OPERATION MANUAL

YTxx3

Yard Tractor

Document: TD2886-04EN
Date: 2022-08
 Operation Manual YTxx3

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Change history
Version Description Chapter
04 Added: option Tyre Pressure Monitoring (TPMS) 7.13
Added: Fifth wheel height calibration 7.7.1
Changed: Coolant level 7.5
Changed: Couple & Uncouple a trailer 6.8.2
03 Added: Additional options 2.9
02 Changed: Exhaust particle filter 4.4

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Contents
1 Introduction ............................................................................... 8
1.1 How to use this document ....................................................................... 8
1.2 Abbreviations and phrases ...................................................................... 9
1.3 General lay-out of the tractor ................................................................. 10
2 Safety ....................................................................................... 11
2.1 General .................................................................................................. 11
2.2 Warning messages ................................................................................ 11
2.3 Graphical symbols ................................................................................. 12
2.4 Instructions for safe use......................................................................... 12
2.5 Safety and warning stickers ................................................................... 13
Safety stickers in the cabin ............................................................... 13
2.6 Stickers on the vehicle ........................................................................... 14
2.7 Permissible loads .................................................................................. 19
Permissible loads on ramps.............................................................. 20
2.8 Safety regulations & warnings ............................................................... 20
Before driving off .............................................................................. 20
While driving ..................................................................................... 20
While driving on ramps ..................................................................... 21
Other warnings ................................................................................. 21
Emergency procedures .................................................................... 22
Jack-knifing....................................................................................... 22
2.9 Additional safety measures (optional) .................................................... 23
3 Cabin and operating components ......................................... 24
3.1 Enter and leave the tractor .................................................................... 24
Open and close the door .................................................................. 25
Release the door from the storm anchor .......................................... 26
3.2 Seats ..................................................................................................... 27
Driver's seat - ISRI............................................................................ 27
Steering wheel adjustment (optional) ............................................... 30
Passenger seat (optional) ................................................................. 30
3.3 Seat belt ................................................................................................ 31
Usage ............................................................................................... 31
Releasing.......................................................................................... 31
3.4 Radio (optional) ..................................................................................... 32
3.5 Airconditioning and airflow ..................................................................... 33
Variants ............................................................................................ 33
Controls ............................................................................................ 33
Operation tips ................................................................................... 35
Air blower (optional).......................................................................... 35
3.6 Instruments and controls ....................................................................... 37
3.1 Parking brake lever ................................................................................ 37
Operation .......................................................................................... 38
Parking brake test (optional) ............................................................. 38
Trailer brake lever (optional) ............................................................. 38
Driver operating console ................................................................... 40

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Combined turn indicator, main/dipped beam, flash, horn and wipers

stalk................................................................................................... 41
Fifth wheel controls ........................................................................... 42
Ignition key switch (optional) ............................................................. 43
Terberg Connect® (optional).............................................................. 44
Remote mirror control (optional)........................................................ 45
3.2 Switches ................................................................................................. 45
Rear wiper - speed 1 & 2 (optional)................................................... 45
Rear wiper - interval (optional) .......................................................... 45
Rear fog light (optional) ..................................................................... 45
Work light (optional) .......................................................................... 46
Vehicle lighting .................................................................................. 46
Rotating beacon ................................................................................ 46
Start regeneration ............................................................................. 46
Stop or prevent regeneration ............................................................ 46
Hazard warning lights........................................................................ 47
Mirror heating (optional) .................................................................... 47
Rear window heating (optional) ......................................................... 47
Electric window (optional) ................................................................. 47
Reverse warning buzzer (optional).................................................... 48
Rear axle differential lock (optional) .................................................. 48
Air suspension pressure release (optional) ....................................... 49
Fifth wheel height override (optional) ................................................ 50
Fifth wheel unlock ............................................................................. 50
Additional hydraulics (optional) ......................................................... 51
Additional hydraulics (optional) ......................................................... 51
Additional horn (optional) .................................................................. 51
3.3 Additional warning lights outside the DIM .............................................. 51
Trailer stand-by (optional) ................................................................. 51
Trailer steer angle too large (optional) .............................................. 52
Trailer down (optional) ...................................................................... 52
Trailer at ride height (optional) .......................................................... 52
Exhaust system error (optional) ........................................................ 52
Hydraulic system warning (optional) ................................................. 52
Trailer length (optional) ..................................................................... 52
Trailer system (optional) .................................................................... 53
Central greasing system (optional).................................................... 53
4 Driver Information Module (DIM) description........................ 54
4.1 Dashboard symbol list ............................................................................ 54
4.2 Operating components ........................................................................... 54
4.3 Operation of the DIM .............................................................................. 56
Initialisation and Start screen ............................................................ 56
Screen navigation icons .................................................................... 56
Display settings ................................................................................. 57
Specific view selection function ......................................................... 58
Specific view screens ........................................................................ 59
Important error messages ................................................................. 59

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Other important vehicle information .................................................. 61

Icons and screens for important features ......................................... 61
Illumination ....................................................................................... 62
Menu structure.................................................................................. 62
Password-protected pages ............................................................... 62
Start-up page: engine oil level .......................................................... 62
4.4 Display Symbol overview ....................................................................... 63
5 Digital tachograph (optional).................................................. 67
5.1 Start of shift ........................................................................................... 67
5.2 End of shift............................................................................................. 67
5.3 Possible activities .................................................................................. 67
6 Driving the vehicle .................................................................. 68
6.1 Drive instructions ................................................................................... 68
6.2 Drive safe and durable........................................................................... 68
6.3 Drive economic ...................................................................................... 68
6.4 Before driving ........................................................................................ 69
6.5 Starting the engine ................................................................................ 69
6.6 Stopping the engine ............................................................................... 70
6.7 Shifting and gear changes ..................................................................... 70
Shifting from neutral (N) to drive (D) or reverse (R) .......................... 70
Shifting from drive or reverse (D or R) to neutral (N) ........................ 70
Shifting from drive (D) to reverse (R) and vice versa ........................ 70
6.8 Tractor-trailer (un)coupling .................................................................... 71
Use of the fifth wheel lifting system .................................................. 71
Couple a trailer ................................................................................. 72
Perform Push-Pull test ...................................................................... 72
Uncouple a trailer ............................................................................. 73
7 Periodic checks and maintenance ......................................... 75
7.1 The driver's responsibility ...................................................................... 75
7.2 Fuel (diesel oil) ...................................................................................... 75
7.3 Engine oil level ...................................................................................... 76
7.4 Transmission oil level ............................................................................ 76
7.5 Coolant level .......................................................................................... 77
7.6 Hydraulic level ....................................................................................... 77
7.7 Fifth wheel ............................................................................................. 78
Fifth wheel height calibration ............................................................ 78
7.8 Air tanks and air dryer............................................................................ 80
7.9 Instruments and lighting......................................................................... 81
7.10 Driver's seat and mirrors ........................................................................ 81
7.11 Windscreen washers ............................................................................. 81
7.12 Wheels and tyres ................................................................................... 81
7.13 Tyre Pressure Monitoring System display, TPMS (optional).................. 82
Activation .......................................................................................... 82
Operation .......................................................................................... 82
Settings............................................................................................. 83
7.14 Tyre pressure and wheel load ............................................................... 83

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8 Repair and maintenance......................................................... 86

8.1 Towing or pushing .................................................................................. 86
8.2 Cabin tilting ............................................................................................ 87
Before tilting ...................................................................................... 87
Operating components ...................................................................... 88
To tilt the cabin with the hydraulic hand pump .................................. 89
To return the cabin to its normal position .......................................... 89
To turn the cabin backward ............................................................... 91
To tilt the cabin halfway..................................................................... 91
To tilt and to lower the cabin electrically (optional) ............................ 92
8.3 Tractor cleaning ..................................................................................... 93
High pressure washing...................................................................... 93
Cabin washing................................................................................... 94
Washing upholstery........................................................................... 95
Remove stains .................................................................................. 95
Maintenance of steel rims ................................................................. 95
8.4 Changing wiper blades ........................................................................... 96
8.5 Paintwork damage ................................................................................. 96
Touch up small paint damage ........................................................... 96
Underlying metal damaged: .............................................................. 97
8.6 Electrical equipment ............................................................................... 97
Batteries ............................................................................................ 98
Fuses, relays and converter .............................................................. 99
Fuses ................................................................................................ 99
Relays and converter ...................................................................... 100
8.7 Headlamp ............................................................................................. 101
Light bulb replacement .................................................................... 101

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1 Introduction
1.1 How to use this document
This manual contains important information about the correct and safe use and
maintenance of the Terberg Yard tractor. The manual MUST be read thoroughly
before using the tractor. The tractor will operate safely if the warnings, notices and
instructions provided in this manual are observed.

This manual is not intended to be a technical guide, nor is it intended to make the
reader an all-round tractor mechanic. Its purpose is to inform you how to operate and
service your tractor so problems can be avoided.
The better you know your tractor, the better the performance you can expect from it.

Because of the wide range of engines and transmissions available, a separate

engine and transmission booklet is provided at the back of the driver instructions.
Please read this carefully.

Terberg shall not be liable for any external equipment that does not form part of the
supply contract.

All information markings and symbols on the tractor conform to general operator
standards to the best of our knowledge. However, customers should review this
document based on their own working requirements and standards.

MANUFACTURER

Visitor address: Postal address:

Terberg Benschop B.V. P.O. Box 2
Oranje Nassaustraat 10 NL-3405ZG BENSCHOP
NL-3405XK BENSCHOP The Netherlands.
The Netherlands.
Internet address:
Phone: +31 348 459 211 www.terbergbenschop.nl
E-mail: info@terbergbenschop.nl

Terberg Benschop B.V. reserves the right to make changes without prior notice.

These are the original instructions. The English language is binding. Request your
language if it is missing.

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The following information can be found on the tractor. Fill in all data before using the
tractor for the first time.

First date of use:...................................................................................................

Tractor model: ......................................................................................................

VIN: XLW..............................................................................................................

Year of manufacture: ............................................................................................

Engine: .................................................................................................................

Transmission: .......................................................................................................

Front axle: ............................................................................................................

Rear axle: .............................................................................................................

Fifth wheel type: ...................................................................................................

Tyres: ...................................................................................................................

1.2 Abbreviations and phrases

AdBlue: Known as Diesel Exhaust Fluid (DEF), Urea or (in the USA):
AIR1.
DIM: Driver Information Module (part of the dashboard).
YTxx3: Yard Tractor Central Controller 3rd gen. Primary controller in the
new electrical architecture.
ETRTO: European Tyre and Rim Technical Organization.
GVW: Gross Vehicle Weight.

GCW: Gross Combination Weight.

VIN: Vehicle Identification Number.

Terberg Connect: A telematics solution for transferring data from vehicle to server.

SCR: Selective Catalytic Reduction.

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1.3 General lay-out of the tractor

Pos.: Description:
1 Main switch.
2 Rear view mirror.
3 Cabin entrance.
4 Fuel tank.
5 Trailer connections.
6 Fifth wheel.
7 Lifting frame.
8 AdBlue tank.
9 Batteries.
10 Draw bar pin.
11 Cabin tilting system.

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2 Safety
2.1 General
Important
Read this document carefully before use
Keep for future reference

2.2 Warning messages

DANGER

Indicates a potentially and imminently hazardous situation

which, if not avoided, will result in death or serious injury.
All DANGER notifications will be indicated with this RED symbol.

WARNING

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.
All WARNING notifications will be indicated with this ORANGE
symbol.

CAUTION

Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.
All CAUTION notifications will be indicated with this YELLOW
symbol.

NOTICE

Notices will be used to show special procedures or point out

important facts. Notices will also designate important
information regarding this manual and its use.
All NOTICE notifications will be indicated with this BLUE symbol.

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2.3 Graphical symbols

DAMAGE
In this manual you will see DAMAGE notices. Notices will be
used to show special procedures or point out important facts.
DAMAGES will also designate important information
regarding this manual and its use.
All NOTICE notifications will be indicated with this ORANGE
symbol.

2.4 Instructions for safe use

 To ensure safe operation of the tractor, read this manual carefully before driving
the tractor. The instructions, warnings, messages and notices on the stickers and
in the manual must always be observed.
 Yard tractors are designed for the frequent moving of loads using trailers. The
yard tractor is intended primarily for moving trailers using a fifth wheel system that
is movable in vertical sense.
 Drivers must inspect the tractor visually before commencing work and check the
instrument panel immediately after starting and regularly while driving.
Instruments must display their normal values. A number of data plates showing
information about maximum permissible axle and trailer loads are located inside
the cabin.
 Every driver using this tractor must be suitably trained and qualified in the use of
the equipment and must be fully acquainted with local site regulations and
procedures. Depending on the equipment of the tractor and the nature of the
work, the training should cover all equipment and all tasks that must be done by
the driver.
 Terberg Benschop recommends that the driver wears at least safety clothing that
enhances driver visibility and safety shoes with reinforced toe caps and soles.
 The minimum clothing requirements depend on local site regulations.

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2.5 Safety and warning stickers

Safety stickers in the cabin
Always refer to the safety adhesives inside the cabin and on all the other locations on
and in the tractor.

Pos. Type Description

1 Side window Side window of the tractor, slide to open and can also be
used as an emergency exit.
2 Safety hammer Safety hammer to smash in the window as an option to
escape the tractor in case of emergency.
3 Coat hanger Hanger clip to store a coat.
4 Speaker Audio speaker for the tractor’s radio system.
5 Radio
6 Sticker location Sticker location inside the cabin to point out safety to the
driver.

