Owner’s Manual & Safety Instructions

Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 17l

Visit our website at: http://www.harborfreight.com

Email our technical support at: productsupport@harborfreight.com

When unpacking, make sure that the product is intact

and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2017 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in Read this material before using this product.
any shape or form without the express written consent of Harbor Freight Tools. Failure to do so can result in serious injury.
Diagrams within this manual may not be drawn proportionally. Due to continuing SAVE THIS MANUAL.
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
 Table of contents
Important Safety Information ...................... 2 Maintenance and Servicing ....................... 11
Specifications ............................................. 8 Parts List and Diagram .............................. 14
Setup - Before Use: .................................... 8 Warranty .................................................... 16
Operating Instructions ................................ 9
SAFETy

WARNING SyMBOLS AND DEFINITIONS

This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
SETUp

Indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Addresses practices not related to personal injury.

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IMpORTANT SAFETy INFORMATION

General power Tool Safety Warnings

Read all safety warnings and instructions.

Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term ″power tool″ in the warnings refers to your mains-operated (corded) power tool.

Work area safety

MAINTENANcE

1. Keep work area clean and well lit. 3. Keep children and bystanders
Cluttered or dark areas invite accidents. away while operating a power tool.
Distractions can cause you to lose control.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or fumes.

Page 2 For technical questions, please call 1-888-866-5797. Item 64288

Electrical safety

SAFETy
1. power tool plugs must match the outlet. 4. Do not abuse the cord. Never use the cord
Never modify the plug in any way. for carrying, pulling or unplugging the
Do not use any adapter plugs with grounded power tool. Keep cord away from heat, oil,
power tools. Unmodified plugs and matching sharp edges or moving parts. Damaged or
outlets will reduce risk of electric shock. entangled cords increase the risk of electric shock.

2. Avoid body contact with grounded surfaces 5. When operating a power tool outdoors,
such as pipes, radiators, ranges and use an extension cord suitable for
refrigerators. There is an increased risk of outdoor use. Use of a cord suitable for outdoor
electric shock if your body is grounded. use reduces the risk of electric shock.

3. Do not expose power tools to rain or wet 6. If operating a power tool in a damp location
conditions. Water entering a power tool is unavoidable, use a Ground Fault circuit
will increase the risk of electric shock. Interrupter (GFcI) protected supply.

SETUp
Use of a GFCI reduces the risk of electric shock.

personal safety
1. Stay alert, watch what you are doing 5. Do not overreach. Keep proper footing and
and use common sense when operating balance at all times. This enables better control
a power tool. Do not use a power of the power tool in unexpected situations.
tool while you are tired or under the
6. Dress properly. Do not wear loose clothing or

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influence of drugs, alcohol or medication.
A moment of inattention while operating power jewelry. Keep your hair, clothing and gloves
tools may result in serious personal injury. away from moving parts. Loose clothes, jewelry
or long hair can be caught in moving parts.
2. Use personal protective equipment.
Always wear eye protection. Safety equipment 7. If devices are provided for the connection of
such as dust mask, non-skid safety shoes, dust extraction and collection facilities, ensure
hard hat, or hearing protection used for appropriate these are connected and properly used. Use of
conditions will reduce personal injuries. these devices can reduce dust-related hazards.

3. prevent unintentional starting. Ensure the switch 8. Only use safety equipment that has been
is in the off-position before connecting to approved by an appropriate standards agency.
power source, picking up or carrying the tool. Unapproved safety equipment may not provide
Carrying power tools with your finger on adequate protection. Eye protection must be
the switch or energizing power tools that ANSI-approved and breathing protection
have the switch on invites accidents. must be NIOSH-approved for the
specific hazards in the work area.
MAINTENANcE

4. Remove any adjusting key or wrench

before turning the power tool on.
A wrench or a key left attached to a rotating part
of the power tool may result in personal injury.

