each side of proposed
excavation to verify previously marked line and cable locations. Mark location of all buried utilities and
obstructions.

Locate Overhead Lines

Overhead electrical lines. Contact will cause death or

serious injury. Know location of lines. Stay away.

Note location and height of all overhead lines in jobsite and ensure that equipment maintains proper
distance from live lines.
JT/AT32 Operator’s Manual Prepare - 27
Prepare Jobsite

Classify Jobsite
Select a Classification
Jobsites are classified according to underground hazards present, not by line being installed. Jobsite may
have more than one classification.

If working . . . then classify jobsite as . . .

within 10’ (3m) of a buried electric line electric
within 10’ (3m) of a natural gas line natural gas
in concrete, sand, or granite which is capable of producing crystalline silica dust
crystalline silica dust
within 10’ (3m) of any other hazard other

Classify jobsite as electric if jobsite is in question or if the possibility of unmarked electric utilities exists.

Apply Precautions

Underground utilities. Contact can cause death or serious

injury. Locate and verify underground utilities before digging or drilling.

Once classified, precautions appropriate for jobsite must be taken. Follow US Department of Labor
regulations on excavating and trenching (Part 1926, Subpart P) and other similar regulations.

Electric Jobsite Precautions

In addition to using a directional drilling system with an electric strike system, use one or both of these
methods:

• Expose line by careful hand digging or soft excavation. Use beacon to track bore path. If utility must
be crossed, tracker operator must watch the drill head during drilling and backreaming. The tracker
operator must have communication with the drill operator or DrillLok system must be enabled with
the DrillLok key in the tracker operator’s possession.
• Have service shut down while work is in progress. Have electric company test lines before returning
them to service.
Prepare - 28 JT/AT32 Operator’s Manual
Prepare Jobsite
Natural Gas Jobsite Precautions

Position equipment upwind from gas lines and use one or both of these methods:

• Expose line by careful hand digging or soft excavation. Use beacon to track bore path. If utility must
be crossed, tracker operator must watch the drill head during drilling and backreaming. The tracker
operator must have communication with the drill operator or DrillLok system must be enabled with
the DrillLok key in the tracker operator’s possession.
• Have service shut down while work is in progress. Have gas company test lines before returning them
to service.

Crystalline Dust Jobsite Precautions

Silica dust. Exposure can cause lung disease or cancer. Use

breathing protection.

Crystalline silica dust is a naturally occurring substance found in soil, sand, concrete, granite, and quartz.

To reduce exposure when cutting, drilling, or working these materials:

• Use water spray or other means to control dust.

• Refer to US Occupational Safety and Health Administration (OSHA) guidelines or other applicable
regulating guidelines for appropriate breathing protection or dust control methods.

Other Jobsite Precautions

You may need to use different methods to safely avoid other underground hazards. Talk with those
knowledgeable about hazards present at each site to determine which precautions should be taken or if
job should be attempted.

Clear objects such as landscaping fabric, cable, and wire from the work area. These objects may be
underground or partially buried.
JT/AT32 Operator’s Manual Prepare - 29
Prepare Jobsite

Arrange for Traffic Control

Vehicle and pedestrian traffic must be a safe distance from equipment. Evaluate jobsite and allow an
appropriate buffer zone around equipment. If working near a road or other traffic area, contact local
authorities about safety procedures and regulations.

Plan Bore Path

Plan the bore path, from entry to end, before drilling begins. Subsite Electronics bore planning software is
available for planning your bore path. This special software can be run in the field using a laptop
computer or mobile device. See your Ditch Witch dealer for details.

NOTICE: If not using bore planning software, see “Bore Path Calculator” on page 36.

For complicated bores, consult an engineer. Have the jobsite surveyed and bore path calculated. Be sure
the engineer knows minimum entry pitch, bend limits of drill pipe, bend and tension limits of pullback
material, pipe lengths, and location of all underground utilities.

For less complicated bores, plan the bore based on four measurements:

• recommended bend limit

• entry pitch
• minimum setback
• minimum depth
Prepare - 30 JT/AT32 Operator’s Manual
Prepare Jobsite
Recommended Bend Limits

IMPORTANT: Consider recommended bend limits during any bend, not just during bore entry.

Ditch Witch drill pipes are designed to bend slightly during operation. Slight bending allows for steering
and correcting direction. Bending beyond recommended limits will cause damage that might not be
visible. This damage adds up and will later lead to sudden drill pipe failure.

Pipe Pitch

NOTICE: Bending drill pipe more sharply than recommended will damage pipe and cause failure over
time. Maximum changes in pitch within 1-2’ (300-600m) of pipe create sharp bends that will damage
pipe.

Ditch Witch drill pipe is tested to bend at a

maximum percent pitch.

Ensure pitch (A) changes no more than the

following percentages over the full length of each
pipe. Monitor the pitch of each pipe with tracker j07om003c.eps

remote display on the operator’s console. See

tracking system operator’s manual.

Drill Pipe Percentage

JT32 Power Pipe® HD 8.0%
JT32 DW-Forged HD 8.0%
JT32 HDX 8.1%
AT32 Power Pipe 7.7%
JT/AT32 Operator’s Manual Prepare - 31
Prepare Jobsite
Bend Radius

NOTICE: Bending drill pipe more sharply than recommended will damage pipe and cause failure over
time. If bend radius is reduced, drill pipe life is reduced.

IMPORTANT: Use following charts to keep bends within safe limits.

B
j07om004c.eps

Drill Pipe Tested Minimum Bend Radius Radius (A)* Length Needed (B)*
Power Pipe HD 123’ (44.5m) 123’ (44.5m) 194’ (59.1m)
DW-Forged HD 123’ (44.5m) 123’ (44.5m) 194’ (59.1m)
HDX 123’ (44.5m) 123’ (44.5m) 194’ (59.1m)
Power Pipe 130’ (39.6m) 130’ (39.6m) 204’ (62.2m)

*Measurements are based on a 90° bend in the bore path.

Prepare - 32 JT/AT32 Operator’s Manual
Prepare Jobsite
Pipe-By-Pipe Bend Limits

Power Pipe HD/DW-Forged HD

Pipe (C) Forward (B) Deflection (A)
1 9’ 9.6” 3.0m 0’ 4.7” 0.1m
2 19’ 6.4” 6.0m 1’ 6.7” 0.5m
3 29’ 1.8” 8.9m 3’ 5.9” 1.1m
4 38’ 7.0” 11.8m 6’ 2.2” 1.9m
5 47’ 9.2” 14.6m 9’ 7.4” 2.9m
6 56’ 7.8” 17.3m 13’ 9.3” 4.2m
7 65’ 2.2” 19.9m 18’ 7.4” 5.7m
8 73’ 3.5” 22.3m 24’ 1.5” 7.4m
9 80’ 11.4” 24.7m 30’ 3.1” 9.2m
10 88’ 1.1” 26.9m 36’ 11.8” 11.3m
11 94’ 8.1” 28.9m 44’ 3.0” 13.5m
12 100’ 7.9” 30.7m 52’ 0.2” 15.9m
13 106’ 0.1” 32.3m 60’ 2.9” 18.4m
14 110’ 8.3” 33.7m 68’ 10.3” 21.0m
15 114’ 8.1” 35.0m 77’ 9.8” 23.7m
16 117’ 11.2” 36.0m 87’ 0.8” 26.6m
JT/AT32 Operator’s Manual Prepare - 33
Prepare Jobsite

Power Pipe HD/DW-Forged HD

Pipe (C) Forward (B) Deflection (A)
17 120’ 5.3” 36.7m 96’ 6.6” 29.4m
18 122’ 2.3” 37.2m 106’ 2.4” 32.4m
19 123’ 2.1” 37.5m 115’ 11.5” 35.3m
20 123’ 4.5” 37.6m 123’ 4.5” 37.6m

HDX
Pipe (C) Forward (B) Deflection (A)
1 9’ 11.9” 3.0m 0’ 4.9” 0.1m
2 19’ 11.0” 6.1m 1’ 7.4” 0.5m
3 29’ 8.5” 9.0m 3’ 7.5” 1.1m
4 39’ 3.6” 12.0m 6’ 5.1” 2.0m
5 48’ 7.7” 14.9m 9’ 11.9” 3.0m
6 57’ 8.0” 17.6m 14’ 3.6” 4.4m
7 66’ 3.7” 20.2m 19’ 3.9” 5.9m
8 74’ 6.2” 22.7m 25’ 0.4” 7.6m
9 82’ 2.8” 25.1m 31’ 4.7” 9.6m
10 89’ 4.9” 27.3m 38’ 4.2” 11.7m
11 96’ 0.0” 29.3m 45’ 10.4” 14.0m
12 101’ 11.5” 31.1m 53’ 10.7” 16.4m
13 107’ 3.0” 32.7m 62’ 4.5” 19.0m
14 111’ 10.1” 34.1m 71’ 3.1” 21.7m
15 115’ 8.3” 35.3m 80’ 5.8” 24.5m
16 118’ 9.5” 36.2m 89’ 11.8” 27.4m
17 121’ 1.3” 36.9m 99’ 8.5” 30.4m
18 122’ 7.5” 37.4m 109’ 7.1” 33.4m
19 123’ 4.1” 37.6m 119’ 6.8” 36.4m
20 123’ 4.5” 37.6m 123’ 4.5” 37.6m
Prepare - 34 JT/AT32 Operator’s Manual
Prepare Jobsite

All Terrain Pipe

Pipe (C) Forward (B) Deflection (A)
1 9’ 11.9” 3.0m 0’ 4.6” 0.1m
2 19’ 11.1” 6.1m 1’ 6.4” 0.5m
3 29’ 8.8” 9.1m 3’ 5.4” 1.1m
4 39’ 4.4” 12.0m 6’ 1.3” 1.9m
5 48’ 9.3” 14.9m 9’ 6.1” 2.9m
6 57’ 10.7” 17.6m 13’ 7.4” 4.2m
7 66’ 7.9” 20.3m 18’ 5.0” 5.6m
8 75’ 0.4” 22.9m 23’ 10.4” 7.3m
9 82’ 11.6” 25.3m 29’ 11.5” 9.1m
10 90’ 4.9” 27.6m 36’ 7.6” 11.2m
11 97’ 3.7” 29.7m 43’ 10.4” 13.4m
12 103’ 7.7” 31.6m 51’ 7.3” 15.7m
13 109’ 4.2” 33.3m 59’ 9.7” 18.2m
14 114’ 5.0” 34.9m 68’ 5.2” 20.9m
15 118’ 9.7” 36.2m 77’ 5.0” 23.6m
16 122’ 5.9” 37.3m 86’ 8.5” 26.4m
17 125’ 5.3” 38.2m 96’ 3.1” 29.3m
18 127’ 7.9” 38.9m 106’ 0.1” 32.3m
19 129’ 1.4” 39.4m 115’ 10.8” 35.3m
20 129’ 9.7” 39.6m 125’ 10.5” 38.3m
21 130’ 0” 39.6m 130’ 0” 39.6m
JT/AT32 Operator’s Manual Prepare - 35
Prepare Jobsite

Entry Pitch
Entry pitch is the slope of the drill frame compared with the slope of the ground. Determine entry pitch
one of the two following ways.

With Pitch Beacon

1. Lay pitch beacon on ground and read pitch. Record this number.
2. Lay pitch beacon on drill frame and read pitch. Record this number.
3. Subtract ground pitch from drilling unit pitch.

With Measurements

1. Measure from ground to front end of drill

frame (H1).
2. Measure from ground to back end of drill
frame (H2).
3. Subtract (H2-H1). Record this number.
4. Measure the distance between front and back
points (C).
5. Divide distance (H2-H1) by C, then multiply by
100 as shown. This is the pitch.

Minimum Setback
j07om006c.eps

Minimum setback is the distance from the entry

point to where pipe becomes horizontal (A1).

IMPORTANT: If setback is too small (A2), bend

limits of the pipe will be exceeded and the pipe
will be damaged.

A shallow entry pitch (B1) allows pipe to become j07om008c.eps

horizontal sooner and with less bending.

Increasing entry pitch (B2) creates a longer and
deeper minimum setback.

j07om007c.eps
Prepare - 36 JT/AT32 Operator’s Manual
Prepare Jobsite
Minimum Depth
Minimum depth is how deep the pipe will be
when it becomes horizontal. Because pipe must
bend gradually, entry pitch and bend limits
determine this measurement.
j07om009c.eps
• To reduce minimum depth (D1), reduce entry
pitch. This also decreases setback.
• To increase minimum depth (D2), increase entry pitch. This also increases setback.

Bore Path Calculator

Power Pipe HD/DW-Forged HD*

Minimum Depth (D) Entry Pitch (A) Setback (B) Depth to Begin Steering (S)
1’ 8” (0.5m) 18% / 10.0° 30’ 10” (9.4m) 3’ 7” (1.1m)
1’ 11” (0.6m) 20% / 11.3° 33’ 7” (10.2m) 4’ 4” (1.3m)
2’ 1” (0.6m) 22% / 12.7° 36’ 4” (11.1m) 5’ 2” (1.6m)
2’ 4” (0.7m) 25% / 14.0° 39’ 1” (11.9m) 5’ 12” (1.8m)
2’ 7” (0..8m) 27% / 15.3° 41’ 10” (12.8m) 6’ 11” (2.1m)
2’ 9” (0.8m) 30% / 16.7° 44’ 6” (13.6m) 7’ 11” (2.4m)
2’ 12” (0.9m) 32% / 18.0° 47’ 2” (14.4m) 9’ 0” (2.7m)
*Numbers in table based on 123’ (37.49m) minimum bend radius and beacon housing, EZ-Connect connector, transition sub, and
one-third of first drill pipe (L, totaling 9.5’ [2.90m]) in the ground before steering.
JT/AT32 Operator’s Manual Prepare - 37
Prepare Jobsite

HDX
Minimum Depth (D) Entry Pitch (A) Setback (B) Depth to Begin Steering (S)
1’ 8” (0.5m) 18% / 10.0° 30’ 10” (9.4m) 3’ 7” (1.1m)
1’ 11” (0.6m) 20% / 11.3° 33’ 7” (10.2m) 4’ 4” (1.3m)
2’ 1” (0.6m) 22% / 12.7° 36’ 4” (11.1m) 5’ 2” (1.6m)
2’ 4” (0.7m) 25% / 14.0° 39’ 1” (11.9m) 5’ 12” (1.8m)
2’ 7” (0..8m) 27% / 15.3° 41’ 10” (12.8m) 6’ 11” (2.1m)
2’ 9” (0.8m) 30% / 16.7° 44’ 6” (13.6m) 7’ 11” (2.4m)
2’ 12” (0.9m) 32% / 18.0° 47’ 2” (14.4m) 9’ 0” (2.7m)

*Numbers in table based on 123’ (37.49m) minimum bend radius and beacon housing, EZ-Connect connector, transition sub, and
one-third of first drill pipe (L, totaling 9.5’ [2.90m]) in the ground before steering.

All Terrain Pipe

Minimum Depth (D) Entry Pitch (A) Setback (B) Depth to Begin Steering (S)
1’ 4” (0.4m) 18% / 10.0° 30’ 0” (9.1m) 3’ 4” (1.0m)
1’ 6” (0.5m) 20% / 11.3° 32’ 11” (10.0m) 4’ 1” (1.2m)
1’ 8” (0.5m) 22% / 12.7° 35’ 10” (10.9m) 4’ 10” (1.5m)
1’ 10” (0.6m) 25% / 14.0° 38’ 9” (11.8m) 5’ 9” (1.8m)
2’ 0” (0.8m) 27% / 15.3° 41’ 7” (12.7m) 6’ 8” (2.0m)
2’ 2” (0.7m) 30% / 16.7° 44’ 6” (13.6m) 7’ 8” (2.3m)
2’ 4” (0.7m) 32% / 18.0° 47’ 4” (14.4m) 8’ 9” (2.7m)

*Numbers in table based on 130’ (39.6m) minimum bend radius and beacon housing, and one-third of first drill pipe (L, totaling 7’
9” [2.29m]) in the ground before steering.

Examine Pullback Material

Ask for a sample of the material you will be pulling back. Check its weight and stiffness. Contact the
manufacturer for bend radius information. Check that you have appropriate pullback devices.
Prepare - 38 JT/AT32 Operator’s Manual
Prepare Jobsite

Prepare Entry Point

For bore to be successful, first pipe must be
straight as it enters the ground. See “Align the
Joints” on page 139.

To help ensure that the first pipe does not bend,

dig a small starting hole so that the first pipe is
drilled into a vertical surface. Steer down as
j07om011c.eps
required at start. Drill head will tend to move in
easiest direction (toward surface) when rotated near the surface.

To prevent bending or straining pipe, position drilling unit for straight entry.
JT/AT32 Operator’s Manual Prepare - 39
Prepare Operator

Prepare Operator
Jobsite hazards. Exposure can cause death or serious
injury. Use correct equipment and work methods. Use and maintain
appropriate safety equipment.

To help avoid injury:

• Wear personal protective equipment including hard hat, safety eye wear, foot protection, hearing
protection, and gloves (except when near rotating equipment).
• Remove jewelry.
• Tie back long hair.
• Wear close-fitting, high visibility clothing.
• Have other personal protective equipment, such as insulated boots and gloves, breathing
protection, and face shield, etc. available for use depending on jobsite hazards or requirements.

Follow these guidelines before operating any jobsite equipment:

• Complete proper training and read operator’s manual before using equipment.
• Plan for emergency services. Have the telephone numbers for local emergency and medical facilities
on hand. Check that you will have access to a telephone.
• Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all
personnel before work begins. Safety videos are available from your Ditch Witch dealer or at
www.ditchwitch.com/safe. Safety Data Sheets (SDS) are available at www.ditchwitch.com/support.
• Use equipment carefully. Stop operation and investigate anything that does not look or feel right.

Any time jobsite is classified as electric, drill operator and tracker operator must wear protective boots,
and the drill operator must have protective gloves within reach, all meeting the following requirements:

• Boots must have high tops and must be rated for the voltage on the jobsite. Tuck legs of pants
completely inside boots.
• Gloves must be rated for the voltage on the jobsite.
Prepare - 40 JT/AT32 Operator’s Manual
Prepare Equipment

Prepare Equipment
Check Supplies
• fuel
• diesel exhaust fluid (DEF), if needed
• keys
• marking flags or paint
• notepad and pencil
• spare fuses
• lubricants
• receiver/transmitter or tracker
• extra batteries for accessories and equipment
• beacons
• two-way radios
• quick wrench or Hydratong wrench
• transition sub
• anchoring equipment and accessories
• bits, screens, and nozzles
• adapters, pipe, and beacon housings
• marking flags or paint
• water and additional hoses
• drilling fluid and additives
• backreamers, swivels, and pulling devices
• wash down hose and spray gun
• duct tape
• spray lubricant
• tool joint compound
JT/AT32 Operator’s Manual Prepare - 41
Prepare Equipment

Check Equipment
Fluid Levels
• fuel
• engine oil
• diesel exhaust fluid (DEF), if needed
• hydraulic fluid
• engine coolant

Condition and Function

• all controls

Improper control function. Use can cause death

or serious injury. If control does not work as described in
instructions, stop machine and have it serviced.

• battery
• hoses and valves
• pumps and motors
• tires or tracks
• signs, guards, and shields
• couplers and fittings
• water tank(s)
• fluid pump
• filters (air, oil, hydraulic)
• belts
Prepare - 42 JT/AT32 Operator’s Manual
Prepare Equipment

Assemble Accessories
Fire Extinguisher
Mount a fire extinguisher near the power unit but
away from possible points of ignition where
shown. The fire extinguisher should always be
classified for both oil and electric fires. It should
meet legal and regulatory requirements.

j87om014w21.eps

j87om042w21.eps

Covers and Canopy

1. Remove canopy from storage position under
console cover.
2. Remove canopy rod from storage position and
slide through front pocket of canopy.
3. Insert canopy rod into top of operator station
rails (shown).

j59om112w.eps
JT/AT32 Operator’s Manual Prepare - 43
Prepare Equipment
4. Unlatch console cover (1) to lift and press into
locking position as shown.

j59om113w.eps
5. Remove pin (2) to lift and lower display cover
as shown.

j59om114w.eps
6. Secure canopy to operator station rails with
snaps (3) and buckles (4).

IMPORTANT: Optional canopy has

buckles that connect at the bottom of
the operator station instead of snaps. 4 4

7. To disassemble, repeat steps in reverse order.

j59om117w.eps
Prepare - 44 JT/AT32 Operator’s Manual
Prepare Equipment
JT/AT32 Operator’s Manual Controls - 45

Controls
Chapter Contents
Alternate Control Option . . . . . . . . . . . . . . . . . . . 46
Auxiliary Pipe Loading . . . . . . . . . . . . . . . . . . . . . 46
Battery Disconnect . . . . . . . . . . . . . . . . . . . . . . . . 52
Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
• Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
• Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Console, Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
• Drilling/Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
• Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
• Pipe Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Console, Right . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Console, Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
• Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
• Wireless Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Engine Compartment . . . . . . . . . . . . . . . . . . . . . . 81
Open Station Seat . . . . . . . . . . . . . . . . . . . . . . . . . 83
Wireline Restricted Operating Mode (ROM) . . . . 84
Controls - 46 JT/AT32 Operator’s Manual
Alternate Control Option

Alternate Control Option

2 3 9 10

1 8

4 11

6 13
5 12

7 14
j59om130w.eps

1. Drilling fluid quick-fill switch 8. Pipe gripper switch

2. Drilling fluid pump switch 9. Rear wrench control
3. Rear wrench rotation switch 10. Front wrench control
4. Pipe lubricator switch 11. Extend shuttle switch
5. Multi-use button 12. Retract shuttle switch
6. Set/Resume switch 13. Pipe lift switch
7. Left joystick/Rotation control 14. Right joystick/Thrust control

IMPORTANT:

• Alternate controls function only with alternate control option.

• Right joystick replaces carriage control joystick with alternate control option.

