Komatsu Bulldozer D39EX-21

WARNING: The oil is at high temperature immediately after the machine has been operated. Wait for the oil to cool down before starting the operation. If there is still pressure remaining inside the case, the oil or plug may fly out. Loosen the plug slowly to release the pressure.

Set the TOP mark at the top, with the UP mark and plug (P) perpendicular to the ground surface.

Set a container under plug (P) to catch the oil.

Remove plugs (P) and (F) with the handle and drain the oil.

Check the O-rings in the plugs for damage. If necessary, replace with new ones.

Add oil through the hole of plug (F).

When oil begins to overflow from the plug (F) hole, install plug (F).

Warning: Carry out this check before operating the machine.

Prepare a container to catch the fuel that is drained.

Open drain valve (1) at the bottom inside the inspection cover on the left side at the rear of the machine and drain the water and sediment accumulated at the bottom together with fuel.

Warning: When doing this, be careful not to get fuel on yourself.

After clear fuel comes out, close drain valve (1).

If any abnormality is found, describe it here

Sign off on the water pump check

WARNING: Engine is at high temperature immediately after the machine has been operated. Wait for engine to cool down before replacing the filter. Do not bring fire or sparks near the fuel.

Prepare a filter wrench and a container to catch the fuel.

Set the container to catch the fuel under the filter cartridge.

Using a filter wrench, turn filter cartridge (1) counterclockwise to remove it.

Clean the filter holder, fill a new filter cartridge with clean fuel, coat the packing surface with engine oil, then install it to the filter holder.

When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it up 1/2 to 3/4 of a turn.

After completing the replacement of filter cartridge (1), bleed the air.

WARNING: The engine will start, so check carefully that the area around the engine is safe before cranking it.

CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT

q If inspection, cleaning, or maintenance is carried out with the engine running, dirt will get into the engine and damage it. Always stop the engine before carrying out these operations.

q When using compressed air, there is danger that dirt may be blown around and cause serious injury.

Always use safety glasses, dust mask, and other protective equipment.

1. Open engine side cover on the left side of machine.

2. If the yellow piston at the display portion of dust indicator (1) becomes red (7.5 kPa), clean the element.