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2.6 Stickers on the vehicle

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Standing on a moving tractor is prohibited. (T24063985)

Persons must not ride on the tractor.

Leaning out of the cabin while driving is prohibited (T24064004)

Leaning out of the cabin is prohibited while driving.

Do not drive tractor and trailer with disconnected brake hoses.

(T24064087)
Driving the tractor with disconnected brake hoses and lighting
cables is prohibited.

Beware of the door that may swing open during tilting of the cabin
(T24063994) (Optional side door)
If the side door is not properly locked it can swing open when the
cabin is tilted and hit and seriously injure a person.

Never open the radiator cap when the radiator is hot (T24064013)
Opening the cap on the radiator or the expansion tank is
dangerous when the engine is hot as coolant can escape at high
pressure and temperature.

Do not stand under the hydraulic lift frame (T24064022)

Beware of the lift frame and keep out of its working zone.

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Beware of rotating belts (T24064031)

Rotating V-belts are dangerous. Keep clear of rotating V-belts
and pulleys.

Take care when tilting the cabin (T24064040)

If the cabin is tilted, check that it is locked before carrying out any
maintenance work. Keep clear of the cabin while it is tilting.

Beware of rotating propeller shaft (T24064069)

Keep clear of rotating propeller shafts and ensure that clothing is
not hanging loose.

Apply the parking brake before leaving the cabin (T24064945)

Always apply the parking brake before leaving the cabin.

Carry out a pull and push test before attempting to move

(T24066662)
The red and green fifth wheel indicator lights are for indication
only.
A pull and push test must be carried out before attempting to
move any trailer.

This tractor is equipped with a 3½" fifth wheel (T24064096)

(optional)
This tractor is equipped with a fifth wheel with a 3½ " coupling.
Only trailers equipped with a 3½ " king pin may be coupled.

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Read the operation manual (T24064151)

Read this manual carefully before using the tractor.

Main electrical power switch (T24063302)

Use the main switch to turn on the battery power (by turning it
clockwise) or off (by turning it anticlockwise).

Check torque chassis bolts (T24066995)

Check the chassis bolts torque (180 Nm), as described in the
Maintenance manual, Chapter 18.

AdBlue only (T24066695)

Use only AdBlue according to the ISO 22241 specification in the
AdBlue tank.

Ultra-Low sulphur Diesel Fuel only (T24066696)

Only use ultra-low sulphur diesel fuel in accordance with
standard EN590. The maximum sulphur content must not
exceed 10 ppm.

Fifth wheel manual safety lock (T24065896) (optional)

If the tractor is prepared for driving on public roads the fifth wheel
is equipped with a manual safety lock. Always keep the
fifth wheel manual safety lock in locked position when driving on
public roads.

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Engine oil (T24063163)

Level check point or filling point for engine oil.

Gearbox oil (T24064981)

Level check point or filling point for transmission oil.

Hydraulic oil (T24063172)

Level check point or filling point for hydraulic oil.

Coolant (T24066822)
When coolant is changed or refilled, it is important that no air is
trapped in the cooling system. Make sure that coolant is filled at a
maximum rate of 10 Liter/minute.

Place safety bar (T24066990)

After tilting the cabin, place the safety bar immediately as shown
on both stickers.

Retighten the wheel nuts after a wheel change (T24063856)

After a wheel change or new tractor
delivery, it is mandatory to tighten the
wheel nuts in the correct order after a
maximum of 50 kilometres or after 8
hours of operation/driving, whichever
occurs first.

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2.7 Permissible loads

Inside the cabin the vehicle data plate is located with technical information, such as
maximum axle loads.

Pos. Type Description

1 Headlamp Percentage of inclination of the headlamps.
inclination
2 Configuration Terberg internal unique vehicle ID number.
number
3 Approval no. Number of type approval for technical compliance.
4 Year of Year of build / manufacture.
manufacture
5 VIN number Vehicle Identification Number.
6 Type Vehicle type.
7 Manufacturer Name and address of the manufacturer.
8 CE marking Conformité Européenne:
According to European Machinery Directive.
9 GVW Gross Vehicle Weight: Max. permitted total weight of
vehicle at 20 km/h.
10 GCW Gross Combination Weight: the maximum permitted
weight of the combination of tractor + trailer(s).
11 Axle load 1 Maximum load on the front axle.
12 Other axle loads Maximum load on other axles.
13 Turntable load Maximum load on the fifth wheel.
14 Technical The maximum mass that is technically allowed, in this
maximum mass case at a maximum speed of 20 km/h
15 Legally Legally maximum permitted mass.
maximum
permitted mass

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Permissible loads on ramps

Several factors have influence on the loads the tractor is subjected to, such as:

Because of this wide variety of conditions, generic numbers for maximum loads
cannot be given, a guideline can be found in the section “Driving on ramps”.
2.8 Safety regulations & warnings
(See also the "WARNING STICKERS" section).

NOTICE

Read this manual carefully before using the tractor and always
follow the safety and maintenance instructions.

Before driving off

 Check vehicle lighting.
 Never use a faulty tractor.
 Always apply the parking brake before leaving the cabin.
 Keep doors and windows closed during use to minimize the sound level inside the
cabin and to minimize the power usage for the heater and air conditioning
(especially for EV-vehicles).
 The air conditioning will only operate efficiently if all cabin windows and doors are
closed.
 Keep the cabin floor free from loose objects and clean to prevent slipping, tripping
and falling.
 Use the (optional) sun visor to prevent blinding by sunlight.
 Ensure that a clear field of vision is always maintained.
 Always wear the seat belt provided during operation.
 Always connect the trailer's brake hoses and lighting cables before driving off with
a coupled trailer.
 Check visually that the tyres on the tractor and trailer are not damaged and
inflated correctly.

While driving
 Always make sure that you are in driving position; in the driver’s seat with the seat
belt buckled up.
 Ensure that maximum permissible loads and speeds are not exceeded.

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 Keep trailer height to a minimum, but high enough to provide sufficient clearance
under the trailer and the load.

While driving on ramps

 Ensure that ramps offer sufficient traction before driving onto them.
 While driving on ramps, always keep the fifth wheel as low as feasible and be
aware of restrictions imposed by the maximum permissible loads.
 Ramp speed should never exceed a fast walking pace.
 Drive steadily on ramps, avoid abrupt braking and acceleration.
 Do not stop on ramps.
 If you have to stop, move off again slowly and steadily.
 Parking the tractor with a loaded trailer is prohibited on ramps.

Other warnings
 The tractor must not be used for carrying passengers, either in the cabin or on the
trailer, other than on the passenger seat (optional).
 Always use at least two points of contact when walking/working on the tractor to
eliminate the risk of slipping or falling.
 In the event of steering pump failure, the tractor will remain steerable, but the
steering will be noticeably much heavier.
 If possible, always keep both hands on the steering wheel.
 If the engine must stay on during maintenance, keep clear of all rotating parts.
 Keep clear of the fifth wheel lifting system at all times.
 Always close and secure the protection plates and (lift-) covers before driving.
 Lift covers must remain easily accessible.
 Do not place flammable materials near the exhaust system.
 Keep away from any hot components (e.g. the exhaust system).
 If you have to lean out of the window, do so with great care because of passing
vehicles and other moving or stationary objects.
 All leaks must be reported and fluids be disposed of in accordance with local
environmental requirements.
 All oil-related products are flammable and must be kept away from hot
components.
 Keep body parts and loose articles away from operating controls.
 Be aware that a high-pressure water jet can pass through rubber seals.
 The usage of high-pressure cleaning water jets is prohibited on all electronic
components, drive-line components, seals, covers, doors, windows, roof or any
other area sensible for water intrusion.
 The parking brake must not be applied while the tractor is moving.
 However, the parking brake must be used as an emergency brake if the tractor's
service brakes fail.
 The tractor must be maintained by trained personnel in accordance with the
manufacturer’s instructions.

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Emergency procedures
This section describes the procedures for the driver / operator when an emergency
situation occurs.
Emergency exit from the cabin
In the event of an emergency you must be prepared to exit the tractor in the safest
possible manner.
 Drivers must be familiar with the methods of exiting their cabin.
 Doors must never be locked during operation; it must be possible to enter or exit
the cabin quickly in the event of an emergency.

Possible exit points are:

 Via the driver’s door.  Via the side windows by breaking the
 Via the side window. glass with the life hammer.
 Via the roof hatch (optional).
Emergency steering
In the event of a stopped engine or significant loss of hydraulic power, stop the
tractor as soon as possible. Loss of engine power will result in failure of power
steering.
Tyre failure
In the event of tyre failure, the driver must brace himself with both hands on the
steering wheel. Try to control the tractor and stop immediately.
Fire
In the event of smoke or fire the tractor must be stopped immediately. Apply the
parking brake, turn the ignition off and exit the tractor as soon as possible. All drivers
must be familiar with procedures and site requirements in the event of fire.

Jack-knifing
Jack-knifing is the description of a trailer that “overtakes” the tractor in an
uncontrolled manner. In most jack-knifing situations, the trailer and the tractor unit
form a very sharp angle, which makes control of the vehicle assembly impossible.
Jack-knifing is very dangerous and should always be prevented by driving carefully
and always connect the air hoses of the tractor to the trailer so that the trailer has its
own brakes.

 Skidding means that a trailer starts to move sideways and the driver moves the
tractor into that direction to prevent Jack-knifing.
 Jack-knifing means that the driver has not been able to correct a trailer that
started to move sideways. The trailer takes over the direction, the driver cannot
correct for the total movement nor direction of the vehicle combination.

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2.9 Additional safety measures (optional)

Pedestrian zone lighting (optional)
Red lines are projected to mark the
prohibited area around the vehicle.
This light operates whenever the
ignition is in the ON position.

Pedestrian notification lighting (optional)

A blue spot is projected on the ground
to notify pedestrians and other vehicles
of movement of the tractor. This light
operates whenever the ignition is in the
ON position.

Seat belt notification light (optional)

A green light mounted on top of the
cabin is illuminated whenever the
ignition is in the ON position and the
driver’s seatbelt is fastened.

Reverse activated hazard lights (optional)

When the vehicle is shifted into reverse gear the hazard lights will automatically be
activated.

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3 Cabin and operating components

The cabin is the workplace of the driver and contains many switches and other
devices to operate the tractor properly.

DANGER

Carefully read the following chapters before driving or

operating the tractor.

3.1 Enter and leave the tractor

To ensure maximum safety, always take additional care when entering or leaving the
tractor. Use the hand rail to ensure that at least two points of contact are always
maintained. Only the hands rail and steps that are provided should be used to enter
or leave the tractor.

A seat is provided in the cabin for one driver. When driving and operating the tractor,
the driver should be on the seat with both hands on the steering wheel or the controls
and wear the safety seat belt.

Passenger seat (optional):

The cabin can be equipped with a fold-down seat including a seat belt.

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WARNING
Take additional care when entering the tractor to avoid
personal injury.
Be careful when the steps and decking are slippery.
Use at least two and where possible three points of contact
when walking/working on the tractor to eliminate the risk of
slipping or falling.

Open and close the door

To increase safety at work, Terberg recommends the door to be closed at all times
during operation.

3.1.1.1 To open and close the door from the outside

Open: Hold the door handle and press the knob with your thumb, then pull the
handle towards you, the door will open.

Close: Hold the handle and firmly push the door until it is closed.

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3.1.1.2 To open and close the door from the inside

Open: Squeeze the handle and open the door to leave the tractor.

Close: pull the horizontal bar to close the door.

Release the door from the storm anchor

Release: pull the lever inside the door and the door will become loose from the storm
anchor.

WARNING
Keep all objects and body parts clear of the door. Be careful
of your hands and body parts while closing or opening the
door.
Do not open the door while the tractor is moving.
Be careful not to bump your head while entering the cabin.

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3.2 Seats
Driver's seat - ISRI
Correct adjustment of the driver’s seat is important for operation, safety and comfort.
The seat should be adjusted to the driver’s personal requirements before driving off.

Do not adjust the seat while the tractor is moving, only when the tractor is stationary
and the parking brake has been applied. Always wear the seat belt provided.

3.2.1.1 Seat controls ISRI 6860

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Pos. Type: Description:

1 Handle Lift and move the entire seat forwards and backwards.
Release to lock in position.
2 Horizontal Lever to the:
suspension Right: suspension released.
Left: suspension locked.
3 Seat cushion Pull the lever and move the seat cushion forward and
adjustment backward. Release the lever to lock the seat horizontal
movement.
4 Tilt adjustment Pull lever and adjust the tilt by applying or releasing weight
on the front of the seat cushion area.
5 Arm rest Armrest fixed to the seat and can be reclined.
6 Back rest Adjustable back rest.
7 Side support
8 Head rest Adjustable headrest.
9 Buckle Buckle to insert the safety seat belt.
10 Reclining Control to move the backrest forward and backward.
11 Lumbar support Switches that control the air pressure for lumbar support.
12 Height Lever that controls the height of the seat.
adjustment
13 Shock absorber Dampens the air suspended seat, adjustable to driver
specific comfort demands.
14 Lower seat Switch that releases the air suspension and lowers the
seat for easy exit and entrance.
Please Note that certain features shown below are optional and depend on the
chosen seat variant.

3.2.1.2 Seat adjustments

The following descriptions give information about the seat adjustment controls (ISRI
seat).

Seat height adjustment

The upper legs must be almost horizontal with the feet flat on the
floor. Your upper legs must be properly supported by the seat.

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Seat length adjustment

The seat length should be adjusted in such way that there is a gap
of 10 cm (about the thickness of a fist) between the seat and the
back of the knees.