Item Description IMPORTANT

1. Drilling fluid quick-fill To fill pipe with fluid, press Overrides fluid control setting for full
switch and hold. pump flow. Also overrides temporary
fluid shutdown when front wrench is
To return fluid to flow control clamped.
setting, release.

c00ic677w.eps
JT/AT32 Operator’s Manual Controls - 47
Alternate Control Option

Item Description IMPORTANT

2. Drilling fluid pump To turn on, press. Use rotary operation control to
switch control drilling fluid flow. See “Rotary
To turn off, press again. operation control” on page 61.

Drilling fluid pump switch and fluid

flow selector must be on before using
rotary operation control to control
drilling fluid control. See “Fluid flow
selector” on page 61.
c00ic676w.eps

3. Rear wrench rotation To rotate counterclockwise,

switch press top.

To rotate clockwise, press

bottom.

c00ic678w.eps

4. Pipe lubricator switch To apply tool joint

compound, press.

c00ic616h.eps

5. Multi-use button To engage a function, push Operation instructions:

and hold.
• high-speed carriage control
To return to normal
• autocarve reaming and
operation, release.
positioning functions
• assisted makeup override
6. Set/Resume switch To resume operation or
increase operation levels,
press top.

To set operating conditions or

reduce operation levels,
press bottom.
Controls - 48 JT/AT32 Operator’s Manual
Alternate Control Option

Item Description IMPORTANT

7. Rotation control To rotate spindle
counterclockwise (breakout),
push left joystick.

To rotate spindle clockwise

(make up), pull right joystick.

c00ic674w.eps

8. Pipe gripper switch To close, press top.

To open, press bottom.

9. Rear wrench control To clamp rear wrench, press

top.

To unclamp rear wrench,

press bottom.

10. Front wrench control To clamp front wrench, press

top.

To unclamp front wrench,

press bottom.

c00ic679w.eps

11. Extend shuttle switch To move shuttle toward

spindle, press.

c00ic680w.eps
JT/AT32 Operator’s Manual Controls - 49
Alternate Control Option

Item Description IMPORTANT

12. Retract shuttle switch To move shuttle toward pipe
box, press.

c00ic681w.eps

13. Pipe lift switch To raise, press top.

To lower, press bottom.

14. Thrust control To move carriage forward

(thrust), push right joystick.

To move carriage backward

(pull back), pull right joystick.

c00ic675w.eps
Controls - 50 JT/AT32 Operator’s Manual
Auxiliary Pipe Loading

Auxiliary Pipe Loading

1 2 3
j87om005w21.eps

1. Auxiliary pipe shuttle switch 3. Auxiliary pipe lifter switch

2. Auxiliary pipe load restricted operating mode
switch

IMPORTANT: See “Add/Remove Single Pipe” on page 146.

Item Description IMPORTANT

1. Auxiliary pipe shuttle To move toward pipe box
switch (retract), press top.

To move toward spindle

(extend), press bottom.

c00ic200w.eps
JT/AT32 Operator’s Manual Controls - 51
Auxiliary Pipe Loading

Item Description IMPORTANT

2. Auxiliary pipe load To override drill operator
restricted operating control of shuttles and lifters,
mode switch press right.

c00ic202w.eps

3. Auxiliary pipe lifter To raise, press top.

switch
To lower, press bottom.

c00ic201w.eps
Controls - 52 JT/AT32 Operator’s Manual
Battery Disconnect

Battery Disconnect

j87om006w21.eps

Item Description IMPORTANT

Battery disconnect To connect, move right. NOTICE:
_
+
To disconnect, move left. • Do not disconnect with engine
running.
• Wait two minutes after turning
engine off before disconnecting
battery.
c00ic156w.eps
JT/AT32 Operator’s Manual Controls - 53
Cab

Cab
Controls

5
2

4 8

j95om060w22.eps

1. Door wiper switch 5. Washer fluid switch

2. Left wiper switch 6. Work light switch
3. Air temperature control 7. Emergency stop button
4. Fan speed control 8. Air conditioner switch
Controls - 54 JT/AT32 Operator’s Manual
Cab

Item Description IMPORTANT

1. Door wiper switch To turn on, press top.

To turn off, press bottom.

c00ic214w.eps

2. Left wiper switch To turn on, press top.

To turn off, press bottom.

L

c00ic212w.eps

3. Air temperature control To increase temperature,

move right.

To decrease temperature,
move left.

c00ic211w.eps

4. Fan speed control To increase fan speed, move

0 right.
1
2
To decrease fan speed, move
3 left.

c00ic205w.eps
JT/AT32 Operator’s Manual Controls - 55
Cab

Item Description IMPORTANT

5. Washer fluid switch To turn on, press top.

To turn off, press bottom.

c00ic213w.eps

6. Work light switch To turn on, press top.

To turn off, press bottom.

c00ic048w.eps

7. Emergency stop switch To stop machine, press. If used to stop machine, inspect the
machine to determine the reason for
To re-enable emergency stop, activation before re-enabling.
pull.
If used to stop machine, ensure
ignition switch is in the off position
before re-enabling.

8. Air conditioner switch To turn on, press left.

To turn off, press right.

c00ic205w.eps
Controls - 56 JT/AT32 Operator’s Manual
Cab

Seat

1 2 3 4 5 6
j87om007w21.eps

1. Heat switch 4. Suspension control

2. Lumbar support control 5. Cab controller EDT port
3. Slide control 6. Recline control

Item Description IMPORTANT

1. Heat switch To turn on high, press top.

To turn off, move to middle.

To turn on low, press bottom.

c00ic215w.eps
JT/AT32 Operator’s Manual Controls - 57
Cab

Item Description IMPORTANT

2. Lumbar support control To increase lumbar support,
move down.

To decrease lumbar support,

move up.
3. Slide control To slide forward or backward,
move right.

To lock seat into position,

release.

4. Suspension control To adjust to approximate

body weight for additional
comfort, move left or right.

c00ic216w.eps

5. Cab controller EDT port For use only by qualified Ditch Witch technicians.
6. Recline control To recline, move backward.

To raise, move forward.

Controls - 58 JT/AT32 Operator’s Manual
Console, Left

Console, Left
Drilling/Operation

3 6
2 5 8
7 9
10

15

11

12
14 13
j87om008w21.eps

1. Jog clockwise control (AT only) 9. Remote engine start control

2. Manual inner spindle control (AT only) 10. Rotary operation control
3. Automated inner spindle control (AT only) 11. Automated inner spindle selector
4. Jog counterclockwise control (AT only) 12. Fluid flow selector
5. Autocarve control 13. Carve window selector
6. Two-speed rotation control 14. Outer spindle brake control* (AT only)
7. Throttle down control 15. Not used
8. Autothrottle control *If equipped
JT/AT32 Operator’s Manual Controls - 59
Console, Left

Item Description IMPORTANT

1. Jog clockwise control To turn inner rod clockwise at
a fixed speed, press.

To stop, press again.

c00ic185w.eps

2. Manual inner spindle To turn on, press. Must be in AT mode. See display
control manual for more information.
To turn off, press again.
Use rotary operation control to
control inner rotation. See “Rotary
operation control” on page 61.

Control must be off to automatically

control inner rotation speed and
c00ic184w.eps
direction.
3. Automated inner spindle To turn on, press. Must be in AT mode. See display
control manual for more information.
To turn off press again.
Inner spindle selector must be on.
See “Automated inner spindle
selector” on page 61.

Use rotary operation control to

control inner rotation. See “Rotary
c00ic183w.eps
operation control” on page 61.

Control must be off to manually

control inner rotation speed and
direction.
4. Jog counterclockwise To turn inner rod
control counterclockwise at a fixed
speed, press.

To stop, press again.

c00ic186w.eps
Controls - 60 JT/AT32 Operator’s Manual
Console, Left

Item Description IMPORTANT

5. Autocarve control To enable autocarve, press. Carve window selector must be on.
See “Carve window selector” on
To disable, press again. page 62.

Use rotary operation control to adjust

carve window. See “Rotary operation
control” on page 61.

c00ic187w.eps

6. Two-speed rotation To rotate in high speed, When using autocarve, multi-use

control press. button controls rotation speed.

To rotate in low speed, press

again.

c00ic189w.eps

7. Throttle down control To decrease engine speed, Engine speed will be decreased
press. incrementally each time control is
pressed.

c00ic193w.eps

8. Autothrottle control To turn on, press. Autothrottle mode slows engine to

low throttle after 15 seconds of
AUTO To turn off, press again. inactivity. To return to high speed:
activate thrust, rotation, drilling fluid,
or an add/remove pipe cycle.

c00ic192w.eps
JT/AT32 Operator’s Manual Controls - 61
Console, Left

Item Description IMPORTANT

9. Remote engine start To start engine from operator Works only when key in set-up
control station, press. console is on, operator is in seat, and
battery disconnect switch is off.

See “Drive” on page 85.

c00ic199w.eps

10. Rotary operation control Turn knob to control the Function must be selected before
following functions: using rotary operation control.

• manual inner spindle Press and turn knob to allow finer

speed control of functions.
• automated inner spindle
speed
• fluid flow
• carve window

To increase, move right.

To decrease, move left.

11. Automated inner spindle To turn on, press. Must be in AT mode. See display
selector manual for more information.
To turn off, press again.
Automated inner spindle control
must be on. See “Automated inner
spindle control” on page 59.

n/min Use rotary operation control to adjust

inner spindle speed. See “Rotary
c00ic196w.eps
operation control” on page 61.
12. Fluid flow selector To enable fluid flow, press. Drilling fluid pump must be enabled.
See “Drilling fluid pump switch” on
To disable, press again. page 70.

Use rotary operation control to adjust

fluid flow. See “Rotary operation
control” on page 61.

c00ic198w.eps
Controls - 62 JT/AT32 Operator’s Manual
Console, Left

Item Description IMPORTANT

13. Carve window selector To enable carve window, Must be in AT mode. See display
press. manual for more information.

To disable, press again. Autocarve control must be on. See

“Autocarve control” on page 60.

Use rotary operation control to adjust

carve window. See “Rotary operation
c00ic197w.eps
control” on page 61.
14. Outer spindle brake To set, press. Prevents outer spindle from rotating
control when inner spindle or drilling fluid
To release, press again. motor are in use.

Brake is temporarily released when

front wrench is clamped to allow pipe
change.

c00ic188w.eps

15. Not used

JT/AT32 Operator’s Manual Controls - 63
Console, Left

Miscellaneous

j87om009w21.eps

Item Description IMPORTANT

1. ESID alarm interrupt/ To turn off strike alarm at Self-test checks all systems and
self-test switch drill, press top. circuits except voltage limiter.

To start manual self-test, See “If an Electric Line is Damaged”

press bottom. on page 17.

To reset system after a strike

has been detected, press
bottom.

2. Horn To sound horn, press and

hold.

c00ic194w.eps
Controls - 64 JT/AT32 Operator’s Manual
Console, Left

Pipe Loading

3
4

5
6

8
2

1
10
12 11

j87om010w21.eps

IMPORTANT: Joystick controls shown are Ditch Witch mode controls. For other control configurations,
see display.

1. Remove pipe control 7. Pipe lift switch

2. Select previous row control 8. Left joystick/Wrench control
3. Select next row control 9. Display left joystick map switch
4. Add pipe control 10. Pipe lubricator switch
5. Pipe gripper switch 11. Set/Resume switch
6. Pipe shuttle switch 12. Rear wrench rotation switch
JT/AT32 Operator’s Manual Controls - 65
Console, Left

Item Description IMPORTANT

1. Remove pipe control To enable automated remove See “Enable Automated Pipe Loader
pipe function, press. System” on page 107.

To enable manual pipe loader

controls, press again.

c00ic191w.eps

2. Select previous row To move shuttle to previous See “Row Select” on page 151.
control row in pipe box, press.

c00ic182w.eps

3. Select next row control To move shuttle to next row See “Row Select” on page 151.
in pipe box, press.

c00ic181w.eps

4. Add pipe control To enable automated add See “Enable Automated Pipe Loader
pipe function, press. System” on page 107.

To enable manual pipe loader

controls, press again.

c00ic190w.eps
Controls - 66 JT/AT32 Operator’s Manual
Console, Left

Item Description IMPORTANT

5. Pipe gripper switch To close, press top.

To open, press bottom.

6. Pipe shuttle switch To move toward pipe box

(retract), press top.

To move toward spindle

(extend), press bottom.

7. Pipe lift switch To raise, press top.

To lower, press bottom.

8. Left joystick/Wrench To clamp rear wrench, push Joystick functions change with
control forward. alternate control option. See
“Alternate Control Option” on
To unclamp rear wrench, pull page 46.
back.

To clamp front wrench, move

to right.

c00ic612h.eps
To unclamp front wrench,
move to left.
9. Display left joystick map To display left joystick map,
press.
JT/AT32 Operator’s Manual Controls - 67
Console, Left

Item Description IMPORTANT

10. Pipe lubricator switch To apply tool joint
compound, press.

11. Set/Resume switch To resume operation or See “Cruise Control” on page 127.
increase operation levels,
RESUME / press top. See “Use Autocarve Mode” on
page 114.
To set operating conditions or
reduce operation levels, See “Pipe Loader” on page 146.
press bottom.
SET /
c00ic113h.eps

12. Rear wrench rotation To rotate counterclockwise,

switch press top.

To rotate clockwise, press

bottom.
Controls - 68 JT/AT32 Operator’s Manual
Console, Right

Console, Right
1

13

12
3

11

10 4

5
j95om053w22.eps
9 8 7 6

IMPORTANT: Joystick controls shown are Ditch Witch mode controls. For other control configurations,
see display.

1. Upper display 8. Two-speed carriage control

2. Lower/Remote* display 9. Display right joystick map
3. USB port 10. Drilling fluid pump switch
4. Auxiliary outlet 11. Not used
5. Remote engine stop switch 12. Not used
6. Rotation/Thrust control 13. Not used
7. Drilling fluid quick-fill switch *If equipped.

Item Description IMPORTANT

1. Upper display Displays graphic symbols for See display manual for more
indicators and conditions. information.
JT/AT32 Operator’s Manual Controls - 69
Console, Right

Item Description IMPORTANT

2. Lower/Remote display Displays graphic symbols for See display manual for more
indicators and conditions. information.

If using a Subsite Electronics tracking

system, information from the tracker
is also displayed. See tracking system
operator’s manual for more
information.
3. USB port Provides power for mobile Power output is 5VDC, 1A.
devices.
4. Auxiliary outlet Provides power for other Power output is 12VDC, 5A.
equipment.

c00ic179h.eps

5. Remote engine stop To stop engine, press. If used to stop machine, ensure
switch ignition switch is in the off position.

If wrenches are clamped when

remote engine stop is pressed,
wrenches could gradually unclamp.
Controls - 70 JT/AT32 Operator’s Manual
Console, Right

Item Description IMPORTANT

6. Rotation/Thrust control To rotate spindle
counterclockwise (breakout),
move left.

To rotate spindle clockwise

(make up), move right.

c00ic674w.eps

To move carriage forward

(thrust), push.

To move carriage backward

(pull back), pull.

c00ic675w.eps

7. Drilling fluid quick-fill To fill pipe with fluid, press Overrides fluid control setting for full
switch and hold. pump flow. Also overrides temporary
fluid shutdown when front wrench is
To return fluid to flow control clamped.
setting, release.

c00ic677w.eps

8. Two-speed carriage To thrust in high speed, press

control and hold.

To return to regular speed,

release.
9. Display right joystick To display right joystick map,
map press.
10. Drilling fluid pump To turn on, press. Use rotary operation control to
switch control drilling fluid flow. See “Rotary
To turn off, press again. operation control” on page 61.

Drilling fluid pump switch and fluid

flow selector must be on before using
rotary operation control to control
drilling fluid control. See “Fluid flow
selector” on page 61.
c00ic676w.eps
JT/AT32 Operator’s Manual Controls - 71
Console, Right

Item Description IMPORTANT

11. Not used
12. Not used
13. Not used
Controls - 72 JT/AT32 Operator’s Manual
Console, Set-Up

Console, Set-Up
Controls
3 4
2
1

6
5
j59om001w.eps

1. Cold start wait indicator 4. Wash wand switch

2. Ignition switch 5. Left track switch
3. Engine shutdown override switch 6. Right track switch

Item Description IMPORTANT

1. Cold start wait indicator Lights when intake air- See “Start” on page 86.
preheater is operating.
JT/AT32 Operator’s Manual Controls - 73
Console, Set-Up

Item Description IMPORTANT

2. Ignition switch To activate accessories, turn If wrenches are clamped when
right. machine is turned off, wrenches will
unclamp and then clamp when
To start engine, turn right engine is started.
and hold.
See “Drive” on page 85.
To shut off machine, turn left.

3. Engine shutdown If engine shutdown indicator NOTICE: After 30 seconds, engine will
override switch lights, press to delay engine shut down unless fault condition has
shutdown for 30 seconds. been corrected.

See “Electronic Controlled Engine

Overview” on page 129.

c00ic178h.eps

4. Wash wand switch To turn wash wand on, press

top.

To turn off, press bottom.

c00ic204w.eps

5. Left track switch To move left track forward, Use only if wireless control is
press top. inoperable.

To move in reverse, press

bottom.

c00ic147h.eps

6. Right track switch To move right track forward, Use only if wireless control is
press top. inoperable.

To move in reverse, press

bottom.

c00ic148h.eps
Controls - 74 JT/AT32 Operator’s Manual
Console, Set-Up

Wireless Remote Control

8_22_2019.eps

IMPORTANT:

• Operator station must be empty to operate wireless remote control.

• Wireless remote control should be paired to receiver at factory. See “Wireless Remote Control” on
page 153.

1. Communication link indicator 7. Drive mode switch

2. Power status indicator 8. Left multifunction joystick
3. Power/Enable/Horn switch 9. Throttle switch
4. Right multifunction joystick 10. Ground drive mode select switch
5. Operator presence switch 11. LCD display
6. Engine stop
JT/AT32 Operator’s Manual Controls - 75
Console, Set-Up

Item Description IMPORTANT

1. Communication link Indicates status of An active communication link is
indicator communication link between required to operate wireless remote
wireless remote control and control.
machine.
• Flashing yellow indicates no
communication link.
• Flashing green indicates good
communication link.
• Steady red indicates an internal
problem. Contact your Ditch
Witch dealer.
2. Power status indicator Indicates battery status and Off indicates good battery level.
cable connection.
Flashing red indicates low battery
level.

Solid green indicates transmitter is

connected to and powered by
machine.
c00ic008w.eps

3. Power/Enable/Horn To turn power on, move up Wireless remote control indicator

switch and hold until (page 4) will light.
communication link indicator
lights yellow and then flashes Ensure left and right multifunction
green. joysticks are in neutral position.

To start operation, move up Must be moved up after changing

and hold until horn sounds. modes to enable new function. See
“Ground drive mode select switch”
c00ic044h.eps
To use horn, move up. on page 76.

To turn power off, move Wireless remote control turns off and
down until indicator turns communication link indicator flashes
off. after one minute of inactivity. Move
up twice to restart.
4. Right multifunction To control selected system, See “Multifunction Joystick Control
joystick move. Modes” on page 77.
Controls - 76 JT/AT32 Operator’s Manual
Console, Set-Up

Item Description IMPORTANT

5. Operator presence To operate wireless remote Must be released and pressed again
switch control, press one or both after changing modes to enable new
switches. function. See “Ground drive mode
select switch” on page 76.

c00ic682w.eps

6. Engine stop To stop engine, press. Ignition switch must be turned off
before restarting engine.

7. Drive mode switch To select normal driving Use transport mode when loading
mode (high), move up. and unloading machine.

To select transport mode

(low), move down.

c00ic146h.eps

8. Left multifunction To control selected system, See “Multifunction Joystick Control

joystick move. Modes” on page 77.
9. Throttle switch To increase engine speed,
move up.

To decrease, move down.

10. Ground drive mode To move up through modes, Enable switch must be pressed after
select switch move up. changing modes to enable new
function.
To move down through
modes, move down.
JT/AT32 Operator’s Manual Controls - 77
Console, Set-Up

Item Description IMPORTANT

11. LCD display Displays selected mode of
operation.

Multifunction Joystick Control Modes

The multifunction joystick controls can be used to control multiple systems by selecting various modes.

IMPORTANT: To switch between modes, see “Ground drive mode select switch” on page 74.

Left Multifunction Joystick Modes

Item Description IMPORTANT

Dual joystick ground drive To move right track forward, Operator presence switch(es) must be
control move up. pressed and operator seat must be
empty for control to work.
To move in reverse, move
down. See “Steer” on page 87.

c00ic229w.eps

Left stabilizer control To raise, move up. Lower left and right stabilizers to the
ground together, then adjust
To lower, move down. individually.

Front frame tilt control To raise, move up. To ensure a stable platform for
drilling, use front and back tilt
To lower, move down. controls together to set frame as
desired without raising tracks off
ground.
Controls - 78 JT/AT32 Operator’s Manual
Console, Set-Up

Item Description IMPORTANT

Dual joystick left anchor To drive, move down.
control
To remove, move up.

c00ic209w.eps

Dual joystick right anchor To drive, move down.

control
To remove, move up.

c00ic210w.eps
JT/AT32 Operator’s Manual Controls - 79
Console, Set-Up
Right Multifunction Joystick Modes

Item Description IMPORTANT

Single joystick ground drive To move tracks forward, Operator presence switch(es) must be
control move up. pressed and operator seat must be
empty for control to work.
To move in reverse, move
down. See “Steer” on page 87.

To steer, move left or right.

c00ic145h.eps

Right stabilizer control To raise, push up. Lower left and right stabilizers to the
ground together, then adjust
To lower, pull down. individually.

Back frame tilt control To raise, push up. To ensure a stable platform for
drilling, use front and back tilt
To lower, push down. controls together to set frame as
desired without raising tracks off
ground.

