SPIERINGS AT3 User manual

MANUAL SPIERINGS TRUCK AT3
AT3-EN-040930 verbeterde versie.docx
I
Preface
Dear user,
This operating manual provides the user of the Spierings folding crane with information concerning the crane's
construction and operation. You will find detailed technical specifications and maintenance instructions in the
maintenance part of this manual.
© Copyright Spierings Cranes.
All rights reserved.
No part of this publication may be reproduced or published, in any form or in any way, by print, photo print, microfilm or any other means without prior permission from the
manufacturer.

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II
Liability clause
SECTION 1. OPERATION
1.1 The Spierings truck may only be used for the purpose it was manufactured and designed for and only as
described in the user manual or in the additions to it.
1.2 Any use of the Spierings truck that differs from its design purpose or as described in the use manual or
the additions to it, will cause the product warranty and the manufacturer’s liability, for any direct or
indirect damage, to expire.
1.3 Only qualified, skilled personnel are allowed to operate the truck. The driver should have a special
driving license for driving heavy vehicles. The driver/operator must be in good physical and mental
health, so that he/she is able to carry out the work without restrictions and react with responsibility in all
given situations.
1.4 The driver/operator/user of the Spierings truck should be informed immediately of any additions/changes
to the user manual.
SECTION 2. SAFETY
2.1 For safety reasons the driver/operator/user should carry out all operations as stated in the user manual
or in the additions to it.
2.2 If more stringent safety demands are locally placed on the truck/crane than specified in the Spierings
truck user manual or additions to it, these more stringent requirements must be strictly complied with. If
not, all warranty will expire and the manufacturer will not be liable for any damage or costs.
2.3 The Spierings truck manufacturer points out explicitly, that the driver/operator/user and local personnel
should not enter the cranes/trucks danger zone. If, for any reason or cause, an unexpected situation
occurs during operation one should contact the technical department or Spierings Service department
first before proceeding.
SECTION 3. WARRANTY
3.1 It is prohibited to carry out modifications or welding to the Spierings truck without prior written permission
of the manufacturer of the Spierings truck.
3.2 Frequent maintenance and periodic checks should be carried out in accordance with the user manual, or
in the additions to it. If maintenance or checks are carried out otherwise, or less frequent, without prior
written permission of the manufacturer of the Spierings truck, all warranty will expire and any liability, for
direct or indirect damage, is explicitly excluded.

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III
Explanation of the symbols used
CAUTION!
Wear safety goggles!
Wear safety gloves!
Wear safety boots!
Wear head protection!
Use safety belt!
Check!
Manual action!
Automatic action!
Wrong!
Right!
Information!

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Index
PREFACE ................................................................................................................................................................ I
LIABILITY CLAUSE................................................................................................................................................ II
EXPLANATION OF THE SYMBOLS USED.......................................................................................................... III
INDEX ....................................................................................................................................................................IV
1. GENERAL DATA AT3.............................................................................................................................. 1-1
2. OPERATION............................................................................................................................................. 2-1
2.1. Get to know the truck .................................................................................................................. 2-1
2.2. Truck cabin.................................................................................................................................. 2-4
2.2.1. Getting in....................................................................................................................... 2-4
2.2.2. Doors............................................................................................................................. 2-4
2.2.3. Wing mirrors.................................................................................................................. 2-4
2.2.4. Seats ............................................................................................................................. 2-4
2.2.5. Safety belts.................................................................................................................... 2-4
2.2.6. Storage room................................................................................................................. 2-4
2.2.7. Sun blind ....................................................................................................................... 2-5
2.2.8. Fuse box........................................................................................................................ 2-5
2.2.9. Windscreen washer reservoir........................................................................................ 2-5
2.2.10. Battery charger remote control batteries ..................................................................... 2-5
2.2.11. Fire extinguisher.......................................................................................................... 2-5
2.3. Control panel............................................................................................................................... 2-6
2.4. Driving the Spierings crane....................................................................................................... 2-14
2.4.1. Starting........................................................................................................................ 2-15
2.4.2. Turning off the engine.................................................................................................. 2-15
2.5. Driving on the road.................................................................................................................... 2-15
2.6. Brakes....................................................................................................................................... 2-16
2.6.1. Operating brake........................................................................................................... 2-16
2.6.2. Parking brake .............................................................................................................. 2-16
2.6.3. Vacuum brake ............................................................................................................. 2-16
2.6.4. Braking with the retarder (optional).............................................................................. 2-17
2.7. Retarder/ESC/CC...................................................................................................................... 2-17
2.7.1. Retarder ...................................................................................................................... 2-17
2.7.2. The Bremsomat........................................................................................................... 2-18
2.7.3. Cruise control (CC)...................................................................................................... 2-18
2.7.4. Variable vehicle speed limit......................................................................................... 2-19
2.7.5. Speed control (ESC).................................................................................................... 2-19
2.8. Driving off the road.................................................................................................................... 2-20
2.8.1. All terrain mode transfer case...................................................................................... 2-20
2.8.2. Longitudinal differential lock ........................................................................................ 2-20
2.8.3. Transverse differential lock.......................................................................................... 2-21
2.9. Parking...................................................................................................................................... 2-21
2.10. Axle height adjustment.............................................................................................................. 2-22
2.10.1. Levelling (S)............................................................................................................... 2-22
2.10.2. Driving (T).................................................................................................................. 2-23
2.10.3. Suspension blocking (T)............................................................................................ 2-23
2.10.4. Off the road mode...................................................................................................... 2-23
2.11. Independent rear axle steering.................................................................................................. 2-23
2.12. Driving with erected tower......................................................................................................... 2-23