Seat distance adjustment

Press the throttle pedal gently and then adjust the seat distance to
a preferred/desired position.

NOTICE

The legs must not be fully stretched when the accelerator or brake
pedals are fully depressed.

Adjust the back rest / Steering wheel

Press your shoulder against the back rest and hold your arm fully
stretched on the steering wheel at 12 o’clock. Adjust the back rest
to the preferred positions and maintain good visibility. When this
adjustment is finished your shoulder must still be against the back
rest and your arm must be fully stretched at 12 o’clock on the
steering wheel. The back-rest angle must be between 95 and 115
degrees. If this is not the case, repeat step 3 so that you get an
angle of between 95 and 115 degrees.

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Adjust the lumbar cushions (ISRI)

Use the 2 buttons highlighted here to inflate / deflate the 2 lumbar
support cushions until your lower back is gently supported.

Adjust the shock absorber (ISRI)

Use the button highlighted here to adjust the seat damping force to
provide appropriate comfort for different road conditions. Pull the
lever to increase the damping force and push it to decrease the
damping.

Steering wheel adjustment (optional)

Adjusting the steering wheel is done with the lever on the left side
of the steering column.
Pull the lever up to adjust the height of the steering wheel. Push
the lever down to adjust the angle of the steering wheel.

Passenger seat (optional)

As an option, a passenger seat can be installed in the cabin.

To enable the passenger seat, it must be retracted

downwards from the vertical position.

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Follow the procedures below to use the passenger seat.

Before using the passenger seat:

 Make sure the tractor is at a complete standstill with applied parking brake.
 Let the passenger enter the cabin and use the seat belt provided.
 Close the door.

3.3 Seat belt

The driver's seat is equipped with a two-point or a three-point (optional) seat belt.
The passenger seat (optional) is always equipped with a two-point seat belt. The seat
belt is a component which, together with the seat and cabin structure, forms a safety
system that has been developed to provide the best protection. Always wear the seat
belt while seated.

Usage
Pull the belt carefully over the shoulder and/or hips. Check that it is
not tangled or twisted. Secure it by sliding the metal tongue into the
buckle. A click indicates that the belt is locked. Check the lock by
giving it a short tug.

Tighten the belt somewhat by allowing it to retract until the belt is

aligned along the body.
For maximum protection, avoid wearing the seat belt over
voluminous clothing.

Releasing
To release the seat belt, grasp the belt and press the red button on the buckle.
Gently guide the belt with your hand and allow it to retract fully.

The belt will lock when the belt is stressed / pulled quickly.

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Fasten and unfasten the seat belt.

NOTICE
The belt is intended for one person only.
Do not draw the belt over sharp edges.
Occasionally check the attachments and fittings as well as the
condition of the belt itself.
Clean the belt with water. If detergent is necessary, use only a
detergent that will not affect the belt material.

WARNING
Always wear the seat belt while seated to ensure maximum
protection.
The seat belt should be replaced after a collision or an
accident, even if it has no visible damage or noticeable
defects.
Do not modify, repair or dismantle the seat belt, the seat or
the attachments.
The cabin complies to the requirements for roll-over protection structure. In case of a
roll-over, the driver must remain at his seat. Only the seat belt will hold the driver at
the seat during roll-over.
In case of a collision (when the tractor is stationary or driving) the seat belt will hold
the driver at the seat.
3.4 Radio (optional)
Check that the radio is working correctly and is tuned to the
correct frequency/channel for the site, before driving off.
Never adjust the radio while driving. For more detailed
information, see the radio manufacturer's operating manual.

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WARNING

DO NOT adjust the radio volume too high – this will expose the
driver to excessive noise and may lead to loss of hearing over
a period of time.

3.5 Airconditioning and airflow

Variants
The variety of equipment level can be:
 Air Conditioning only.
 Heating only.
 Heating + Air Conditioning.
 Electronic Climate Control.
Air conditioning only Heater only

Air conditioning and heater Electronic Climate Control ECC

(Option)

Controls
Temperature
Rotate the dial to control the interior temperature:
 Turn it anti-clockwise (towards blue) to reduce the temperature
(LOW).
 Turn it clockwise (towards red) to increase the temperature
(HIGH).

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WARNING

DO NOT adjust the temperature in the cabin too high, this can lead
to loss of concentration.

Blower speed
Rotate the dial to adjust the speed of the air flow:
 Turn clockwise to increase blower speed.
 Turn anti-clockwise to reduce blower speed.
Turning the dial to the most anti-clockwise position (noticeable
click) switches the blower off.

Recirculation (only ECC)

Used to change between the intake of fresh outside air and
recirculated cabin air. Operating the tractor for longer periods of
time with the air recirculation mode active, can result in a low air
quality and condensed windows.

Windscreen demisting
Press the button to rapidly defrost / demist the front windscreen.
Make sure that there are no obstacles blocking the air flow from
dashboard to the windscreen.
Make sure all vents are opened and pointed towards the
windows.
Air conditioning
Press the button to activate the air conditioning. The indicator in
the button will illuminate to show the system is active.

Cabin heater vents

The direction of the air flow can be controlled by the air
outlets to the left and right of the heater controls.
 The air outlets can be turned and the flaps can be
adjusted to different angles.
 By closing the outlets more air flow is directed to the
defroster outlets, which are directed at the windows.
This can be used to increase demisting or to get an
indirect air flow.

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Operation tips
Hot climate
 Turn the air conditioning ON.
 Set the heating control to LO.
 Set the circulation control to Recirculation (the indicator on the
button is on).
 Set the blower speed to maximum.

When the desired cabin temperature has been reached, increase fresh air content by
setting the circulation control to the fresh position. Adjust heating and blower speed
as required.
Moderate climate
 Turn the air conditioning OFF.
 Set the heating control to the desired temperature.
 Set the circulation control to Fresh (the indicator on the button is off).
 Set the blower speed as desired.
High humidity and demisting
Although ambient temperatures could be in comfortable, air humidity might reach
unacceptable levels. The air conditioning system also functions as a dehumidifier.
 Turn the air conditioning ON.
 Set the heating control to the desired temperature.
 Set the circulation control to Fresh (the indicator on the button is off).
 Set the blower speed to medium.
Cold climate
 Turn the air conditioning OFF.
 Set the heating control to HI (maximum).
 Set the circulation control to Recirculation (the indicator on the
button is on) for 5 - 10 minutes to ensure rapid heating.
 Set the blower speed to maximum.

When the desired cabin temperature has been reached, increase the fresh air
content by setting the air circulation control to fresh. Set heating and blower speed
as desired.

Air blower (optional)

This type of air blower is additional to the ventilation blower that is underneath the
dash panel. In some situations, there are two of these additional ventilators installed
in the cabin of the tractor.
Air flow speed is adjusted by moving the switch (arrow) at the foot of the fan.

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This switch (see arrow) has three air flow

positions, numbered 0 to 2.
 0 = Blower off.
 I = Blower runs at lowest speed.
 II = Blower runs at highest speed.

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3.6 Instruments and controls

The following illustration is an example of a possible dashboard configuration.

Please note: Dashboard configurations differ depending on customer’s request.

Pos.: Type: Description:

1 Air vent Fully adjustable air ventilation nozzle.
2 Key switch The key switch is optional.
3 EMO button Emergency Off button (optional) when an emergency
occurs.
4 Switches Area where many switches are located, refer to the chapter
of the tell-tales and switch types and assignments.
5 DIM Driver Information Module: all important information about
the tractor will be on this screen.
6 Switches Area where many switches are located, refer to the chapter
of the tell-tales and switch types and assignments.
7 Lever Parking brake lever.
8 Air vent Fully adjustable air ventilation nozzle.
9 ECC Panel Electronic Climate Control panel (optional).
10 Ignition Ignition and starter switch.
switch
11 Speaker Speaker for audible alarms.

3.1 Parking brake lever

The parking brake lever operates the parking brake of the tractor.
When the lever is in the:
 UP position: parking brake released.
 DOWN position: parking brake is engaged; the vehicle cannot
move.
 TEST position: tractors parking brake is engaged, trailers
parking brake is released.

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Operation
Release
Pull the parking brake lever up and move it to the upper position.

Only when the pressure in the supply of the brake system (air tanks) is high enough,
can the parking brake be released.
Engage
Push the parking brake lever down until it locks into position.
The parking brake indicator light will illuminate in the DIM.

When the parking brake is applied and the trailer air hoses and cables are
connected, the trailer brakes are also applied. (Only with EG braking system).
Parking brake tell-tale
The indicator light illuminates whenever the parking brake is
engaged.

WARNING
Always apply the parking brake before leaving the cabin.
Do not drive the tractor when the warning light (parking brake
applied) illuminates.
Do not park a tractor with a heavy trailer on a ramp.
Do not apply the parking brake while the tractor is in motion,
except for emergencies.
Only move a trailer with the pneumatic supply / command lines
connected.

The parking brake can be used to stop the tractor in case of emergency. (only to be
applied in the event of failure of the normal service brakes).

Parking brake test (optional)

With an ECE trailer brake valve fitted, the trailers brakes are applied automatically
when the tractors parking brake is applied.
The trailer brakes are operated by compressed air supplied by the tractor, an air leak
could result in trailer brakes being released.
To check that the braking capacity of a tractor is sufficient to prevent rolling when
coupled to a trailer:
 Move the parking brake lever down beyond the park position.
 The trailers brake will be released while the tractors parking brake will remain
engaged. If the combination remains stationary, the tractor's braking capacity is
sufficient.
To release the parking brake, pull the control lever up and move it to the upper
position.

Trailer brake lever (optional)

A single-stage, separate trailer brake lever can be installed as an option. This lever
has a spring return mechanism and can be used to apply the trailer brakes gradually
between released and fully applied.

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An ECE trailer brake valve can be ordered as an option. When this

brake valve is fitted, the trailer brakes are applied automatically
when the tractor parking brake is applied.
The trailer brakes are operated by compressed air, but air leakage
could result in them being released. It is therefore advisable to
check that the braking capacity of a tractor, when coupled to a
trailer, is sufficient to prevent both the tractor and trailer from rolling
when parked for a prolonged period.
This can be checked by pushing in on the lever and moving it to the
extreme upper position. The trailer brakes will now no longer be
applied. If the combination remains stationary, the tractor's braking capacity is
sufficient.
To release the pneumatic parking brake, pull the control lever up and move it to the
upper position.

WARNING
Do not drive the tractor when the warning light (parking
brake applied) illuminates.
Always apply the parking brake before leaving the cabin.
Do not park a tractor with a heavy trailer on a ramp.
When the tractor is parked for a long period, always apply
the parking brake.
Do not apply the parking brake while the tractor is in motion
as this is dangerous, except for emergencies.
It is not allowed to move a trailer without the pneumatic
supply / command lines connected.
The parking brake must not be applied while the tractor is in motion. The parking
brake must be used to stop the tractor in case of emergency. (only to be applied in
the event of failure of the normal service brakes).

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Driver operating console

Pos. Type: Description

1 Fingertip Hydraulic lifting of the Fifth wheel:
control  Push forward = lower the fifth wheel.
 Pull backwards = raise the fifth wheel.
2 Switch Remote fifth wheel operation:
 Fifth wheel release button.
3 Housing Switch control housing for fifth wheel lift control and
transmission control.
4 Switch Free to fill in/not designated (depending on configuration).
5 Switch Free to fill in/not designated (depending on configuration).
6 Switch Free to fill in/not designated (depending on configuration).
7 Switch Free to fill in/not designated (depending on configuration).
8 Switch  Remote fifth wheel operation. (depending on
configuration).
9 Gear lever Transmission control with the gear lever:
 Push forward = select forward gear.
 Pull backwards = select reverse gear.
Push / pull to middle position: neutral.
10 Switch  Switch to lower the rear air suspension.
See the automatic transmission manual for its detailed operating instructions.
The fingertip lever may only be operated with the tip of the fingers.
Lowering and raising is proportional, the speed of the hydraulic fifth wheel lifting
depends on the stroke of the fingertip lever.

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WARNING
Always bring the vehicle to a complete standstill and let the
engine run idle when shifting:
From forward gears (2,3..6, D) to reverse gears.
From reverse gears to forward gears.
From any gear to neutral.
From neutral to any gear.

Combined turn indicator, main/dipped beam, flash, horn and

wipers stalk.
The turn indicator lever is fitted on the left side of the steering column and operates
several functions.

CAUTION

• Do a check on the turn indicators before driving, make

sure they work properly.
• Only use the horn to alert other people in case of
dangerous situations.

Low beam and high beam

Push the lever downwards to switch
from low beam to high beam.
The lever will stay in this position until it is
moved back manually.
The low beam must be switched on first to
use the high beam.
Flash the high beam
Pull the lever upwards to flash the main
beam lights. The lever is spring loaded and
will return to its normal position automatically
when released.
Horn
Press the button at the end of the lever to
activate the horn.

Turn indicators:
Left: pull the lever back to operate the left-hand turn indicator lights.
Right: push the lever forward to operate the right-hand turn indicator lights.
Front wiper, washer, wiper interval switch:
The turning function of the knob on the lever activates the front windscreen wiper in
the following way:
J = Interval (optional).
0 = Off.
I = Speed 1.
II = Speed 2 (optional).
Pressing the ring at the end of the handle operates the windscreen washer(s).

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NOTICE

• The shown combined indicator stalk is for the LHD (Left Hand
Drive) situation. For a RHD (Right Hand Drive) tractor, the
indicator stalk is on the right side of the steering column.