Operation station slide To move toward drill, press Drill icon will appear when operator
control left. station is in correct position for
drilling.
To move away from drill,
press right.

c00ic208w.eps
Controls - 80 JT/AT32 Operator’s Manual
Console, Set-Up

Item Description IMPORTANT

Dual joystick left anchor To raise, move up.
control
To lower, move down.

c00ic209w.eps

Dual joystick right anchor To raise, move up.

control
To lower, move down.

c00ic210w.eps

Dual joystick ground drive To move right track forward, Operator presence switch(es) must be
control move up. pressed and operator seat must be
empty for control to work.
To move in reverse, move
down. See “Steer” on page 87.

c00ic229w.eps
JT/AT32 Operator’s Manual Controls - 81
Engine Compartment

Engine Compartment
2 3

j87om011w21.eps

1. Throttle switch 3. DrillLok key

2. Auxiliary outlet 4. Hydraulic fluid and temperature sight glass

Item Description IMPORTANT

1. Throttle switch To increase engine speed, Use this switch only if throttle switch
press top. on console does not work.

To decrease engine speed,

press bottom.

c00ic243h.eps

2. Auxiliary outlet Provides power for other 12VDC, 5A

equipment
Controls - 82 JT/AT32 Operator’s Manual
Engine Compartment

Item Description IMPORTANT

3. DrillLok key To allow tracker operator to Top icon is shown when operating
stop thrust and rotation, turn with Subsite Electronics tracker.
key left.
Bottom icon is shown when operating
To override DrillLok mode, without Subsite Electronics tracker.
turn key right.
Remove key and keep in tracker
operator’s possession.

c00ic122w.eps

4. Hydraulic fluid and Displays hydraulic fluid level Normal hydraulic fluid temperature is
temperature sight glass and temperature. less than 175°F (79°C).
JT/AT32 Operator’s Manual Controls - 83
Open Station Seat

Open Station Seat

1 4

2 3
j87om012w21.eps

Item Description IMPORTANT

1. Lumbar support control To adjust lumbar support,
move.
2. Slide control To slide forward or backward,
pull then adjust seat.

To lock seat in position,

release.
3. Suspension control To adjust to approximate
body weight for additional
comfort, move left or right.
4. Recline control To recline back of seat, move
backward.

To raise back of seat, move

forward.
Controls - 84 JT/AT32 Operator’s Manual
Wireline Restricted Operating Mode (ROM)

Wireline Restricted Operating Mode (ROM)

j87om015w21.eps

IMPORTANT: For more information about optional wireline, see “Wireline Operation” on page 156.

Item Description IMPORTANT

ROM switch To enable wireline restricted Indicator will light when wireline
operating mode, release and restricted operating mode is on. See
rotate ladder (1) down as display manual for more information.
shown, or press top of switch
(2).

To disable, rotate ladder up

or press bottom of switch.
c00ic133w.eps
JT/AT32 Operator’s Manual Drive - 85

Drive
Chapter Contents
For additional precautions, see “Safety Awareness” and “Prepare” chapters.

IMPORTANT: For more information on how to operate controls, see “Controls” chapter.

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Steer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
• Slope Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
• Reduce Track Wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Drive - 86 JT/AT32 Operator’s Manual
Start

Start
EMERGENCY SHUTDOWN: Turn ignition switch off.

Misuse of machine can cause death or serious injury.

Read and understand operator’s manual and all other safety instructions
before use. Know how to use all controls.

To help avoid injury:

• Allow hydraulic fluid time to warm before operating in cold weather. Cold hydraulic fluid can
lengthen ground drive stopping time.
• For starting in extreme temperatures, contact your Ditch Witch dealer.

Pre-heater. Fire or explosion can cause death or serious

injury. Never use starter fluid.

NOTICE: If engine turns but does not start within 30 seconds, engine ECU will prevent starting to allow
starter to cool. Wait at least two minutes and try again.

1. Ensure all controls are in neutral.

2. Insert key and activate accessories using ignition switch.
3. If starting machine in normal conditions, start engine and run at low throttle under light load for at
least three minutes before applying heavier load.
If starting machine in cold weather:
1. When cold start wait indicator turns off, start engine.
2. Warm engine and hydraulic fluid by gradually increasing engine speed for up to 30 minutes.
3. After warmup, carefully operate all hydraulic controls at low throttle until controls operate as
described in controls chapter.
JT/AT32 Operator’s Manual Drive - 87
Steer

Steer
NOTICE:
• Drive carefully in congested areas. Know machine’s clearance and turning radius.
• Survey field of vision when operating machine.

Use wireless remote control or tethered ground drive controller to steer machine using either single
joystick ground drive mode or dual joystick ground drive mode.

Single Joystick Ground Drive

Ref. Direction
Forward

Forward to the right

Clockwise counter rotation to the

right

Counterclockwise counter rotation to

the right

Reverse to the right

SteeringJoysck.eps

Reverse

Reverse to the left

Clockwise counter rotation to the left

Counterclockwise counter rotation to

the left

Forward to the left

Dual Joystick Ground Drive

To steer while moving forward or in reverse, move one joystick slightly more than the other to turn in
desired direction. Machine will gradually turn.

For tight steering at low speed, pull one joystick and push the other to turn in desired direction. Tracks will
counter-rotate and machine will turn in a tight circle.
Drive - 88 JT/AT32 Operator’s Manual
Steer

Slope Guidelines

Tipover. Crushing can cause death or serious injury.

Follow procedure in operator’s manual. Drive cautiously.

To help avoid injury:

• Operate at slow speed when on rough terrain.

• Avoid driving across slopes.
• Never jerk control levers. Use a steady, even motion.
• Always operate from the uphill side of the machine.

Operating safely on a slope depends upon many factors including:

• distribution of machine weight (can change due to configuration)

• height of load
• even or rough ground conditions
• potential for ground giving way causing unplanned tilt forward, reverse or sideways
• nearness of ditches, ruts, stumps or other obstructions and sudden changes in slope
• speed
• turning
• braking performance
• operator skill
JT/AT32 Operator’s Manual Drive - 89
Shut Down

Reduce Track Wear

Rubber tracks are best suited at soil-based jobsites with minimal rocks and debris. To reduce track wear
drive slowly and make wide turns. Avoid the following:

• spinning tracks under heavy load

• turning on sharp objects such as stones, broken concrete, or debris
• quick turns on asphalt or concrete
• driving over curbs or ledges
• driving with track edges pressed against hard walls or curbs
• operating on corrosive materials such as salt or fertilizer

Shut Down
1. When job is complete, move machine to level ground.
2. Stop machine movement.
3. Lower stabilizers to ground.
4. Lower drill frame to ground.
5. Return all controls to neutral.
6. Run engine at low throttle with no load for at least three minutes to cool.
7. Shut off machine.
8. If leaving machine unattended, remove key.
9. For maintenance or long-term storage, disconnect battery using battery disconnect switch.

NOTICE: Wait two minutes after shutting off machine before disconnecting battery.
Drive - 90 JT/AT32 Operator’s Manual
Shut Down
JT/AT32 Operator’s Manual Transport - 91

Transport
Chapter Contents
For additional precautions, see “Safety Awareness” and “Prepare” chapters.

IMPORTANT: For more information on how to operate controls, see “Controls” chapter.

Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
• Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
• Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Haul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
• Inspect Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
• Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
• Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
• Unload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Retrieve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Transport - 92 JT/AT32 Operator’s Manual
Lift

Lift
Lifted load. Crushing weight can cause death or serious
injury. Stay away from lifted load and its range of movement.

Points
Lifting points are identified by lifting decals. Lifting at other points is unsafe
and can damage machinery.

Procedure
This machine is not configured for lifting. If the machine must be lifted, load
machine into a container or onto a platform appropriate for lifting. See
“Specifications” on page 203 for machine weight.

IMPORTANT: For pipe box lifting procedures, see See “Remove/Install Pipe Box” on page 149.
JT/AT32 Operator’s Manual Transport - 93
Haul

Haul
Horizontal movement. Crushing can cause death or
serious injury. Read and understand operator’s manual and all safety
instructions before use.

Misuse of machine can cause death or serious injury.

Read and understand operator’s manual and all other safety instructions
before use. Know how to use all controls.

To help avoid injury:

• Read trailer operator’s manual before loading or transporting machine.

• Ensure tow vehicle has proper tow capacity rating.
• Incorrect loading can cause trailer swaying.
• Attach trailer to vehicle before loading or unloading.
• Load and unload trailer on level ground.
• To help prevent trailer sway, load trailer so that 10-15 percent of total vehicle weight (equipment
plus trailer) is on tongue.

NOTICE: Ensure that any downhole tool or pipe in wrenches is attached to spindle or removed before
transport. Wrenches can unclamp after engine shutdown.

Inspect Trailer
• Check hitch for wear and cracks.
• Check battery for 12V charge.
• Inspect lights for cleanliness and correct operation.
• Inspect reflectors and replace if needed.
• Check tire pressure.
• Check lug nut torque.
• Ensure trailer brakes are adjusted to come on with tow vehicle brakes.
• Check trailer bed for cracks.
Transport - 94 JT/AT32 Operator’s Manual
Haul

Load
1. Start engine.
2. Ensure transport mode is selected.
3. Move machine to rear of trailer and align with ramps.
4. Drive forward slowly in low throttle to move machine onto trailer until tiedown position is reached.
5. Lower stabilizers to trailer floor.
6. Lower drill frame to trailer floor.
7. Turn off machine.
8. Tie down machine. See “Tie Down” on page 94.
9. Ensure all covers are properly secured.

Tie Down
Points
Tiedown points are identified by tiedown decals. Securing to truck or trailer at
other points is unsafe and can damage machinery.
JT/AT32 Operator’s Manual Transport - 95
Haul

Procedure

NOTICE:

• Use minimum Grade 7, 3/8” (18.7cm) transport chain to secure machine to trailer.
• If hauling machine without pipe box, remove remaining pipe in drill frame chute.

Loop a transport chain around each tie down point. See chart below for correct distances between
tiedown ends. Ensure tiedowns are tight before transporting.

A A A A

B
B

A A A A
j87om013w21.eps

Distance US Metric
A greater than 6” greater than 15cm
B less than 51” less than 130cm
C greater than 6” greater than 15cm

Unload
1. Prepare trailer and ramps for unloading.
2. Remove tiedowns.
3. Start engine.
4. Ensure transport mode is selected.
5. Raise stabilizers.
6. Raise drill frame.
7. Set throttle to low.
8. Slowly back machine down trailer or ramps.
Transport - 96 JT/AT32 Operator’s Manual
Haul

Retrieve
Under normal conditions, machine should not be towed. If machine becomes disabled and retrieval is
necessary:

• Tow for short distances at less than 1mph (1.6km/h).

• Use maximum towing force of 1.5 times machine weight.
• Use towing chains appropriately rated for maximum towing force.
1. Block tracks.
2. Loop chain through each tow point (1) and
bring together to central pull point (2) facing 1
towing vehicle.

NOTICE: Arrange chains so angle (A) is 2

less than 120°.

A
j87om016w21.eps

3. Reverse small cover plate in center of each

planetary to switch from normal operation
mode (2) to towing mode (3).

NOTICE: When planetaries are

disengaged, machine has no brakes.

4. Remove blocks.
5. After towing, switch cover plates to normal
operation mode.
2 3

j59om011w.eps
JT/AT32 Operator’s Manual Conduct a Bore - 97

Conduct a Bore
Chapter Contents
For additional precautions, see “Safety Awareness” and “Prepare” chapters.

IMPORTANT: For more information on how to operate controls, see “Controls” chapter.

Position Equipment . . . . . . . . . . . . . . . . . . . . . . . 99
Connect Fluid System . . . . . . . . . . . . . . . . . . . . . . 99
Start System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Prime Fluid Pump . . . . . . . . . . . . . . . . . . . . . . . . 100
Operate Carriage Control . . . . . . . . . . . . . . . . . . 101
Clamp Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Assemble Drill String . . . . . . . . . . . . . . . . . . . . . 103
• Prepare Beacon Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
• Use Direct Connect Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
• Use EZ Connect Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
• Connect Drill Pipe to Downhole Tool . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Drill First Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Swab the Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Enable Automated Pipe Loader System . . . . . . 107
Conduct a Bore - 98 JT/AT32 Operator’s Manual

Add Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

• AT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
• JT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Correct Direction . . . . . . . . . . . . . . . . . . . . . . . . . 112

• Basic Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
• Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
• Drill Head Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Use Autocarve Mode . . . . . . . . . . . . . . . . . . . . . 114

Record Bore Path . . . . . . . . . . . . . . . . . . . . . . . . 115
Surface Drill Head . . . . . . . . . . . . . . . . . . . . . . . . 116
Backream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
• Assemble Backream String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
• Begin Backream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Remove Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

• Break Front Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
• Break Rear Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Remove Pullback Device . . . . . . . . . . . . . . . . . . 120

JT/AT32 Operator’s Manual Conduct a Bore - 99
Position Equipment

Position Equipment
1. Move equipment into selected positions. See “Select Start and End Points” on page 24.
2. Connect and test electric strike system. See “Electric Strike System” on page 144.
3. Drive anchors. See “Drive” on page 85.

Connect Fluid System

NOTICE: Do not connect machine to a public or private water supply.

1. Connect fluid hose from fluid mixer to fluid

pump. A 2” (50.8mm) or larger, non-
collapsible hose is required.
2. Install y-strainer between fluid mixer and fluid
pump. Position y-strainer so that fluid flows in
the direction of the arrow.

IMPORTANT:

• In most cases, positioning y-

strainer at outlet of fluid mixer
gives the best results.
• Clean y-strainer regularly. See
“Drilling Fluid Y-Strainer” on
page 179.
Conduct a Bore - 100 JT/AT32 Operator’s Manual
Start System

Start System
EMERGENCY EXIT: If operating machine with cab, push window and exit cab in case of emergency.

1. Start engine.
2. Start fluid mixer.

IMPORTANT: Ensure mixture of drilling fluid matches drilling conditions. See “Drilling Fluid” on
page 140.

3. Enable DrillLok mode, if equipped. See “DrillLok” on page 143.

4. Set to high throttle.
5. Fill pipe with drilling fluid until pressure begins to rise.

Prime Fluid Pump

NOTICE: Failure to prime fluid pump will cause flow fluctuations, which will make it difficult to control
the wash wand.

Prime fluid pump each time tank is changed. To prime:

1. Fill drilling fluid hose.

2. Connect hose to machine.
3. Operate mixing/transfer pump on fluid mixer at full speed for 1-3 minutes to discharge air from
system.
4. Return mixing/transfer pump on fluid mixer to normal operating speed and continue bore.
5. If drilling fluid pressure surges, repeat step 3.
JT/AT32 Operator’s Manual Conduct a Bore - 101
Operate Carriage Control

Operate Carriage Control

IMPORTANT:

• Counterclockwise rotation can unthread pipe in the ground.

• During assisted makeup, carriage control joystick controls only speed and direction of rotation,
not thrust. See “Make Up and Break Out Joints Correctly” on page 139.

During drilling and backreaming, the carriage

control joystick controls both thrust and rotation
and allows any combination of the two based on
position of the joystick.

Ref. Description
Forward thrust with no rotation

Forward thrust with counterclockwise

rotation

No thrust with counterclockwise

rotation CarriageControlJoysck.eps

Reverse thrust with counterclockwise

rotation

Reverse thrust with no rotation

Reverse thrust with clockwise rotation

No thrust with clockwise rotation

Forward thrust with clockwise rotation

Conduct a Bore - 102 JT/AT32 Operator’s Manual
Clamp Pipe

Clamp Pipe
Moving parts. Contact can cause serious injury. Stay
away.

Clamp pipe when joint is between wrenches (1

and 2) as shown.

NOTICE: Clamp only where indicated. Clamping

anywhere else on pipe will damage wrenches
and/or weaken the pipe. Pipe can later break,
even when operating under normal loads.
JT/AT32 Operator’s Manual Conduct a Bore - 103
Assemble Drill String

Assemble Drill String

Moving or thrown tools. Impact will cause death or
serious injury. Never use pipe wrenches on drill string. Follow procedure
in operator’s manual.

1 3 2 5 2
2
1
1

7
3 4 6
j59om123w.eps
4 3

AT Mode AT Dirt/JT Mode Direct Connect AT Dirt/JT Mode EZ Connect

1. Rockmaster® tool 1. Bit 1. Bit
2. Bit 2. Beacon housing 2. Beacon housing
3. Drill pipe 3. Transition sub 3. Adapter
4. Drill pipe 4. Collar
5. Transition sub
6. Drill pipe
7. Bolt

Prepare Beacon Housing

NOTICE: Beacon must be calibrated after installation in housing. See beacon operator’s manual.

IMPORTANT: Nozzle and bit selection depends on job conditions. See page 137 for more information or
contact your Ditch Witch dealer.

1. Select nozzle, if needed.

2. Select bit.
3. Attach bit to beacon housing.
4. Ensure Rockmaster tool is properly lubricated (AT only).
5. Install beacon. See beacon operator’s manual.
6. Install beacon housing lid.
Conduct a Bore - 104 JT/AT32 Operator’s Manual
Assemble Drill String

Use Direct Connect Method

2 1
1. Start engine.
2. Position transition sub (2) in front wrench.
3. Apply tool joint compound.
4. Clamp front wrench.
5. Slowly move carriage forward until SaverLok®
body meets transition sub.
6. Rotate spindle clockwise until SaverLok
threads onto transition sub.
7. Shut off machine.
j59om122w.eps
8. Connect beacon housing (1) to transition sub.
9. Start engine.
10. Position joint between wrenches.
11. Use machine torque to tighten joint fully.

Use EZ Connect Method 1

4
1. Apply tool joint compound to adapter
threads.
2. Use quick wrench to connect adapter (2) to
beacon housing (1).
3. Slide collar (3) onto transition sub (4).
4. Apply tool joint compound to threads. 5
5. Connect adapter to transition sub.
6. Unthread connection at least one full flat to
align flats.
3 2
j59om133w.eps
IMPORTANT: Joint will not be tight.
Assembly should have visible gap at
shoulder.

7. Slide collar over flats on both transition sub and adapter, ensuring hole in collar is aligned with hole in
transition sub.
8. Install bolt (5).
JT/AT32 Operator’s Manual Conduct a Bore - 105
Assemble Drill String

Connect Drill Pipe to Downhole Tool

1. Start engine.
2. Clamp tool in front wrench.
3. Load pipe.
3.1 Ensure shuttle stop is positioned correctly.
3.2 Apply tool joint compound to threads in front wrench.
3.3 Lower pipe lifters.
3.4 Close grippers.
3.5 Extend shuttles.
4. Connect pipe to SaverLok body.

IMPORTANT: Always rotate clockwise unless breaking pipe joint. Rotating counterclockwise
will separate joints.

4.1 Move carriage forward until SaverLok system meets pipe.

4.2 Rotate spindle clockwise until SaverLok system threads onto pipe.
4.3 Relax grippers.
5. Connect pipe.
5.1 Slowly move carriage forward to allow pipe to match up.
5.2 Rotate spindle clockwise until pipe threads together.
5.3 To fully tighten joint, slowly rotate pipe until spindle stops turning.
5.4 Unclamp wrench.
5.5 Open grippers fully.
5.6 Raise pipe lifters.
5.7 Retract shuttles.
Conduct a Bore - 106 JT/AT32 Operator’s Manual
Drill First Pipe

Drill First Pipe

Rotating shaft. Crushing will cause death or serious
injury. Stay away.

To help avoid injury:

• The tracker operator must have communication with the drill operator or DrillLok system must be
enabled with the DrillLok key in the operator’s possession.
• Do not stand or walk over the bore path while drill string is moving during drilling and
backreaming.
• Drill string may wind up during drilling and backreaming. Stay away from drill string until all
movement has stopped.

Underground utilities. Contact can cause death or

serious injury. Locate and verify underground utilities before digging or
drilling.

To help avoid injury:

• Use electric strike system.

• Expose line by careful hand digging or soft excavation. Use beacon to track bore path. If utility
must be crossed, tracker operator must watch the drill head during drilling and backreaming.
Consider type and stability of soil around exposed lines. Take precautions to ensure ground does
not give way under tracker operator.

1. Turn on drilling fluid.

2. Visually check for drilling fluid flow.
3. Turn drill outer pipe to starting position, if equipped.
4. Rotate inner spindle clockwise, if equipped.
5. Slowly move carriage forward. Drill first pipe as straight as possible.
JT/AT32 Operator’s Manual Conduct a Bore - 107
Swab the Hole
6. Monitor gauges.

NOTICE: AT only:

• If inner rotation torque approaches 1200ft-lb (1627N•m), slow carriage travel.

• If inner rotation stalls, stop carriage thrust. If inner rotation does not resume, pull pipe
back.

Swab the Hole

Swab the hole as needed after each pipe is drilled
to remove cuttings and keep the bore clear.

IMPORTANT: Some conditions may require

more frequent swabbing.

1. Move carriage forward until it touches rear

wrench.
2. Move carriage to rear of drill frame with drilling fluid and inner rotation on.
3. Move carriage forward until pipe joint is properly located between wrenches for joint breakout.

Enable Automated Pipe Loader System

IMPORTANT:

• If operator leaves the seat during an add or remove pipe cycle, pipe cycle will pause. When
operator returns to the seat, the resume button must be pressed to continue automation.
• For best results, automated pipe loader should be enabled before clamping front wrench on pipe.

