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MANUAL SPIERINGS TRUCK AT3 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.
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.
MANUAL SPIERINGS TRUCK AT3 Index PREFACE ................................I LIABILITY CLAUSE ..............................II EXPLANATION OF THE SYMBOLS USED ......................III INDEX ..................................IV GENERAL DATA AT3 ..........................1-1 OPERATION ............................. 2-1 2.1. Get to know the truck ........................2-1 2.2. Truck cabin ..........................2-4 2.2.1.
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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 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.
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MANUAL SPIERINGS TRUCK AT3 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.
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MANUAL SPIERINGS TRUCK AT3 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.
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.
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MANUAL SPIERINGS TRUCK AT3 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. •...
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MANUAL SPIERINGS TRUCK AT3 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)
MANUAL SPIERINGS TRUCK AT3 2. Operation 2.1. Get to know the truck Picture 2-1 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.
MANUAL SPIERINGS TRUCK AT3 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.
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MANUAL SPIERINGS TRUCK AT3 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).
MANUAL SPIERINGS TRUCK AT3 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.
MANUAL SPIERINGS TRUCK AT3 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.
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MANUAL SPIERINGS TRUCK AT3 A) Indicator lamp steering pressure circuit 1 This amp 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!
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MANUAL SPIERINGS TRUCK AT3 12. Fog tail-light With this switch the fog tail-light on the cab can be switched on and off. Axle height adjustment 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).
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MANUAL SPIERINGS TRUCK AT3 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.
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MANUAL SPIERINGS TRUCK AT3 37. Lever parking brake By pulling this lever backwards the parking brake is engaged. Pulling out the knob and pushing the lever forwards will release the parking brake. 38. Speedometer/tachograph The truck is equipped with a VDO tachograph. On this device you can read the driving speed and the number of kilometres driven.
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MANUAL SPIERINGS TRUCK AT3 42. Air pressure gauge circuit 2 It indicates the air-pressure in brake circuit 2. When the pressure is below 5.5 bar, indicator lamp 78 will light up. The crane must not be driven. 43. Air pressure gauge circuit 1 It indicates the air-pressure in brake circuit 1.
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MANUAL SPIERINGS TRUCK AT3 60. Selector switch gear shift high/low, PTO on/off With this switch the off-the-road (Low) or on-the-road (High) gear can be selected. This is indicated by indicator lamp 57. With this switch and switch 59 the PTO is switched on. Indicator lamp 58 indicates when the PTO is switched on.
MANUAL SPIERINGS TRUCK AT3 76. Warning lamp charging voltage batteries If the charging voltage of the batteries is too low, this indicator lamp will go on. 78. Warning lamp air pressure If the air-pressure in brake circuit 1 or 2 is below 5.5 bar, this indicator lamp will go on. The crane must not be driven.
MANUAL SPIERINGS TRUCK AT3 2.4.1. Starting CAUTION! Do not run the diesel engine in closed or unventilated rooms. There is a high risk of suffocation. Before starting the engine, the transmission must be put in neutral and the parking brake must be engaged.
MANUAL SPIERINGS TRUCK AT3 Caution! While gearing down from high to low range, the driving speed must be below 30 km/h! 2.6. Brakes The crane is equipped with four braking systems: • Operating brake • Parking brake • Vacuum brake •...
MANUAL SPIERINGS TRUCK AT3 2.6.4. Braking with the retarder (optional) For slowing down when driving at high speed or on long stretches down-hill, the use of the retarder is profitable. Sparing the operating brake, the operating brake is fully available when it is really needed. The retarder is activated with the control lever on the control panel.
MANUAL SPIERINGS TRUCK AT3 By moving the lever backward (direction A) the retarder can be set in three positions: Approx. 33% of the maximum brake torque Approx. 66% of the maximum brake torque maximum brake torque Move the lever to its start position to switch off the retarder option.
MANUAL SPIERINGS TRUCK AT3 2.7.4. Variable vehicle speed limit De variable vehicle speed limit gives the opportunity to set the vehicle speed to a desired speed limit. The variable vehicle speed limit only works when the travel speed is over 30 km/h.
MANUAL SPIERINGS TRUCK AT3 2.8. Driving off the road The truck driver must observe the same rules as for driving a crane on the public roads or the locally applicable rules at all times. 2.8.1. All terrain mode transfer case When you have to drive off the road or at low speed (e.g.
MANUAL SPIERINGS TRUCK AT3 2.8.3. Transverse differential lock If after engaging the longitudinal differential lock there is still too little traction, also the differentials in the axles may be locked. Operate the button "transverse lock". To keep the transverse differential lock engaged, the button must be pressed.