Fifth wheel controls

The lift frame is connected to the tractor’s hydraulic
system. Adjust the height of the fifth wheel by using the
lever.

 Move the lever towards DOWN to lower the

fifth wheel.
 Move the lever towards UP to raise the fifth wheel.

WARNING
It is important to keep the fifth wheel as low as possible
when driving on steep hills, to prevent loss of vehicle
stability.
Servicing the fifth wheel or the lifting system may only be
carried out if goosenecks or trailers are not attached and
when the lift frame has been properly supported.
Keep clear of the underside of trailers or lifting systems
during coupling.
Keep the fifth wheel as low as possible.
Ensure there is sufficient ground clearance and top
clearance during driving.

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NOTICE

Terberg cannot be held liable for any external equipment other than
that included as part of the supply contract.

Ignition key switch (optional)

The ignition key has 3 positions:
0= Off.
1= Drive (ignition on) + pre-heating (optional) .

2= Start.

An ignition switch can be installed instead of the ignition key. This has the same
positions and functionality as the ignition key, the only difference being that the
switch cannot be removed, where the ignition key can.

Conditions for start are:

 Gear lever in neutral position.
 Park brake or service brake is applied.
 Some engines will not start if the transmission is not in neutral.
 After the key is turned to position 1, the engine pre-heater (optional) is switched
on and warning light illuminates.
 The engine may not be started while the pre-heating warning light illuminates.
 When the pre-heat indication light extinguishes the engine can be started and the
key returns automatically to the ON position.

Note: When the key is turned to the ON position, the battery charging light illuminate,
indicating that the engine is not running and the battery will not charge.

WARNING
Do not attempt to drive the tractor when any of the warning lights
are illuminated.
Release the parking brake before driving off.
Do not place the ignition switch in the “Off” position while driving,
this will lead to loss of control of the tractor.

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Terberg Connect® (optional)

Using PIN Code:

If you enter a wrong PIN code, the red LED will flash 3
times.

 Wait 10 seconds before trying again.

Using RFID card:

1. Place the ignition in the ON position.
2. Hold the RF ID card in front of reader.
3. A beep indicates the ID is accepted.
The green LED illuminates.
4. Start the tractor.

NOTICE

• If you enter a wrong PIN code switch the ignition OFF, and wait
30 seconds before trying again.

Led indications for the card reader

LED 1 LED 2 LED 3
 Yellow Power ON
 Green ID OK
 Red ID NOT OK

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Remote mirror control (optional)

To control the remotely adjustable mirrors, a small joystick is
installed.
How to adjust the mirrors:

 Turn it clockwise to select the mirror on the right side.

 Turn it anticlockwise to select the mirror on the left side.

WARNING

An object seen in the mirrors might be closer than it seems.

Adjust the outside mirrors before driving the vehicle.

3.2 Switches
This overview explains the icon of all different switches that can (as standard or
option) be used in the YT tractor model.

Rear wiper - speed 1 & 2 (optional)

This three-position switch controls the rear wiper speed 1 and 2.
The first position activates wiper speed 1 and the second position
activates wiper speed 2.

Rear wiper - interval (optional)

This three-position switch controls the rear wiper speed 1 and 2.
The first position activates wiper speed 1 and the second position
activates wiper speed 2.

Rear fog light (optional)

Switch the dipped beam on first and then press this switch to switch
on the rear fog light.
Note: If you leave the switch on, the fog light will not come on
automatically when the vehicle lighting switch is turned off and on
again.
To switch the fog light on, the rear fog light switch must be switched
on again after the vehicle lighting switch has been switched on.
Also, if the ignition has been switched off, the fog light resets and
must be separately operated to switch on the fog light again.

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Work light (optional)

The work light switch operates the work light at the front and /or at the
rear of the tractor. It is possible that more than one work light switch
is installed. If this is the case, check visually which work light
corresponds to which switch.

Vehicle lighting
This three-position switch controls the vehicle lighting:
 In the first position the lighting is off.
 The second position will switch on the parking lights, whether the
ignition key is on or off.
If the ignition key is on, all parking lights will be switched on by
position 1.
If the ignition key is off and the parking lights are switched on,
they can be selected more specifically with the direction indicator
lever:

Lever neutral: All parking lights off.

Lever left: Left-hand parking lights on.
Lever right: Right-hand parking lights on.

 The third position of the vehicle lighting switch operates the dipped beam.
 The day running lights will automatically switch on when the ignition of the vehicle
is on.

Rotating beacon
Turn on the rotating beacon by pressing this switch.

Start regeneration
Press the switch to start manual regeneration
More information is available in the engine section.

Stop or prevent regeneration

The switch prevents automatic regeneration or stops manual
regeneration.
The SCR system cleaning stop lamp illuminates when the
regeneration is stopped or prevented.
More information is available in the engine section.

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Hazard warning lights

By pressing this switch, the hazard warning lights are activated. This
means that both the left and right direction indicators operate
simultaneously.
Use this feature when you are forced to stop or park the tractor in
any abnormal place to ensure that other vehicles notice the tractor.
The hazard warning lights can be operated whether the ignition key
is on or off.
If the direction indicators on one or both sides of the vehicle start
flashing more rapidly, then there is a problem with the direction
indicators. Determine the cause immediately.

Mirror heating (optional)

This switch activates the electric heating of the outside mirrors.
It can be used to demist and de-ice the outside mirrors.
Activate mirror heating only when demisting/de-icing is necessary.
Continued operation can damage the system and is not necessary.

NOTICE

The mirror heating is only active when the (diesel) engine is

running.

Rear window heating (optional)

Activate the rear window heating by pressing this switch. It can be
used to demist and de-ice the rear window.
Activate rear window heating only when demisting/de-icing is
necessary. Continued operation can damage the system and is not
necessary.

Electric window (optional)

Operation of the electric windows:
 To open the electric window: press the switch down.
 To close the electric window: press the switch up.
The electric window is equipped with “comfort control”, which
means that if the switch is held down for more than one second,
the window will automatically continue lowering until it reaches its
end stop.

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CAUTION

Keep body parts away from the window and its surroundings
when closing it.

Reverse warning buzzer (optional)

Push this switch to deactivate the reverse warning. The switch is
spring loaded and the choice of overruling the reversing buzzer must
always be properly assessed by the responsible driver / operator. If
there is no urgent need to overrule the reversing buzzer, do not do it!

When the reversing buzzer is deactivated by the driver / operator, a

message and tell-tale will appear on the DIM to confirm the choice of
the driver / operator.

This situation will remain as it is during the operation of the tractor.

The functionality of the reversing buzzer will be switched back on
again when:
 The driver operator pushes the reversing switch again.
 The ignition has been switched off and on.
DANGER
Do not deactivate the buzzer for any longer than absolutely
necessary.
Take extreme caution when driving the tractor without the
reversing buzzer, as other road users will not receive an
audible warning.
The operator is responsible for the safe use of this vehicle.

Rear axle differential lock (optional)

There are basically three possibilities:

If a switch is available on the dashboard:

The rear axle differential divides the traction power between the wheels on the left
and the right side of the vehicle and enables the wheels to rotate independently from
each other. This is necessary to make turns and reduce tyre wear and mechanical
overload on the drive train, it ensures optimal traction.
The rear axle differential can be locked with the rear axle differential lock switch on
the dashboard.

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When this is done the wheels both left and right are connected rigidly and therefore a
loss of traction on one side of the tractor will not result is a complete loss of traction
of the wheel(s) on the other side.
Only use the rear axle differential lock when driving straight ahead on a slippery road.
Always try to avoid sharp turns when the tractor is loaded and when anti-skid
equipment is fitted (e.g. snow chains).
Engage the rear axle differential lock:
 Ensure that the vehicle is at a complete standstill.
 Move the gear lever to Neutral.
 Press the rear axle differential lock switch.
 The rear axle differential lock will be activated and by means of an engaged
proximity sensor or engaged switch, the system knows that the differential lock is
active.
 Note: if the warning light does not come on continuously after a moment, drive the
tractor carefully and slowly until the light comes on continuously. Applying a little
steering might be necessary.
Disengage the rear axle differential lock:
 Ensure that the vehicle is at a complete standstill.
 Move the gear lever to Neutral.
 Return the rear axle differential lock switch to its original position.
 The rear axle differential lock warning light on the DIM will extinguish. When the
warning light is extinguished the rear axle differential lock has been disengaged.
 Note: if the warning light does not extinguish after a moment, drive the tractor
carefully and slowly until the light extinguishes. Applying a little steering might be
necessary or driving backwards and forwards.

WARNING
Only use the rear axle differential lock in slippery
conditions.
Do not use the rear axle differential lock when the tractor is
loaded or when anti-skid equipment is fitted.
Drive carefully once the rear axle differential lock has been
engaged.
Never turn sharp corners on firm ground with the rear axle
differential lock engaged.

Air suspension pressure release (optional)

When the fifth wheel lifting system is set to its lowest position,
releasing air from the air suspension will lower the fifth wheel even
further. This may be necessary when low trailer/trestle systems are
handled.
Air can be released from the rear axle air suspension by pressing the
switch.
When the switch is released, the air bellow will fill with air again,
raising the rear end of the tractor.
The height adjustment of the air suspension will take control and
maintain proper drive height.

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WARNING

Make sure the vehicle is stationary before releasing air from

the air suspension.

Fifth wheel height override (optional)

This switch has a universal function depending on the owner's
requirements.
Functions can be as follows:

WARNING

Do not use the override switch for any longer than

necessary.
Do not drive with an excessively raised trailer.

Fifth wheel unlock

Press the switch “fifth wheel remote unlock” to unlock the fifth wheel.
Do so only when the vehicle is at a complete standstill.
If two switches with the same symbol (optional) are installed, then both
switches must be pressed simultaneously to unlock the fifth wheel.

The fifth wheel can only be unlocked when the vehicle is almost at a
standstill.
If the fifth wheel is still mechanically locked after pressing the switch,
try to put the vehicle in Neutral to eliminate any friction force between
the fifth wheel and the king pin.

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WARNING
Make sure that the tractor is at a complete standstill before
you unlock the fifth wheel.
Before uncoupling the trailer from the fifth wheel, ensure
that the trailer is secured with the trailer brake or with
chocks under the tyres.
Before uncoupling the trailer from the fifth wheel, ensure
that the trailer connections (airlines and electrical
connections) between trailer and vehicle are disconnected.
Make sure that the front-end of the trailer is sufficiently
supported to the ground, either by trailer legs or alternative
supports.

Additional hydraulics (optional)

In general, this switch controls additional hydraulics, but will always
correspond to customer-specified requirements.

Additional hydraulics (optional)

In general, this switch controls the additional hydraulics that operate
any vehicle Power Take-Off (PTO).

Additional horn (optional)

This switch controls the additional horn on the vehicle or the trailer.

3.3 Additional warning lights outside the DIM

Trailer stand-by (optional)
In general, this indicator light indicates that the trailer is in standby and
is ready for use.

This light can also respond to customer-specific requirements.

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Trailer steer angle too large (optional)

This light indicates the driver that the current angle between the tractor
and the trailer is too large. Do not steer any further, lower the speed
and try to get the vehicle combination straightened until the light goes
out.

Trailer down (optional)

This light indicates that the trailer has been lowered, e.g. to
connect/disconnect the trailer. Make sure the trailer has been raised
before driving off.

Trailer at ride height (optional)

This light indicates that the trailer has been raised to ride height. It is
OK to drive off with the combination.

Exhaust system error (optional)

The exhaust system light illuminates when a fault occurs in the
exhaust system, e.g. a blocked exhaust filter.

Hydraulic system warning (optional)

This warning light illuminates when a fault occurs in the hydraulic
system, e.g. high oil temperature / restriction.

Trailer length (optional)

The trailer length light (yellow) illuminates when a fault occurs or when
the trailer is shifted out.

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Trailer system (optional)

The trailer level light lights when a fault occurs or when the trailer is
not at the correct level.

WARNING

If the indicator light illuminates, stop the vehicle as soon as

possible.
The fault must be resolved by authorised service personnel.

Central greasing system (optional)

 The central greasing system is indicated on the dashboard by a
lamp or a symbol. The type of indication depends on the central
greasing system that is installed.
 In most cases the lamp shows the status and fault codes of the
greasing system by means of flashing codes.
 Normally when the ignition is set to the ON position, the lamp
flashes to indicate the default duty cycle of the system.
 When a greasing cycle is executed, when the cartridge is (almost)
empty or when there is an error, this will also be indicated.
(See the central greasing manual for detailed information).

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4 Driver Information Module (DIM) description

The DIM is a digital dashboard that helps drivers to remain safe on the road by letting
them know something needs attention. The dashboard symbols list will help you to
recognise common, safety and warning indicators. The list may very per vehicle.
 The DIM is an information management tool that visually tracks, data, errors,
metrics to warn the driver and to monitor the vehicle and specific processes.
 The data is customised to meet the specific needs of a vehicle or company.

4.1 Dashboard symbol list

During the process, the DIM displays a variety of symbols like warnings, safety icons,
information and common icons and indicators, divided into different groups like:
 Warning symbols.
 Safety symbols.
 Lighting indicators and symbols.
 Diesel powered vehicle symbols.
 Advanced Feature symbols and indicators.
 Common symbols.
All symbols, icons and tell-tales are listed in Paragraph 4.4.
4.2 Operating components

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WARNING

Only use the DIM menu when the vehicle is stopped, and the
parking brake has been applied.