Add Pipe Remove Pipe

1. Ensure correct pipe row is selected. If current 1. Ensure correct pipe row is selected. If current
row is empty, select next full row. row is empty, select next full row.
2. Ensure shuttles are positioned under selected 2. Ensure shuttles are positioned under selected
row. Extend and retract shuttles to allow row row. Extend and retract shuttles to allow row
stop to move if needed. stop to move if needed.
3. Turn on autothrottle. 3. Turn on autothrottle.
4. Add pipe. Pipe will be lowered into grippers. 4. Remove pipe. Pipe will be lifted out of
See “Add pipe control” on page 65. grippers. See “Remove pipe control” on
page 65.
Conduct a Bore - 108 JT/AT32 Operator’s Manual
Add Pipe

Add Pipe
AT Mode
1. Turn autothrottle on.
2. Enable automated pipe loader system (optional).
3. Break joint at SaverLok body.
3.1 Rotate outer pipe to 3 o’clock.
3.2 Clamp front wrench.
3.3 Locate drill head.
3.4 Rotate spindle counterclockwise. Carriage will slowly move back as threads separate.
3.5 After threads are fully separated, stop rotation and move carriage back until rear stop indicator
lights. If automated pipe loader mode is selected tool joint compound will be applied while
carriage is moving.
4. Load pipe.

Manual Pipe Loader Controls Automated Pipe Loader Controls

4.1 Ensure that pipe lifters are completely 4.1 If pipe box row is empty, select next
lowered. empty row.
4.2 Close grippers. 4.2 With carriage at rear stop position,
resume.
4.3 Extend shuttles.
4.4 Apply tool joint compound at wrench.
4.5 Raise pipe lifters.

5. Connect pipe to SaverLok body.

IMPORTANT: Counterclockwise rotation can unthread pipe in the ground.

• Move carriage forward until SaverLok body meets pipe.

• Rotate spindle clockwise until SaverLok body threads onto pipe.
• Relax grippers, or resume if using automated pipe loader mode.
JT/AT32 Operator’s Manual Conduct a Bore - 109
Add Pipe
6. Connect new pipe.

Manual Pipe Loader Controls Automated Pipe Loader Controls

6.1 Slowly move carriage forward to allow 6.1 Slowly move carriage forward to allow
inner rod to match up. inner rod to match up.
6.2 Rotate spindle clockwise until pipe 6.2 Rotate spindle clockwise until pipe
threads together. threads together.
6.3 To fully tighten joint, slowly rotate pipe 6.3 Resume. Grippers will open, shuttles will
until spindle stops turning. retract, and pipe lifters will lower.
6.4 Unclamp wrench. 6.4 To fully tighten joint, slowly rotate pipe
until spindle stops turning.
6.5 Open grippers fully.
6.5 Unclamp wrench.
6.6 Retract shuttles.
6.7 Lower pipe lifters.

7. Turn on drilling fluid until pipe fills and fluid pressure begins to rise.
8. Adjust fluid flow.
9. Set clock position for steering or rotate spindle.
10. Turn inner rotation on.
11. Slowly move carriage forward.
12. Adjust rotation speed according to bit size and soil conditions. See “Systems and Equipment” on
page 121.
13. Set cruise control (optional). See “Cruise Control” on page 127.
14. Monitor gauges.
15. Locate drill head with tracker at least every half-length of pipe.

IMPORTANT:

• All tracking equipment is subject to magnetic interference. The presence of interference

can cause inaccuracies in both location and depth calculations. See tracker operator’s
manual for more information.
• To improve accuracy of depth estimate, turn inner rotation off, release spindle brake, and
rotate outer pipe to 3 o’clock.

16. Set spindle brake (optional).

Conduct a Bore - 110 JT/AT32 Operator’s Manual
Add Pipe

JT Mode
1. Enable autothrottle.
2. Enable automated pipe loader system (optional).
3. Break joint at SaverLok system.
3.1 Position pipe between wrenches. See “Clamp Pipe” on page 102.
3.2 Locate drill head.
3.3 Rotate pipe to 3 o’clock.
3.4 Clamp front wrench.
3.5 Rotate spindle counterclockwise. Carriage will slowly move back as threads separate.
3.6 After threads are fully separated, stop rotation and move carriage back until rear stop indicator
lights. If automated pipe loader mode is selected, tool joint compound will be applied while
carriage is moving.
4. Load pipe.

Manual Pipe Loader Controls Automated Pipe Loader Controls

4.1 Ensure that pipe lifters are completely 4.1 If pipe box row is empty, select next
lowered. empty row.
4.2 Close grippers. 4.2 With carriage at rear stop position,
resume.
4.3 Extend shuttles.
4.4 Apply tool joint compound at wrench.
4.5 Raise pipe lifters.

5. Connect pipe to SaverLok body.

IMPORTANT: Counterclockwise rotation can unthread pipe in the ground.

• Move carriage forward until SaverLok body meets pipe.

• Rotate spindle clockwise until SaverLok body threads onto pipe.
• Relax grippers, or resume if using automated pipe loader mode.
JT/AT32 Operator’s Manual Conduct a Bore - 111
Add Pipe
6. Connect new pipe.

Manual Pipe Loader Controls Automated Pipe Loader Controls

6.1 Slowly move carriage forward to allow 6.8 Slowly move carriage forward to allow
pipe to match up. pipe to match up.
6.2 Rotate spindle clockwise until pipe 6.9 Rotate spindle clockwise until pipe
threads together. threads together.
6.3 To fully tighten joint, slowly rotate pipe 6.10Resume. Grippers will open, shuttles will
until spindle stops turning. retract, and pipe lifters will lower.
6.4 Unclamp wrench. 6.11To fully tighten joint, slowly rotate pipe
until spindle stops turning.
6.5 Open grippers fully.
6.12Unclamp wrench.
6.6 Retract shuttles.
6.7 Lower pipe lifters.

7. Turn on drilling fluid until pipe fills and fluid pressure begins to rise.
8. Adjust fluid flow.
9. Rotate spindle.
10. Slowly move carriage forward.
11. Adjust rotation speed according to bit size and soil conditions. See “Systems and Equipment” on
page 121.
12. Set cruise control (optional). See “Cruise Control” on page 127.
13. Monitor gauges.
14. Locate drill head with tracker at least every half-length of pipe.

NOTICE: All tracking equipment is subject to magnetic interference. The presence of

interference can cause inaccuracies in both location and depth calculations. See tracker
operator’s manual for more information.
Conduct a Bore - 112 JT/AT32 Operator’s Manual
Correct Direction

Correct Direction
Correcting direction is a skill operators gain with experience and knowledge of equipment and soil
conditions. These instructions cover only basic procedures. For information about specific equipment or
jobsites, contact your Ditch Witch dealer.

To track progress and make corrections, one crew member locates the drill head and sends instructions
to the operator. Corrections are made by tracking the drill head, comparing the current position to bore
plan, and steering drill head as needed.

Basic Rules
General
• Steering ability depends on soil condition; bit, drill head, and nozzle used; roll of drill head; and
distance pushed without outer rotation.
• All corrections should be made as gradually as possible. See “Recommended Bend Limits” on page 30.
• Over correcting will cause “snaking.” This can damage pipe and will make drilling and pullback more
difficult. Begin to straighten out of each correction as early as possible.
• Do not push an entire piece of drill pipe into ground without rotation.This can exceed bend radius
and cause pipe failure.

AT Mode
• Steering in rock is slower than steering in other soil conditions.
• Inner rod is rotating at all times when AT mode is selected and inner rotation is turned on.
• Stop outer rotation and set spindle brake when making directional changes.
• Depth estimate and pitch accuracy improve if drill head is at 3 o’clock when reading is taken.
• Pull back 6” (152mm) of pipe before checking pitch.
JT/AT32 Operator’s Manual Conduct a Bore - 113
Correct Direction

Procedure
A
1. Locate drill head. Take reading available with
beacon and tracking equipment such as: B
j15om033h.eps
• depth

IMPORTANT: Depth estimate improves if drill head is at 3 o’clock position (B) rather
than at 12 o’clock or 6 o’clock position (A).

• pitch
• left/right information
• temperature
• beacon roll
2. Compare position to bore plan to determine direction.
3. Position drill head.
4. Drill pipe.

Drill Head Position

Drill head position is determined by reading
beacon roll. Roll is displayed as a clock face
position.

1. Read beacon roll.

2. Slowly rotate pipe until tracking equipment
displays desired beacon roll.

To change direction:

JT Mode AT Mode
1. Rotate pipe to intended clock position. 1. Rotate outer pipe to intended clock position.
2. Push pipe into ground. 2. Set spindle brake.
3. Start inner rotation.
4. Push pipe into ground.
Conduct a Bore - 114 JT/AT32 Operator’s Manual
Use Autocarve Mode
To move forward without changing direction:

JT Mode AT Mode
1. Rotate pipe. 1. Rotate outer pipe.
2. Push pipe into ground. 2. Start inner rotation.
3. Push pipe into ground.

Use Autocarve Mode

NOTICE: Counterclockwise rotation can unthread pipe in the ground.

IMPORTANT:

• High-speed carriage control and cruise control are disabled while in autocarve mode.
• Autocarve mode is disabled while front wrench is clamped.
• Adding or removing pipe does not affect autocarve mode.

Autocarve helps the operator change direction when thrust stalls in difficult soil conditions while drilling
in JT or AT dirt mode. Autocarve rotates the bit clockwise and counterclockwise to grind away soil,
clearing a path to improve steering through tough formations. Autocarve does not replace AT mode.

1. Rotate drill head to desired position to position downhole tool for carving.
2. Enable autocarve.
3. Push carriage control joystick forward and return to neutral to begin carving.

IMPORTANT: Pull carriage control joystick to pause carving.

4. Adjust thrust speed using set/resume switch. Adjust as needed while carving.
5. Set carve window. Adjust as needed while carving.
6. Adjust rotation speed using set/resume switch. Adjust as needed while carving. Use multi-use button
for finer adjustment.

IMPORTANT: Using multi-use button activates reaming function and will change steering
direction unless tool is stopped at original position before releasing multi-use button.
JT/AT32 Operator’s Manual Conduct a Bore - 115
Record Bore Path
7. After carving a few inches, press and hold multi-use button and rotate to full clockwise for maximum
rotation. When tool rotates freely, reduce rotation speed and stop at desired carve position. Release
multi-use button and resume carving.

IMPORTANT: If rotation is restricted, move carriage back slightly until full rotation is possible,
then move carriage forward while rotating.

8. Exit autocarve mode and continue normal drilling.

IMPORTANT: Autocarve settings are retained until machine is turned off.

Record Bore Path

Locate drill head every half-length of pipe. As job is completed, record actual data for each drill pipe. List
pitch and depth of each joint and a brief description of procedure. In addition, draw a simple sketch of
jobsite and record depth and rough location of pullback.

Subsite Electronics bore tracking software is also available for plotting and tracking bore path. This
software utilizes a Subsite Electronics tracking system, including tracker, display, tracking beacon, and
special software. The display can store jobs in its memory or the system can be run in the field using a
laptop computer. Contact your Ditch Witch dealer for more information.
Conduct a Bore - 116 JT/AT32 Operator’s Manual
Surface Drill Head

Surface Drill Head

Moving or thrown tools. Impact will cause death or
serious injury. Never use pipe wrenches on drill string. Follow procedure
in operator’s manual.

Rotating shaft. Crushing will cause death or serious

injury. Stay away.

To help avoid injury:

• Tracker operator and drill operator should maintain two-way communication.

• Drill operator should be instructed to discontinue drill string rotation as soon as drill bit exits the
bore. Use only thrust to extend drill string beyond exit hole.
• Keep everyone clear of the exposed drill string.
• Only enter pit when clear communication is given by the drill operator that the machine is shut
down. If using DrillLok mode, only enter pit when DrillLok mode is turned off and DrillLok indicator
is lit. See “DrillLok” on page 143.

1. Steer drill head to target pit or up through surface.

NOTICE: See “Recommended Bend Limits” on page 30.

2. Turn drilling fluid off as soon as drill head emerges.

3. If using DrillLok mode, allow tracker operator to remotely disable thrust/pullback and rotation.
Tracker operator must ensure DrillLok indicator is lit before changing downhole tools.

If not using DrillLok mode, turn off machine and keep key in tracker operator’s possession before
changing downhole tools.
4. Clean drill head.

IMPORTANT: Ensure threads remain clean.

5. Disconnect EZ-Connect joint or use Hydratong wrenches to remove drill head. See “Hydratong
Wrenches” on page 135.
JT/AT32 Operator’s Manual Conduct a Bore - 117
Backream

Backream
Moving or thrown tools. Impact will cause death or
serious injury. Never use pipe wrenches on drill string. Follow procedure
in operator’s manual.

Rotating shaft. Crushing will cause death or serious

injury. Stay away.

To help avoid injury:

• Ensure swivel turns freely with product attached.

• Tracker operator and drill operator should maintain two-way communication.
• Begin backream only when tracker operator has communicated that everyone is clear of the
exposed backream string or has enabled thrust and rotation hydraulics using DrillLok system.
• Never allow anyone to stand to the side of the exposed drill string. Drill string and backreamer can
move sideways suddenly if rotated while away from the exit hole.

Underground utilities. Contact can cause death or

serious injury. Locate and verify underground utilities before digging or
drilling.

To help avoid injury:

• Continue to use electric strike system during backreaming.

• Watch utility crossings. Consider size of backreamer and ensure there is adequate space between
existing utility and backreamer.

NOTICE: Number of passes needed depends on soil conditions. Do not attempt to increase hole size
too much in one pass. Several passes using successively larger reamers will be more successful.

If needed, enlarge pilot hole to accommodate larger product. Final hole should be 1.5 times larger than
the diameter of product being installed.
Conduct a Bore - 118 JT/AT32 Operator’s Manual
Backream

Assemble Backream String

1. Select backreamers. See “Backreamers” on page 130.
2. Install appropriate nozzles and determine drilling fluid flow requirements to provide sufficient fluid
flow. See page 137 and page 140 for more information.
3. Attach backreamer to beacon housing if tracking backream.
4. Install beacon. See beacon operator’s manual.
5. Install beacon housing lid.
6. Calibrate beacon and check operation. See beacon operator’s manual.
7. Attach transition sub to drill pipe string.
8. Attach backreamer assembly to transition sub.
9. Attach additional pullback devices or product to end of backreamer assembly.

Begin Backream
1. After backream assembly is attached to pipe, allow tracker operator to leave pit and stand away from
exposed drill string.
2. If using DrillLok mode, allow tracker operator to turn on tracker to enable thrust/pullback and
rotation.
If not using DrillLok mode, wait for tracker operator to communicate that backream string is clear.
3. Turn on drilling fluid until pipe fills and fluid pressure begins to rise.
4. Without rotating, slowly pull back until reamer contacts bore opening.
5. Begin slow rotation and pullback.
6. Increase drilling fluid flow and rotation as backream string enters ground.
7. Monitor gauges.
8. Locate backreamer with tracker at least every half-length of pipe.
JT/AT32 Operator’s Manual Conduct a Bore - 119
Remove Pipe

Remove Pipe
1. Enable automated pipe loader system (optional).
2. If pipe box row is full, select next empty row.
3. Position pipe joint between wrenches.
4. Clamp pipes with both wrenches. See “Clamp Pipe” on page 102.

Break Front Joint

1. Turn rear wrench counterclockwise.
2. Unclamp rear wrench and rotate clockwise to original position.
3. Retrieve pipe.

Manual Pipe Loader Controls Automated Pipe Loader Controls

3.1 Raise pipe lifters. Grippers will open as Resume. Shuttles will extend, grippers will
pipe is lifted. close fully and then relax, and pipe lifters will
lower.
3.2 Extend shuttles.
3.3 Relax grippers to allow pipe to rotate.
3.4 Lower pipe lifters.

4. Rotate spindle counterclockwise to separate pipe.

Break Rear Joint

1. Clamp rear wrench.
2. Rotate spindle counterclockwise one revolution to loosen joint at transition sub.

IMPORTANT: Do not fully unthread joint.

3. Unclamp rear wrench.

4. Move carriage back until front end of pipe is lined up with front end of pipe box.
5. Close grippers. If automated pipe loader mode is selected, press resume.
6. Rotate spindle counterclockwise until SaverLok body is separated from pipe.
Conduct a Bore - 120 JT/AT32 Operator’s Manual
Remove Pullback Device
7. Move carriage back until rear stop indicator lights.

Manual Pipe Loader Controls Automated Pipe Loader Controls

7.1 Fully close grippers. Resume. Shuttles will retract and pipe lifters
will raise pipe into pipe box.
7.2 Ensure pipe lifters are fully lowered.
7.3 Retract shuttle to current pipe row.
7.4 Raise pipe lifters to place pipe in current
row.
7.5 Open grippers.

8. Attach SaverLok body to next pipe.

8.1 Move carriage forward until SaverLok body touches pipe.
8.2 Rotate spindle clockwise. Carriage will slowly move forward as pipe is connected.
8.3 To fully tighten joint, slowly rotate pipe until spindle stops turning.
9. Unclamp front wrench to release pipe.

Remove Pullback Device

Moving or thrown tools. Impact will cause death or
serious injury. Never use pipe wrenches on drill string. Follow procedure
in operator’s manual.

Pullback device can be removed when last pipe is on drill frame.

IMPORTANT: Pullback device can also be removed when target pit along bore path has been reached.
Remaining pipe is then pulled back and removed.

1. Set engine to low throttle.

2. Turn drilling fluid off.
3. Shut off machine.
4. Clean pullback device.
5. Disconnect pullback material.
6. Remove pullback device using Hydratong wrenches. See “Hydratong Wrenches” on page 135.
JT/AT32 Operator’s Manual Systems and Equipment - 121

Systems and Equipment

Chapter Contents
For additional precautions, see “Safety Awareness” chapter.

IMPORTANT: For more information on how to operate controls, see page 45.

Anchor System . . . . . . . . . . . . . . . . . . . . . . . . . . 124

• Heavy Duty Anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
• Alternate Anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

• Engage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
• Adjust Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
• Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
• Disengage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
• Resume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . 129

• Electronic Controlled Engine Overview . . . . . . . . . . . . . . . . . . . . . . . . 129
• Machine Diagnostics System Overview . . . . . . . . . . . . . . . . . . . . . . . . 129
• Reading Engine Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Systems and Equipment - 122 JT/AT32 Operator’s Manual

Downhole Tools . . . . . . . . . . . . . . . . . . . . . . . . . 130

• Backreamers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
• Backreaming Fluid Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
• Beacon Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
• Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
• Hydratong Wrenches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
• Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Drill First Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

• Perform Regular Drill Pipe Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
• Use Drill Pipe Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Drilling Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

• Recommended Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
• Mixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
• Funnel Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

DrillLok System . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Electric Strike System . . . . . . . . . . . . . . . . . . . . . 144
• Assemble Voltage Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
• Test Strike System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
• Use ESID Test Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
JT/AT32 Operator’s Manual Systems and Equipment - 123

Pipe Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

• Add/Remove Single Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
• Correct Dropped Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
• Correct Misaligned or Jammed Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
• Remove/Install Pipe Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
• Rotate Drill Pipe Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
• Row Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Sensor Override . . . . . . . . . . . . . . . . . . . . . . . . . 152

Wireless Remote Control . . . . . . . . . . . . . . . . . . 153
• Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
• Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
• Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Wireline Operation . . . . . . . . . . . . . . . . . . . . . . . 156

Systems and Equipment - 124 JT/AT32 Operator’s Manual
Anchor System

Anchor System
This machine can be anchored using heavy duty anchoring, alternate anchoring, or a combination of both.

Rotating shaft. Crushing will cause death or serious

injury. Stay away.

To help avoid injury: Never replace anchor collar bolt with one longer than original. Clothing could
catch on turning shaft.

Underground utilities. Contact can cause death or serious

injury. Locate and verify underground utilities before digging or drilling.

To help avoid injury: If not driving anchors to full depth, drive optional
ground rod into soil away from machine and connect ground rod to machine. See “Alternate Anchors”
on page 126.

Horizontal movement. Crushing can cause death of

serious injury. Read and understand operator’s manual and all safety
instructions before use.

To help avoid injury:

• Set stabilizers prior to driving anchors.

• Drive anchors and/or tie off machine before drilling.
• Only swing cab after setup is complete.
• Remain a safe distance away if driving anchors with wireless remote control.
JT/AT32 Operator’s Manual Systems and Equipment - 125
Anchor System

Heavy Duty Anchors

Select
There are two anchor options for this machine. Choose the correct anchor type based on job conditions
as shown below.

Anchor Type Jobsite Conditions

Auger bit Hard soil, soft soil, soft rock
Rock bit Hard rock, soft rock, asphalt, concrete, cobble

Drive

IMPORTANT: Do not attempt to operate anchor controls while drilling fluid is on.

1. Install centering cap.

NOTICE: Centering cap must be

properly installed to prevent damage to
anchor.
1
3
Centering cap is properly installed when:
• Hardware (4) is secure but not over-
tightened.
• Centering cap (1) is free to slide back and
forth inside centering tube (2) under
normal load.
2
2. Use high speed rotation and low thrust to 4
drive anchor into the ground. j87om017w21.eps

IMPORTANT: Carefully time anchor rotation with anchor movement. Properly driven anchors
should not auger up soil.

3. Anchor is set when auger shaft flange (3) rests firmly on centering cap.
4. Repeat process for other anchor.

Remove
1. Use anchor controls to slowly remove anchor from ground.
2. Repeat process for other anchor.
Systems and Equipment - 126 JT/AT32 Operator’s Manual
Anchor System

Alternate Anchors
NOTICE:

• If using alternate anchors, additional grounding will need to be done using external kit 100-794.
Contact your Ditch Witch dealer for more information.
• Remove paint from all surfaces prior to installing grounding kit.
• Avoid drill string when using alternate anchors.
• Rigging must be able to withstand forces of up to 40,000 lb (178kN).

IMPORTANT: Remove paint from all surfaces prior to installing grounding kit.

Use alternate anchors in situations where anchors cannot be used or in combination with standard
anchors in situations where additional anchoring is needed. Contact a rigging specialist for assistance with
this process to ensure alternate anchors can withstand potential forces.

1. Use alternate anchoring (1) when

backreaming. Connect chain to pin and run
straight back from machine.

NOTICE: Ensure pin is secure before

attaching chain. 2

2. Use rings (2) located on front of anchor frame 1

to anchor machine when drilling out. Connect
a chain to each ring and run straight forward
from machine.