MANUAL SPIERINGS TRUCK AT3 2.10. Axle height adjustment The axles are connected to the chassis by means of hydraulic cylinders. Each cylinder is provided with a accumulator, so that the axles can compress. The suspension system can be controlled from the truck cab (Picture 2-15).
Move the cylinders of all axles out. The cylinders will not go out all the way, so that some room to move remains. • Release the suspension to re-activate the suspension. 2.11. Independent rear axle steering Independent rear axle steering is not installed on the AT3 truck. 2.12. Driving with erected tower See crane manual. 2-23 AT3-EN-040930 verbeterde versie.docx...
Picture 2-16 2.14. Towing the crane Please always consult Spierings Cranes before towing the crane. 2.14.1. Towing when the diesel engine can still run When the crane must be towed and the diesel engine can still run, you have to proceed as follows: •...
MANUAL SPIERINGS TRUCK AT3 2.14.2. Towing when the diesel engine is out of order If the diesel engine is out of order you may proceed in the same way as with a running diesel engine. However, there are a number of additional problems: •...
MANUAL SPIERINGS TRUCK AT3 3. Maintenance For “normal working conditions” we have in view: • A working-week of 5 day’s/40 hours • 15.000 – 20.000km/year • Surroundings temperature: -15 - 40°C (5 – 104F) All specifications concerning oil and filters can be found in chapter “Technical data”.
MANUAL SPIERINGS TRUCK AT3 3.1.5. Oils and coolant Various kinds of oil, lubrications, coolant, window washer fluid, battery acid and diesel oil can be harmful to your health when touched. Avoid any physical contact with these substances. 3.1.6. Environment In order to reduce environmental pollution to a minimum we advice you to comply with the following rules: •...
4-5 months after delivery Spierings 4-month maintenance service (also meant for the crane). This maintenance service is meant for the diesel engine of the truck and for the entire drive line. Ask Spierings Cranes for the possibilities of this service.
MANUAL SPIERINGS TRUCK AT3 4.2. Access to the diesel engine To gain access to the diesel engine, different cover plates can be removed. The cover plates on top of the engine cowling also can be removed. However, the tower should be in a vertical position.
Make sure the crane stands on a horizontally flat base. Unscrew the red filler cap (2). (Picture 4-3) Always fill up the engine oil of the same brand and type. (In doubt consult Spierings Cranes) Check the oil level with the dipstick. (4.3.1 Check oil level) 4.3.3.
MANUAL SPIERINGS TRUCK AT3 4.4. Engine oil filter 4.4.1. Oil filter replacement Replace the oil filter after every 15.000km or during the yearly maintenance service at normal working conditions. Always replace the oil filter by a new one. Put a trough under the oil filter and unscrew the old filter counter clockwise using a filter wrench.
MANUAL SPIERINGS TRUCK AT3 4.5. Cooling system Check every two months for leakages from hoses, tubes, connections and for damage on the radiator, intercooler and fan. The DAF diesel engine is water cooled. The radiator and intercooler are both beneath a folding cover on top the cabin.
MANUAL SPIERINGS TRUCK AT3 4.5.2. Fill up coolant Do not add cold coolant to a hot engine. Is this by a particular circumstance inevitable, add the fluid slowly with a running engine. Coolant is harmful for your health. Protect your eyes and skin.
MANUAL SPIERINGS TRUCK AT3 Reinstall all drain plugs. Picture 4-10 Fill the cooling system with coolant. (4.5.2 Fill up coolant) 4.5.4. Anti-freeze Check the anti-frost concentration every year before winter season. We advise to check the coolants anti-frost concentration before every winter season.
MANUAL SPIERINGS TRUCK AT3 4.6. Air inlet system Check the air inlet system every two months for leakages and damage. 4.6.1. Cleaning the air filter Clean the air filter every week at normal working conditions. When the air filter cartridge and sealing ring is damaged, renew the cartridge.
MANUAL SPIERINGS TRUCK AT3 4.6.2. Air cleaner cartridge replacement Replace the air cleaner cartridge every year under normal operating conditions. Make sure the engine is not running. Open the right side plate of the engine cowling. Release the clips (1) at the side of the air cleaner lid (2) and remove the lid. (Picture 4-11) Remove the filter cartridge (3) from the housing (4).
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MANUAL SPIERINGS TRUCK AT3 Make sure the engine is not running. Unscrew the cap (1) from the filter housing (2) and take the cap together with the filter element (3) from the filter housing (see Picture 4-14). Remove the filter element from the cap.