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2.13. Driving with a trailer................................................................................................................... 2-24
2.14. Towing the crane....................................................................................................................... 2-24
2.14.1. Towing when the diesel engine can still run .............................................................. 2-24
2.14.2. Towing when the diesel engine is out of order........................................................... 2-25
3. MAINTENANCE........................................................................................................................................ 3-1
3.1. General ....................................................................................................................................... 3-1
3.1.1. Clothing ......................................................................................................................... 3-1
3.1.2. Surroundings................................................................................................................. 3-1
3.1.3. Diesel engine................................................................................................................. 3-1
3.1.4. Moving parts.................................................................................................................. 3-1
3.1.5. Oils and coolant............................................................................................................. 3-2
3.1.6. Environment .................................................................................................................. 3-2
3.1.7. Refreshing oil/cooling system........................................................................................ 3-2
3.1.8. Fire-risk ......................................................................................................................... 3-2
3.1.9. Cleaning of components................................................................................................ 3-2
3.2. Maintenance plan AT3 truck........................................................................................................ 3-3
4. DIESEL ENGINE....................................................................................................................................... 4-1
4.1. Services in the first period of use................................................................................................ 4-1
4.2. Access to the diesel engine......................................................................................................... 4-2
4.3. Engine oil .................................................................................................................................... 4-2
4.3.1. Check oil level ............................................................................................................... 4-2
4.3.2. Fill up engine oil............................................................................................................. 4-3
4.3.3. Engine oil change.......................................................................................................... 4-3
4.4. Engine oil filter............................................................................................................................. 4-4
4.4.1. Oil filter replacement...................................................................................................... 4-4
4.5. Cooling system............................................................................................................................ 4-5
4.5.1. Check coolant level ....................................................................................................... 4-5
4.5.2. Fill up coolant ................................................................................................................ 4-6
4.5.3. Change coolant ............................................................................................................. 4-6
4.5.4. Anti-freeze..................................................................................................................... 4-7
4.5.5. Radiator and intercooler ................................................................................................ 4-7
4.6. Air inlet system............................................................................................................................ 4-8
4.6.1. Cleaning the air filter...................................................................................................... 4-8
4.6.2. Air cleaner cartridge replacement.................................................................................. 4-9
4.7. Fuel system................................................................................................................................. 4-9
4.7.1. Replace fuel filter........................................................................................................... 4-9
4.8. Fuel filter/water separator.......................................................................................................... 4-11
4.8.1. Drain the water separator............................................................................................ 4-11
4.8.2. Fuel filter/water separator replacement ....................................................................... 4-12
4.9. V-belts....................................................................................................................................... 4-12
4.9.1. V-belts inspection........................................................................................................ 4-12
4.9.2. V-belt adjustment......................................................................................................... 4-13
4.9.3. Gear belt check ........................................................................................................... 4-14
4.9.4. Gear belt adjustment................................................................................................... 4-15
4.10. Exhaust system......................................................................................................................... 4-15
4.11. Valve clearance check and adjustment..................................................................................... 4-16
5. DRIVE LINE.............................................................................................................................................. 5-1
5.1. Gearbox ...................................................................................................................................... 5-1
5.1.1. Maintenance gear box................................................................................................... 5-2
5.1.2. Check oil level of the gear box....................................................................................... 5-2
5.1.3. Gear box oil change ...................................................................................................... 5-3