Item 64288 For technical questions, please call 1-888-866-5797. Page 3

 power tool use and care
1. Do not force the power tool. Use the 5. Maintain power tools. check for misalignment
correct power tool for your application. or binding of moving parts, breakage of parts
The correct power tool will do the job better and and any other condition that may affect the
safer at the rate for which it was designed. power tool’s operation. If damaged, have the
SAFETy

power tool repaired before use. Many accidents

2. Do not use the power tool if the are caused by poorly maintained power tools.
switch does not turn it on and off.
Any power tool that cannot be controlled with 6. Keep cutting tools sharp and clean. Properly
the switch is dangerous and must be repaired. maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
3. Disconnect the plug from the power source
before making any adjustments, changing 7. Use the power tool, accessories and tool bits
accessories, or storing power tools. etc. in accordance with these instructions,
Such preventive safety measures reduce the taking into account the working conditions
risk of starting the power tool accidentally. and the work to be performed. Use of the
power tool for operations different from those
4. Store idle power tools out of the reach of intended could result in a hazardous situation.
children and do not allow persons unfamiliar
with the power tool or these instructions
to operate the power tool. Power tools are
SETUp

dangerous in the hands of untrained users.

Service
Have your power tool serviced by a
qualified repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.

Rotary Hammer Safety Warnings

1. Wear ear protectors with rotary hammers. 8. Do not lay the tool down until it has come to
Exposure to noise can cause hearing loss. a complete stop. Moving parts can grab the
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surface and pull the tool out of your control.

2. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury. 9. When using a handheld power tool,
maintain a firm grip on the tool with
3. Hold power tools by insulated gripping surfaces both hands to resist starting torque.
when performing an operation where the cutting
tool may contact hidden wiring or its own cord. 10. Do not leave the tool unattended when it is
Contact with a ″live″ wire will make exposed metal plugged into an electrical outlet. Turn off the tool,
parts of the tool ″live″ and shock the operator. and unplug it from its electrical outlet before leaving.

4. Let bit cool before touching, changing 11. This product is not a toy.
or adjusting it. Bits heat up dramatically Keep it out of reach of children.
while in use, and can burn you.
12. people with pacemakers should consult their
5. If the drill bit jams, release the physician(s) before use. Electromagnetic fields
trigger immediately; drill torque in close proximity to heart pacemaker could cause
can cause injury or break bit. pacemaker interference or pacemaker failure. In
MAINTENANcE

addition, people with pacemakers should:

6. Maintain labels and nameplates on the tool. • Avoid operating alone.
These carry important safety information. • Do not use with power switch locked on.
If unreadable or missing, contact • Properly maintain and inspect to avoid
Harbor Freight Tools for a replacement. electrical shock.
• Any power cord must be properly
7. Avoid unintentional starting.
grounded. Ground Fault Circuit Interrupter
Prepare to begin work before turning on the tool.
(GFCI) should also be implemented –
it prevents sustained electrical shock.

Page 4 For technical questions, please call 1-888-866-5797. Item 64288

Rotary Hammer Safety Warnings (cont.)
13. The warnings, precautions, and instructions
discussed in this instruction manual cannot
cover all possible conditions and situations
that may occur. It must be understood by the

SAFETy
operator that common sense and caution are
factors which cannot be built into this product,
but must be supplied by the operator.

Vibration Safety
This tool vibrates during use. 2. Do not smoke during use. Nicotine reduces
Repeated or long-term exposure to vibration may the blood supply to the hands and fingers,
cause temporary or permanent physical injury, increasing the risk of vibration-related injury.
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury: 3. Wear suitable gloves to reduce the
vibration effects on the user.
1. Anyone using vibrating tools regularly or for
an extended period should first be examined 4. Use tools with the lowest vibration
by a doctor and then have regular medical when there is a choice.

SETUp
check-ups to ensure medical problems
5. Include vibration-free periods each day of work.
are not being caused or worsened from
use. Pregnant women or people who have 6. Grip tool as lightly as possible
impaired blood circulation to the hand, past hand (while still keeping safe control
injuries, nervous system disorders, diabetes, of it). Let the tool do the work.
or Raynaud’s Disease should not use this tool.
If you feel any symptoms related to vibration (such 7. To reduce vibration, maintain the tool as
as tingling, numbness, and white or blue fingers), explained in this manual. If any abnormal
seek medical advice as soon as possible. vibration occurs, stop use immediately.

SAVE THESE INSTRUcTIONS.