Audible signals
The DIM always gives a warning sound signal when the driver needs to be notified of
an error code or of an important change in the condition of the vehicle.
Navigation key functions
 Move Up.
 Move Right.
 Move Down.
 Move Left.
  Enter key. To select a function, a value or to
activate the screen icon beside the key-group.

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4.3 Operation of the DIM

Initialisation and Start screen
When you turn on the ignition
switch, the DIM will initialise.

After initialise, the DIM shows the

Terberg logo, followed by the
start screen.
 The start screen shows
information like:
speed (km/h), information
about the gears, engine speed
(rpm) and vehicle information
that requires attention.

Further on in this chapter is

described how you can change
the predefined display view.

Screen navigation icons

Five screen navigation icons can
appear at right side of the display.
Three of them are shown in the
figure.

 If screen navigation icons are

not visible, then you press the
Enter key.
 Press the selection key beside
an icon to show the desired
screen.

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Five screen navigation icons

 Apply Record the desired data.

 Go back Go to the previous screen.

 Numerical values Open the screen to change and enter values.

 Specific view selection Select a screen for your desired vehicle part.

 Dashboard Return to the normal basic dashboard screen.

Display settings
Most of the advanced display settings are factory set. You can change the desired
settings e.g. Language and Time settings by yourself.

 Use the navigation enter key to

select icon ‘Numerical values’
as shown.
 A new screen called: ‘Display
settings’ appears.

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In this screen you can adjust the

following items:
 Brightness
 Time.
 Date.
 Language.
 Dashboard settings.
 Day / Night mode.
Use navigation keys to adjust and
to enter the desired settings.
 At the right side of the display
appear new corresponding
screen navigation icons for this
screen.
 Always enter new adjustments
with the ‘Apply’ icon /button or
choose another function to go
back.

Specific view selection function

Carousel function:
With this function you can choose
a screen for a specific topic, like:
 Vehicle.
 Gearbox (Transmission).
 Time (and date etc.).
 Odometer.
 Lifter frame.
 Fifth wheel.
 Speed data.
This list can vary per vehicle type.

Method:
 Press the function key, related
to the ‘Rotation’ icon two times.
 Use the navigation key group
to rotate the carousel until you
have selected the desired
vehicle part topic.
The lowest and boldest icon
will be the active one, in this
case ‘Vehicle’.

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Specific view screens

A few ‘Specific view’ screens are shown below, Vehicle and Gearbox.
 In each screen you can get more technical information about the chosen topic.
Use the screen navigation icons / buttons in the desired screen to display more
detailed information.

Specific view ‘Vehicle’

This screen displays information
about the brakes and the battery.

With the icon ‘Numerical values’

you can another screen for more
information.

Specific screen ‘Gearbox’

(Transmission)
This screen displays two kind of
gearbox temperatures:
Oil sump temperature.
Torque converter temperature.

Important error messages

If an error occurs, e.g. a tem-
perature gets too high during the
working process, then a red
warning frame with text pops up in
the display as shown.

In this case a transmission

temperature error occurs.
 Select icon ‘Numerical values’
at right side of the screen.
 A new screen appears in which
you can make choices to check
temperatures, or to check other
things.

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Check oil temperatures

Activate the icon ‘Numerical
values’ and navigate to the
‘Transmission Oil Level’ screen.

This screen shows extensive

information about the oil level.

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Other important vehicle information

In the same way as described for the Specific screens, you can check other
important vehicle data, like:
 Engine oil level.
 Service information.
 Active Error information.
 Saved Error information.
 Vehicle type information and so on.
 Parameters and other info for service technicians.
Icons and screens for important features
The status of important features, e.g. work lights is shown in the DIM.
 When one or more work lights are active, it will be shown in the DIM by icons.
 In this case the regarding icon(s) will light up white.
1. Work light front.
2. Work light rear side cabin.
3. Work light behind.
4. Screen selection icon.

 ‘Work lights front’ pop-up

message.

Other functions and features

 Function and features may very per vehicle. Each important function or feature
has its own DIM screens, pop-up frames and commands.
 For detailed technical information, contact your Terberg dealer.

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Illumination
The display is backlit when the ignition is on.
The buttons are backlit when the vehicle lighting is switched on.

Menu structure
Press button 1 – MENU to open the DIM menu. A list with the following options will
be displayed:
 Instrument Panel.
 Numerical Values 1.
 Numerical Values 2.
 Display Settings.
 Terberg Service Tools (only for authorised service personnel).
Use the jog dial to move the cursor (coloured bar) to one of the listed pages, for
example ‘Instrument Panel’, and press button 1 – OK to select the page.

A second menu is available by selecting Terberg Service Tools in the DIM menu. A
list with the following options will be displayed:
 Menu.
 AEB Start.
 Stall Test.
 Terberg Diagnostics.
 Output Activation CC.
 Output Activation DRC.
 Manual Gear Selection.
 Test Instrument Panel
Use the jog dial to move the cursor (coloured bar) to one of the listed pages, for
example ‘Test Instrument Panel’, and press button 1 - OK to select the page.

Password-protected pages
Some pages require a password to gain access. If that is the case, the following
screen will appear after selecting the page in the menu:

Start-up page: engine oil level

After moving of the ignition key to the first position or in the event of a wake-up
signal, the following start-up page will appear for a few seconds (not for Cummins
engines).

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CAUTION
Do a check on the engine oil. Make sure that the engine is at
ambient temperature and has been stopped for minimal 15
minutes.
After draining or adding engine oil, always restart the ignition key
to perform a new check.
The digital oil level check (if available) is for indication only.
If the digital level check does not change after adding/draining,
the sensor could be faulty. In this case, the dipstick and filling
cap are at the left side of the front bumper, check the oil level.

4.4 Display Symbol overview

Icon Colour Description Notes
Indicate the status of a
Reminder to fasten your seat belt.
three-point seat belt
Red Always wear the seat belt while driving to
(belt with single
ensure maximum protection.

shoulder harness).
If the light comes on while the engine is
running it indicates that the gearbox oil
temperature is too high.
Transmission oil Avoid steep gradients and stop-start
Red
temperature high. traffic.
Shift to Neutral and run the engine at
1200-1500 rpm for 2-3 minutes.
Note: the engine will shut down at 130˚C.
If the light comes when the engine is
running it indicates that the oil pressure is
Engine oil pressure low
Red too low.
(Not Mercedes engine).
STOP the engine immediately and check
the oil level. Top up if necessary.
If the light comes on while the engine is
running it indicates that the engine
Engine coolant
Red temperature is too high.
temperature high.
Avoid steep gradients and stop-start
traffic.

Fifth wheel locked The fifth wheel is connected to the trailer.

Green
correctly Always perform the Push-Pull test.

The fifth wheel is not correctly locked, or

the kingpin is not detected.
Fifth wheel not locked
Red Driving with a trailer attached is
correctly.
prohibited! Check the trailer connection
before driving.

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Icon Colour Description Notes

If this light comes on the vehicle must be
stopped.
Red Parking Brake applied.
Before driving off the parking brake must
be disengaged, and the light must be out.
This comes on when the air is released
Air suspension
out of the rear air suspension.
Yellow pressure rear axle
Do not drive in this situation, it is only for
released (optional).
coupling a low trailer.

Informs the driver that the parking lights

Green Parking lights on.
are switched on.

Green Low beam on.

Blue Main beam on.

White Work light active.

H2 Max height, no override possible.

Fifth wheel high or low H1 Height limitation, override possible.

Yellow
limit override. L1 Lower limitation, override possible.
L2 Min height, no override possible.

Rear axle differential

Caution: differential lock is active.
lock.
Yellow Use this only when driving straight ahead
Flashing = requested.
on slippery roads.
Continuous = engaged.

The air filter needs servicing or replacing.

Engine air filter
Yellow The fault must be resolved by authorised
obstructed / blocked.
service personnel.

Fault in exhaust system The fault must be resolved by authorised

Yellow
(optional). service personnel.

High exhaust
Yellow Regeneration is active.
temperature.

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Icon Colour Description Notes

Fuel level low Illuminates continuously when the fuel

Yellow
indication. level is below 10%.

See section:
Yellow Water in fuel filter.
“Repair and maintenance - Fuel filter”.

Check the fuel system.

Yellow Low fuel pressure. Fuel filter, pump or leakage could be the
cause.
The exhaust after treatment filter is full or
Exhaust particle filter
faulty.
blocked (after
Yellow Follow instruction on dashboard.
treatment system)
(optional).
See Engine section.
Exhaust regeneration
Yellow
disabled.

Urea level low Illuminates when the urea level is below

Red
indication (AdBlue). 10%.

Wait to start the

White
engine.

A problem or a potential problem has

Yellow Engine malfunction.
been detected.
Have it checked or repaired.
Engine fault (code) Refer to the fault code in the Engine
Yellow Service manual or refer to authorised
active.
service personnel

Stop the vehicle and engine as soon as

Red Stop the engine
possible to prevent further damage.

Engine coolant level Stop the vehicle and check the coolant
Yellow
low. level. Add/drain coolant if necessary.

Engine oil level low or Stop the vehicle and check the engine oil
Yellow
Engine oil level high level. Add/drain oil if necessary.

A problem or a potential problem has

The transmission has been detected.
Yellow failed or is mal- Have it checked or repaired.
functioning. Refer to the fault code in the trans-
mission manual.

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Icon Colour Description Notes

This warning light shows when the
engine is not running.
The light should extinguish when the
engine speed exceeds 1000 rpm.
Continuously = If the light comes on while the engine is
Alternator not running. running, there could be a fault in the
Red alternator circuit.
Flashing = Have the vehicle checked by authorised
Battery Save Active. service personnel.
If the light is flashing, the battery level is
too low.
The vehicle lighting and some services
(heating, etc.) are deactivated.

Have the brake pads inspected by

Yellow Brake pads worn.
authorised service personnel.

Loss of power Illuminates when there is a loss of

Yellow
steering. hydraulic power.

Yellow Traction control active.

Reverse driving buzzer

Red
switched off.

Red Engine rpm too high. Reduce engine rpm immediately.

Left direction indicator

Green
active.

Right direction
Green
indicator active.

The engine does not respond to the

PTO governor (engine
accelerator pedal.
Yellow RPM governor) is
The governed RPM value is indicated by
active.
a red mark on the rim of the RPM gauge.

Green Power Take-Off (PTO).

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5 Digital tachograph (optional)

Tractors can be equipped with a digital tachograph. A concise guide is described
below to enable you to operate the device. For further information please refer to the
tachograph's user manual.

5.1 Start of shift

5.2 End of shift

5.3 Possible activities

Operational – e.g. while driving.
Available – e.g. while riding as a co-driver.
Resting – e.g. while resting or taking a break.
Other – e.g. while inspecting or servicing the tractor.

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NOTICE
The start and end times of shifts are stored as GMT (Greenwich
Mean Time). Make sure your local time is converted correctly.
Always carry an additional printer roll inside the tractor; if you
lose or damage your Driver Card, you will have to make printouts
to record your shifts.
When inserting two Driver Cards at the same time, make sure
that the driver's card is in the left-hand slot (3). This because the
tachograph will automatically switch Driver 1 to ‘Operational’
when the tractor is moving.

6 Driving the vehicle

6.1 Drive instructions
The driver must adhere to safe driving instructions at all times.
6.2 Drive safe and durable
To ensure safe and durable operation of the tractor, Terberg provides the following
driving instructions which the driver must read before driving the tractor.

 Always wear the seatbelt when driving the tractor.

 Make a check, after starting and regularly while driving, that the instruments
display their normal values.
 Brake as smooth as possible to avoid excessive wear of the brake components.
 Always connect the air-lines to prevent jack-knifing under heavy braking.
 Always connect the electrical connections for tractor lighting on the trailer.
 For stability of the combination keep trailer height to a minimum, but high enough
to provide sufficient ground clearance.
 Keep the cornering speed low when driving with high loads.
 When the engine is still cold, use only low revs and a low engine load.
 Try not to turn when the front wheels are obstructed by a curb or other object. The
power steering and tyres can be damaged.
 Use the differential lock only when driving straight ahead on slippery roads.
 Let the engine idle for at least 1 minute before turning the engine off. This avoids
heat stress in the engine.
 Always apply the parking brake when parking the tractor.
6.3 Drive economic
High fuel costs and concern for the environment mean that the tractor should be
driven as economically as possible. Driving the tractor correctly can have a significant
effect on fuel consumption and operational life.

Observing the instructions below will ensure that your tractor is used economically:
 Try to keep engine speed as low as possible.
 Ensure tyre pressures are correct.
 Do not drive at excessive speed.
 Do not allow the engine to idle unnecessarily.

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 Never leave the tractor for prolonged periods with the engine running.
6.4 Before driving
 Check the engine oil level.
The oil level should be between the marks on the dipstick. The oil must be topped
up if the level is below the minimum mark, and drained if the level is above the
maximum mark. If topping up is required, use the same grade of oil as is already
in the engine.
 Check the coolant level visually in accordance with the instructions given in this
manual.
 Check for leakage of the pneumatic braking system visually and auditive.
 Check the DIM for warning lights.

WARNING

Never drive off in a tractor with active warning lights and/or

a leakage of the pneumatic braking system!

 Check the wheel mounting and tyre pressure of all wheels.

 Check the fuel level.
 Use fuel which comply with these standards: DIN 51601, EN590 or ASTM-D975
No.2-D (refer to the manual of the engine supplier).
 Check the AdBlue level.
 Adjust driving position (seating, steering column).
 Adjust the mirrors.
6.5 Starting the engine
Start the engine in the following order, if applicable make sure start inhibiter is
activated/ used:
 Ensure the parking brake is applied.
 Ensure the gear lever is in neutral.
 Turn the ignition key to the first position (drive + preheating).