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5.2. Transfer case.............................................................................................................................. 5-3
5.2.1. Maintenance transfer case ............................................................................................ 5-4
5.2.2. Check oil level transfer case.......................................................................................... 5-4
5.2.3. Transfer case oil change ............................................................................................... 5-5
5.3. Axles ........................................................................................................................................... 5-5
5.3.1. Maintenance axles......................................................................................................... 5-6
5.3.2. Check oil level differentials............................................................................................ 5-6
5.3.3. Differential oil change.................................................................................................... 5-7
5.3.4. Check oil level hubs....................................................................................................... 5-7
5.3.5. Hubs oil change............................................................................................................. 5-8
5.4. Tires............................................................................................................................................ 5-8
5.4.1. Maintenance tires.......................................................................................................... 5-8
5.4.2. Tire pressure ................................................................................................................. 5-8
5.5. Check the brake lining thickness................................................................................................. 5-9
5.5.1. Brakes ........................................................................................................................... 5-9
5.6. Clutch.......................................................................................................................................... 5-9
5.6.1. Checking the clutch....................................................................................................... 5-9
5.6.2. Venting the clutch........................................................................................................ 5-10
5.6.3. Clutch fluid change...................................................................................................... 5-11
6. STEERING SYSTEM................................................................................................................................ 6-1
6.1. Check the steering system.......................................................................................................... 6-2
6.2. Align the steering system............................................................................................................ 6-2
7. ELECTRICAL SYSTEM............................................................................................................................ 7-1
7.1. Lighting........................................................................................................................................ 7-1
7.2. Dashboard lighting ...................................................................................................................... 7-1
7.3. Batteries...................................................................................................................................... 7-2
7.3.1. Check the batteries........................................................................................................ 7-2
7.3.2. Recharging the batteries ............................................................................................... 7-2
7.3.3. Replacing batteries........................................................................................................ 7-3
8. HYDRAULIC SYSTEM ............................................................................................................................. 8-1
8.1. Check oil level hydraulic tank...................................................................................................... 8-1
8.2. Hydraulic oil change.................................................................................................................... 8-1
8.3. Hydraulic return filter change ...................................................................................................... 8-2
8.3.1. Hydraulic return filter ..................................................................................................... 8-2
8.4. Check the suspension’s accumulators ........................................................................................ 8-2
8.5. Hoses and connections hydraulic system ................................................................................... 8-3
9. PNEUMATIC SYSTEM ............................................................................................................................. 9-1
9.1. Primary system: brake system.................................................................................................... 9-1
9.2. Secondary system: accessories and gearbox............................................................................. 9-1
9.3. Air dryer....................................................................................................................................... 9-2
9.3.1. Air dryer filter change .................................................................................................... 9-2
9.4. Air vessels................................................................................................................................... 9-3
9.5. Air lubricator/water separator...................................................................................................... 9-3
9.5.1. Refill air lubricator.......................................................................................................... 9-4
9.5.2. Water separator............................................................................................................. 9-4
9.6. Check brake pressure................................................................................................................. 9-4
9.7. Hoses and connections pneumatic system................................................................................. 9-4
10. LUBRICATION........................................................................................................................................ 10-1

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10.1. Central lubrication system (Option)........................................................................................... 10-1
10.1.1. Timer central lubrication system................................................................................ 10-1
10.1.2. Grease reservoir central lubrication system .............................................................. 10-1
10.1.3. Greasing points central lubrication system................................................................ 10-2
10.2. Manual lubrication..................................................................................................................... 10-3
10.2.1. Outrigger beam cylinders .......................................................................................... 10-3
10.2.2. Driven axles............................................................................................................... 10-3
10.2.3. Cardan shafts............................................................................................................ 10-4
10.2.4. Steering system......................................................................................................... 10-4
11. VARIOUS................................................................................................................................................ 11-1
11.1. Window washer fluid ................................................................................................................. 11-1
11.2. Fire extinguisher........................................................................................................................ 11-1
12.TECHNICAL DATA................................................................................................................................. 12-1
13. ENCLOSURES ....................................................................................................................................... 13-1

