Komatsu Komatsu Bulldozer D32P-1 D32P-1

The engine is equipped with an automatic belt tensioner that maintains correct tension on the drive belt. To check belt tension a Burroughs type gauge must be used because of the wide drive belt. Proper tension should be 110 to 150 N (80 to 110 lbs).

If a Burroughs type gauge is not available, tension may be checked by belt deflection. Press the belt with your finger at the longest span and measure the deflection. Maximum deflection 9.5 to 12.7mm (0.37 to 0.50 in).

With the automatic tensioner, adjustment isn't required.

To replace the drive belt, place a 12 in. drive breaker bar (1) in the square hole in the belt tensioner. Push the breaker bar UP to loosen the tensioner. Remove the old belt (2). Inspect belt tensioner. The tensioner pulley should spin freely with no rough spots detected under hand pressure. Install the new belt.

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.

24.10.1 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

Check if machine has been left outside in sub-zero weather

WARNING: Use caution and follow the manufacturer's instructions when using external heaters to warm the power train in cold weather.

Check if machine has been lubricated and serviced at specified intervals

Check if proper fuel has been used

REPLACING DRIVE TRAIN PRESSURE FILTER

SERVICING THE DRIVE TRAIN SUCTION STRAINER

Sign off on the bulldozer maintenance