MANUAL SPIERINGS TRUCK AT3 4.8. Fuel filter/water separator The fuel filter/water separator can be found on the right side of the truck behind axle 2. (See Picture 4-15) This filter is the fuel system pre-filter. Picture 4-15 4.8.1. Drain the water separator Drain the water separator every week.
MANUAL SPIERINGS TRUCK AT3 4.8.2. Fuel filter/water separator replacement Replace the filter in the water separator during the annual maintenance under normal operating conditions. Put the tower in vertical position and switch off the engine. Place a trough under the filter.
MANUAL SPIERINGS TRUCK AT3 Table 4-1 V-belt tension "12,5mm" V-belts in Newton (N) multiple V-belt single V-belt encased open flank encased open flank New V-belt Adjustment tension 1200 Check tension >600 >800 >300 >400 Worn in V-belt Lowest tension Correction tension Encased V-belts can be recognized by the textile fabric present in the rubber, at the inside as well as at the V-belt flanks.
MANUAL SPIERINGS TRUCK AT3 4.9.3. Gear belt check Check the gear belt during the annual maintenance or every 15.000 operating hours under normal operating conditions. The hydraulic steering pump of steering circuit 1 is mounted on the right hand side on the PE engine. This pump is driven by means of a gear belt.
MANUAL SPIERINGS TRUCK AT3 4.9.4. Gear belt adjustment Warning! Never tighten gear belts during adjustment. The pump can be damaged this way. Loosen the locknut on the spindle (4, Picture 4-21). Re-adjust the hydraulic pump (2) with the pulley (3) using the adjustment nut on the spindle.
MANUAL SPIERINGS TRUCK AT3 4.11. Valve clearance check and adjustment Check the valve clearance and adjust if necessary during the annual maintenance. When opening the engine or parts of the engine dirt can enter the system, which could cause serious damage to the engine. Clean the engine before opening it.
MANUAL SPIERINGS TRUCK AT3 5. Drive line Picture 5-1 shows the drive line of the AT3 truck. Picture 5-1 Diesel engine Clutch and gearbox High/low transfer case Generator (Not present when a superstructure diesel engine is mounted.) 5.1. Gearbox The ZF 16S-151 gearbox, installed in the AT3,...
MANUAL SPIERINGS TRUCK AT3 5.1.1. Maintenance gear box Check the gearbox every two months for external leakages and filth on the breather. Make sure no water penetrates through the breather by using a high pressure cleaner. This could cause serious damage to the gear box.
MANUAL SPIERINGS TRUCK AT3 5.1.3. Gear box oil change Change the gear box oil every year during the yearly maintenance service at normal working conditions. Caution! The gear box and oil are hot after driving the truck for a while.
MANUAL SPIERINGS TRUCK AT3 5.2.1. Maintenance transfer case Check the transfer case every two months for leakages and filth on the breather. Make sure no water penetrates through the breather by using a high pressure cleaner. This could cause serious damage to the transfer case.
MANUAL SPIERINGS TRUCK AT3 5.2.3. Transfer case oil change Change the oil of the transfer case every year during the yearly maintenance service at normal working conditions. Caution! The transfer case and oil are hot after driving the truck for a while.
MANUAL SPIERINGS TRUCK AT3 5.3.1. Maintenance axles Check the hubs and differentials of axle 1, 2 and 3 every two months for leakages and filth on the breathers. Make sure no water penetrates through the breathers by using a high pressure cleaner.
MANUAL SPIERINGS TRUCK AT3 5.3.3. Differential oil change Change the oil in the differentials every year during the yearly maintenance service at normal working conditions. Caution! The differentials and oil are hot after driving the truck for a while. Make sure the truck stands on a horizontally flat base.
MANUAL SPIERINGS TRUCK AT3 5.3.5. Hubs oil change Change the oil of the hubs every year during the yearly maintenance service at normal working conditions. Caution! The hubs and oil are hot after driving the truck for a while. Make sure the truck stands on a horizontally flat base.
MANUAL SPIERINGS TRUCK AT3 5.5. Check the brake lining thickness Check the brake lining thickness every year during the yearly maintenance service at normal working conditions. To check the brake lining thickness, remove the synthetic sealing caps at the rear of the brake drums (see Picture 5-9).
MANUAL SPIERINGS TRUCK AT3 5.6.2. Venting the clutch Caution! During venting the clutch fluid level must stay above the minimum level. Picture 5-10 Be sure the engine is turned off. Vent the 10 litre accessories tank. Person 1: Press the clutch pedal for 2/3. (Picture...
MANUAL SPIERINGS TRUCK AT3 5.6.3. Clutch fluid change Change the clutch fluid every two years at normal working conditions. Be sure the engine is turned off. Vent the 10 litre accessories tank. Place a drainage hose onto the vent nipple (B, Picture 5-11) of the cylinder (3). (Beneath the clutch housing) Open the nipple by turning it half a stroke.