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MAINTENANcE

Item 64288 For technical questions, please call 1-888-866-5797. Page 5

 Grounding

TO pREVENT ELEcTRIc SHOcK AND DEATH FROM INcORREcT GROUNDING

WIRE cONNEcTION:
SAFETy

check with a qualified electrician if you are in doubt as to whether the outlet is properly
grounded. Do not modify the power cord plug provided with the tool. Never remove the
grounding prong from the plug. Do not use the tool if the power cord or plug is damaged. If damaged, have
it repaired by a service facility before use. If the plug will not fit the outlet, have a proper outlet installed by
a qualified electrician.

Grounded Tools: Tools with Three prong plugs

2. The grounding prong in the plug is connected
through the green wire inside the cord to the
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grounding system in the tool. The green wire

in the cord must be the only wire connected
to the tool’s grounding system and must
never be attached to an electrically “live”
terminal. (See 3-prong plug and Outlet.)

3. The tool must be plugged into an appropriate outlet,

properly installed and grounded in accordance
3-prong plug and Outlet with all codes and ordinances. The plug and outlet
should look like those in the preceding illustration.
1. Tools marked with “Grounding Required” have (See 3-prong plug and Outlet.)
a three wire cord and three prong grounding
plug. The plug must be connected to a properly
grounded outlet. If the tool should electrically
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malfunction or break down, grounding provides

a low resistance path to carry electricity away
from the user, reducing the risk of electric
shock. (See 3-prong plug and Outlet.)

Double Insulated Tools: Tools with Two prong plugs

1. Tools marked “Double Insulated” do not
require grounding. They have a special
double insulation system which satisfies
OSHA requirements and complies with
the applicable standards of Underwriters
MAINTENANcE

Laboratories, Inc., the Canadian Standard

Association, and the National Electrical Code.

2. Double insulated tools may be used in either of the

120 volt outlets shown in the preceding illustration.
Outlets for 2-prong plug (See Outlets for 2-prong plug.)

Page 6 For technical questions, please call 1-888-866-5797. Item 64288

Extension cords
1. Grounded tools require a three wire extension cord. 7. Make sure the extension cord is properly wired
Double Insulated tools can use either and in good electrical condition. Always replace
a two or three wire extension cord. a damaged extension cord or have it repaired
by a qualified electrician before using it.
2. As the distance from the supply outlet increases,

SAFETy
you must use a heavier gauge extension cord. 8. Protect the extension cords from sharp objects,
Using extension cords with inadequately sized excessive heat, and damp or wet areas.
wire causes a serious drop in voltage, resulting
in loss of power and possible tool damage. TABLE A: REcOMMENDED MINIMUM WIRE
(See Table A on page 7.) GAUGE FOR EXTENSION cORDS* (120/240 VOLT)
NAMEpLATE EXTENSION cORD
3. The smaller the gauge number of the wire, the
greater the capacity of the cord. For example, AMpERES LENGTH
a 14 gauge cord can carry a higher current (at full load) 25´ 50´ 75´ 100´ 150´
than a 16 gauge cord. (See Table A.) 0 – 2.0 18 18 18 18 16
4. When using more than one extension cord 2.1 – 3.4 18 18 18 16 14
to make up the total length, make sure 3.5 – 5.0 18 18 16 14 12
each cord contains at least the minimum
5.1 – 7.0 18 16 14 12 12
wire size required. (See Table A.)

SETUp
7.1 – 12.0 18 14 12 10 -
5. If you are using one extension cord for more 12.1 – 16.0 14 12 10 - -
than one tool, add the nameplate amperes
and use the sum to determine the required 16.1 – 20.0 12 10 - - -
minimum cord size. (See Table A.) * Based on limiting the line voltage drop to five volts at
150% of the rated amperes.
6. If you are using an extension cord outdoors, make
sure it is marked with the suffix “W-A” (“W” in
Canada) to indicate it is acceptable for outdoor use.

Symbology

Double Insulated Read the manual before

OpERATION
set-up and/or use.

VAc Volts Alternating Current WARNING marking concerning

Risk of Hearing Loss.