 Turn the ignition key to the start position, to start the engine.

 Release the ignition key after the engine has started.

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NOTICE

If the engine is cold, keep the engine speed below 1500 rpm until
normal operating temperature is achieved.
It is advisable to allow a hot engine to idle for at least one minute
before turning it off (this allows the turbocharger to cool down).

6.6 Stopping the engine

Stop the engine in the following order:
 Stop the tractor, while holding the brake pedal depressed.
 Select neutral.
 Apply the parking brake and keep pressing the brake pedal.
 Turn the ignition key to the “0” position.
6.7 Shifting and gear changes
NOTICE

This manual describes the general procedure for

shifting/changing gears.
Refer to the gearbox section in this manual for detailed
instructions.

Shifting from neutral (N) to drive (D) or reverse (R)

 Apply the brakes of the tractor by depressing the brake pedal.
 Release the parking brake.
 Do not press the throttle pedal, the engine must be running idle.
 Shift the gearbox in drive (D) or reverse (R) with the gear lever.
 If the chosen gear is indicated on the DIM, the tractor is ready for driving off.
 Gently release the brakes as the tractor tends to drive off.
 Press the throttle pedal for (further) acceleration.

Shifting from drive or reverse (D or R) to neutral (N)

 Apply the brakes of the tractor by pushing the brake pedal.
 Ensure the tractor is standing completely still.
 Do not press the throttle pedal, the engine must be running idle.
 Shift the gearbox from drive or reverse to neutral with the gear lever.
 If the N is indicated on the DIM, the gearbox is in neutral. Keep applying the
brakes or apply the parking brake.

Shifting from drive (D) to reverse (R) and vice versa

 Apply the brakes of the tractor by pushing the brake pedal.
 Ensure the tractor is standing completely still.
 Do not press the throttle pedal, the engine must be running idle.
 Shift the gearbox in drive or reverse with the gear lever.

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 If the chosen gear is indicated on the DIM, the tractor is ready for driving off.
 Gently release the brakes as the tractor tends to drive off.
 Press the throttle pedal for (further) acceleration.

WARNING

To avoid unexpected tractor movement, always apply the

brakes of the tractor, keep the throttle released and the
engine at idle, before changing gear.

6.8 Tractor-trailer (un)coupling

Use of the fifth wheel lifting system
The tractor has a lifting system for its fifth wheel, due to ergonomic reasons for the
driver. Optionally a fixed fifth wheel is available. The system can lift trailers of
different heights, so the driver does not have to manually retract the supporting legs
of the trailer.

The lifting system is part of the tractor's hydraulic system. The fifth wheel can be
adjusted to any desired height using the control lever.
 Move the lever forward to lower the fifth wheel.
 Move the lever back to raise the fifth wheel.
The fifth wheel must be raised sufficiently to ensure the trailer is parallel with the
surface (as shown in picture) to ensure optimal load distribution, and stresses in the
combination are kept to a minimum.

When driving on uneven ground, obstacles, ramps etc. the trailer can be raised to
keep it sufficiently clear from the ground. Always keep it as low as possible (parallel
to the surface it drives on), which ensures the highest stability.

A horizontal trailer makes loading/unloading also easier. During loading/unloading of

the trailer, it is for the Terberg tractor not necessary to lower the trailer legs to the
ground. It is a local operational decision whether this is required or not.

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Fifth wheel load detected speed limiter (optional)

If the lifting system detects a load on the Fifth wheel,
the maximum speed will be limited, as shown on the
DIM.

Couple a trailer
 Bring the upper surface of the fifth wheel to the same height as
the lower side of the trailer's wear plate.
 Reverse the tractor carefully until the fifth wheel locks.
 The fifth wheel locks automatically when the king pin is properly
seated in the fifth wheel.
 Ensure the green indicator light illuminates.
 If this is not the case, correct coupling has not been achieved.
Try to connect again until the green indicator light illuminates.
 Perform a push – pull test (see next section) to ensure the
trailer is coupled properly.
 Activate the parking brake and confirm it is engaged.
 Connect and engage air lines and electrical connections
between the trailer and vehicle as required.

Perform Push-Pull test

When the green warning light is switched on, the driver cannot
rely on that information solely. To safely move the trailer, the
driver must first perform a Push-Pull test.

Push-Pull test
A pull and push test can be done on a trailer equipped with parking brakes or on a
trailer with sufficient weight on the trailer legs.

Method:
 Couple the trailer in the fifth wheel.
 Do not connect the trailer brake hoses and do not lift the fifth wheel.
 Apply forward gear and "pull gently" (without sliding the trailer legs over the
ground) to confirm the fifth wheel is properly locked.
 Check the green light on the DIM. If it illuminates, then drive the tractor backwards
slowly and carefully.

This test proves that the trailer is mechanically connected to the tractor unit. The air
hoses can now be connected and the trailer can now be moved.

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WARNING
Check the king pin size before connecting the trailer to the
fifth wheel.
If a king pin is not the correct size, it could result in a
damaged trailer or fifth wheel.
The driver must ensure that the king pin is correctly locked
in place, either by visual inspection or by carrying out a pull
and push test to confirm that correct locking has taken
place.
The tractor must not be used until all the above conditions
are checked.

Uncouple a trailer

NOTICE

Check that there is no load on the fifth wheel and ensure that the
fifth wheel locking mechanism is not under tension.

When unlocking is not possible with the

switch, you can unlock the fifth wheel by
manually:
 Use the cabin lift bar (stored on the left
side of the driver’s seat) to unlock the
fifth wheel by hand.

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Procedure:

WARNING
Before uncoupling the trailer from the fifth wheel, ensure
that the trailer is secured with the trailer brake or with
chocks under the tyres.
Before uncoupling the trailer from the fifth wheel, ensure
that the trailer connections (airlines and electrical
connections) between trailer and tractor are disconnected.

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7 Periodic checks and maintenance

Refer to the separate paragraphs for maintenance, performed by the driver/operator.
7.1 The driver's responsibility
Daily maintenance requires the driver to take a few minutes each day to check a
number of important items to ensure proper operation of the tractor. These few
minutes are intended both for the driver's safety and for safety of fellow road users. It
is also a way of checking that all the operating systems are in good condition before
starting the day's work. If topping up a system is necessary, use only the approved
liquids.
The following items must be checked:
 Fuel level (diesel).
 Engine oil level.
 Transmission oil level.
 Engine coolant level.
 Hydraulic oil level.
 Fifth wheel.
 Air tanks and dryers.
 Instruments and lights.
 Wheels and tyres (tyre pressure).
 Driver’s seat and mirrors.
 Wind screen washer level.
CAUTION

The maintenance in this manual is for a daily operation

only. For a more comprehensive service refer to the
Terberg Maintenance manual.

7.2 Fuel (diesel oil)

Use fuels that comply with the standards:
 DIN 51601, EN590 or ASTM-D975 No.2-D.
See the engine manufacturer's maintenance and operation manual for specific fuel
recommendations and specifications. Use special winter fuels for quick starting in
winter.

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NOTICE

It is extremely important that fuel is kept clean and free from dirt
or water, to prevent damage to the fuel pump and the injectors.

7.3 Engine oil level

Refer to the engine manufacturer maintenance guidelines in the Engine Manual.
Always use the dipstick instead of the digital oil level check for the best information
about the oil level in the engine.
To do so, withdraw the dipstick from its holder and wipe it with a clean, lint-free cloth.
Replace the dipstick in the holder. Withdraw the dipstick again and check the oil
level.
This should be between the marks on the dipstick. Top up with the correct oil through
the filler hole if necessary.
Always top up with the same make and type of oil as is already in the engine or
transmission.
For more detailed information, refer to the Terberg Maintenance manual.

NOTICE

Digital oil measurement not supported with the current engine

Cummins B6.7
Do a check on the engine oil level.
Make sure that the engine is at ambient temperature and has
been stopped for minimal 15 minutes.

7.4 Transmission oil level

Do a check on the oil level: withdraw the dipstick (not for Allison transmissions
because of automatic oil level measurement) from its holder and wipe it with a clean,
lint-free cloth. Replace the dipstick in the holder.
Withdraw the dipstick again and check the oil level. The level should be between the
marks on the dipstick. If necessary, top up with the correct oil through the filler hole.
Always top up with the same brand and type of oil as is already in the engine or the
transmission.
For more detailed information, refer to the Terberg Maintenance manual.

NOTICE

Refer to the transmission section of the operation manual for a

detailed procedure.

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7.5 Coolant level

The coolant level is checked automatically, when the coolant level becomes too low
the low coolant warning light illuminates.
If the warning illuminates:

If the warning light remains illuminated repeat steps 2 through 5.

Never fill the system with water alone. A high-performance coolant which offers
adequate protection against corrosion, cavitation and freezing must be used.
For more detailed information about coolant, refer to the Terberg maintenance
manual.

WARNING
Never open a hot cooling system as hot coolant can cause
severe burns.
Glycol is toxic. Hands must ALWAYS be washed after
handling glycol.
Dispose of glycol in the proper manner.

Always allow the system to cool down before removing the expansion tank cap.
Do not remove an expansion tank cap from a hot cooling system.
7.6 Hydraulic level
Before checking the oil level, check the hydraulic oil hoses, connections and
cylinders for leaks. The oil level must be halfway up the sight glass when the lifting
system is in its lowest position. If the oil level is too low, top it up with the same type
of oil that is already in the system. Add oil through top of the return of the hydraulic oil
filter. Use cleanliness during filling and only add clean oil.
collected oil must not be thrown back into the tank due to possible contamination.
Removing the filter cover and adding oil must be carried out with the engine switched
off to eliminate the risk of oil spillage.
For more detailed information refer to the Terberg maintenance manual.

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NOTICE
 Make sure that the lifting system is in its lowest position when
you check the oil level.
Use the same type of hydraulic oil as already used in the
hydraulic system.
Avoid under all circumstances dirt and dust entering the oil
reservoir.
Work cleanly, use clean oil and clean cans for oil filling.

7.7 Fifth wheel

Check that the fifth wheel is well greased to eliminate wear.
Keep the fifth wheel sensors clean. They must be clean and in good condition to
ensure correct operation. Clean the sensors with a lint-free cloth if necessary.

WARNING

Stay away of an operating fifth wheel. Body parts could

become trapped in the fifth wheel or between the fifth wheel
and the tractor chassis.

Fifth wheel height calibration

NOTICE
• The represented height of the Fifth wheel is the height from top
of chassis to top of Fifth wheel.
• The calibration action can only be done one time in the DIM
screen, otherwise leave the DIM screen and re-open again to
make a new calibration.
• When opening the calibration menu, there is always a pop up
message with info about the calibration process.

NOTICE

A level 1 password is required

 Select Menu.

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 Navigate to Service tools.

 Press the enter key to
select apply

 Navigate to calibration.
 Press the enter key to
select apply

 Select ‘Fifth wheel height’.

 Press the enter key to
select apply

 Use the Up and Down keys on the

navigation button to enter the Level 1
password.
 Press the enter key to unlock the screen.

 Read the instructions on the screen.

 Press the enter key to
select apply

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Screen when Fifth wheel height

limitation installed

NOTICE
• When a Fifth wheel height limitation is installed it can only be
overridden by holding the OVERRIDE button, when the calibration
procedure is finished, make sure to lower the lift frame below its
limited value.
• Only press the CALIBRATION button at the highest mechanical
position. Otherwise there is no reliable representation of the height.

Start calibration

Press the button: dashboard to return to the main dashboard screen, or the Go
back button to return to the Settings menu.

NOTICE
The maximum mechanical height can be noticed when the hydraulic
pump hits its maximum pressure limit, this is noticed by a louder pump
sound.

NOTICE

The DIM is still in level 1 password mode after calibration.

Switch the power off and on again to reset the password mode.

7.8 Air tanks and air dryer

Air tanks contain compressed air, delivered by a pump on the engine. The air is
taken in from the environment and then treated for quality, so it does not damage or
wear out the air system components.
For that reason, an air dryer is installed but, in some cases, the moist in the
compressed air cannot be dried completely and must be let off. To do so, there is a
water drain valve installed at the bottom of each air tank. Pull the valve (or
chain/cable connected to it) to let off any moist (see red arrows).

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Open the manual valve weekly to maximal prevent

moisture inside the air-pressure system.
The automatic valves (option) are triggered every
time the brake is applied. Do a check of both types
of valves in accordance with the Terberg
maintenance manual.

An air dryer extracts water from the tractor’s air circuits. The air
dryer is maintenance free for the driver.

WARNING

Water in the air circuits will shorten the lifetime of the air
circuit components and can result in failure of brake
components.

7.9 Instruments and lighting

Check all lights and instruments before driving.
7.10 Driver's seat and mirrors
Adjust the seat and mirrors to the correct positions before driving.
7.11 Windscreen washers
Check the fluid level and top up if required. The reservoir is located near the mirror
stand on the cabin entry platform.
 In the summer, add screen cleaner to the water reservoir to keep the windscreen
free of greasy deposits and insects.
 In the winter, use water mixed with special screen wash anti-freeze.
7.12 Wheels and tyres
Do a check on the condition and pressure of the wheels and tyres every week.
Make sure that the wheel nuts are tightened to the correct torque.
Remove foreign objects (e.g. stones) from the tyre treads.