NOTICE: Looping chains through the

rings will cause damage to the frame. j59om072w.eps

3. Connect ground rod included in grounding kit

to drill frame as shown.

j59om121w.eps
JT/AT32 Operator’s Manual Systems and Equipment - 127
Cruise Control

Cruise Control
During the bore, thrust/pullback and rotation can be set to match ground conditions. Cruise control
enables the machine to maintain these settings hands-free. These settings can be engaged, disengaged,
overridden, and resumed at any time.

Engage
IMPORTANT: In order for cruise control to function, front wrench must be unclamped and shuttles
must be fully retracted.

1. Position joystick to desired thrust or pullback settings.

2. Position joystick to desired rotation setting (optional).
3. Press set. Cruise mode indicator will appear on display.
4. If using cruise control for thrust/pullback and rotation, release joystick. If not using cruise control for
rotation, use joystick to control rotation.

Adjust Settings
Thrust or Pullback
To increase thrust or pullback speed, move joystick to neutral position and press resume.

To decrease thrust or pullback speed, move joystick to neutral position and press set.

Rotation
To increase rotation speed, move joystick to left of center and press resume.

To decrease rotation speed, move joystick to left of center and press set.
Systems and Equipment - 128 JT/AT32 Operator’s Manual
Cruise Control

Override
To override thrust/pullback settings, move joystick out of neutral and beyond current setting. Machine
will increase to joystick setting.

To return to previous setting, release joystick.

Disengage
To disengage cruise control, move joystick out of neutral in opposite direction of carriage travel. Cruise
mode indicator on display will go off and carriage will stop moving.

Resume
Move joystick out of neutral in direction to be resumed (forward or backward) and press resume. Thrust
and rotation will resume at the previous settings and cruise mode indicator will appear on display.
JT/AT32 Operator’s Manual Systems and Equipment - 129
Diagnostic Codes

Diagnostic Codes
This machine is equipped with two diagnostic systems: engine and machine. The engine diagnostic
system detects errors within the engine operating system and communicates fault codes on the display.
The machine diagnostic system detects errors within the automated machine control system. These error
codes are also displayed on the upper display.

Use the display to hide/recall active codes. Note the SPN, FMI, and description of the diagnostic code for
future reference.

IMPORTANT: Do not shut off machine. Diagnostic codes are cleared each time machine is shut off.

Electronic Controlled Engine Overview

This machine is equipped with a self-diagnostic computer-controlled engine management system. An
Electronic Control Unit (ECU) monitors engine performance and makes adjustments to optimize that
performance.

Indicators, plus diagnostic codes and messages, on the display tell the operator about potential engine
problems. Depending on the severity of the problem, the ECU may reduce engine power or speed or may
shut the engine down. The ECU also stores all diagnostic codes regardless of severity.

Machine Diagnostic System Overview

Use the display to view condition of the machine automated diagnostic system. Under normal operating
conditions, any diagnostic code that is recorded will be shown as a pop-up message on the display.

Reading Engine Diagnostic Codes

Engine diagnostic codes are shown in pop-up messages on the display. Amber or yellow messages indicate
problems that should be addressed but do not need immediate attention. Red messages indicate
problems that need immediate attention. Failure to address a problem indicated by a red message will
generally result in the engine derating or shutting down.
Systems and Equipment - 130 JT/AT32 Operator’s Manual
Downhole Tools

Downhole Tools
Use the chart below when selecting downhole tools.

Soil Description
Sandy Sugar sand, blow sand, or other soils where sand is the predominant component
Soft Sandy loam
Medium Loams, loamy clays
Hard Packed clays, gumbo, all compacted soils
Cobble rock Chunk rock, glacial till, cobble, gravel
Soft rock Sandstone, shale, coral, caliche, chaulk
Medium rock Limestone, caliche, sandstone, shale
Hard rock Granite, schist, marble, hard limestone

Backreamers
A backreamer enlarges the hole as pipe is pulled back through the bore. No one backreamer works well in
all conditions. These charts are meant as a guideline only. Contact your Ditch Witch dealer for soil
conditions and backreamer recommendations for your area.

• 1 = best
• 2 = good
• 3 = fair
• 4 = not recommended

Backreamer Sandy Soft Medium Hard Rocky Soft Hard

Soil Soil Soil Soil Soil Rock Rock
Beavertail HD 2 1 1 1 4 4 4
Compact Fluted HD 3 3 1 2 2 3 4
EZ 3 1 2 2 3 3 4
Kodiak™ HD 3 3 3 2 1 2 3
Rockmaster® 4 4 4 4 3 1 1
Sandhog HD 1 1 2 3 3 4 4
Warthog™ HD 4 3 2 1 2 2 3
JT/AT32 Operator’s Manual Systems and Equipment - 131
Downhole Tools

Backreaming Fluid Requirements

Backreaming is only successful when enough fluid reaches the bore. The amount of fluid needed depends
on size of bore and soil condition.

Follow these steps to find the minimum amount of fluid needed in perfect conditions.

IMPORTANT: Using less than the recommended amount of fluid can cause bore to be dry and
unsuccessful.

Instructions Example
1. Find amount of fluid needed for your size of 6” (152mm) backreamer requires at least 1.47gal/
backreamer. See the following table. ft (18.24L/min)
2. Multiply this number by distance per minute 1.5gal (18L) x 2’/min (0.5m/min) = 3gal (9L) for
you plan to backream. The answer is an each minute of backreaming
estimate of amount of fluid you will need for
each minute of backreaming.
Systems and Equipment - 132 JT/AT32 Operator’s Manual
Downhole Tools

Backreamer/Product Gal/ft L/m Backreamer/Product Gal/ft L/m

Diameter Diameter
0.5” (13mm) 0.01 0.13 13.5” (343mm) 7.44 92.35
1” (25mm) 0.04 0.51 14” (356mm) 8.00 99.31
1.5” (38mm) 0.09 1.14 14.5” (368mm) 8.58 106.54
2” (51mm) 0.16 2.03 15” (381mm) 9.18 114.01
2.5” (64mm) 0.25 3.17 15.5” (394mm) 9.80 121.74
3” (76mm) 0.37 4.56 16” (406mm) 10.44 129.72
3.5” (89mm) 0.50 6.21 16.5” (419mm) 11.11 137.95
4” (102mm) 0.65 8.11 17” (432mm) 11.79 146.44
4.5” (114mm) 0.83 10.26 17.5” (445mm) 12.49 155.18
5” (127mm) 1.02 12.67 18” (457mm) 13.22 164.17
5.5” (140mm) 1.23 15.33 18.5” (470mm) 13.96 173.42
6” (152mm) 1.47 18.24 19” (483mm) 14.73 182.92
6.5” (165mm) 1.72 21.41 19.5” (495mm) 15.51 192.68
7” (178mm) 2.00 24.83 20” (508mm) 16.32 202.68
7.5” (191mm) 2.29 28.50 20.5” (521mm) 17.15 212.94
8” (203mm) 2.61 32.43 21” (533mm) 17.99 223.46
8.5” (216mm) 2.95 36.61 21.5” (546mm) 18.86 234.23
9” (229mm) 3.30 41.04 22” (559mm) 19.75 245.25
9.5” (241mm) 3.68 54.73 22.5” (572mm) 20.65 256.52
10” (254mm) 4.08 50.67 23” (584mm) 21.58 268.05
1.5” (267mm) 4.50 55.86 23.5” (597mm) 22.53 279.83
11” (279mm) 4.94 61.31 24” (610mm) 23.50 291.86
11.5” (292mm) 5.40 67.01 24.5” (622mm) 24.49 304.15
12” (305mm) 5.88 72.97 25” (635mm) 25.50 316.69
12.5” (318mm) 6.37 79.17 25.5” (648mm) 26.53 219.49
13” (330mm) 6.90 85.63 26” (660mm) 27.58 342.53
JT/AT32 Operator’s Manual Systems and Equipment - 133
Downhole Tools

Beacon Housings
Rockmaster Lid Installation

NOTICE: Lid bolts are one-time-use parts. Install 7 5 3 1

new bolts each time lid is installed.

1. Clean all threads, bolt holes, and mating

surfaces. 8 6 4 2
2. Following sequence shown, tighten bolts to j59om088w.eps
60-70ft-lb (81-95N•m).
3. Repeat tightening sequence.

Dirt Housing Lid Installation

1. Clean all threads, bolt holes, and mating
surfaces.
2. Use removable thread locker (Loctite® 242 or
equivalent).
3. Place lid on trough and install bolts (1).
4. Use punch holder (3) to drive roll pins (2) from
direction shown.
Systems and Equipment - 134 JT/AT32 Operator’s Manual
Downhole Tools

Bits
Selection
These charts are meant as a guideline only. No one bit works well in all conditions. Contact your Ditch
Witch dealer for soil conditions and bit recommendations for your area.

• 1 = best
• 2 = good
• 3 = fair
• 4 = not recommended

Bit Sandy Soft Medium Hard Rocky Soft Hard

Soil Soil Soil Soil Soil Rock Rock
Barracuda 2 1 1 2 3 4 4
Glacier 4 4 4 3 1 2 4
Hard Surface 3 1 2 3 4 4 4
Rhino 4 4 3 3 1 1 3
Rockmaster 4 4 3 2 1 1 1
Sand 1 2 3 4 4 4 4
Steep Taper 2 2 1 2 2 3 4
Steep Taper Tuff 2 2 1 1 2 1 4
Talon 3 3 2 1 1 2 4
Tornado 2 2 2 1 1 3 4
Tuff 3 2 1 1 3 1 4

Installation
Remove all paint and primer from mating surfaces before attaching any bit to housing. Install screws and
tighten bolts to 120ft-lb (163N•m).
JT/AT32 Operator’s Manual Systems and Equipment - 135
Downhole Tools

Hydratong Wrenches

Moving or thrown tools. Impact will cause death or

serious injury. Never use pipe wrenches on drill string. Follow procedure
in operator’s manual.

Thrown objects. Impact can cause death or serious injury.

Stay away.

To help avoid injury: Ensure only chain tongs

and chain are in contact with pipe (shown) and
that chain is correctly wrapped. Never use
Hydratong wrenches with chain bushing pin
touching pipe (shown).

j07om079h.eps

To attach or remove downhole tools, use Hydratong wrenches to join or break the joint.

1. Shut off machine.

2. To join, apply tool joint compound to threads and hand tighten joint.
3. Verify chain tong size if appropriate for pipe diameter. New chain tongs work with pipe diameter 4.5”
to 5” (11.43cm to 12.7cm). To accommodate 3 5/8” to 4 3/8” (9.2cm to 11.1cm) pipe, remove one
chain link.
Systems and Equipment - 136 JT/AT32 Operator’s Manual
Downhole Tools
4. Attach Hydratong in either the join or break position.

Join Break

IMPORTANT: Ensure arms are crossed before using wrenches.

4.1 Attach chain tongs (1) to both sides of joint. Place tongs as close to joint as possible.
4.2 Remove snapper pins (2) from slide pins (3), and insert slide pins into wrench handles (4).
4.3 Attach each end of hydraulic cylinder (5) to slide pins and insert snapper pins.
5. Remove all slack from wrench and joint.
6. To join, use the scribe line method to prepare joints for proper tightening. See “Scribe Line Method”
on page 137.
7. Connect Hydratong power pack to cylinder.
8. To tighten or loosen joint, move shuttle valve
handle (2) to A position on pump and press
power switch (1) to extend cylinder.
9. To reposition chain tongs and continue
tightening or loosening joint, move handle to
B position and then press power switch to
retract cylinder.
10. Monitor gauge (3) and refer to decal on pump
to achieve the approximate torque value.

IMPORTANT: Gauge gives an estimate

of torque. Use scribe line method to a48om001h.eps

verify proper make-up torque.

11. Move handle to center (neutral) position to relieve pressure.

12. Disconnect hoses and remove Hydratong components.
JT/AT32 Operator’s Manual Systems and Equipment - 137
Downhole Tools

Scribe Line Method

1. Scribe straight line across joint on both sides
of separating line (A).
2. To join, scribe second line (B) on movable side
A A
of joint in the opposite direction of tightening
action. Refer to table for correct dimension. B B

Connection Dimension
A A
Transition sub to Power Pipe 1/4” (6.4mm)
HD/DW-Forged HD
Transition sub to HDX 1/4” (6.4mm)
Transition sub to beacon 1/2” (12.7mm)
housing j07om071h.eps

Transition sub to AT Power 1/4” (6.4mm)

Pipe

Nozzles
Nozzles control fluid flow from the pipe to the bore. Select nozzles that will supply at least the amount of
fluid per minute needed for the flow and pressure you will be using. A nozzle that will supply more fluid
per minute is recommended. Contact your Ditch Witch dealer for nozzle recommendations.
Systems and Equipment - 138 JT/AT32 Operator’s Manual
Drill Pipe

Drill Pipe
Perform Regular Drill Pipe Care
Precondition New Pipe

NOTICE: Failure to follow this procedure could result in damaged or destroyed pipe.

IMPORTANT: Precondition new SaverLok body using this procedure.

Repeat this procedure three times for each piece of pipe before it is used the first time.

1. Hand lubricate entire surface of threads and shoulders of both ends of pipe with tool joint
compound. See “Recommended Lubricants” on page 166.
2. Join pipe and tighten joint.
3. Break joint.
4. Move pipe back to box.

Lubricate Joints before Each Use

Lubricate threads and shoulders of male joints with tool joint compound. This prevents rust and reduces
wear on shoulders and threads. See “Recommended Lubricants” on page 166.

Clean the Threads

NOTICE: Do not use gasoline or other petroleum-based solvents. This prevents tool joint compound
from sticking to the joints and will reduce thread life.

Clean the threads as needed with high-pressure water and detergent.

Replace Worn SaverLok Body

NOTICE: Failure to replace SaverLok body will result in damaged drill pipe.

Because each pipe comes in contact with the SaverLok body, check SaverLok body regularly for wear.
Compare condition of SaverLok body threads to condition of drill pipe threads. Replace SaverLok body any
time when its thread condition is not better than thread condition of drill pipe. See “SaverLok System” on
page 193.
JT/AT32 Operator’s Manual Systems and Equipment - 139
Drill Pipe

Use Drill Pipe Correctly

Align the Joints
Always carefully align the male and female ends
of pipe before threading them together.

NOTICE:

• Poor alignment can damage the threads

and destroy the usefulness of the joint.
• If joints get out of alignment during a bore,
use frame tilt or rear stabilizers to adjust.

Clamp Pipe Correctly

See “Clamp Pipe” on page 102.

Make Up and Break Out Joints Correctly

NOTICE:

• Always connect and disconnect joints slowly and deliberately.

• Do not ram pipes together during makeup or force them apart during breakout.

IMPORTANT: If assisted makeup is not functioning, machine will not thrust or rotate while carriage is
on front or rear home with front wrench clamped.

During pipe change operation when front wrench is clamped and carriage has reached front or rear home
indicator, assisted makeup automatically controls thrust to match speed and direction of rotation to
smoothly thread or unthread pipe sections.

• To connect pipes and fully tighten joint, slowly rotate pipe until spindle stops turning and full
pressure is developed. Carriage will move forward automatically as pipes thread together.
• To disconnect pipes, slowly rotate spindle counterclockwise. Carriage will move back
automatically as pipes separate.

Do Not Overwork Pipe

NOTICE: Bending pipe more sharply than recommended will damage pipe and cause failure.

Do not exceed the bend radius for pipe. See “Recommended Bend Limits” on page 30. Do not oversteer.
Systems and Equipment - 140 JT/AT32 Operator’s Manual
Drilling Fluid

Drilling Fluid
Chemicals. Improper handling or use can result in illness,
injury, or equipment damage. Follow instructions on labels and in Safety
Data Sheets (SDS).

Silica dust. Exposure can cause lung disease. Use

breathing protection.

To help avoid injury:

• Use water spray or other means to control dust.

• Follow US Occupational Safety and Health Administration (OSHA) or other applicable regulating
guidelines for appropriate breathing protection or dust control methods.

Recommended Products
For productive drilling and equipment protection, use these recommended products, available at your
Ditch Witch dealer.

Product Description
Bentonite Forms a thin cake on bore walls, lubricating the bore and keeping
it open and holding fluid
Premixed bentonite Contains premixed bentonite, polymer, and soda ash
Polymer Provides lubrication, increases viscosity in average soils and
heavy clay, and reduces swelling that traps pipe in the bore in
swelling clay
Wetting agent Water soluble cleaning solution
Soda ash Used to adjust pH of water and water hardness
JT/AT32 Operator’s Manual Systems and Equipment - 141
Drilling Fluid
Match drilling fluid to soil type. This chart is meant as a guideline only. Contact your Ditch Witch dealer or
drilling fluid representative for drilling fluid recommendations and soil conditions in your area, or use the
Fluid Formulator on www.ditchwitch.com.

Soil Type Drilling Fluid Recommendation

Smooth, flowing sand Bentonite or premixed bentonite + medium chain polymer
Coarse sand or light soil Bentonite or premixed bentonite
Heavy or swelling clay Long chain polymer + wetting agent
Rock Premixed bentonite

Mixtures
Bentonite does not mix well in water containing polymer. To use both, mix bentonite first, then add
polymer. When adding other products follow the order listed below.

IMPORTANT:

• If chemicals are added in the wrong order, they will not mix properly and will form clumps.
• If tank contains bentonite/polymer mix and more drilling fluid is needed, completely empty tank
and start with fresh water before mixing another batch.

1. Soda ash
2. Bentonite
3. Polymer
4. Wetting agent

Some things to remember when mixing bentonite:

• Use clean water free of salt, calcium, or excessive chlorine.

• Use water with pH level between 9 and 10.
• Use water with hardness of less than 120ppm.
• Do not use bentonite containing sand.
• Mix bentonite thoroughly or it will settle in tank.
• Do not mix bentonite to a funnel viscosity of over 50. See “Funnel Viscosity” on page 142.
Systems and Equipment - 142 JT/AT32 Operator’s Manual
Drilling Fluid

Funnel Viscosity
Viscosity is the measure of internal resistance of a fluid to
flow; the greater the resistance, the higher the viscosity.
Viscosity of drilling fluids must be controlled. Contact your
Ditch Witch dealer or drilling fluid representative for more
information.

To determine viscosity, you will need a Marsh funnel

(p/n 259-267) and a measuring cup, available from your
Ditch Witch dealer.

IMPORTANT: Make sure Marsh funnel is clean and free

of obstruction and that you have a stopwatch available
for timing the viscosity.

1. Using wash hose and a clean container, take a fresh sample of drilling fluid. The sample must be at
least 1.5qt (1.4L).
2. With finger over bottom of funnel, fill with fluid from the container through the screen until fluid
reaches the bottom of the screen.
3. Move funnel over 1qt (0.95L) container.
4. Remove finger from bottom of funnel and use the stopwatch to count the number of seconds it takes
for 1qt (0.95L) of fluid to pass through the funnel. The number of seconds is the viscosity.
5. Thoroughly rinse measuring cup and Marsh funnel.
JT/AT32 Operator’s Manual Systems and Equipment - 143
DrillLok

DrillLok
Rotating shaft. Crushing will cause death or serious
injury. Stay away.

To help avoid injury:

• Use DrillLok system every time downhole tools are changed or during other times when the drill
string is exposed.
• If not using a DrillLok system, turn off machine and keep key in tracker operator’s possession
before changing downhole tools.

IMPORTANT:

• See “DrillLok key” on page 82.

• This mode does not disable thrust and rotation immediately. Functions are disabled within 16
seconds.
• Tracker operator cannot disable thrust and rotation from tracker if DrillLok key is installed in
machine and turned to the deactivated position.

This mode allows the tracker operator to disable

hydraulic power to machine thrust and rotation.
DrillLok indicator (shown), located on front of
machine, will light when thrust and rotation have
been disabled by DrillLok system.

If operating with Subsite Electronics tracking

equipment, DrillLok system will be incorporated
into tracker. See tracker operator’s manual.

If operating without Subsite Electronics tracking

equipment, DrillLok system will be a separate
handheld device. See DrillLok operation sheet.

j87om018w21.eps
Systems and Equipment - 144 JT/AT32 Operator’s Manual
Electric Strike System

Electric Strike System

NOTICE: The strike system does not prevent electric strike or detect strikes before they occur. If alarms
are activated, a strike has already occurred and equipment is electrified.

Electric strike system must be properly set up, tested, and used any time jobsite is classified as electric.

See “Apply Precautions” on page 27. Review safety procedures before each job.

If an electric strike occurs, immediately contact your Ditch Witch dealer to have the electric strike system
tested.

Assemble Voltage Detector

1. Drive voltage stake into ground at least 6’ (2m) away
from any part of system.
2. Clip voltage limiter to voltage stake as shown.

Test Strike System

NOTICE: Do not drill until test is completed successfully.

1. Start engine.
2. Test alarms and strobe. See page 63.
3. View test results and historical data stored in the display. This data includes:
• ESID bar graph
• alphanumeric readout showing volts and amps
• current diagnostic codes, or diagnostic codes detected during previous tests
4. Use Electric Strike Simulator to test voltage and current sensors.
JT/AT32 Operator’s Manual Systems and Equipment - 145
Electric Strike System

Use ESID Test Tool

Electric shock. Contact will cause death or serious injury.

Read and understand operator’s manual. Know emergency procedures.

To help avoid injury:

• Never touch clips while test tool is operating.

• Never use test cables if probe or cable insulation is cracked or damaged.
• Ensure test tool, cables and hands are dry before operating.
• Ensure test tool is off when setting up test cables.
• Ensure cables are connected properly before testing.

Use the ESID test tool (shown) to test voltage and

current sensors on ESID. If readings are less than
indicated, contact your Ditch Witch dealer. See
test tool operation sheet for more information.

j87om043w21.eps
Systems and Equipment - 146 JT/AT32 Operator’s Manual
Pipe Loader

Pipe Loader
Add/Remove Single Pipe

Horizontal movement. Crushing can cause death or

serious injury. Read and understand operator’s manual and all safety
instructions before use.

