Komatsu Bulldozer D38P-1

24.9.1 DRAIN, FLUSH AND REFILL COOLING SYSTEM

Soon after the engine has been stopped, the coolant is hot and can cause personal injury. Allow the engine cool before draining the coolant.

Never remove the radiator cap when the engine is at operating temperature. At operating temperature, the coolant is under pressure. Steam blowing up from the radiator could cause personal injury.

Allow the engine to cool until the radiator filler cap is cool enough to touch with your hands. Remove the filler cap slowly to relieve pressure.

Never be under the machine with the engine running. To avoid serious injury, always stop the engine before being under the machine to open the drain valve.

When removing drain plug, avoid pouring coolant on yourself. + Antifreeze is flammable, so keep it away from any flame.

Flushing agents, neutralizing agents, and anticorrosive agents are strong acids or alkalize, so be careful not to get them on your skin.

If you should get any of these on your skin, wash off immediatelywith ample water.

24.6.1 REPLACE ENGINE OIL FILTER

The lubricating oil filter is a spin-on type. This filter cannot be cleaned and should not be disturbed except when it is necessary to replace it.

Use only recommended filters available from your Komatsu distributor.

1. After reaching operating temperature, stop the engine and drain the crankcase oil. Refer to 24.6.2 CHANGING CRANKCASE OIL.

2. Clean the outside of the filter. Remove the spin-on type filter by turning it counterclockwise. Discard the old filter in a suitable, covered refuse container.

3. Fill the new filter element with clean engine oil and apply a little clean engine oil to the seal.

4. Thread the filter on by hand (do not spin) by turning it clockwise until the seal just makes contact the filter header. Give the element an additional 1/4 to 1/2 turn. Change the crankcase oil per step 24.6.2 following.

24.8.1 SERVICING THE DRIVE TRAIN SUCTION STRAINER

1. Remove the operators compartment floor board to locate the strainer.

2. Remove the four bolts (2) and separate the housing (6) from the base (1). Remove the element (4) with o-ring (5).

3. Wash the element and housing in a commercial solvent and dry thoroughly. Replace o-rings (3 and 5). Remove all dirt from the inside of the base using a cloth dampened with solvent.

4. Check that the new o-ring (5) is in place in the groove in the element (4). Slip the non o-ring end of the element into the housing. Secure the housing to the base (1) with the hardware previously removed.

5. Start the engine and let it idle for approximately five minutes. During this time, check the strainer for leaks. Correct all leaks no matter how minor. Then check the level in the drive train system. Reinstall the operators compartment floor board.

For details of the fluid to use, see 20. USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE.

24.8.2 CHANGING DRIVE TRAIN SYSTEM OIL

1. Remove the drain plug immediately after operation while the lubricant is still warm. Drain into a suitable container.

REPLACING DRIVE TRAIN PRESSURE FILTER

SERVICING THE DRIVE TRAIN SUCTION STRAINER

Sign off on the bulldozer maintenance

24.5.1 BLADE CUTTING EDGE HARDWARE

Check the torque of the blade cutting edge hardware.

U Plow bolt nuts: 455 N*m (335 Ibf ft);