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WARNING
Note that the following situation about tyres can cause
accidents or failures:
Damaged tyres.
Tyres with insufficient tread.
Tyres subjected to excessive loads.
Tyres that are not correctly inflated.
Terberg provides tyres to meet standard specifications. Depending on the application
and customer demands the actual tyre specification may vary from the standard. It is
the customer's responsibility to ensure that tyres meet the working requirements of
the tractor.
7.13 Tyre Pressure Monitoring System display, TPMS (optional)
This system helps maintain correct tyre pressures and detect slow punctures early.

CAUTION

TPMS is not a substitute for proper tyre maintenance. It is

the operator’s responsibility to maintain correct tyre
pressure, even if under-inflation has not been displayed on
the TPMS screen.

Activation
The TPMS will function whenever the ignition is placed in the ON position.
Use the navigation buttons on the Driver Information Module to navigate to Tire info.

Operation
The TPMS menu shows a top view of the vehicle and
displays all tyre related information.
By default the Truck menu will be displayed.
When a trailer is coupled with compatible TPMS
sensors the tyre information for the trailer can be
displayed.

example

Information and Notifications

The following information is available for tyres fitted with a TPMS sensor:
Press: Actual tyre pressure
Temp: Actual temperature of air inside the tyre
SoC: State of charge of the battery.
(This status will only become visible once the battery level is low.)

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Green border:
TPMS sensor is active and all conditions are correct.

Yellow border:
TPMS sensor is active and one or more conditions are outside
operating parameters.
A warning message will be shown on the main screen.

Red border:
TPMS sensor is active and one or more conditions are at a
critical level.
A warning message will be shown on the main screen.

NOTICE
• Depending on a change in the outside temperature, the low tyre
pressure warning light may illuminate even if the tyre pressure
has been adjusted properly.
Adjust the tyre pressure to the recommended pressure again
when the tyres are cold and reset the TPMS.

Settings
The unit used to displays tyre pressures in the DIM can be changed to:
 Psi
 Bar
See the Display Settings section earlier in this chapter for details
7.14 Tyre pressure and wheel load
Every tyre displays information concerning its permissible load (load index) and
speed (speed rating). The load index (e.g. 152/147) is a code for the maximum
permissible load at the speed indicated by the speed rating (e.g. letter K).
The first number in the load index indicates the index for single mounting, the second
for dual mounting.
The tyre pressure should normally be 8 - 10 bar at nominal carrying capacity,
depending on the tyre specification and load condition. However, many Terberg
tractor applications require a higher tyre pressure than nominal due to load
conditions.
Make sure that the tyre inflation meets the requirements as specified below. The
pressure for the tyre’s load index is shown on the tyre sidewall.
Speed rating (located on the tyre sidewall):

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Rating Speed
F 80km/h
G 90 km/h
J 100 km/h
K 110 km/h
L 120 km/h
M= 130 km/h

CAUTION
According to the ETRTO Standards Manual:
‘In any case, it is recommended to avoid the maximum
permissible load capacity if the resulting inflation pressure
is higher than 1000 kPa (10 bar)’.
In that situation, either the load must be reduced
accordingly, or the tyre and rim manufacturers must be
consulted.
The load carrying capacity of tyres in dual fitments is twice
the load carrying capacity in single up to 40 km/h.
Bonus loads will not be permitted for speeds of 40 km/h and
above if the wheel axles are rigidly fixed to the body of the
tractor."

The relationship between load index and the maximum permissible tyre load is
shown in the table below.

Load index and load per tyre in kg

Load Load Load Load Load Load
index kg index kg index kg
140 2500 160 4500 180 8000
141 2575 161 4625 181 8250
142 2650 162 4750 182 8500
143 2725 163 4875 183 8750
144 2800 164 5000 184 9000
145 2900 165 5150 185 9250
146 3000 166 5300 186 9500
147 3075 167 5450 187 9750
148 3150 168 5600 188 10000
149 3250 169 5800 189 10300
150 3350 170 6000 190 10600
151 3450 171 6150 191 10900
152 3550 172 6300 192 11200
153 3650 173 6500 193 11500
154 3750 174 6700 194 11800
155 3875 175 6900 195 12150
156 4000 176 7100 196 12500
157 4125 177 7300 197 12850
158 4250 178 7500 198 13200
159 4375 179 7750 199 13600

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For speeds lower than those indicated by the speed rating, the carrying capacity can
be multiplied by factor D*, shown in the table below.
The tyre pressure must also be multiplied by factor L* to compensate for the higher
carrying capacity, also shown in the following table.
When the wheel load exceeds the nominal rating, the tyre pressure must be
increased by factor L* in accordance with the following table.

Only valid for Speed rating*: F - G - J - K - L - M

Tractor Carrying capacity Air pressure
speed
D* L*
50 1.12 1.08
40 1.15 1.10
30 1.25 1.13
25 1.35 1.17
20 1.50 1.21
15 1.65 1.25
10 1.80 1.30
5 2.10 1.40
0 2.50 1.40
D* = carrying capacity multiplication factor.
L* = tyre pressure multiplication factor.

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8 Repair and maintenance

CAUTION

The maintenance in this manual is for a daily operation only. For

a more comprehensive service refer to the Terberg maintenance
manual.

8.1 Towing or pushing

If you need to tow or push a tractor,
always use a tow bar.
 The pin (1) in the front of the steel
bumper can be used to lock the tow–
push bar in place.
 Always lock the pin with the
spring-loaded R-clip (2).

 Before towing, always remove the

drive shaft of the towed vehicle, if
not, the gearbox of the tractor may
damage due to lack of lubrication.

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NOTICE
If you need to tow a tractor, always use a tow bar!
Before towing, always remove the drive shaft first (see above
image).
When the vehicle is being towed, there must always be a driver
in that vehicle.
If the engine in the towed vehicle is not running, there is no
power steering available.
The steering forces will be very high and the steering speed
consequently will be very low.

8.2 Cabin tilting

WARNING
Before tilting the cabin, make sure that no persons are
present in front, inside or under the cabin or on the tractor.
Ensure that there is adequate clearance above and in front
of the tractor before tilting.
If maintenance requires the cabin to be tilted halfway,
always use a strut for additional cabin support to maintain
safety.
Always install an additional strut under the cabin when it is
resting on the blocking pin.

Before tilting
Ensure that:
 All loose items in the cabin are removed or fixed, otherwise, the items can hit and
break the wind shield.
 There is enough room around the tractor for the cabin to be tilted.
 The seat is locked in one of its end positions if possible.
 The tractor is on horizontal and level ground.
 The engine is turned off.
 The parking brake is applied.
 The gear lever is in Neutral and locked.
 All additional locks that prevent the cabin from tilting are unlocked (optional).
 The ignition key is ‘on’ if electric power is required during maintenance.
 There are no persons or loose objects inside the cabin.
 The cabin door is closed properly.
 The windscreen washer reservoir is properly closed.

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Hydraulic pump rod

You need a pump rod to operate the hydraulic pump
manually.
This rod is stored inside the cabin, on the left side of the
driver’s seat.
 Remove the pump rod by gently pulling it from the two
metal clips (blue arrows).
 After usage, it is important that the pump rod is properly
placed back into its storage position.

Operating components

Pos.: Type: Description:

1 Switch Switch for electrical tilting of the cabin (optional).
2 Pump rod Rod to operate the hydraulic pump manually.
Electrical main switch for switching on and OFF electrical
3 Main switch
consumers.
Lever for change of direction when the cabin must be
tilted or lowered.
4 Lever
 To tilt: turn lever clockwise.
 To lower: turn lever anticlockwise.

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To tilt the cabin with the hydraulic hand pump

 Turn lever (1) on the hydraulic pump to the UP
position, 1/4 turn clockwise to the stop (arrow
UP).
 Use pump rod (2) to pump the cabin upwards
until it has reached its maximum tilt position.
 Secure the extra safety locking bar with a 6
mm retaining pin.

To return the cabin to its normal position

 Carefully remove the 6 mm retaining pin from the safety
locking bar and insert it in the storage position approximately
15 cm (6 inches) down the locking bar.
 Turn the lever on the hydraulic pump to the down position, 1/4
turn anti-clockwise to the stop (arrow DOWN).
 Carry out a final check to ensure that no loose objects have
been left under the cabin.
 Pump the cabin down to its lowest position. Keep pumping
until pump resistance is felt.
 Refit and secure the safety lock bolt.
 Return the cabin tilt bar to the storage position.
 The lever on the hydraulic pump must be turned in the DOWN
position when driving.

Mechanical hook
The movement of the tilting cabin is restricted by a mechanical hook under the cabin.
 The mechanical hook is hydraulically operated and due to the pressure build up
during the first stage of pumping, the lock will be released at a certain hydraulic oil
pressure before the cabin starts to tilt.
 When the cabin must be moved back, the lever (1) must be turned anticlockwise
to change the hydraulic oil stream.
 When the cabin is completely lowered in the driving position, it will automatically fit
into the cabin safety locking mechanism.

NOTICE

If the pressure in the cabin tilting system fails to increase after

pumping, there might be a problem with air in the system or the
lever for direction is not positioned correctly.

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Cabin safety lock

 Below the driver seat, under the cabin, there are two locks that keep the cabin in
place when the tractor is in operation. Whenever the cabin must be tilted, the two
locks must be unlocked first.
This will automatically proceed when the hydraulic pressure in the tilting circuit is
built up.
 Before the actual cabin tilting starts, the two locks will be hydraulically unlocked
first.
Attention:
Preferably tilt the cabin fully forward, the cabin is then in a safe position (it cannot fall
back).
 If for whatever reason a full tilt of the cabin is not desired, you can stop at any
time. The cabin is then however not in a safe position and needs to be supported.
In case any work needs to be done underneath the cabin/around the vehicle.
 When the cabin locks are not yet locked, the DIM will notice the driver by means
of a tell-tale warning. Whenever the cabin is tilted back, but not locked properly,
this tell-tale continues to alert the driver.

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To turn the cabin backward

 Move the lever anti-clockwise to the ‘down’ position (indicated
by an arrow pointing down).
 Carry out a final check to ensure that no loose objects (e.g.
tools) have been left under the cabin.
 Insert the pump rod into the hydraulic pump and operate the
pump until the cabin moves backward.
 Keep pumping until resistance is felt, (= cabin tilt cylinder fully
retracted).
 Leave the lever in the ‘DOWN’ position and store the tilt bar in
the cabin.

To tilt the cabin halfway

WARNING
Terberg strongly recommends that maintenance is carried
out only when the cabin is fully tilted forward. However,
some maintenance requires the cabin to be tilted halfway.
If maintenance requires the cabin to be tilted halfway,
always use a strut for additional cabin support to maintain
safety.
Method:
 Tilt the cabin manually as described earlier in this chapter.
 Take the blocking pin (1) from its storage location and insert it in
one of the holes to define the cabin's rest position. Secure the
blocking pin with a retaining clip.
 Tilt the cabin backwards until the weight rests on the blocking
pin. Do not increase the pressure in the system by pumping any
further.
 Place the intended safety bar between the cabin and the
chassis to prevent the cabin from falling back, see the
instruction stickers.
 Move the direction lever clockwise to the UP position.

To tilt the cabin backwards from a halfway position:

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To tilt and to lower the cabin electrically (optional)

The procedure of electrical cabin tilting and lowering is different from the manually
way of working.

WARNING

Always read and understand the paragraphs 8.2.1 & 8.2.2

before you tilt the cabin electrically.
Ensure the cabin is fully tilted before carrying out any work
underneath it.

NOTICE

 The electric/hydraulic tilt system works only

when the electrical main switch is set to the ON
position.

To tilt the cabin electrically

 Turn lever (1) in the lift direction,
clockwise.
 Press switch (2), the cabin starts
the tilt process.
To lower the cabin electrically
 Turn lever (1) in the down
direction, anti-clockwise.
 Press switch (2), the cabin will
lower.

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8.3 Tractor cleaning

Regular and correctly performed cleaning maintains the value of your tractor and
prevents corrosion and paint damage. Remember to wash more often in winter
conditions or other dirty driving conditions. Think about the environment and use
washing facilities that take care of waste from washing in an environmentally sound
manner. Use environmentally friendly cleaning agents as far as possible.
Wastewater from cleaning the tractor contains chemicals and pollutants that are bad
for the environment. Use a facility where the wastewater is collected.

WARNING
Do not wash the tractor if any electrical connectors in the
traction voltage system are not fully connected or if the
tractor is disassembled in any other way.
Make sure that the cover for the charging inlet is securely
fastened and that it fully covers the charging inlet before
you wash the tractor.

High pressure washing

Be careful when washing the tractor with a high-pressure washer. If water and dirt
penetrate into components it can cause damage over time.
Do not use a high-pressure washer to clean the following:
 Traction batteries.
 Components in the traction voltage system.
 Universal joint crosses.
 Support bearings.
 Sliding interfaces.
 Joints.
 Sealings.
 Connectors.
 Electrical components.
 Air inlets.
 Ventilation.
 Oil reservoirs.
Tyres and air suspension bellows can be cleaned with a high-pressure washer, but
do not use pulsating high pressure as it can damage them. The damage is not visible
but may eventually cause tyres or bellows to rupture.

NOTICE

Minimum distance between the high-pressure nozzle and the

washing surface:
 Approximately 100 cm with a round, concentrated jet.
 Approximately 50 cm with a flat, widespread jet.

