Every 250 hours work

12. ENGINE SUMP - Change oil (The oil change is performed at the same time of the replacement of the filter)

Note – Comply strictly with the oil change interval at 250 hours or 3 months. The oil change and the replacement of the filter have the purpose of eliminating contaminants suspended in the oil.

Note – If the fuel used has a sulphur content higher than 1 %, the engine oil change must be done every 150 hours.

Note – Drain the oil when it is hot and the contaminants are in suspension, thus proceed as follows:

3. To facilitate the draining, open the left front panel of the engine compartment indicated and loosen the oil filler neck cap B.

For the draining, use a container with a capacity of at least 20 lit (5 1/4 US Gal).

A B

D150-2M081

D150-2M097

1. Operate the engine until the coolant temperature reaches 60 °C (140 °F), then shut-off the engine. 2. Remove drain plug T located on the bottom of the machine using a 10 mm (0.39 in) Allen wrench.

MIN. MAX A

A. Engine oil dipstick B. Engine oil filler neck

D150-2M082

WARNING Use approved disposal sites or used oil collection centers. In case of doubts about the procedures for the management and disposal of used lube oils, contact the appropriate local authorities responsible for environmental protection.

WARNING Avoid prolonged and repeated contacts of the skin with used engine lube oil which could be dangerous to your health. Avoid prolonged and repeated contacts of the skin with used engine lube oil which could be dangerous to your health. -Avoid contact with skin or eyes. If contact occurs, immediately clean the area throughly. -Keep oil and fluids away from children.

T

1850-2M0119

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.

13. ENGINE OIL FILTER

Replacing the filter cartridge

When the oil stops flowing, refill with oil of a prescribed type and grade (see "FLUID CAPACITIES TABLE").

4.retighten draining plug T and refill with new oil through filler neck B, up to the maximum level marked on dipstick A. 5.run the engine at low idle; 6.shut-off the engine and, after a few minutes, topoff, if required.

Oil sump Total system capacity capacity

14.2 lit (3 3/4 US Gal) 16.3 lit (4 1/3 US Gal)

Open the upper and lower panels of the right engine compartment. The replacement of the filter must be done at the prescribed interval. Replace the filter, proceeding as follows: 1. clean the filter contact area and loosen it with a 90 - 95 mm (3.54-3.74 in) filter wrench; Note – It is possible the O-Ring may sticks to the filter head, thus, prior to installing a new filter, make sure that it has been removed.

2. fill the new filter with clean oil and lubricate the seal; 3. tighten the filter by hand. After the gasket touches its seat on the engine cylinder block, tighten 3/4 turn further.

D150-2M100

WARNING An excessive mechanical tightening can damage the threads and the gasket of the filter element.

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.

D150-2M099

14. TRACK CHAINS - Checking the sag

WARNING Fluid under pressure; to release the tension of the track chain, follow the procedures in the "Operation and Maintenance Manual".

C

If the sagging of the track chains in section C included between the support roller and the idler exceeds 30 - 40 mm (1 3/16 - 1 5/8 in).

3÷4 cm MAX.

D150-2M101

Remove the guard indicated, loosening the four securing screws.

D150-2M102

DANGER Fluid under pressure. Do not reduce the tension of the track chain by loosening pressure relief valve VS. Do not remove the grease fitting installed on adjusting valve VR.

Pump grease into grease fitting I indicated of valve VR of the adjustment cylinder, until the normal tension of the track chain is obtained.

To increase sag, discharge grease from the cylinder, loosening slightly adjustment valve VR and backing the machine up a few yards, if necessary.

Retighten valve VR.

I

VR

VS

D150-2M103

I. Grease fitting; VR. Track chain tension adjustment valve; VS. Pressure relief valve.

Note – The track chain tension must be somewhat lesser in muddy, very wet terrains and when sand, gravel, snow and ice are present.

15. BRAKE SYSTEM -

Operating check

Check the correct operation of the brake system doing a series of tests with machine at maximum speed descending a slope. When the brake pedal is depressed, the machine must come to a stop after a braking distance that should be sufficiently short and so as to ensure an adequate operational safety.

16. GLASS FUEL FILTER Clean mesh filter

WARNING Do not use gasoline nor any flammable fluid to clean parts. Use approved, non flammable, non toxic commercial solvents only.

1.Remove the rear panel under the fuel reservoir and close valve S shutting-off the fuel.

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.

S

D150-2M104

2.Open the engine compartment upper and lower panels on the left side of the machine.

3. Remove the mesh filter from glass B loosening screw C and clean it with an adequate solvent.

Make sure that there is no open flames and sparks in the vicinities. After reinstalling the filter and glass, open valve S and actuate priming pump P a few times.

B

C

P

D150-2M105