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1. General data AT3
The AT3 carriage is especially designed for the Spierings SK377 folding crane. Extra attention is paid to a smooth
and comfortable transport to the work site. The crane is suited for driving on public roads, fully equipped with
counterweight and tools. The chassis is an especially rigid structure to create a good crane support.
In Picture 1-1 you will find the measurements of the SK377 with the AT3 carriage. The dimensions given are the
overall dimensions, axle bases and turning circle.
Picture 1-1
Measurements:
•Length: 13,5m
•Width: 2,6m
•Height: 4m
Drive unit:
•9.6 litres DAF diesel engine with turbo compressor and intercooler (type PE 265C).
•ZF gearbox with 16 gears forward and two gears reverse.
•STEYR high/low gear shift, transfer case, with high speed (road) and low speed (off the road) transmission.
•Three Ginaf axles, where axles one and three are driven.

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Steering:
•All axles are steered.
•Mechanically coupled steering, where axle three is steered in the opposite direction of axle one and two,
realizing a small turning circle.
•Hydraulically powered 2-circuit steering system.
•Fitted with an emergency steering pump, so when the main steering pump malfunctions, the truck remains
steerable until it is at a standstill.
•Provisions for driving off the road:
- axle height adjustable
- high/low gear shift transfer case can be put in low gear for driving off the road
- longitudinal and transverse differentials can be locked
•Electronic gas pedal "ESC” with speed control.
Suspension:
•Hydro-pneumatic suspension.
•The suspension can be blocked (e.g. when driving with erected tower).
Braking system:
•Pneumatic brakes with anti-blocking system (ABS)..
4 point outrigger system:
•Wide support base: 6,9m x 6,4m
•Narrow support base: 6,9m x 4,8m
Power supply:
When there is no separate diesel engine on the superstructure, the crane can be supplied with power in two
different ways:
•External construction power-supply 40 kVA during rigging up/rigging down, 40 kVA during operation.
•The truck built-in Leroy Somer 70 kVA generator for power supply to the crane when (sufficient) external
power is lacking.
Further data:
•Maximum speed limited to 85 km/h
•Minimum speed at 1000 rpm: 1,8 km/h (is 30 m/min)
•Truck weight including crane 36,000 kg
•The axle load is 12,000 kg per axle

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Identification numbers:
•Engine number: left-hand front on the engine block below the cylinder head rim.
•Vehicle identification number: on the identification plate in the co-driver's leg-room (see Picture 1-2) and
stamped in the right frame girder in front of the first axle (see Picture 1-3)
Picture 1-2
Picture 1-3

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2. Operation
2.1. Get to know the truck
Picture 2-1
1. Truck cab
Besides driving the crane, with the controls in the truck cab you can among other things support the crane on
outriggers and adjust the carriage axle height.
2. Spare tyre/sling box/pallet hook support/hullo clamp support (optional)
On this location you can install one of the following options:
•Spare tyre support. The spare tyre support is fitted with a winch and is mounted on a swing frame. When you
swing the frame out you can lower the spare tyre with the winch.
•Sling box
•Pallet hook support
•Hullo clamp support
3. Storage boxes
There are toolboxes on the left as well as on the right side of the carriage between the middle and rear axle.

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4. Storage box/power box
When the crane does not have a diesel superstructure engine, you will find the power-box on the right-hand side
of the carriage next to the fuel tank.
With the selector switch on the power-box, the power supply for the crane is selected. Either an external power
supply can be connected to this power box, or the built-in generator supplies the power. Power can also be
branched off for accessory equipment
5. Outriggers
At both sides of the truck there are 2 extending outrigger beams, and to each beam a hydraulically operated
outrigger (see Picture 2-2). These outriggers provide stability during hoisting operation. The outrigger beams have
an antiskid coating to prevent skidding. The outrigger pad holders can be used to facilitate stepping on the
outrigger beam.
With a separate (remote) control box the outriggers can be radio controlled. On the rear outrigger beams are
levels to check if the crane set-up is level.
Picture 2-2
6. Storage room support plates
To obtain a solid support base on a week ground, support plates can be used. Under the toolbox as well as under
the fuel tank there are 2 support plates each. (Or three in combination with steel support frames)
7. Toolbox at the rear (optional)
For extra storage room a toolbox can be mounted all along the rear of the truck.
8. Bumper
The crane has a standard bumper at the rear. When the bumper is folded up, the towing hook can be used (refer
“Driving with a trailer”).
9. Jib turning pipe
Through a hole in the deck you can reach the jib turning pipe. This pipe is used to swing the jib in front of the
tower during erecting and folding the crane.