To help avoid injury:

• Never attempt to move shuttles until everyone is at least 10’ (3m) away from machine.
• Ensure switch operator is standing clear of all moving parts while adding pipe.

Misuse of machine can cause death or serious injury.

Read and understand operator’s manual and all other safety instructions
before use. Know how to use all controls.

To help avoid injury:

• Use auxiliary pipe loading controls to add/remove single pipe. See “Auxiliary Pipe Loading” on
page 50.
• Open or close both auxiliary pipe loaders.
• Carriage must be in rear home position to load and unload pipe.
• Always use provided pipe guide.
• Drill pipe is heavy. Have enough people on hand to manually add or remove single pipe to pipe box.

Underground utilities. Contact can cause death or serious

injury. Locate and verify underground utilities before digging or drilling.

To help avoid injury:

• Never attempt to load and unload pipe while drilling or backreaming.

• On electrical jobsite, load and unload pipe only if loader is wearing electrically insulating boots and
gloves.
JT/AT32 Operator’s Manual Systems and Equipment - 147
Pipe Loader
Load a single pipe or up to a whole row of pipe into last row of pipe box to finish bore without changing
pipe boxes. Pipe can be added as soon as last row of pipe has been started and other rows are empty.
Unload added drill pipe with auxiliary pipe loaders once bore is finished. Pipe in last row of pipe box can
be unloaded only when other rows are empty.

1. Select last row.

2. Override drill operator control of shuttles and 1
pipe lifters.
3. Lower shuttle covers (2).
4. Lower pipe lifter covers (1).
5. Extend shuttles fully.

j59om109w.eps
6. Rotate auxiliary pipe loaders into position as
shown.

j59om110w.eps
7. Remove pipe guide (stored on shuttle drive
cover) and attach to front of pipe loader
frame as shown.

j59om111w.eps
Systems and Equipment - 148 JT/AT32 Operator’s Manual
Pipe Loader

Add Pipe Remove Pipe

7.1 Load single pipe in auxiliary pipe loader and 7.1 Raise pipe in last row.
rest against pipe guide.
7.1 Retract shuttles.
7.2 Move auxiliary pipe loaders under last row.
7.1 Lower pipe lifters.
7.3 Raise pipe lifters.
7.1 Extend shuttles.
7.4 Extend shuttles.
7.1 Remove pipe from auxiliary pipe loaders and
7.5 Repeat if more than one pipe is needed. store properly.
7.6 Lower pipe lifters. 7.1 Repeat if more than one pipe was added.

8. Close both auxiliary pipe loaders.

9. Remove pipe guide and store on shuttle drive cover.
10. Replace covers.
11. Enable drill operator controls of shuttles and pipe lifters.
12. Step away from machine.

Correct Dropped Pipe

To return a dropped pipe to the drill string, shut off machine and manually retrieve pipe. Return it to pipe
box by loading as a single piece of pipe. See “Add/Remove Single Pipe” on page 146.

Correct Misaligned or Jammed Pipe

NOTICE: If misaligned or jammed pipe cannot be corrected by removing bent pipe, contact your Ditch
Witch dealer for assistance.

A pop-up message on the display will indicate a misaligned or jammed pipe. Turn engine off and inspect
pipe in active row. If drill pipe is bent, remove from pipe box and discard.
JT/AT32 Operator’s Manual Systems and Equipment - 149
Pipe Loader

Remove/Install Pipe Box

Overhead electrical lines. Contact will cause death or

serious injury. Know location of lines. Stay away.

To help avoid injury: Follow US Occupational Safety and Health Administration (OSHA) guidelines for
working around overhead electrical lines.

Lifted load. Crushing can cause death or serious injury.

Stay away from lifted load and its range of movement.

To help avoid injury:

• Never attempt to remove/install pipe box while drilling or backreaming.

• Always walk around machine and check for obstructions before moving load.
• Use equipment capable of supporting the equipment’s size and weight. See “Specifications” on
page 203 or measure and weigh equipment before lifting.
• Never remove pins from ends of pipe box until lifting device is attached. Box may fall if pipe lift
switch is pressed without end pins in place.
• Lift only one box of pipe at a time.
• Never take your eyes off moving load. Always look in the direction load is moving.
• Never swing a load over people.

Prepare
1. Raise pipe lifters and remove pins (2) and
support bars (1) from pipe box storage
pockets.
2. Insert each support bar into opening and
retain with pin through tab.
3. Lower pipe lifters. 1

2
j59om0102w.eps
Systems and Equipment - 150 JT/AT32 Operator’s Manual
Pipe Loader
Remove Pipe Box

2
j59om101w.eps

1. Install lift block (3) and secure with lift block support bar and pins. Adjust to match drill frame angle.
2. Remove threaded caps (1) from pins.
3. Remove pins (2).
4. Move pipe box off of drill frame.

Install Pipe Box

NOTICE: Pipe box should only be installed onto pipe loader when shuttle is in first row position.

1. Move pipe box over front and rear locating pins and lower into position. Ensure pipe box is moved all
the way to the front.
2. Install threaded caps onto pins.
3. Install pins.
4. Raise pipe lifters.
5. Remove bottom support pins from both ends of pipe box. Store support pins in pipe box storage
pockets.
JT/AT32 Operator’s Manual Systems and Equipment - 151
Pipe Loader

Rotate Drill Pipe Order

Rotating the drill pipe is a manual process. Rotate
drill pipes in the drill string weekly. Rotate only as
many rows as used on the longest bore of the
week. For example, if the longest bore was 320’
(98 m), then only rotate four rows used.

Procedure
1. Remove pipe retainers from stowed position.
2. Raise pipe lifters until center of the bottom
row of pipe is centered in bottom slots in pipe 2
box. 1
j59om131w.eps
3. Insert pipe retainer (1) into bottom slot on
front and rear of pipe box on first row of pipe.
4. Secure pipe retainer with pin (2).
5. Adjust row stop to second row of pipe.
6. Operate drill until desired row(s) of pipe remain.
7. Set row stop to first row.
8. Raise pipe lifters to take weight off of pipe retainer.
9. Remove pipe retainer and secure in stowed position.
10. Operate drill until pipe box is empty.
11. Fill box using normal operating procedures.

Row Select
NOTICE:

• Do not raise pipe lifters with too many pipes in a row.

• Shuttle must be extended from under pipe box when row is selected.

Drilling
Change row when row is empty. If automated pipe loader is being used, display will indicate that it is time
to select a new row. Use row select buttons to select a new row.

Backreaming
Select next row when active row is full.
Systems and Equipment - 152 JT/AT32 Operator’s Manual
Sensor Override

Sensor Override
NOTICE: Some automated functions that can protect components from damage are NOT available in
sensor override. Use extreme caution when operating in sensor override.

IMPORTANT: Only qualified Ditch Witch service technicians can return machine to normal operation.

Automated functions of this machine are made possible by information collected from many sensors on
the machine. Sensor override permits limited operation without automated functions and standard
equipment protections when an issue is detected with one or more of the sensors. In sensor override, an
operator can complete a bore and move the machine away from the jobsite so that proper repairs can be
made at a Ditch Witch dealership.

If a sensor affected by the sensor override has an error and needs attention, a pop-up message will
appear on display. Each pop-up message will give the operator the option to override the error. The table
below details how automated functions are affected in sensor override.

Pop-Up Message With Override Without Override Cause

Automatic row stop Pipe loader Row stop will stay in Row select sensor reads out of
automation and current position range
automatic row
change disabled Row select motor pulling too
much or too little current

Row select sensor not

detecting movement when
row select should be moving
Cab slide sensor All operations Thrust, rotation, and Cab position is not read
function normally but inner rotation are correctly by controller
carriage may run into blocked by cab
cab if not extended
Carriage sensor High-speed carriage Carriage unable to CAN communications lost
control, pipe loader move and shuttles
automation, and unable to extend Sensor shows carriage is
distance drilled are from under pipe box beyond front or rear stop
disabled
Sensor does not detect
movements when carriage
should be moving
JT/AT32 Operator’s Manual Systems and Equipment - 153
Wireless Remote Control

Pop-Up Message With Override Without Override Cause

Float sensor Coordinated makeup Assisted makeup will CAN communications lost
will be performed not function
when overridden Float sensor is not read by the
with multi-use button controller
and automation
disabled Float sensor reading out of
range
Rotation sensor Cannot override Manual carve CAN communications lost
replaces autocarve
and automation is Sensor does not detect
disabled movement during rotation
Shuttle sensor Pipe loader Carriage unable to CAN communications lost
automation is move and shuttles
disabled unable to extend Sensor shows shuttle is
from under pipe box beyond spindle stop or last
row of pipe

Sensor does not detect

movement when shuttle
should be moving

Wireless Remote Control

Set-Up
1. Check wireless remote control battery status.
Replace batteries if needed. See “Battery,
Wireless Remote Control” on page 178.
2. Ensure USB key (shown) is installed. This key
is a lock-out feature to prevent unauthorized
use.
Systems and Equipment - 154 JT/AT32 Operator’s Manual
Wireless Remote Control

Operation
EMERGENCY STOP: Press engine stop on wireless remote or machine.

Remote-controlled equipment. Impact can cause death

or serious injury. Stay away.

To help avoid injury:

• Never drive while on machine.

• Keep machine in sight at all times when using wireless remote control.
• Keep a safe distance away from machine when operating wireless remote control.
• Ensure bystanders are not near the area where machine will be driven.
• Remove strap from around neck when using wireless remote control near moving parts.

NOTICE: Place wireless remote control in storage box after use. Take care not to store with neck strap
on top of switches.

IMPORTANT: Operator station must be empty to operate wireless ground drive control.

1. Turn on wireless remote control. Wireless remote control indicator will light.

IMPORTANT: Wireless remote control will shut down after one minute of inactivity. Move
power/start/horn switch up to restart.

2. Select mode.
3. Operate.
4. Turn wireless remote control off when job is complete.
JT/AT32 Operator’s Manual Systems and Equipment - 155
Wireless Remote Control

Pair
NOTICE: If machine does not respond as expected when using wireless ground drive, turn transmitter
off and use alternate ground drive controls.

If communication link indicator is flashing yellow, communication between wireless remote control and
machine has stopped. Move wireless remote control closer to machine while maintaining a safe distance.

If communication link indicator is red, communication has been lost. Shut down wireless remote control
and restart enable communication. If remote still will not work, contact your Ditch Witch dealer.

If battery and communication link indicators both display red for several seconds and then the wireless
control shuts off, USB key is not installed.

To pair:

1. Activate accessories.
2. Connect harness (shown) to transmitter (2).
3. Ensure battery indicator is solid green.

j50om054w.eps
4. Press pairing switch (1) until communication
link indicator begins to flash green/yellow and
then release the channel switch.
• Rapid flashing green indicator signals
successful channel connection.
• Flashing yellow indicator signals
unsuccessful channel connection.
Systems and Equipment - 156 JT/AT32 Operator’s Manual
Wireline Operation

Wireline Operation
Moving parts. Contact can cause serious injury. Stay
away.

To help avoid injury:

• Ensure thrust and rotation are disabled or in restricted mode while operation specialist is working
at the front and rear of machine.
• Never operate pipe box, pipe loading, anchor, setup controls, or any other controls while wireline
operation specialist is making wireline connections.
• Maintain constant two-way communication with wireline operation specialist.

Rotating shaft. Crushing will cause death or serious

injury. Stay away.

To help avoid injury: Never replace anchor collar bolt with one longer than original. Clothing could
catch on turning shaft.

IMPORTANT: This section is intended as an overview for the machine operator. During most bores, a
wireline operation specialist is responsible for making wireline connections. For specific information
about wireline operation, including system operation and safety precautions, consult your wireline
operation equipment vendor.

This machine can be modified to operate a wireline operation system by installing optional wireline kit.
Wireline operation uses a transmitter in the machine head that is hard wired through the drill string to an
offboard computer station at the rear of the machine. Each time pipe is added to the drill string, a new
section of wireline is inserted through the new pipe, gearbox, and water swivel, then spliced into the
JT/AT32 Operator’s Manual Systems and Equipment - 157
Wireline Operation
tracking system. The operator must be aware of the wireline operation specialist’s activity at the front
and rear of the machine. Contact your Ditch Witch dealer for more information.
1

2
j59om018w.eps

1. Operator awareness zone 2. Wireline

IMPORTANT: See “Wireline Restricted Operating Mode (ROM)” on page 84.

1. Connect drill head, transition sub, and wireline beacon housing.

2. Drill first pipe. After first pipe is downhole, clamp pipe in wrenches.
3. Position next pipe in shuttles.
4. The wireline operation specialist will:
4.1 Turn wireline restricted operating mode (ROM) on to slow thrust and rotation.
4.2 Insert a section of wireline through the pipe in the shuttles.
4.3 Splice one end of the new wire to the wireline in the clamped pipe.
4.4 Insert the other end (rear of machine) through the spindle, gearbox, and water swivel.
5. Use the pipe loading controls to move the new pipe into position and make up the joint.
6. The wireline operation specialist will:
6.1 Remove slack in wireline.
6.2 Secure wireline at the spindle.
6.3 Connect wireline to the offboard computer.
6.4 Turn the wireline ROM switch to the OFF position to enable unrestricted thrust and rotation.
7. Install next new section of pipe.
8. Continue process for duration of bore.
Systems and Equipment - 158 JT/AT32 Operator’s Manual
Wireline Operation
JT/AT32 Operator’s Manual Complete the Job - 159

Complete the Job

Chapter Contents
For additional precautions, see “Safety” and “Prepare” chapters.

Rinse Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 160

Stow Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 161
Store Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
• Store in Freezing Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
• Store Long-Term . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Decommission Machine . . . . . . . . . . . . . . . . . . . 162

Complete the Job - 160 JT/AT32 Operator’s Manual
Rinse Equipment

Rinse Equipment
Pressurized fluid or air. Contact can cause death or
serious injury. Refer to operator’s manual for correct use.

To help avoid injury:

• Never use high flow when using wash wand.

• Never point or aim wand at yourself or anyone else. Keep nozzle low to the ground.
• Prime drilling fluid pump before operating wash wand. Failure to prime drilling fluid pump will
cause flow fluctuations, which will make it difficult to control the wash wand.

NOTICE:

• Do not spray water onto operator console or electrical center in engine compartment. Water can
damage electrical components. Wipe down instead.
• Ensure all mud and debris is rinsed from tracks before parking machine overnight.

1. Turn fluid flow to low.

2. Connect wash wand at quick connect at rear
of machine.
3. Press wash wand switch to close discharge
valve.
4. Check surroundings before pressing handle to
start pressurized fluid flow.
5. Spray water onto equipment to remove dirt
and mud. Some pressure might be needed to
remove dried mud from wrench area.

IMPORTANT: If front wrench is

j59om082w.eps
clamped, fluid will not flow to the wash
wand.

6. Release handle to stop flow.

JT/AT32 Operator’s Manual Complete the Job - 161
Stow Equipment

Stow Equipment
Ensure all quick wrenches, bits, pullback devices, and other tools are loaded and properly secured on
trailer or truck.

Disconnect and store the following hoses and cables (if used):

• electric strike system voltage stake

• fluid hose

Store Machine
Before storing, ensure machine is rinsed, equipment is stowed, and all fluids are filled. For more
information on filling fluids, see Maintenance chapter or contact your Ditch Witch dealer.

Store in Freezing Conditions

To store machine overnight in freezing conditions, fill fluid lines with a polypropylene glycol-based, RV
antifreeze before shutdown.

Add Antifreeze
1. Add antifreeze to antifreeze tank. See
“Specifications” on page 203.
2. Install plug on suction side of drilling fluid
pump.
3. Open valve below antifreeze tank.
4. Install optional antifreeze reclaimer adapter
in spindle.
5. Ensure valve is open as shown.
6. Start machine and set to low throttle.
7. Enable drilling fluid control. j59om104w.eps

8. Slowly turn drilling fluid control until

antifreeze comes out of spindle.
9. Disable drilling fluid control.
Complete the Job - 162 JT/AT32 Operator’s Manual
Decommission Machine
Reclaim Antifreeze

IMPORTANT: Antifreeze can be removed from antifreeze tank and disposed of properly or it can be
reused until it is too diluted with drilling fluid to protect against freezing.

1. Hold hose on optional antifreeze reclaimer over top of antifreeze tank.

2. Open valve on reclaimer.
3. Connect drilling fluid transfer hose from tank to drilling fluid pump inlet.
4. Close valve below antifreeze tank.
5. Start engine.
6. Set throttle to low.
7. Enable drilling fluid control.
8. Set drilling fluid control to low.
9. Turn drilling fluid off when drilling fluid comes out of reclaimer hose.
10. Remove antifreeze reclaimer.

Store Long-Term
To store machine for periods of time exceeding two months:

• Ensure exposed parts are treated with anti-rust agent.

• Touch up paint as needed to prevent rusting.
• Lubricate machine and apply grease to unpainted surfaces.
• Cover exhaust pipe.

Decommission Machine
Before decommissioning machine, follow local regulations for disposing of hazardous substances. For
more information on draining fluids, see Maintenance chapter or contact your Ditch Witch dealer.
JT/AT32 Operator’s Manual Maintenance - 163

Maintenance
Chapter Contents
For additional precautions, see “Safety Awareness” and “Prepare” chapters.

Maintenance Precautions . . . . . . . . . . . . . . . . . 164

• Washing Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
• Welding Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
• Working under Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Recommended Lubricants . . . . . . . . . . . . . . . . . 166

• Engine Oil Temperature Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
• Approved Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
• Approved Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
• Diesel Exhaust Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
• Exhaust Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Drill Maintenance Interval Chart . . . . . . . . . . . . 171

Drill Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Downhole Tool Maintenance Interval Chart . . . 201
Downhole Tool Procedures . . . . . . . . . . . . . . . . 201
Maintenance - 164 JT/AT32 Operator’s Manual
Maintenance Precautions

Maintenance Precautions
Jobsite hazards. Exposure can cause death or serious
injury. Use correct equipment and work methods. Use and maintain
appropriate safety equipment.

To help avoid injury:

• Wear personal protective equipment including hard hat, safety eye wear, foot protection, hearing
protection, and gloves (except when near rotating equipment).
• Remove jewelry.
• Tie back long hair.
• Wear close-fitting, high visibility clothing.
• Have other personal protective equipment, such as insulated boots and gloves, breathing
protection, and face shield, etc. available for use depending on jobsite hazards or requirements.

Misuse of machine can cause death or serious injury.

Read and understand operator’s manual and all other safety instructions
before use. Know how to use all controls.

To help avoid injury:

• Unless otherwise instructed, all maintenance should be performed with the engine off and cool.
• Lower unsecured, raised components before servicing equipment.
• Unless otherwise instructed, all maintenance should be performed with machine parked on level
surface.
• Refer to US Occupational Safety and Health Administration (OSHA) guidelines for appropriate
lockout-tagout procedures.

Washing Precaution
NOTICE: Water can damage electronics. When cleaning equipment, do not spray electrical
components with water.
JT/AT32 Operator’s Manual Maintenance - 165
Maintenance Precautions

Welding Precaution
NOTICE: Welding can damage electronics.

• Welding currents can damage electronic components. Always disconnect the ECU ground
connection from the frame, harness connections to the ECU, and other electronic components
prior to welding on machine or attachments.
• Connect welder ground close to welding point and make sure no electronic components are in the
ground path.
• Failure to disconnect battery will cause damage to battery.

Working under Machine

1

j87om019w21.eps

Raised component. Crushing can cause death or serious

injury. Stay away or secure raised component with locking device. Use
correct equipment and procedures.

Before working under area of machine supported by stabilizer or frame tilt cylinder, ensure machine is
parked on hard surface.

Stabilizer
1. Remove cylinder locks from storage on back of frame (2) and place over extended cylinder rods
(shown) with curved ends toward stabilizer shoes.
2. Lower machine until load is supported by cylinder locks.

Frame Tilt Cylinder

1. Remove support from storage on frame (1) and place under drill frame (shown).
2. Lower drill frame until load is supported by drill frame support.
Maintenance - 166 JT/AT32 Operator’s Manual
Recommended Lubricants

Recommended Lubricants
Item Description
DEAC Diesel engine antifreeze/coolant meeting CES 14603

See “Approved Coolant” on page 167.

DEF Diesel exhaust fluid meeting ISO 22241-1 or DIN 70070

DEO Diesel engine oil meeting or exceeding Cummins® 20081, API CJ-4, ACEA E9. See “Engine
Oil Temperature Chart” on page 167.

API American Petroleum Institute, ACEA European Automobile Manufacturer’s Association

MPG Multipurpose grease, polyurea based NLGI GC-LB Grade 1.5 or lithium based NLGI GC-LB
Grade 2
MPL Multipurpose gear oil meeting API GL-5 (SAE80W90)

THF Tractor hydraulic fluid, Phillips 66® PowerTran XP Fluid or equivalent

TJC Tool joint compound, Ditch Witch standard or environmental

WRG Mulitpurpose extreme pressure water resistant grease, polyurea based NLGI GC-LB
Grade 2

Proper lubrication and maintenance protects Ditch Witch equipment from damage and failure.
Maintenance intervals listed are for minimum requirements. In extreme conditions, service machine
more frequently. Use only genuine Ditch Witch parts, filters, approved lubricants, TJC, and approved
coolants to maintain warranty. Fill to capacities listed in “Specifications” on page 203.

For more information on engine lubrication and maintenance, see the engine manual.
JT/AT32 Operator’s Manual Maintenance - 167
Recommended Lubricants

Engine Oil Temperature Chart

15W40
10W40
5W40
0W4
10W30
5W30
0W30
SAE30
SAE40

j59om132w.eps

Approved Coolant
NOTICE:

• Use only pre-diluted coolant or concentrated coolant mixed with distilled water. Do not use tap
water.
• Using water or high-silicate automotive-type coolant will lead to engine damage or premature
engine failure.
• Mixing heavy-duty diesel engine coolant and automotive-type coolants will lead to coolant
breakdown and engine damage.