A
Wear hearing protection.
Amperes
WARNING marking
concerning Risk of Fire.
n0 xxxx/min. No Load Revolutions per Minute (RPM) Do not cover ventilation ducts.
Keep flammable objects away.
WARNING marking concerning Risk WARNING marking concerning
of Eye Injury. Wear ANSI-approved Risk of Electric Shock.
safety goggles with side shields. Properly connect power cord
to appropriate outlet.
MAINTENANcE

Item 64288 For technical questions, please call 1-888-866-5797. Page 7

 Specifications

Electrical Rating 120VAC / 60Hz / 12A

Rotational Speed 0-800 RPM
Impact Rate 0-3900 BPM
SAFETy

Wood Capacity 1-3/5" (41 mm)

Concrete Capacity 1-1/8" (28.5 mm)
Steel Capacity 5/8" (16 mm)
Shank Style SDS

Note: This tool includes an internal safety clutch that helps prevent tool damage
and injury by disengaging the drill function if the bit locks in place.

Setup - Before Use:

Read the ENTIRE IMpORTANT SAFETy INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
SETUp

TO pREVENT SERIOUS INJURy FROM AccIDENTAL OpERATION:

Release the Trigger and unplug the tool from its electrical outlet before
assembling or making any adjustments to the tool.

Note: For additional information regarding the parts listed in the following
pages, refer to Parts List and Diagram on page 14.

Functions
Grease port (36) Hammer Switch (75)
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Auxiliary Drill Switch (44)

Handle
(110)
Trigger (100)

chuck (1)

Lock
Knob
MAINTENANcE

(111)

Speed
control (101)
Figure A

Page 8 For technical questions, please call 1-888-866-5797. Item 64288

 Operating Instructions

Read the ENTIRE IMpORTANT SAFETy INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.

Tool Set Up

SAFETy
TO pREVENT SERIOUS INJURy FROM AccIDENTAL OpERATION:
Release the Trigger and unplug the tool from its electrical outlet
before adjusting the tool or installing accessories.

Adjusting the Auxiliary Handle

The Auxiliary Handle can be placed Band Bracket Auxiliary
in a variety of positions. Handle
To adjust the Auxiliary Handle, turn the Handle
counterclockwise to loosen the band. Slide the
Handle to the desired position then turn the

SETUp
Handle clockwise to secure it in place.
Depth Gauge
Slot

Lock Knob
Figure B

Using the Depth Gauge

The Depth Gauge can be positioned on either Drilling
side or on the top of the Rotary Hammer. The Depth
body of the Hammer will interfere with the Depth
Gauge if the Handle is in the bottom position.

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1. Turn the Lock Knob to open the Depth Gauge Depth Gauge
Slot and slide the Depth Gauge through the
Depth Gauge Slot on the Auxiliary Handle.

2. Position the Depth Gauge as needed, then turn the

Lock Knob to secure the Depth Gauge in place. Drill Bit

Note: the Drilling depth is the distance from the

tip of the drill bit to the tip of the Depth Gauge.
Figure c

changing Drill Bits

cAUTION! Wear heavy-duty work gloves to 2. Release the Chuck.

provide protection when inserting and removing
drill bits. Drill bits become very hot during use. 3. Check that the Drill Bit is secured in place. It
Do not remove drill bits until the bit has cooled. should not be able to be pulled out of the Chuck.
MAINTENANcE

Do not strike stuck bits with a hammer.

Note: When drilling a hole larger than 1-1/4"
1. Pull back on the Chuck and insert or remove diameter, use a Drill Bit with four cutting edges.
the Drill Bit. If inserting the Drill Bit, make
sure it slides all the way into the opening.

Item 64288 For technical questions, please call 1-888-866-5797. Page 9

 Adjusting the Functions
Adjust the Drill Switch and Hammer Switch before using NOTIcE: Move the Switches only when the Motor
the Rotary Hammer. To adjust the Drill Switch, rotate the is stopped. Attempting to move the Switches
Switch until it clicks in place at one of the two positions. while the Motor is engaged will result in abrupt
bit rotation and can cause property damage.
Drill OFF
SAFETy

NOTIcE: When moving the Switches, make sure they

click into the desired position. If not actively engaged, a
Switch could slip out of position resulting in tool damage.

To Drill: Rotate the Drill Switch to the Drill ON setting.