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10. Work lamps
To the rear of the cab and truck are mounted work lamps, which can be
switched on/off from the cab.
By unscrewing the knob, the lamp support can be moved to the left and
right (see Picture 2-3).
Picture 2-3
11. Hydraulic tank/battery box
Underneath the engine cowling on this side of the truck is located
the hydraulic tank, (see Picture 2-4, 3) with filter (2), the air filter
(1), the air dryer (2) and batteries (5).
12. Fuel tank
The fuel tank’s capacity is 400 litres.
Picture 2-4
13. Truck ladder
To facilitate getting on the truck a ladder is mounted at the left-hand side of the
truck. Pick up the free end of the ladder so the pin comes out of the deck (see
Picture 2-5) and swing the ladder outside the frame. When swinging back the
ladder, make sure the pin returns in the hole.
Picture 2-5
14. Concrete bucket/brick gripper support (optional)
15. On the bumper a support can be mounted to carry a concrete bucket or a brick gripper.
16. Rear-/side view cameras (optional)
To broaden your view at the rear and right-hand side of the truck cameras can be installed. In the cab a monitor is
installed, showing the camera view.
Standard, the view of the side camera is shown. When putting the transmission in reverse, the monitor
automatically switches over to rear camera view.
17. Central lubrication system (optional)
This is the grease reservoir for the truck's optional central lubricating system.

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2.2. Truck cabin
In the truck cab you drive the crane safely and comfortably to its destination. This chapter makes you familiar with
the cab.
2.2.1. Getting in
Use the step under the door. Make use of the steering wheel to hold on to.
2.2.2. Doors
Turn the handle up to open the door from the inside. The door can only be locked up from the outside.
There is an ashtray on the inside of the door. After opening the ashtray, you push the locking device down to
remove the ashtray from the holder to empty it.
The windows can be electronically operated by means of the switches on the dashboard.
2.2.3. Wing mirrors
The wing mirrors may be adjusted by hand. Make sure the mirrors are adjusted before driving off, so that you
have satisfactory view. The mirror heating can be switched on with the switch on the control panel.
2.2.4. Seats
The cab has room for the driver and a co-driver. The driver's seat has pneumatic
suspension. The seats' position can be adjusted. This should only be done when
the vehicle stands still.
A) Back adjustment
B) Lumbar support adjustment (push = pumping up an pull = deflating)
C) Height adjustment (pulling the handle = up and pushing it = down)
D) Tipping the seat
E) Handle fast lowering
F) Adjustment seat
Picture 2-6
2.2.5. Safety belts
The seats are fitted with safety belts. Driver and co-driver must wear them when driving. Do not modify the belt or
its attachment by yourself. Regularly check its operation by jerking the belt from its winding mechanism. The belt
must lock when doing this. Have the locking device repaired or replaced when it does not function properly. When
the belt was heavily loaded during a collision, it must be completely replaced, even if it looks like there is nothing
wrong with it.
2.2.6. Storage room
In the middle of the cab ceiling is a storage compartment. It has a lockable lid at the driver's side and at the side
of the co-driver. There is another storage compartment at the co-driver's side in the dashboard.