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Cabin washing
The Tractor should be washed as soon as it is dirty. Especially in winter when road
salt and moisture can cause corrosion.
The following points must be observed to prevent paint damage and to achieve good
results when washing:
Washing procedure
Use a pressurised washer primarily. For dirt that cannot be removed using this
method, try to remove with a brush or sponge and cleaning agent of the type best
suited for the type of dirt. You risk scratching the paint using brush-washing without
high-pressure washing beforehand or by washing in brush washers that are poorly
maintained (worn, dirty brushes etc).
Washing detergent
Prevent using strong alkaline agents (pH >12). Rinse with plenty of cold water before
chemicals are applied if the temperature is above 30°C. Wash small areas and then
rinse clean so that long exposure times or drying chemicals is prevented.

WARNING
Do not wash the tractor if any electrical connectors in the
traction voltage system are not fully connected, or if the
tractor is disassembled in any other way.
Before you wash the tractor, make sure that the cover for
the charging inlet is securely fastened and that it fully
covers the charging inlet.
When washing the windscreen, ensure that the windscreen
wipers are switched off, otherwise there is a risk of fingers
being trapped by the wiper blades.
Never spray water directly onto the traction batteries or
other components in the traction voltage system.
Do not spray water directly onto sealings, gaskets or electric
equipment (such as cables or connectors) in the 24 V
system.

 Be careful with high-pressure cleaning of joints, axles and other moving parts
where water and dirt can enter.
 Prevent flushing away lubricant. If you notice that lubricant (grease) is washed
away, immediately re-lubricate the location.
 After washing the Tractor must be lubricated unless a central greasing system is
installed. Test the brakes immediately after washing.
Polish and wax
Over time the cabin paint may appear slightly worn out and may have lost the shining
appearance. This process can be slowed down to a minimum by regularly waxing the
cabin.
If the cabin paint deteriorates then use a mild form of polishing agent. Consider the
recommendations from the manufacturer of the products as well as the following
general rules.
First wash the Tractor in accordance with the above and allow it to dry. Then use a
polishing agent or deep cleaning agent with only a small amount of abrasive
components.

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Wax with a liquid wax. Only use clean cloths/rags, etc. Work over the paint surface
applying moderate pressure.
Interior care
To maintain the condition of the interior and a good work environment the inside of
the Tractor must be cleaned regularly.
A well-maintained interior also helps to maintain the value of the Tractor.
Remember that stains are always a lot easier to remove immediately, before they
have had time to dry out.

Washing upholstery
Textiles
First vacuum clean to remove loose dirt. Then use a foam cleaning agent to lift away
remaining dirt. Prevent scrubbing with hard brushes.
When all the textile surfaces are treated, let them dry overnight. Vacuum clean
thoroughly to remove the dry foam and remaining dirt.
For the seats, beds and textile mats, water and a synthetic washing agent can be
used. However, never use water or water-based cleaning agents on the headlining
and wall panels.
Vinyl
Water and a synthetic washing agent can be used.
Headlining and wall panels
Never use water or water-based cleaning agents.
Seat belt
Water and a synthetic washing agent can be used.
Floor mats and floor upholstery
Vacuum clean and brush clean. Wash with water occasionally, especially during the
winter.

Remove stains
Treat stains as quickly as possible because the longer the stain is untreated, the
more difficult it will be to remove it.
Textiles
Remove loose particles of stains. Pick up as much as possible with dry rags. Vacuum
clean around the stain so that dirt around the stain is not dissolved. Treat the stain
from the outside inwards towards the middle, with stain remover. Dry off parts of the
stain that are dissolved. Treat the stain again and dry off dissolved parts. Continue
until the whole stain is removed.
Be very careful with the amount of stain remover, to prevent the stain dissolving and
becoming larger.
Vinyl
Never scrape or rub. Never use strong solvents such as petrol, white spirit or alcohol.

Maintenance of steel rims

Steel rims are often exposed to different types of dirt such as road dirt, oil, asphalt,
tar and brake dust. To protect the rims from discolouration, oxidisation and
unnecessary wear, regular maintenance is required. For additional protection a

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protective wax must be used, e.g. when driving is slush, salted roads or
environments close to the sea.
 Damage to the rim's paint must be remedied immediately to prevent corrosion.
 Clean the rims regularly. First flush with water, preferably using a high-pressure
washer.
 Use a brush or sponge to clean the rim.
 For tough dirt, an alkaline cleaning agent (pH>7) may be used.
8.4 Changing wiper blades

8.5 Paintwork damage

Paint is an important part of the Tractor's rust protection and should therefore be
checked regularly for damage. Paint damage requires immediate treatment to
prevent corrosion. The most common types of paint damage, and the damage you
can repair yourself, include the following:
 Minor paint damage and scratches.
 Wear on e.g. wing edges and door thresholds.
NOTICE

 When touching up, the Tractor should be well cleaned and dry
and have a temperature above +15°C.

Touch up small paint damage

Tools and materials:
 Rust remover (cold phosphating agent) – tube or can.
 Undercoat – can.
 Spray paint or touch-up pen. The top of the pen contains abrasive paste for
aftertreatment.
 Penknife or similar.
 Brush
NOTICE

 If the damage has not reached to the underlying metal and a

damaged paint layer is still present, the paint can be applied
directly after light scraping to remove any dirt.

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Underlying metal damaged:

 Scrape off any rust or dirt, down to bare metal.
 Sandpaper the edges of the paint with sandpaper.
 Apply some sort of rust remover, wear Personal Protection Equipment (PPE).
 Stir the primer well and apply several coats using a fine brush.
 When the undercoat has dried, apply the topcoat with a brush.
 Make sure the paint is stirred well and apply several thin coats and allow to dry
between applications.
 Wait for a few hours, and then apply finishing treatment.

8.6 Electrical equipment

Set the main switch to the OFF position when you need to disconnect the electrical
system of the tractor.
Main switch
The main switch is located near the right front indicator
light. It is mandatory to use the main switch to connect or
disconnect the power supply to the rest of the tractor.
When the tractor is not in operation, turn the main switch
to the OFF position.

The engine will only start when the main switch is set to the ON position.
Note that the main switch is lockable in OFF position for safety reasons.

CAUTION
Never disconnect the battery terminals to disconnect electrical
power from the tractor.
If you set the main switch to the OFF position, the electrical
system will still partially contain electrical energy for
approximately 10 minutes!
Do not set the main switch to the OFF position when the engine
is running!

Emergency stop (optional)

The tractor can be equipped with an emergency switch to stop the engine and to
disconnect all electronics at once, in case of an emergency. This red switch can be
installed on different positions (for instance inside the cabin and/or under the step on
either side of the tractor).

The switch has a spring-loaded cover and is locked in the ON position. As soon as
the cover is opened the switch can be set to the OFF position manually.

If one of the switches is set to the OFF position the engine is stopped and all the
electronics are disconnected at once.

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When there is an emergency and it is important to disconnect all

the electrics and electronics, then:
1. Open the cover of one of the emergency switches manually.
2. Turn the switch to the OFF position manually (anti-clockwise
rotation).
3. The engine will stop and all the electrics and electronics will be
disconnected.

Make sure that the situation is safe before you set the switch to the ON position
again. Close the cover manually.

WARNING
Open the cover in case of an emergency only! As soon as
the switch is set to the OFF position all the electronics are
disconnected and the engine is stopped.
When any of the switches is activated, several fault codes
may be set.
Any ongoing cleaning processes of the exhaust system will
be stopped. This can cause future service issues.
Make sure that the situation is safe before you set the switch
to the ON position again.

Batteries
The batteries in the tractor are maintenance free and
for the driver a restricted area.
The only situation where the driver/operator is allowed
to touch the batteries, is in case of a jump start.

DANGER
Make sure to connect the positive terminal (+) of the
problem vehicle to the positive terminal (+) of the starter
vehicle first.
Then the negative terminal (-) of the problem vehicle can be
connected to the negative terminal (-) of the starter vehicle.
The negative (-) lead should always be disconnected first
and connected last, e.g. when changing a battery. This
avoids the risk of short circuits.

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WARNING
Explosive gases can be released from a battery during
charging.
Do not expose cell vents to an open flame (risk of
explosion).
Remove all the screw caps from batteries before charging.
Charge batteries in a well-ventilated area.
Batteries contain sulphuric acid. In the event of contact with
the skin or eyes, wash with copious amounts of water.
Danger: electrical voltage.

Fuses, relays and converter

Always replace a fuse or circuit breaker with one of the correct rating.

WARNING
Never fit a fuse with a higher rating.
If a fuse blows repeatedly, establish the cause before fitting
a new fuse.
Any faults should be identified and rectified before resetting
automatic (thermal) fuses.

The fuses are installed on the printed circuit board (PCB) that can be accessed from
the inside of the tractor, behind the service cover. The functions and ratings of the
fuses are listed below, including their position number on the PCB.
Fuses SF1 – SF12 are spares. The wiring diagram indicates whether they are used
and, if so, their purpose.
Other fuses that are not shown in this list can be found on the wiring diagram.

Fuses
Rating
Pos. Function
[A]
F1 5 Full beam light left.
F2 5 Full beam light right.
F3 5 Dipped beam light right.
F4 5 Dipped beam light left / Supp. sw. fog light rear.
LEFT - Parking light / Side Marker / License pl. Illum. / Pos. l. rear /
F5 10
Tail l. rear / Lighting tr. conn. / Lighting roof / Lighting spare.
RIGHT - Parking light / Side marker / Lighting Sw. / Dashboard Illum. /
F6 10
Pos. l. rear. / Tail l. rear / Lighting tr. conn. / Lighting roof.
F7 10 Reversing / Fog Light (KL15).
F8 15 Trailer connector (KL15).
F9 15 Wiper front (KL15).
F10 15 Wiper rear (KL15).
F11 10 X07 / Radio / Supp. sw. work l. rear (KL15).
F12 10 Upper dashboard/ Sw. Mirror Adj./Spare Switches (KL15).
F13 20 Electrical window (KL15).
F14 5 Heating control (KL15).
F15 20 Heating fan motor (KL15).
F16 2 ECU YTxx3 CC2 (KL30AR).
F17 2 ECU YTxx3 CC2 (KL30AR).
F18 15 ECU YTxx3 CC2 (KL30AR).
F19 10 Display (KL30AR).

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Rating
Pos. Function
[A]
F20 15 ECU YTxx3 CC2 (KL30AR).
F21 15 ECU YTxx3 CC2 (KL30AR).
F22 10 ECU YTxx3 CC2 (KL30AR).
F23 10 Engine (CPC / alternator Mercedes) (KL30AR).
F24 10 Transmission (KL30AR).
F25 5 Heat valve ECU / AC comp. (KL15).
F26 5 Sensor supply 2 (KL15).
Hazard sw. / Display / Air suspension / Differential lock /
F27 5
Combi switch / Switch lighting (KL15).
F28 5 Sensor supply 3 (KL15).
F29 5 Sensor supply 1 / Sensor Fuel Filter (KL15).
F30 5 Diagnostic (KL15).
F31 10 Engine (KL15).
F32 10 Transmission (KL15).
F34 15 Supply pomp unit SCR / Starting (KL30AR).
F35 15 Hose heating SCR (KL30AR).
F36 15 Supply sensors SCR (KL30AR).
F37 5 Supply switch hazard / Lighting / Ignition / Combi sw. (KL30).
F38 5 Diagnostic (KL30).
F39 10 Reverse / Work light / Horn (KL30).
F40 10 X07 / Interior light (KL30).
F41 15 D+ (KL30).
F42 10 Supply direction indicator trailer (KL30).
F43 1 Supply Voltage Reference 5V (KL15).
F44 15 Brake light (KL30).
F45 10 Working light(s) cabin (KL30).
F46 10 Beacon (KL30).
F47 30 Electrical Cab tilting (KL30).
SF1 max 15 Spare fuse 1 (KL15).
SF2 max 15 Spare fuse 2 (KL15).
SF3 max 15 Spare fuse 3 (KL15).
SF4 max 15 Spare fuse 4 (KL15).
SF5 max 15 Spare fuse 5 (KL15).
SF6 max 15 Spare fuse 6 (KL15).
SF7 max 15 Spare fuse 7 (KL15).
SF8 max 15 Spare fuse 8 (KL15).
SF9 max 15 Spare fuse 9 (KL15).
SF10 max 15 Spare fuse 10 (KL30).
SF11 max 15 Spare fuse 11 (KL30).
SF12 max 15 Spare fuse 12 (KL30).

Relays and converter

Pos. Function
K01 Relay D+.
K02 Relay motor cab tilting.
K03 Relay main supply KL15.
K04A Relay heating SCR hose 1.
K04B Relay heating SCR hose 2.
K04C Relay heating SCR hose 3.
K07 Relay beacon.
K09 Relay brake lights.
K10CF Relay working light(s) cabin front.
K10CR Relay working light(s) rear.
K11 Relay horn.

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Pos. Function
K12 Relay reversing lights.
K13 Relay full beam lights.
K16 Relay parking light(s) left.
K17 Relay parking light(s) right.
K18 Relay dipped beam lights.
K50 Relay spare.
K53 Relay fog light(s).
K54 Relay supply motor pump unit SCR.
K55DL Relay supply SCR sensors.
K55DR Relay direction indicator trailer left.
K56 Relay direction indicator trailer right.
K58 Relay air conditioning.
K62 Relay working light(s) / reversing light(s).
K63 Relay spare.
A29F Relay interval windscreen wiper front.
A29R Relay interval windscreen wiper rear.
A36 Flasher unit Temperature.
U08 Converter 5 V.

8.7 Headlamp
The exchange of a light bulb can be done by a driver. For other, more complex
repairs or replacements, the driver must contact the Terberg Service organization.

Light bulb replacement

Never touch the glass of a new light bulb with your bare hands as grease, acid, oil
and other impurities can vaporize due to heat from the lamp and can damage the
reflector.

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