This machine was filled with coolant meeting Cummins CES 14603 (blue in color) before shipment from
factory. Add or replace only with coolant meeting this specification, such as Fleetguard® ES Compleat™
coolant. This coolant is available, pre-diluted, from your Ditch Witch dealer as part number 255-1055.
Contact your Cummins service partner for a full list of approved coolants meeting CES 14603. In an
emergency, non-Cummins approved, heavy duty diesel engine coolant meeting ASTM D6210 may be
used. Change to CES 14603 coolant as soon as practical.
Maintenance - 168 JT/AT32 Operator’s Manual
Recommended Lubricants

Approved Fuel

Ultra Low Sulfur Diesel (ULSD) poses a greater static

ignition hazard than earlier diesel formulations with higher sulfur content.
Avoid death or serious injury from fire or explosion; consult with your fuel
or fuel system supplier to ensure the delivery system is in compliance
with fueling standards for proper grounding and bonding practices.

This engine is designed to run on diesel fuel. Use only high quality fuel meeting ASTM D975 No. 2D,
EN590, or equivalent. At temperatures below 32°F (0°C) winter fuel blends are acceptable. See the engine
manual for more information.

NOTICE: Use only Ultra Low Sulfur Diesel (less than 15ppm sulfur content in the US and Canada or
10mg/kg in EU and Japan) in this machine. Operating with higher sulfur content will damage the
engine and aftertreatment device.

Biodiesel blends up to 5% (B5) are approved for use in this machine. The fuel must meet the specifications
for diesel fuel shown above. In certain markets, higher blends may be used if certain steps are taken. Extra
attention is needed when using biodiesel, especially when operating in cold weather or storing fuel.
Contact your Ditch Witch dealer or the engine manufacturer for more information.
JT/AT32 Operator’s Manual Maintenance - 169
Recommended Lubricants

Diesel Exhaust Fluid (DEF)

Corrosive fluid. Contact can cause death or serious injury.

Avoid contact. Wear appropriate gloves. See Safety Data Sheet (SDS) for
more information.

To help avoid injury:

• If spill occurs, wipe clean immediately.

• If skin contact occurs, rinse with water immediately.
• If eye contact occurs, seek medical help immediately.
• If ingested, seek medical help immediately.

NOTICE: Shut off machine before adding DEF.

This engine requires diesel exhaust fluid (DEF) to meet emission regulations. Use only high quality DEF
meeting ISO 22241-1 or DIN 70070 requirements. Running this engine without DEF will increase exhaust
emissions and cause engine to derate. Do not dilute or contaminate DEF or substitute other fluids.
Tampering with the DEF system will increase exhaust emissions and cause the engine to derate.

DEF has other common names such as Urea, AUS 32, AdBlue, NOx Reduction Agent, and Catalyst Solution.

DEF freezes at 11.3°F (-11.5°C) but the system is designed to prevent freezing during normal operation. If
DEF freezes in the tank when the engine is shut down, the system will quickly thaw DEF when engine is
started.

DEF has a limited shelf life. In ideal conditions, maximum expected shelf life is about 18 months. At
temperatures higher than 90°F (32°C), DEF will degrade more rapidly. Do not store in direct sunlight.

Storage and transfer equipment must be compatible with DEF. Most materials (especially hoses) are not
compatible and will degrade and contaminate DEF. Do not use contaminated DEF. Containers made of
polyethylene or polypropylene are recommended.

This machine will consume DEF at a rate of 10% of diesel consumption. Many factors affect consumption
rate, but a good rule of thumb is to fill the DEF tank every other time the diesel tank is filled.
Maintenance - 170 JT/AT32 Operator’s Manual
Recommended Lubricants

Exhaust Cleaning
This engine has a Selective Catalytic Reduction (SCR) system that uses a small amount of DEF to convert
NOx emissions in the exhaust into nitrogen and water. The SCR system cleans itself automatically, unless it
is manually disabled by the operator.

Automatic exhaust cleaning happens during normal machine operation when sensors in the
engine determine the need. During an engine exhaust cleaning cycle, engine exhaust can reach
high temperatures. When this happens, the high exhaust temperature icon will light.

If the jobsite is in an area where high exhaust temperature might cause a problem, disable exhaust
cleaning for the duration of the job and return to automatic cleaning when the job is finished. The
exhaust cleaning disabled icon will light and remain on until the system is returned to automatic
cleaning mode.

The exhaust cleaning icon will light when the system is disabled and exhaust cleaning cycle is
needed.

• The icon will light when an automatic cleaning is needed. If the area will allow it, return the machine
to automatic cleaning mode and let it run automatically.
• The icon will flash when a manual cleaning is needed. Set the engine to low throttle with no load and
initiate the manual exhaust cleaning cycle. The light will continue to flash until the manual exhaust
cleaning cycle is finished (approximately 30 minutes).
• A manual exhaust cleaning cycle is required after automatic exhaust cleaning has been disabled
multiple times. If manual cleaning is not done when indicated, the engine will derate.
JT/AT32 Operator’s Manual Maintenance - 171
Drill Maintenance Interval Chart

Drill Maintenance Interval Chart

IMPORTANT: Chart indicates first instance of repeated maintenance procedures. See detailed
information below.

Adjust, service, or test Change, initial Lube, initial

Check Change Lube

1000 Hours

2000 Hours

4500 Hours

As Needed
250 Hours

500 Hours
10 Hours

50 Hours
Startup
Service

Accumulator, hydraulic

Air intake system (LRC only)

Battery

Battery, wireless remote control

Coolant

Crankcase breather tube (HRC only)

Drilling fluid y-strainer

Dust ejector valve

Engine compartment

Engine drive belt

Filter, air

Filter, crankcase breather

Filter, DEF pump

Filter, DEF tank

Filter, engine oil (see Oil, engine)

Filter, fuel

Filter, hydraulic
Maintenance - 172 JT/AT32 Operator’s Manual
Drill Maintenance Interval Chart

1000 Hours

2000 Hours

4500 Hours

As Needed
250 Hours

500 Hours
10 Hours

50 Hours
Startup
Service

Fluid, hydraulic

Fluid pump

Hydraulic hoses

Hydraulic tank

Inner water swivel (AT only)

Oil, anchor gearbox

Oil, engine

Oil, fluid pump

Oil, ground drive gearbox

Oil, rotation gearbox

Pipe auto-lubricator

Pipe guide inserts

Pipe loader inserts

Radiator

Radiator cap

SaverLok system

SaverLok inner drive collar (AT only)

Slide cartridge wear pads

Thrust rollers

Tool joint compound

Track support slide pads

Track tension

Water separator
JT/AT32 Operator’s Manual Maintenance - 173
Drill Maintenance Interval Chart

1000 Hours

2000 Hours

4500 Hours

As Needed
250 Hours

500 Hours
10 Hours

50 Hours
Startup
Service

Wrench jaw inserts

Maintenance - 174 JT/AT32 Operator’s Manual
Drill Procedures

Drill Procedures
Hydraulic Accumulator
Change accumulator (shown) every 1000 hours.

j87om001w23.eps

Air Intake System

Check piping (shown) every 250 hours. Ensure
there are no cracked hoses, loose clamps, or
punctures. Tighten or replace parts as needed.

j87om020w21.eps
JT/AT32 Operator’s Manual Maintenance - 175
Drill Procedures

Battery

Corrosive fluid. Contact can cause death or serious injury.

Avoid contact. Wear appropriate gloves. See Safety Data Sheet (SDS) for
more information.

To help avoid injury:

• Never attempt to charge a battery that is leaking, bulging, heavily corroded, frozen, or otherwise
damaged.
• Refer to Safety Data Sheet (SDS) for additional information regarding battery.

Explosive hydrogen gas. Fire or explosion can cause death

or serious injury. Keep heat flames, sparks, and other sources of ignition
away.

To help avoid injury:

• Use a single 12V maximum source for charging. Never connect to rapid chargers or dual batteries.
• Never lean over battery when making connections.
• Never allow vehicles to touch when charging.
• Never short-circuit battery terminals for any reason or strike battery posts or cable terminals.
• Refer to Safety Data Sheet (SDS) for additional information regarding battery.

NOTICE:

• Electronic components can be easily damaged by electrical surges. Jump starting can damage
electronics and electrical systems, and is not recommended. Try to charge the battery instead. Use
quality large diameter jumper cables capable of carrying high currents (400 amps or more). Low
quality cables may not allow enough current flow to charge a dead/discharged battery.
• Read all steps thoroughly and review illustration before performing procedure.

Check every 10 hours. Charge as needed.

Maintenance - 176 JT/AT32 Operator’s Manual
Drill Procedures
Check
1. Disconnect battery at battery disconnect
switch, if equipped.
2. Ensure no ignition sources are near battery.
3. Loosen and remove battery cable clamps
carefully, negative (-) cable first.
4. Clean cable clamps and terminals to remove
dull glaze.
5. Check for signs of internal corrosion in cables.
6. Connect battery cable clamps, positive (+)
cable first.
j59om041w.eps
7. Tighten any loose connections.
8. Ensure that battery tiedowns are secure.
9. Turn battery disconnect, if equipped, on.
JT/AT32 Operator’s Manual Maintenance - 177
Drill Procedures

Charge
1. Park service vehicle close to disabled machine
but do not allow vehicles to touch.
2. Set parking brake in both vehicles.
3. Turn ignition switch off in both vehicles and
turn off all electrical loads.
4. Disconnect machine controller, if equipped.
5. Inspect battery in disabled machine (B) for
signs of cracking, bulging, leaking, or other
damage.
6. Connect red positive (+) jumper cable clamp
to positive (+) post of battery (2) in disabled
machine.

IMPORTANT: Some machines may

have a positive jumper cable terminal
(1) located externally. If so equipped,
connect red positive (+) jumper cable
clamp to terminal.

7. Connect the other red positive (+) jumper

cable clamp to positive (+) post of battery (A)
in service vehicle.
8. Connect black negative (-) cable clamp to
negative (-) post of battery in service vehicle.
9. Connect the other black negative (-) cable
clamp to engine or frame ground on disabled vehicle (1), at least 12” (305 mm) from failed battery, as
shown.
10. Operate service vehicle engine at 1500-2000 rpm for a few minutes to build an electrical charge in
failed battery.
11. Stop engine in service vehicle.
12. Remove jumper cables from service vehicle, black negative (-) clamp first. Do not allow clamps to
touch.
13. Remove black negative (-) cable clamp from disabled engine or frame ground.
14. Remove red positive (+) cable clamp from disabled machine.
15. Reconnect machine controller.
16. Start disabled machine.
Maintenance - 178 JT/AT32 Operator’s Manual
Drill Procedures

Battery, Wireless Remote

Control
Change batteries when low battery indicator is
displayed. Install six AA batteries as shown.

Coolant
IMPORTANT: See “Approved Coolant” on page 167.

Check every 10 hours. Change every two years or 2000 hours.

Check 2
1. Check level at sight glass (1) of expansion 1
tank.
2. Add DEAC at fill (2) as needed to keep level at
halfway point on sight glass.

Change
1. Remove fill cap (2).
2. Remove plug (1) to drain.
3. Install plug.
4. Add DEAC at fill at a rate of 3gpm (11.4L/min)
to keep level at halfway point on sight glass. j59om023w.eps

5. Start engine.
6. Run engine at 195°F (90°C) for several minutes.
7. Shut off machine and let cool.
8. Check coolant level.
9. Add DEAC at fill as needed to keep level at halfway point on sight glass.
JT/AT32 Operator’s Manual Maintenance - 179
Drill Procedures

Crankcase Breather Tube

Check tube (shown) before startup and every 10
hours. Ensure breather tube is free of
obstructions and operates properly. Clean as
needed.

j87om021w21.eps

Drilling Fluid Y-Strainer

Check y-strainer before startup and every 10
hours. Ensure y-strainer is free of obstructions
and operates properly. Clean as needed.

j59om027w.eps

Dust Ejector Valve

Check valve (shown) before startup and every 10
hours. Ensure valve is not inverted, damaged,
plugged, or cracked.

j87om022w21.eps
Maintenance - 180 JT/AT32 Operator’s Manual
Drill Procedures

Engine Compartment
NOTICE:

• Check more often if operating in large

brush or grassy conditions.
• Do not use water or compressed air to
remove debris.

Check engine compartment (shown) for debris

every 50 hours and after long-term storage.
Manually clean out debris as needed.
j59om125w.eps

Engine Drive Belt

Check every 10 hours. Change every 1000 hours.

Check
Check belt (shown) for cracks and wear. If
damaged, change belt.

Change
3
1. Remove tension at pulley (1).
2. Remove belt (2).
3. Inspect engine belt tensioner (3) for damage
j59om053w.eps
and debris. Replace if needed.
4. Install new belt.
JT/AT32 Operator’s Manual Maintenance - 181
Drill Procedures

Filter, Air
NOTICE:

• Only open air filter canister when air restriction is indicated.

• Change elements. Do not attempt to clean them.
• Cleaning with compressed air or water can damage filter elements.
• Tapping filter elements to loosen dirt can damage filter elements.

Change as indicated by display (HRC) or as

indicated by air intake restriction indicator (LRC).
1
1. Remove cover.
2. Remove primary filter element (1) and
secondary filter element (2).
3. Wipe inside of housing and wash cover.
4. Install new filter elements.
3
5. Install cover and secure.
6. Reset air intake restriction indicator (3, LRC
only). 2
j87om023w21.eps

Filter, Crankcase Breather

Change every 2000 hours.

1. Disconnect crankcase ventilation hose (1).

2. Turn housing cover (2) counterclockwise.
3. Remove filter element (3).
4. Install new filter element.
5. Install cover and turn clockwise.
6. Install crankcase ventilation hose.
Maintenance - 182 JT/AT32 Operator’s Manual
Drill Procedures

Filter, DEF Pump

Change every three years or 4500 hours.
3
1. Remove DEF filter cap (1) and inspect threads
for damage. Replace if needed.
2. Remove DEF filter equalizing element (2).
3. Remove DEF filter dosing unit filter element 2
(3) using disposable service tool (4). 1

IMPORTANT: Disposable service tool is 4

included with filter.
j59om098w.eps

• Use color of plastic on filter to

determine which end of tool to
use.
• Tool clicks into place when inserted
correctly.

4. Slide DEF filter equalizing element into DEF filter dosing element.
5. Insert filter element assembly into DEF pump.
6. Install cap and torque to 177in-lb (20N•m).

Filter, DEF Tank

Change every 1000 hours.

1. Remove multifunction head unit from DEF

tank.
2. Remove retention screw and discard.
3. Pull filter (shown) off suction tube and
discard.
4. Position new filter suction tube housing onto
bottom of suction tube and press flush
against bottom of heater tube fin. Ensure
filter retention screw aligns with retention j87om024w21.eps
screw housing.
5. Reassemble.
JT/AT32 Operator’s Manual Maintenance - 183
Drill Procedures

Filter, Fuel
Change filters (shown) every 500 hours.

j87om025w21.eps

Filter, Hydraulic
NOTICE:

• Change filter more often as indicated by

filter indicator.
• If hydraulic system must be opened for
repair, install new hydraulic filter. If new
filter becomes plugged in fewer than 20
hours, replace.

Change filters at 50 hours and every 500 hours

thereafter.
j59om029w.eps

Fluid Pump
2 1
Check ball valve (1) for leaks every 10 hours.
Tighten stem packing as needed.

Check piston seals (2) for signs of excessive

leaking before startup and every 10 hours.
Replace as needed.

j59om103w.eps
Maintenance - 184 JT/AT32 Operator’s Manual
Drill Procedures

Fluid, Hydraulic
1
IMPORTANT: Replace hydraulic filter each time
hydraulic system is opened.

Check before startup and every 10 hours. Change 2

every 500 hours.

Check
1. Check level at sight glass (2).
2. Add THF at fill (1) as needed to keep level at
halfway point on sight glass. 3
Change
j59om042w.eps

1. Remove plug (3) to drain.

2. Replace plug.
3. Add THF at fill as needed to keep level at halfway point on sight glass.
JT/AT32 Operator’s Manual Maintenance - 185
Drill Procedures

Hydraulic Hoses
Pressurized fluid or air. Injection can cause death or
serious injury. Refer to operator’s manual for correct use.

To help avoid injury:

• Use a piece of cardboard or wood, rather than hands, to check for leaks.
• Before disconnecting a hydraulic line, turn engine off and operate all controls to relieve pressure.
• Lower, block, or support any raised component with a hoist.
• Cover connection with heavy cloth and loosen connector nut slightly to relieve residual pressure.
Catch all fluid in a container.
• Before using system, check that all connections are tight and all lines are undamaged.
• If you are injured, seek immediate medical attention from a doctor familiar with this type of injury.

Check for leaks where shown before startup and

every 10 hours.

Hydraulic Tank
Check every 50 hours. Drain water from tank
every 50 hours.

1. Turn plug (shown) slightly until water comes

out.
2. Tighten plug.

j59om035w.eps
Maintenance - 186 JT/AT32 Operator’s Manual
Drill Procedures

Inner Water Swivel 6 7

5
Check
4
Shine flashlight into spindle and check condition
every 50 hours. Change as needed.

Change
1. Remove SaverLok (5). See “SaverLok System” 3
on page 193.
2. Remove hex stub (4). 1
3. Remove spring (6). 2
4. Remove SaverLok connection (3). j87om026w21.eps

5. Remove small and large seal bodies (2).

6. Remove seal spacer (7).
7. Inspect set screw (1). Replace if needed.

IMPORTANT: Thread new set screw fully into different hole using Loctite 242 or equivalent.

8. Install seal spacer.

9. Replace seal bodies.

IMPORTANT:

• Do not allow grease to touch inner seals during installation.

• Lightly coat seals with SAE30 engine oil.
• Ensure small seal body is aligned with set screw.

10. Install SaverLok connection.

IMPORTANT: Ensure openings in seal spacer align with ports on SaverLok connection.

11. Install spring.

12. Install hex stub.
13. Install SaverLok. See “SaverLok System” on page 193.
JT/AT32 Operator’s Manual Maintenance - 187
Drill Procedures

Oil, Anchor Gearbox

Check every 50 hours. Change every 1000 hours.

Check
1. Check level at fill plug (2).
2. Add MPL at fill as needed to keep level at top
of sightglass.

Change
1. Remove plug (1) to drain.
2. Install plug. j59om043w.eps

3. Add MPL at fill plug (2) to keep level at top of

sightglass.

Oil, Engine 4
Check before startup and every 10 hours. Change 2
every 500 hours.

Check 1
1. Check level at dipstick (1).
2. Add DEO at fill (2) as needed to keep level at 3
highest line on dipstick.

Change
1. Remove plug (3) to drain.
2. Install plug. j87om027w21.eps

3. Change filter (4).

4. Add DEO at fill (2) to keep level at highest line on dipstick.
5. Start engine.
6. Run engine until operating temperature is reached.
7. Shut off machine.
8. Check level.
9. Add DEO at fill as needed to keep level at highest line on dipstick.
Maintenance - 188 JT/AT32 Operator’s Manual
Drill Procedures

Oil, Fluid Pump

2
Check before startup and every 10 hours. Change
at 50 hours and every 2000 hours thereafter. 1

Check 3
1. Check level at sight glass (1).
2. Add MPL at fill (2) as needed to keep level at
halfway point on sight glass.

Change
1. Remove plug (3) to drain.
2. Ensure plug is free of dirt and debris. j59om092w.eps

3. Install plug.
4. Add MPL at fill plug (2) to keep level at halfway point on sight glass.

Oil, Ground Drive Gearbox

IMPORTANT:

• Use helper to assist in positioning gearbox

plugs for checking and adding oil.
• Do not fill more than halfway.

Check every 50 hours. Change every 1000 hours.

Check
1. Rotate gearbox until plug (shown) is level
with center of track. j59om030w.eps

2. Remove plug.
3. Add MPL at fill as needed to keep level visible.
4. Repeat for each gearbox.

Change
1. Rotate gearbox until plug (shown) is level with bottom of track.
2. Remove plug to drain.
3. Rotate gearbox until plug is level with center of track.
4. Add MPL at fill to keep level visible.
5. Install plug.
6. Repeat for each gearbox.
JT/AT32 Operator’s Manual Maintenance - 189
Drill Procedures

Oil, Rotation Gearbox

Check every 50 hours. Change at 500 hours and
every 1000 hours thereafter. 1
2
Check
1. Check level at sight tube (2). 3
2. Add MPL at fill (1) as needed to keep level at
halfway point on sight tube.

Change
1. Remove plug (3) to drain.
2. Install plug. j87om028w21.eps

3. Add MPL at fill to keep level at halfway point on sight tube.

Maintenance - 190 JT/AT32 Operator’s Manual
Drill Procedures

Pipe Auto-Lubricator
Check before startup and every 10 hours. Clean
as needed.

Check
Ensure that nozzle is free of obstructions and
operates properly.

Clean
1. Rotate handle upward to the clean position
(A).
2. Operate pump until obstruction is flushed. j59om025w.eps

NOTICE: If neoprene washer is dislodged while cleaning, entire nozzle must be replaced.

3. Rotate handle down to the spray position (B).

4. Clean nozzle guard. If necessary, pull handle/nozzle insert out of housing to clean with fine wire or
solvent.
JT/AT32 Operator’s Manual Maintenance - 191
Drill Procedures

Pipe Guide Inserts

3
IMPORTANT: Inserts can be rotated for longer
wear.
2
Check before startup and every 50 hours. Change
as needed. 6
Check 7
Check for wear. 1
Change 4 5
j59om051w.eps
To replace front pipe guide inserts:

1. Remove lynch pins (5).

2. Remove pins (6) and open pipe guide (7).
3. Remove guide inserts.
4. Replace in reverse order.

To replace rear pipe guide inserts:

1. Remove pin (1) to remove pin (2).

2. Slide plate (3) up to remove guide inserts (4).
3. Replace in reverse order.

Pipe Loader Inserts

IMPORTANT:

• Gripper inserts can be flipped over for

longer wear.
• Ensure bolts are tightened evenly to enable
inserts to slide freely and wear evenly.