Rotate the Hammer Switch to the Hammer OFF Setting.
The Rotary Hammer will revolve when powered.
Drill ON
To Hammer/Drill: Rotate the Drill Switch to the
Figure D: Drill Switch Drill ON setting. Rotate the Hammer Switch to
To adjust the Hammer Switch, rotate the Switch until it is the Hammer ON setting. The Rotary Hammer
horizontal, pointed toward the right or left side of the tool. will revolve and hammer when powered.

To chisel: Rotate the Drill Switch to the Drill OFF

setting. Rotate the Hammer Switch to the Hammer ON
setting. The Rotary Hammer will hammer when powered.
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Hammer Hammer
ON OFF

Figure E: Hammer Switch

Work piece and Work Area Set Up

1. Designate a work area that is clean and well- 3. Secure loose work pieces using a vise or clamps
lit. The work area must not allow access by (not included) to prevent movement while working.
children or pets to prevent distraction and injury.
4. There must not be objects, such as utility lines,
2. Route the power cord along a safe route to reach nearby that will present a hazard while working.
OpERATION

the work area without creating a tripping hazard or

exposing the power cord to possible damage. The
power cord must reach the work area with enough
extra length to allow free movement while working.

General Operating Instructions

1. Install the Drill Bit. 6. Squeeze and hold the Trigger to
turn on the Rotary Hammer.
2. Adjust the Auxiliary Handle and the
Depth Gauge as needed. 7. Allow the Rotary Hammer to reach full speed
before contacting the work surface.
3. Set the Function by adjusting the Drill Switch
and Hammer Switch to the desired setting. 8. When finished, to prevent accidents, turn off the tool
and disconnect its power supply after use. Allow
MAINTENANcE

4. Set the speed by rotating the Speed Control. the bit to cool then remove it from the Chuck. Clean,
then store the tool indoors out of children’s reach.
5. Plug in the Power Cord.

Page 10 For technical questions, please call 1-888-866-5797. Item 64288

Maintenance and Servicing

procedures not specifically explained in this manual must

be performed only by a qualified technician.

SAFETy
TO pREVENT SERIOUS INJURy FROM AccIDENTAL OpERATION:
Release the Trigger and unplug the tool from its electrical outlet before
performing any inspection, maintenance, or cleaning procedures.

TO pREVENT SERIOUS INJURy FROM TOOL FAILURE:

Do not use damaged equipment. If abnormal noise or vibration
occurs, have the problem corrected before further use.

cleaning, Maintenance, and Lubrication

1. BEFORE EAcH USE, inspect the general condition 2. Monthly, open the Grease Port, clean out old
of the tool. Check for loose hardware, misalignment grease, and replace with new grease.
or binding of moving parts, cracked or broken
NOTIcE: Warranty void if grease is not

SETUp
parts, damaged electrical wiring, and any other
condition that may affect its safe operation. changed according to schedule.

Grease port cover 3. AFTER USE, wipe external surfaces

of the tool with clean cloth.

4. WARNING! If the supply cord of this

power tool is damaged, it must be replaced
only by a qualified service technician.

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Figure F: Grease port

MAINTENANcE

Item 64288 For technical questions, please call 1-888-866-5797. Page 11

 Troubleshooting
problem possible causes Likely Solutions
Tool will not start. 1. Cord not connected. 1. Check that cord is plugged in.
2. No power at outlet. 2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker. If breaker
SAFETy

is tripped, make sure circuit is right capacity

for tool and circuit has no other loads.
3. Tool’s thermal reset breaker 3. Turn off tool and allow to cool.
tripped (if equipped). Press reset button on tool.
4. Internal damage or wear. 4. Have technician service tool.
(Carbon brushes or
switch, for example.)
Tool operates slowly. Extension cord too long or Eliminate use of extension cord. If an extension
cord diameter too small. cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
in Grounding section on page 6.
Performance 1. Accessory dull or damaged. 1. Keep cutting accessories sharp.
decreases over time. Replace as needed.
2. Carbon brushes worn 2. Have qualified technician replace brushes.
SETUp

or damaged.
Excessive noise Internal damage or wear. (Carbon Have technician service tool.
or rattling. brushes or bearings, for example.)
Overheating. 1. Forcing tool to work too fast. 1. Allow tool to work at its own rate.
2. Accessory misaligned. 2. Check and correct accessory alignment.
3. Accessory dull or damaged. 3. Keep cutting accessories sharp.
Replace as needed.
4. Blocked motor housing vents. 4. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed air.
5. Motor being strained by long or 5. Eliminate use of extension cord. If an extension
small diameter extension cord. cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
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in Grounding section on page 6.

