Every 1000 hours work

22. ENGINE VALVES -

Valve clearance check (cold engine)

Have the valve clearance checked by specialized personnel. The valve clearance adjustment must be performed with cold engine or, in any case, at a temperature lower than 60 °C (140 °F).

Valve clearance -Intake ....................................................0.25 mm -Exhaust .................................................0.50 mm

A

B

C

D150-2M112

A. Feeler gauge - B. Clearance adjustment screw C. Wrench 14 mm (0.55 in).

Lock the nut to a torque of 24 Nm (17.70 ft lbs) and recheck the valve clearance.

23. BEVEL GEAR - STEERING AND BRAKES -

Change oil and wash suction filter

Oil draining

Place a container with at least 65-70 lit (17 - 18 1/2 US Gal) capacity under the transmission housing. Remove plugs A and let the oil drain completely. Retighten the plugs after cleaning them properly.

A Cleaning the suction filter and magnetic rod

Tilt the cab and loosen nut 1 to remove mesh filter 4 and magnetic rod 5. Wash both of them with solvent. Clean the container inside.

WARNING Do not use gasoline or any flammable fluid to clean parts. Use approved, non flammable, non toxic commercial solvents only. Wear safety glasses with side shields when using compressed air to clean parts, so as to reduce the danger of personal injuries caused by flying particles. Limit the pressure to 2 bar (29 p.s.i.), in accordance with local or national regulations.

1 2

3 4

5

F

Reinstall the filter, the magnetic rod and the cover. Check and top-off the oil level after changing it.

1850-2M0134

F. Transmission/torque converter suction filter - 1. Nut 2. Cover - 3. Gasket - 4. Mesh filter - 5. Magnetic rod.

1850-2M0133

Oil filling

Refill with oil up to the prescribed level, indicated by the mark etched on dipstick A. Start the engine and let it run at about 1000 rpm. Actuate the steering a few times. Stop the engine and after a few minutes check that the oil level reaches the upper mark on the dipstick. Top-off, as required, through the plug hole.

Dipstick A

D150-2M109

The correct oil level must be between the two marks. Reinstall the filter , magnetic rod and the cover. Check and top-off the oil level after changing it.

WARNING Do not run the engine in closed areas without proper ventilation to remove deadly exhaust fumes.

WARNING Avoid environment pollution. The used fluids, such as hydraulic oil, lubricants, coolants and the filter elements soaked with these fluids, must be eliminated according to local or national current regulations qualifying these materials as polluting, harmful and dangerous waste. 24. TORQUE CONVERTER/TRANSMISSION

HYDRAULIC CIRCUIT -

Clean filter and magnetic rod

Tilt the cab, loosen nut 1 and remove mesh filter 4 and magnetic rod 5. Wash both of them with solvent. Clean the container inside.

WARNING Do not use gasoline or any flammable fluid to clean parts. Use approved, non flammable, non toxic commercial solvents only. Wear safety glasses with side shields when using compressed air to clean parts, so as to reduce the danger of personal injuries caused by flying particles. Limit the pressure to 2 bar (29 p.s.i.), in accordance with local or national regulations.

1 2

3 4

5

F

1850-2M0136

F. Transmission/torque converter suction filter - 1. Nut 2. Cover - 3. Gasket - 4. Mesh filter - 5. Magnetic rod

WARNING Avoid environment pollution. The used fluids, such as hydraulic oil, lubricants, coolants and the filter elements soaked with these fluids, must be eliminated according to local or national current regulations qualifying these materials as polluting, harmful and dangerous waste.

25. BATTERIES - Check electrolyte level

Tilt the cab of the machine, as described in the point "TILTING THE CAB".

With engine inoperative and the machine on a flat surface. Check that the electrolyte level reaches the reference mark, on the side of the battery. To top-off the electrolyte level, add distilled water through the filling holes.

WARNING Batteries contain SULPHURIC ACID. Protect eyes when working on batteries. In the event acid contacts skin, eyes or clothing, WASH IMMEDIATLEY WITH WATER FOR AT LEAST TEN MINUTES.Seek medical help. Should booster batteries be used, remember to connect both ends of the booster cables in the proper manner (+) with (+) and (-) with (-). Avoid short-circuits of the terminals. FUMES ARE FLAMMABLE. Estinguish all smoking materials and free flames, before checking, topping-off or charging batteries. Do not check batteries by shorting.

Caution – To maintain batteries in efficient conditions, follow these instructions: -do not leave lights on for extended periods when engine is off or idling; -for short stoppages, it is preferable idling the engine rarther than shutting it off, since each starting can run down the batteries; -make sure the cable terminals are properly secured to battery posts and are covered with a thin layer of petroleum jelly; -keep batteries clean, especially the top;

Caution – To avoid possible damages to the electrical system: -do not mismatch the terminal connection on batteries; - do not let the engine run when batteries are disconnected; - if batteries are partially discharged and auxiliary batteries are used to start the engine, or in the event of battery charging through external systems, connect terminals of the same sign, (+ to + and - to -).

26. AIR CONDITIONER COMPRESSOR -

Check condition of belt and adjust sag

Open the access panel on the left side of the machine. 1.Check the conditions of the compressor belt. If the belt is worn or damaged, replace it with a new one.

The belt must deflect 15 to 20 mm (19/32 to 25/32 in)under as force of 110N. 2.Loosen the compressor mounting bolt and the bracket adjusting screw. 3.To obtain a correct belt adjustment, move the compressor outward. Tighten the compressor mounting bolt and the bracket adjusting screw. 4.If necessary, repeat phases 2 and 3.

1850-2M0138

27. DRIVE BELT

Inspection/Replacement

Open the right and left panels of the engine compartment and inspect visually the belts. Check for the presence of crossing cracks: the cross-way ones (in the width direction of the belt) are allowed, whereas longitudinal ones ( in the longitudinal direction of the belt) crossing cross-way cracks, are not allowed. Replace the belt if worn. Allowable condition

Belt to be replaced

D150-2M114

WARNING Do not inspect nor adjust belts with engine in operation. Be particularly aware of the presence of fans. Keep head, body, limbs, feet and hands away from belts and moving blades. Be particularly aware of blowing fans.

Replacement

3/8 in square drive

To remove and install the belt, lift arm 4 of belt tensioner 2 and the pulley with square drive 1.

Service suggestion: In case of difficulty during the installation of the drive belt (belt apparently too short) place the belt on the fan hub pulley, then slide the belt over the water pump pulley, keeping the belt tensioner lifted. The application of an excessive force in a direction opposite to the rotating direction or after the belt tensioner has been tightened to a mechanical stop, could cause the fracture of the belt tensioner arm.

1

D150-2M115

Also, check that bolt (3) securing the tensioner is tightened to a torque of 4.3 daNm (ft lbs).

3 29. UNDERCARRIAGE SUSPENSION - Lubricate oscillating cross-bar

Introduce grease into the two grease fittings for lubrication of the oscillating cross-bar (one each side).

2 4

D150-2M116

28. DRIVE BELT

Inspection - Tension of drive belt

Measure the belt sagging on the longest side. Maximum sag: 9.5 - 12.7 mm (3/8 - 1/2 in)

Note – Use a belt tension measuring dynamometer Cummins ST-1293).

Tension limit: 267 - 578 N (60 - 130 lbs/ft).

D150-2M119

30. CRANKSHAFT PULLEY - Check

Check the tightening torque 13.7 daNm (101 lbft) of the crankshaft pulley retaining screws.

31. BELT TIGHTENER - Check

Make sure the belt tightener pulley can turn freely. Check the belt tightener bearing.

D150-2M117

D150-2M118