Check where shown for wear every 250 hours.

Change as needed.

j59om099w.eps
Maintenance - 192 JT/AT32 Operator’s Manual
Drill Procedures

Radiator
NOTICE: Radiator may need to be cleaned
more frequently in dusty or grassy conditions.

Check every 50 hours. Clean as needed.

Check
Check radiator (shown) for dirt, grass, and other
debris.

Clean
1. Clean fins with compressed air or spray wash. j59om028w.eps

NOTICE: Cleaning with high pressure air or water can damage fins.

2. Open rear hood and spray through radiator toward engine.

3. If grease and oil are present on radiator, spray with solvent and allow to soak overnight.

Radiator Cap

Hot parts. Contact can cause burns. Only touch when cool
or wear gloves.

To help avoid injury: Wait for machine to cool before inspecting radiator cap.

Inspect radiator cap (shown) every 500 hours.

Ensure rubber seal is not damaged. Replace as
needed.

j59om093w.eps
JT/AT32 Operator’s Manual Maintenance - 193
Drill Procedures

SaverLok System
Check every 50 hours. Change as needed.

Check
1. Start engine.
2. Position carriage so that collar can be
clamped in rear wrenches.
3. Clamp wrenches on collar and tighten
SaverLok assembly until outer rotation
pressure gauge reads 4500-5000psi (310-
345bar) in low speed setting.
j59om118w.eps

Change
1
To remove:

1. Start engine. 2
2. Ensure front wrench is clear of all pipe and
tooling. 3
3. Clamp front wrench.

NOTICE: Clamping front wrench on

large diameter of collar or SaverLok
nose will damage threads.

j87om041w21.eps
4. Position carriage so collar (3) can be clamped
into rear wrench.
5. Clamp rear wrench on collar.
6. Rotate spindle counterclockwise to unthread collar.
7. Remove collar. Set aside.
8. Remove body (2) from connection (1).
• If parts are clean and dry, pull body free from connection.
• If parts are not clean and dry, reposition carriage to clamp body in rear wrench and move
carriage back to pull body free from connection.
9. Shut off machine.
Maintenance - 194 JT/AT32 Operator’s Manual
Drill Procedures
To install:

1. Inspect connection for damage.

2. Apply TJC to threads, body, and collar.
3. Insert body into connection.
4. Thread body into connection until o-ring is fully engaged using one of the following methods:
• Slide collar over body and engage threads by hand.
• Tap nose with rubber mallet until o-ring is fully engaged.
5. Position body by hand for proper engagement of pins and grooves.
6. Slide collar over body and hand-tighten (typically three to four turns).
7. Start engine.
8. Position carriage so collar can be clamped in rear wrenches.
9. Clamp wrench on collar and tighten assembly in low speed setting until outer rotation pressure
gauge reads 4500-5000psi (310-345bar).

IMPORTANT: Machine may not build enough torque to break out body unless both wrenches
are clamped.

10. Immediately loosen collar and repeat process five times to break in the contact surfaces.
11. Tighten assembly until outer rotation pressure gauge reads between 4500-5000psi (310-345bar).

NOTICE: Clamping front wrench on large diameter of collar or SaverLok nose will damage
threads.

12. Turn engine off.

JT/AT32 Operator’s Manual Maintenance - 195
Drill Procedures

SaverLok Inner Drive Collar

Check every 50 hours. Change as needed. 4

Check
Shine flashlight into spindle and check condition
of hex stub (4). Change as needed.
3
Change
1. Remove SaverLok (5) from connection. See
“SaverLok System” on page 193.
5
2. Remove hex stub (4).
j87om029w21.eps
3. Remove spring (3) from drive shaft.
4. Inspect hex stub. Replace if needed.
5. Inspect spring. Replace if needed.
6. Install SaverLok. See “SaverLok System” on page 193.

Slide Cartridge Wear Pads

IMPORTANT: Slide cartridge wear pads only
need to be checked if a roller has recently been
replaced.

Check pads (shown) when a roller is replaced.

Replace as needed.

j87om030w21.eps
Maintenance - 196 JT/AT32 Operator’s Manual
Drill Procedures

Thrust Rollers
Check rollers at each end of carriage (shown)
every 50 hours. Ensure rollers turn freely. Replace
as needed.

j87om031w21.eps
JT/AT32 Operator’s Manual Maintenance - 197
Drill Procedures

Tool Joint Compound

NOTICE: Use only genuine Ditch Witch TJC to
maintain warranty.

Check before startup and every 10 hours. Change

as needed.

Bellows-Style

Check 1
Check TJC level. 2
j79om078h19.eps

Change
1. Unlatch rubber latches (1).
2. Turn canister 1/8 turn counterclockwise and lift off base.
3. Position new canister over base and turn 1/8 turn clockwise to align with latches.
4. Fasten rubber latches. If TJC does not spray out, turn priming knob (2).

Pail-Style
3
Check 1
Check TJC level.

Change
1. Remove TJC pail (1). 2
2. Lift pump and lid assembly (2) up guide pole
and secure on shoulder bolt (3).
4
3. Remove follower plate (4) from existing pail.
4. Install follower plate into new pail.
j59om050w.eps

5. Press firmly onto follower plate until TJC

comes up in center opening.
6. Remove pump and lid assembly from shoulder bolt and lower into pail, guiding pump into center hole
of follower plate.
7. Secure TJC pail to pump.
8. Remove cap from discharge tee on pump.
9. Operate pump until discharged TJC is free of air pockets.
10. Replace cap.
Maintenance - 198 JT/AT32 Operator’s Manual
Drill Procedures

Track Support Slide Pads

Check every 250 hours. Change as needed.

j87om032w21.eps
JT/AT32 Operator’s Manual Maintenance - 199
Drill Procedures

Track Tension

Contents under pressure. Impact can cause death or

serious injury. Relieve pressure before opening.

To help avoid injury:

• Service track grease cylinder only while standing away from zerk.
• Cover connection with heavy cloth when relieving pressure in cylinder.

Check before startup and every 50 hours. Adjust

as needed.
1 2
Check
1. Lift track.
2. Place straightedge across front track span
from idler to sprocket as shown.
3. Measure distance from top edge of bottom of
track to straightedge (A). Distance should be
0.75” (19.05mm).
A
Adjust
j87om033w21.eps

NOTICE: Use provided pressure gauge.

1. Remove cover (1).

2. Adjust tension.
• To tighten, pump MPG into fitting (2) so pressure is 2500psi (172.3bar).
• To loosen, use socket wrench to remove zerk and plug and drain all grease. Then follow
tightening procedure above.
3. Drive straight forward one machine length and check tension.
Maintenance - 200 JT/AT32 Operator’s Manual
Drill Procedures

Water Separator
Check water separator (shown) located on fuel
filter before startup and every 10 hours. Drain
water as needed until fuel runs from drain.

j59om021w.eps

Wrench Jaw Inserts

Check inserts (shown) before each use. Change as
needed.

Check
Check for wear before each use.

Change
1. With wrenches open, remove bolt (1) and
washer (2).
2. Remove inserts (3).
3. Install new inserts.
JT/AT32 Operator’s Manual Maintenance - 201
Downhole Tool Maintenance Interval Chart

Downhole Tool Maintenance Interval Chart

IMPORTANT: Chart indicates first instance of repeated maintenance procedures. See detailed
information below.

Adjust, service, or test Change, initial Lube, initial

Check Change Lube

Each Use

75 Hours
Service

Rockmaster tool

Downhole Tool Procedures

Lube Rockmaster Tool 2
Lube before each use. 3
4
1. Remove plugs (2,4) from tool body and install
zerk (3).
2. Inject WRG into zerk.
1
3. Continue pumping until new, clean grease
seeps into open front port.
4. Replace plug.
5. Inject 1-5 pumps WRG into zerk.
6. Remove zerk and reinstall rear plug. j59om070w.eps

Rebuild Rockmaster Tool

Rebuild tool every 75 hours as measured by inner rotation hourmeter. Contact your Ditch Witch dealer
for replacement parts.
Maintenance - 202 JT/AT32 Operator’s Manual
Downhole Tool Procedures
JT/AT32 Operator’s Manual Specifications - 203

Specifications
Specifications are called out according to SAE recommended practices. Specifications are general and
subject to change without notice. If exact measurements are required, equipment should be weighed
and measured. Due to selected options, delivered equipment may not match that shown.

Chapter Contents
JT/AT32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
EU Declaration of Conformity . . . . . . . . . . . . . . 209
UK Declaration of Conformity. . . . . . . . . . . . . . . 210
Specifications - 204 JT/AT32 Operator’s Manual
JT/AT32

JT/AT32

W L
j87om034w21.eps

Dimensions US Metric
L Overall machine length
Driving* 256.5in 6.52m
Transport* 254.0in 6.45m
W Overall machine width
w/cab 89.3in 2.27m
w/open station 89.3in 2.27m
w/cab extended 105in 2.67m
H Overall machine height
Driving* 123.5in 3.14m
Transport* 97in 2.46m
Transport with cab* 97in 2.46m
Operating mass
JT base unit, no pipe* 18,410lb 8351kg
AT base unit, no pipe* 18,530lb 8405kg
Add cab option, heat and air* 690lb 313kg
Maximum entry angle* 9-20° 9-20°
Angle of approach
Without cab 21° 21°
With cab 21° 21°
JT/AT32 Operator’s Manual Specifications - 205
JT/AT32

Dimensions US Metric
Angle of departure 18.5° 18.5°
Ground bearing pressure
JT pipe, w/cab** 11.76psi 0.83kg/cm2
JT pipe, w/open station** 11.44psi 0.80kg/cm2
AT pipe, w/cab** 11.62psi 0.82kg/cm2
AT pipe, w/open station** 11.29psi 0.79kg/cm2
Ground clearance** 5.7in 144.8mm

Power Pipe HD US Metric

Length, nominal* 118.1in 3.00m
Joint diameter* 2.75in 70mm
Tubing diameter* 2.38in 60mm
Minimum bend radius* 123ft 37.5m
Weight, lined* 84lb 38.1kg
Weight, lined with large box (60 pipe) 5860lb 2658kg
Weight, lined with small box (25 pipe) 2799lb 1270kg

DW-Forged HD Pipe US Metric

Length, nominal* 118.1in 3.00m
Joint diameter* 2.75in 70mm
Tubing diameter* 2.38in 60mm
Minimum bend radius* 123ft 37.5m
Weight, lined* 76lb 34.5kg
Weight, lined with large box (60 pipe) 5380lb 2440kg
Weight, lined with small box (25 pipe) 2599lb 1179kg
Specifications - 206 JT/AT32 Operator’s Manual
JT/AT32

HDX Pipe US Metric

Length, nominal* 120in 3.05m
Joint diameter* 2.63in 66.8mm
Tubing diameter* 2.50in 63.5mm
Minimum bend radius* 130ft 39.6m
Weight, lined* 74lb 33.6kg
Weight, lined with large box (60 pipe) 5260lb 2386kg
Weight, lined with small box (25 pipe) 2549lb 1156kg
All Terrain Pipe US Metric
Length, nominal* 120in 3.05m
Joint diameter* 3.00in 76.2mm
Tubing diameter* 2.50in 63.5mm
Minimum bend radius* 130ft 39.6m
Weight, with inner rod* 108lb 49.0kg
Weight, with large box (45 pipe) 5430lb 2463kg
Weight, with small box (20 pipe) 2740lb 1243kg

Operation US Metric
Maximum spindle speed* 220rpm 220rpm
Maximum spindle speed (AT inner spindle)* 280rpm 280rpm
Maximum spindle torque 4200ft•lb 5694N•m
Maximum spindle torque (AT inner spindle) 1200ft•lb 1627N•m
Carriage thrust travel speed* 190fpm 58m/min
Carriage thrust travel speed* 190fpm 58m/min
Thrust force* 32,000lb 142kN
Thrust force (AT mode)* 32,000lb 142kN
Pullback force* 32,000lb 142kN
Bore diameter 5.50-6.50in 140-165mm
Bore diameter, AT 4.75-5.50in 121-140mm
JT/AT32 Operator’s Manual Specifications - 207
JT/AT32

Operation US Metric
Backreamer diameter soil dependent
Ground travel speed, forward* 2.8mph 4.6km/h
Ground travel speed, reverse* 2.8mph 4.6km/h

Engine US Metric
Engine: Cummins 4.5 (HRC: EPA Tier 4, EU Stage V; LRC: EU Stage II)
Fuel Diesel
Cooling medium Liquid
Injection Direct
Aspiration Turbocharged and charge air
cooler
Cylinders 4
Displacement 275in3 4.5L
Bore 4.21in 107mm
Stroke 4.88in 124mm
Manufacturer’s gross power rating (per SAE J1995) 155hp 115kW
Estimated net power rating (per SAE J1349) 148hp 110kW
Rated speed 2200rpm 2200rpm
Peak torque @1200rpm 525ft-lb 712N•m

Drilling Fluid System (Onboard) US Metric

Maximum drilling fluid pressure* 1000psi 69bar
Maximum drilling fluid flow* 70gpm 265L/min
Specifications - 208 JT/AT32 Operator’s Manual
JT/AT32

Fluid Capacities US Metric

Hydraulic reservoir 17gal 64L
Fuel tank 54gal 204L
Engine oil, including filter 14qt 13.2L
Cooling system 24qt 22.7L
Antifreeze tank 8gal 30L
Diesel exhaust fluid tank (HRC only) 8.6gal 32.6L
Fluid pump 6.2qt 5.9L

Battery (2 used)
SAE reserve capacity 195min, 12V, negative ground, SAE cold crank @ 0°F (-18°C), 950amps.

Environmental US Metric
Regulation (EU) 517/2014: Fluorinated Greenhouse Gases (w/cab only)
Type: HFC-134a
Global Warming Potential Factor (GWP): 1430
Capacity 3lb 1.36kg
CO2 equivalent 4299lb 1.95t

Noise Level
This machine can generate sound levels exceeding 80dBA. Always wear appropriate hearing protection
when operating machine. Find sound power and pressure information at www.ditchwitch.com, or
contact customersupport@ditchwitch.com.

Vibration Levels
Average vibration transmitted to the operator’s hand during normal operation does not exceed 2.5m/
sec2. Average vibration transmitted to the whole body during normal operation does not exceed 0.5m/
sec2.

*Per SAE J2022

**Per ISO 16754
JT/AT32 Operator’s Manual Specifications - 209
EU Declaration of Conformity

EU Declaration of Conformity
The Charles Machine Works Inc., PO Box 66, 1959 West Fir Avenue, Perry, Oklahoma, USA, declares that the following unit(s):

Model Serial Number Description

XXXXX XXXXXXXXXXXXXXXXX Horizontal Directional Drill

Conform(s) to the following directives:

2006/42/EC (Machinery Directive), 2014/30/EU (Electromagnetic Compatibility Directive), and

2000/14/EC (Noise Emission Directive)

Each model listed has been evaluated with the following standards and/or other normative documents:

EN 16228-1:2014
EN 16228-3:2014
EN ISO 13766-1:2018

Data for 2000/14/EC Noise Emission Directive:

Model Classification Measured Sound Guaranteed Sound Engine Speed Engine Power
Power (dBA) Power (dBA) (rpm) (kW)
XXXXX Horizontal XXX XXX XXXX XXX
Directional Drill

Determined in accordance with ISO 6395:2008.

Conformity Assessment: Annex V

Data for Regulation (EU) No 517/2014 on Fluorinated Greenhouse Gases (if equipped with cab):

Model HFC kg GWP CO2 Equivalent (metric tonnes)

XXXXX 134A XXXX 1430 XXXX

The Technical Construction File is maintained at the manufacturer’s location.

This declaration has been issued under the sole responsibility of the manufacturer.
The object of the declaration is in conformity with relevant Union harmonization legislation.

Certified: Authorized Representative:

Marcel Dutrieux
Manager European Product Integrity
Toro Europe NV
Nijverheidsstraat 5
2260 Oevel
Belgium

Engineering Director
1959 West Fir Avenue
Perry, OK 73077, USA

Date _______________
Specifications - 210 JT/AT32 Operator’s Manual
UK Declaration of Conformity

UK Declaration of Conformity
The Charles Machine Works Inc., PO Box 66, 1959 West Fir Avenue, Perry, Oklahoma, USA, declares that the following unit(s):

Model Serial Number Description

XXXXX XXXXXXXXXXXXXXXXX Horizontal Directional Drill

Conform(s) to the following UK national laws:

S.I. 2001 No.1701 (Noise), S.I. 2008 No.1597 (Machinery Safety), and S.I. 2016 No.1091 (EMC).

Each model listed has been evaluated with the following standards and/or other normative documents:

EN 16228-1:2014
EN 16228-3:2014
EN ISO 13766-1:2018

Data for Noise Regulation (S.I. 2001 No. 1701)

Model Classification Measured Sound Guaranteed Sound Engine Speed Engine Power
Power (dBA) Power (dBA) (rpm) (kW)
XXXXX Horizontal XXX XXX XXXX XXX
Directional Drill

Determined in accordance with ISO 6395:2008.

Conformity Assessment: Schedule 8

Data for S.I. 2019 No. 583 (Fluorinated Greenhouse Gases) (if equipped with cab):

Model HFC kg GWP CO2 Equivalent (metric tonnes)

XXXXX 134A XXXX 1430 XXXX

The Technical Construction File is maintained at the manufacturer’s location.

This declaration has been issued under the sole responsibility of the manufacturer.
The object of the declaration is in conformity with relevant UK legislation.

Certified: Authorized Representative:

Marcel Dutrieux
Manager European Product Integrity
Toro U.K. Limited
Spellbrook Lane West
Bishop’s Stortford
CM23 4BU
United Kingdom

Engineering Director
1959 West Fir Avenue
Perry, OK 73077, USA

Date _________________
JT/AT32 Operator’s Manual Specifications - 211
UK Declaration of Conformity
Specifications - 212 JT/AT32 Operator’s Manual
UK Declaration of Conformity
JT/AT32 Operator’s Manual Support - 213
Registration

Support
Registration
If your equipment was purchased through a Ditch Witch dealer, it is already registered. If you purchased
from any other source, please email productsupportwarrantyadmin@ditchwitch.com or fill out the
registration card located in the back of the parts manual. Registration enables you to receive updates on
this equipment as well as information on new products of interest.

Procedure
Notify your dealer immediately of any malfunction or failure of Ditch Witch equipment.

Always give model, serial number, and approximate date of your equipment purchase. This information
should be recorded and placed on file by the owner at the time of purchase.

Return damaged parts to dealer for inspection and warranty consideration if in warranty time frame.

Order genuine Ditch Witch replacement or repair parts from your authorized Ditch Witch dealer. Use of
another manufacturer’s parts may void warranty consideration.

Resources
Publications
Contact your Ditch Witch dealer for publications and videos covering safety, operation, maintenance, and
repair of your equipment.

Ditch Witch Training

For information about on-site individualized training, contact your Ditch Witch dealer.
Warranty - 214 JT/AT32 Operator’s Manual
Resources

Warranty
Ditch Witch Equipment and Replacement Parts
Limited Warranty Policy
Subject to the limitation and exclusions herein, free replacement parts will be provided at any authorized Ditch Witch dealership
for any Ditch Witch equipment or parts manufactured by the Ditch Witch factory that fail due to a defect in material or
workmanship within one (1) year of first commercial use. Free labor will be provided at any authorized Ditch Witch dealership for
installation of parts under this warranty during the first year following “initial commercial” use of the serial-numbered Ditch
Witch equipment on which it is installed. The customer is responsible for transporting their equipment to an authorized Ditch
Witch dealership for all warranty work.

Exclusions from Product Warranty

• All incidental or consequential damages.
• All defects, damages, or injuries caused by misuse (including, but not limited to, rollover), abuse, improper installation,
alteration, neglect, or uses other than those for which products were intended.
• All defects, damages, or injuries caused by improper training, operation, or servicing of products in a manner inconsistent
with manufacturer’s recommendations.
• All engines and engine accessories (these are covered by original manufacturer’s warranty).
• Tires, belts, and other parts which may be subject to another manufacturer’s warranty (such warranty will be available to
purchaser).
• ALL IMPLIED WARRANTIES NOT EXPRESSLY STATED HEREIN, INCLUDING ANY WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE AND MERCHANTABILITY.

IF THE PRODUCTS ARE PURCHASED FOR COMMERCIAL PURPOSES, AS DEFINED BY THE UNIFORM COMMERCIAL CODE, THEN
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE HEREOF AND THERE ARE NO IMPLIED WARRANTIES OF ANY
KIND WHICH EXTEND TO A COMMERCIAL BUYER. ALL OTHER PROVISIONS OF THIS LIMITED WARRANTY APPLY INCLUDING THE
DUTIES IMPOSED.

Ditch Witch products have been tested to deliver acceptable performance in most conditions. This does not imply they will
deliver acceptable performance in all conditions. Therefore, to assure suitability, products should be operated under anticipated
working conditions prior to purchase.

Defects will be determined by an inspection within thirty (30) days of the date of failure of the product or part by Ditch Witch
Product Support (DWPS) or its authorized dealer. DWPS will provide the location of its inspection facilities or its nearest
authorized dealer upon inquiry. DWPS reserves the right to supply remanufactured replacements parts under this warranty as it
deems appropriate.

Extended warranties are available upon request from your local Ditch Witch dealer or the Ditch Witch factory.

Some states do not allow exclusion or limitation of incidental or consequential damages, so above limitation of exclusion may not
apply. Further, some states do not allow exclusion of or limitation of how long an implied warranty lasts, so the above limitation
may not apply. This limited warranty gives product owner specific legal rights and the product owner may also have other rights
which vary from state to state.

For information regarding this limited warranty, contact the DWPS department, P.O. Box 66, Perry, OK 73077-0066, or contact
your local dealer.

First version: 1/91; Latest version: 7/19