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power
supply before service.
MAINTENANcE

Page 12 For technical questions, please call 1-888-866-5797. Item 64288

pLEASE READ THE FOLLOWING cAREFULLy
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE

SAFETy
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

SETUp
OpERATION
MAINTENANcE

Item 64288 For technical questions, please call 1-888-866-5797. Page 13

 parts List and Diagram

parts List
part Description Qty part Description Qty
SAFETy

1 Chuck 1 59 Eccentric Shaft 1

2 Steel Ring 1 60 Flat Key 1
3 Spring Pocket 1 61 Rolling Bearing 1
4 Spring 1 62 Retaining Ring 1
5 Cylinder Head 1 63 Retaining Ring 1
6 Felt Washer 1 64 Spring 1
7 Tray 1 65 Small Gear 1
8 Steel Ball 2 66 Steel Sleeve 1
9 Retainer Sleeve 1 67 Pin 1
10 Steel Ball 3 68 Slide Bearing 1
11 O Ring 2 69 Screw 2
12 O Ring 2 70 Spring Washer 2
13 Shock Hammer 1 71 Clamp Plate 1
14 Retaining Ring 1 72 Gasket Cover 1
15 Rolling Bearing 1 73 Middle Cover 1
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16 Retaining Ring 1 74 O Ring 1

17 Steel Ball 3 75 Hammer Switch 1
18 Piston Sleeve 1 76 Screw 2
19 Flat Key 2 77 Air Deflector 1
20 Spring 1 78 Stator 1
21 O Ring 1 79 Rolling Bearing 1
22 Shock Piston 1 80 Rotor 1
23 Cone Gear 1 81 Rolling Bearing 1
24 Steel Bearing 1 82 Rubber Sleeve 1
25 Retaining Ring 1 83 House 1
26 Slide Bearing 1 84 Labeling 1
27 O Ring 1 85 Brush Holder 2
28 Piston Pin 1 86 Screw 4
29 Piston 1 87 Carbon Brush 2
30 Level 1 88 Bottom Cover 1
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31 Slide Bearing 1 89 Screw 2

32 Gear Box 1 90 Nameplate 1
33 Spring Washer 1 91 Shock Avoidant Base Board 1
34 Screw 1 92 Casing Pipe 2
35 Screw 4 93 Spring 2
36 Grease Port Cover 1 94 Shock Avoidant Push Board 1
37 Screw 6 95 Flat Washer 2
38 Screw 1 96 Screw 2
39 Right Housing 1 97 Rubber Cover 1
40 Screw 4 98 Screw 5
41 Spring Wahser 4 99 Right Handle 1
42 Flat Washer 4 100 Trigger 1
43 Left Housing 1 101 Speed Control 1
44 Drill Switch 1 102 Screw 2
45 Steel Ball 2 103 Cable Clamp Plate 1
46 Spring 1 104 Jacket 1
MAINTENANcE

47 Cone Gear Shaft 1 105 Power Cord 1

48 Flat Key 1 106 Left Handle 1
49 Steel Space Ring 1 107 Clamp Plate 1
50 Rolling Bearing 1 108 Square Cap Bolt 1
51 Flat Washer 1 109 Bracket 1
52 Clutch Cover Board 1 110 Auxiliary Handle 1
53 Large Gear 1 111 Lock Knob 1
54 Steel Ball 8 112 Nut 1
55 Spring 8 113 Decorative Insert 2
56 Clutch 1 114 Depth Gauge 1
57 Nut 1 115 Liner 2
58 Rolling Bearing 1

Page 14 For technical questions, please call 1-888-866-5797. Item 64288

Assembly Diagram

SAFETy
SETUp
OpERATION
MAINTENANcE

Record product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Note: Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.

Item 64288 For technical questions, please call 1-888-866-5797. Page 15

 Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd. • pO Box 6009 • camarillo, cA 93011 • 1-888-866-5797