Komatsu Komatsu Bulldozer D39P-1 D39P-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.

24.10.1 CLEAN AIR CLEANER ELEMENTS

This machine is equipped with a dry-type air cleaner with replaceable filter elements. The air cleaner has two elements, a primary and a safety. The primary element can be cleaned for a limited number of times before replacement is necessary, however, the safety element must be replaced when plugged. Detailed service procedures for this air cleaner are covered in the following text.

As a precaution against dirt entering the engine:

Make sure the air cleaner connections and the turbocharger mounting gaskets are in good condition and all joints and connections are tight.

Never operate the engine unless a filter element is in place and the filter end cover gasket is installed.

Never remove the element from the air cleaner while the engine is running.

24.10.1.3 PRIMARY FILTER ELEMENT

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);

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.

24.4.1 CHECK OIL LEVEL IN DRIVE TRAIN

1. Open the right side door at the hydraulic reservoir.

2. Unscrew the T handle of the oil level gauge, remove the gauge and wipe it clean.

3. Insert the gauge fully into the filler sleeve. Do not tighten. Remove the gauge and check the lubricant level. If necessary, add oil through the filler to bring the level up the FULL mark on the gauge. Reinstall and secure the gauge.

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

4. Lift up on lock lever and close door.

24.4.2.1 RIPPER LINKAGE (12 POINTS)