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2.2.7. Sun blind
To prevent sunlight from blinding you, a sun blind is mounted above the windscreen for the driver and the co-
driver. Pull down the blind with the joggle in the middle of the blind. The blind will remain in the desired position.
Push the button on the side of the blind to roll it up.
2.2.8. Fuse box
The fuse box is at the co-driver's side in the centre console (Picture 2-7, A). You will find the fuses listed in the
enclosures.
2.2.9. Windscreen washer reservoir
(See Picture 2-7, C)
Central lubrication system (optional)
The central lubricating system controls are on the centre panel at the co-driver's side. It can be opened by means
of 2 clamps (Picture 2-7 B).
Picture 2-7
2.2.10.Battery charger remote control batteries
You will find the battery charger for the remote controls on the left under the
dashboard at the driver's side (Picture 2-8, D).
Every remote control comes with 2 batteries each. While the batteries are
charged, the indicator lamp lights. As soon as they are fully charged, the
lamp starts flashing.
Picture 2-8
2.2.11.Fire extinguisher
One fire extinguisher is behind the co-driver's seat. On the right behind the control box in the crane cab is the
second fire extinguisher.
The fire extinguishers must be inspected every year by the authorities.
B
C
A

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2.3. Control panel
Picture 2-9
1a Indicator lamp steering pressure circuit
1
1b Indicator lamp parking brake
2a Indicator lamp steering pressure circuit
2
2b Indicator lamp coolant level
3 Indicator lamp ABS
4 Indicator lamp retarder on (optional)
5a ESC malfunction diagnosis switch
5b Indicator lamp breaking sensor middle
position
6 Not in use
7 Light switch, off/parking light/dipped
beam
8 Dimmer dashboard lighting
9 Switch work lamps
10 Switch mirror heating
11 Switch rotaflare
12 Switch fog tail-light
13 Switch axles up/down
14 Switch axles 1 and 2 up/down
15 Switch axle 3 rear left-hand side
up/down
16 Switch axle 3 rear right-hand side
up/down
17 Switch/indicator lamp leveling
18 Switch driving/blocking
19a Indicator lamp off the road mode
19b Indicator lamp blocking
20 Indicator lamp max. pressure outrigger-
/suspension system
21 Not in use
22 Switch outrigger beam front left-hand
side retract/extend
23 Switch outrigger front left-hand side
retract/extend
24 Switch outrigger beam rear left-hand
side retract/extend
25 Switch outrigger rear left-hand side
retract/extend
26 Switch outrigger front right-hand side
retract/extend
27 Switch outrigger beam front right-hand
side retract/extend
28 Switch outrigger rear right-hand side
retract/extend
29 Switch outrigger beam rear right-hand
side retract/extend
30 Switch outrigger controls on/off
31 Reservoir clutch fluid
32 Ignition lock
33 Cruise control
34 Voltmeter batteries
35 Oil-pressure gauge (lubrication circuit)
37 Lever parking brake
38 Tachograph, speedometer, mileage
counter, clock
39 Revolution counter, hour counter
40 Fuel gauge
41 Coolant temperature gauge
42 Air-pressure gauge circuit 2
43 Air-pressure gauge circuit 1
44 Oil temperature gauge retarder
(optional)
45 Radio
46 Gauge pump pressure steering system
47 Indicator lamp oil temperature WSK
(optional)
48 Switch/indicator lamp transverse
differential lock axle 2 and 3
49 Indicator lamp transverse differential
lock axle 2 and 3
50 Not in use
51 Switch/indicator lamp longitudinal
differential lock
52 Indicator lamp longitudinal differential
lock
53 Control heater/fan
54 Switch alarm light
55 Switch cab lighting on the left
56 Switch cab lighting on the right
57 Indicator lamp high/low gear shift
58 Indicator lamp PTO
59 Switch PTO
60 Monitor reverse-/side camera (optional)
61 Battery switch
62 Switch position high/low gear shift,
high/low, PTO on/off
64 Frequency meter generator
65 Voltmeter generator
66 230 V socket
67 Vacuum brake/engine stop
68 Switch for blinker, windscreen wiper,
horn, signal, full beam headlamp
69 Clutch pedal
70 Brake pedal
71 Accelerator pedal
72 Lever range selector with splitter
75 Cigarette lighter/24V-connection
76 Indicator lamp charging voltage
batteries
77 Indicator lamp blinker
78 Indicator lamp air-pressure
79 Indicator lamp full beam headlight
80 Indicator lamp oil pressure
(transmission oil)
81 Indicator lamp air cleaner
82 Indicator lamp flame starting system
83 Control electrical window (left-hand)
84 Switch aeronautical warning light on jib
and tower (optional)
85 Control electrical window (right-hand)