C) Steering arms D) Hydraulic auxiliary cylinders E) Emergency cylinder The AT3 steering system steers all three axles, whereas axles 1 and 2 are steered in opposite direction, to create a smaller turning circle. Picture 6-1 shows how the steering is constructed.
6.2. Align the steering system To prevent excessive tire wear, align the steering system every year during the maintenance service. All play in the steering system must be checked before aligning it. Please contact Spierings Kranen for instructions. AT3-EN-040930 verbeterde versie.docx...
MANUAL SPIERINGS TRUCK AT3 7. Electrical system The on-board voltage is 24 volt. It is supplied by two 12 volt/165Ah batteries, series connected. They are charges by a 24V alternator with a maximum charging current of 35A. With the battery switch next to the battery box, the truck’s electrical circuit can be cut off. It must be done in case of welding jobs and when the crane is parked for a longer period of time.
MANUAL SPIERINGS TRUCK AT3 7.3. Batteries 7.3.1. Check the batteries Check the batteries of the truck every two months. Caution! Battery acid is harmful for human and environment. Be very careful with it! The batteries must be checked on the following points: •...
MANUAL SPIERINGS TRUCK AT3 7.3.3. Replacing batteries We advise to replace the batteries when the engine will start difficulty. (The batteries must be fully recharged.) Use new batteries with the same brand and dimensions. Be sure the engine is not running. (Remove the ignition key from the ignition slot) Remove the left engine compartment cover.
(2). Picture 8-1 Always use hydraulic oil of the same brand and type. (Consult Spierings Cranes in case of doubt) 8.2. Hydraulic oil change Change the hydraulic oil every 5 years after analysis. First analyze an oil sample before changing the oil. When oil change is necessary all hydraulic cylinders (including the suspension cylinders) must be retracted.
Check the suspension’s accumulators every year during the yearly maintenance service at normal working conditions. The suspension system of the AT3 has six accumulators. All are mounted on the hydraulic suspension cylinders of every axle. You need a special tool of HYDAC to check the accumulators.
MANUAL SPIERINGS TRUCK AT3 8.5. Hoses and connections hydraulic system Check all the components of the hydraulic system for leakages and damages every two months. All hoses, connections, hydraulic blocks, filters, cylinders and oil tank must be checked regularly for damages and leakages.
MANUAL SPIERINGS TRUCK AT3 9. Pneumatic system The pneumatic system consists of a primary system and a secondary system. • The primary system is for the brakes of the truck (approx. 9,8 bar) • The secondary system is for the accessories (approx. 7 bar) A compressor mounted on the engine delivers the air pressure.
MANUAL SPIERINGS TRUCK AT3 9.4. Air vessels Check the air vessels every week for the presence of condensate water. Check the air vessels for condensate water by pulling or pushing the drainage valve mounted underneath the vessels. When there is regularly condensate water found, change the air dryer filter. (See 9.3.1 Air dryer filter...
MANUAL SPIERINGS TRUCK AT3 9.5.1. Refill air lubricator Make sure the diesel engine is not running. Unscrew the bowl (5) and top up with oil. Reinstall the bowl with oil. Eventually adjust the amount of lubrication by means of the control crew (4) 9.5.2.
MANUAL SPIERINGS TRUCK AT3 Lubrication 10.1. Central lubrication system (Option) Check all the lubrication points of the central lubrication system every 2 months. Also check the grease reservoir for sufficient grease. Joints, hinges and bearings must be lubricated regularly. A central (automatic) lubrication system is therefore used.
MANUAL SPIERINGS TRUCK AT3 10.2. Manual lubrication The grease interval for all manual greasing points is 2 monthly. When not chosen for the central lubrication option, the lubrication points mentioned in chapter 10 should be manual lubricated too. Use a grease gun with EP2 grease for manual lubrication.
MANUAL SPIERINGS TRUCK AT3 Various 11.1. Window washer fluid Check the window washer fluid level every week. 11.2. Fire extinguisher The fire extinguisher must be inspected every year by an acknowledged instance. 11-1 AT3-EN-040930 verbeterde versie.docx...
MANUAL SPIERINGS TRUCK AT3 Technical data Diesel engine Spierings nr. Engine oil SAE 15W40 ACEA E4-98 Oil filter DAF nr. 1397764 SERV01150060 V-belt water pump-, fan- and DAF nr. 1398637 2380 Lb 2Z alternator drive V-belt tension measuring tool single- Krikit I (DAF nr.
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