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1. A) Indicator lamp steering pressure circuit 1
This Lamp lights up as soon as the oil pressure in steering circuit 1 is too low. Have the malfunction
repaired as soon as possible. If this lamp lights together with lamp 2a: STOP IMMEDIATELY!
1. B) Indicator lamp parking brake
As long as the parking brake is engaged, this lamp is on (when starting the engine the parking
brake remains engaged as long as the air-pressure is below 5,5 bar)
2. A) Indicator lamp steering pressure circuit 2
This lamp lights up as soon as the oil pressure in steering circuit 2 is too low. Have the malfunction
repaired as soon as possible. If this lamp lights together with lamp 1a: STOP IMMEDIATELY! When
the vehicle stands still, this lamp will light.
2. B) Indicator lamp coolant level
This lamp lights up as soon as the coolant level is too low. Replenish coolant.
3. Indicator lamp ABS
This lamp is on when operating the ignition and remains on until a driving speed of 7 km/h is
reached. From 7 km/h it goes out and will only light up in case of a malfunction. At first, push and
release the switch to reset the system. If this doesn’t resolve the problem, have the malfunction
repaired as soon as possible.
5. A) EngineSpeedControl diagnosis lamp
When this lamp blinks: Stop the vehicle and shut down the engine to prevent damage on the
vehicle and/or engine.
When this lamp lights continuously: There is a malfunction. Some functions will not operate
correctly. Have the malfunction repaired as soon as possible.
7. Light switch
By pressing this switch halfway, the parking lights are switched on. By pressing the switch all the
way, the dipped beams are switched on
8. Dimmer dashboard lighting
When switching on the vehicle lighting also the dashboard lighting goes on. With this dimmer you
can change the dashboard lighting intensity.
9. Work lamps
At the rear of the cab and truck are 2 work lamps each. With this switch the 4 work lamps are
switched on and off.
10. Mirror heating
With this switch the mirror heating in the left en right wing mirror is switched on and off.
11. Rotating beacon
With this switch the rotating beacons can be switched on and off.

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12. Fog tail-light
With this switch the fog tail-light on the cab can be switched on and off.
Axle height adjustment
ALL
AXLES
13. Switch all axles up/down
With this switch the cylinders of all axles are moved in and out simultaneously (e.g. when
supporting the crane on outriggers).
AXLES
1-2
14. Switch axles 1 and 2 up/down
With this switch the cylinders of axles one and two can be moved in and out.
LEFT
3
15. Switch axle 3 left up/down
With this switch the cylinder on the left side of the third axle can be moved in and out.
RIGHT
3
16. Switch axle 3 right up/down
With this switch the cylinder on the right side of the third axle can be moved in and out.
17. Switch/indicator lamp levelling
18. Switch/indicator lamp driving/blocking.
20. Indicator lamp max. pressure outrigger-/suspension system.
This lamp goes on and a buzzer sounds at the rear outriggers as soon as the pressure in the
outrigger/suspension system becomes too high. This may happen when the outriggers, the axles or
the outrigger beams are fully in or out, or because there is an obstacle in the way when extending
the outrigger beams.
During leveling operation and when moving the axles up or down, this light could also go on. This
does not present a problem

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Outrigger operation (on the dashboard from left to right)
22. Switch outrigger beam front left hand side retract/extend.
23. Switch outrigger front left hand side retract/extend.
24. Switch outrigger beam rear left hand side retract/extend.
25. Switch outrigger rear left hand side retract/extend.
26. Switch outrigger front right hand side retract/extend.
27. Switch outrigger beam front right hand side retract/extend.
28. Switch outrigger rear right hand side retract/extend.
29. Switch outrigger beam rear right hand side retract/extend.
30. Switch outrigger controls on/off.
Switch off the outrigger controls when the outriggers are not operated or when the crane is rigged
up/rigged down or in operation. The remote control is also de-activated. Failing to switch off the
controls means the crane can not be set to the full hoisting program (full support base)
32. Ignition lock
By turning the key to the right, three positions are possible, from left to right:
0 = off
1 = contact
2 = starting
33. Rpm/speed control
Up to a driving speed of 9 km/h the rpm can be controlled by this lever. Over 25 km/h the speed
control can be switched on.
34. Voltmeter batteries
On this meter you can read the battery condition. The meter must be in the middle (approx. 24 Volt)
35. Oil pressure gauge lubrication circuit.
When starting this gauge will read approx. 5 bar. As soon as the oil is warm approx. 3 bar.