Komatsu Wheel Loader WA380-6

WARNING: The parts and oil are at high temperature immediately after the engine is stopped, and may cause burns. Wait for the temperature to go down before starting the work.

When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.

Refill capacity: 23 liters (6.08 US gal)

Open the engine side cover on the right side of the chassis.

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

Loosen drain plug (P), and drain the oil.

Check the drained oil, and if there are excessive metal particles or foreign material, please contact your Komatsu distributor.

Contact your Komatsu distributor for the following steps

High-pressure piping clamp replaced

Fuel spray prevention cap replaced

CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC FILTER ELEMENT

Lower the bucket horizontally to the ground and apply the parking brake, then stop the engine.

Set a container to catch the oil under drain plug (2).

Loosen drain valve (3), then gradually pull it out to drain the oil.

After draining the oil, close drain valve (3), install and tighten drain plug (2).

Remove mounting bolt (5) of filter cover (4) at the top of the tank, then remove the cover.

Remove spring (6) and bypass valve (7), then take out element (8).

Change transmission oil filter cartridge

Waited for the temperature to go down before starting the work?

Slowly turned the oil filler cap to release the internal pressure before removing it?

Refill capacity: 38 liters (10.04 US gal)

Set a container to catch the oil under drain plug (P), then removed drain plug (P) and drained the oil?

After draining the oil, installed drain plug (P)?

Set a container to catch the oil under the transmission filter?

Removed drain plug (1) of the transmission filter, drained the oil, then tightened the plug again?

Using a filter wrench, turned filter cartridge (2)to the left to remove it?

WARNING: After the engine has been operated, all parts are at high temperature, so do not replace the filter immediately. Wait for all parts to cool down before starting the operation.

High pressure is generated inside the engine fuel piping system when the engine is running. When replacing the filter, wait for at least 30 seconds after stopping the engine to let the internal pressure go down before replacing the filter.

Do not bring any fire or flame close.

NOTICE: Genuine Komatsu fuel filter cartridges use a special filter that has highly efficient filtering ability. When replacing the filter cartridge, always use a genuine Komatsu part.

The common rail fuel injection system used on this machine consists of more precise parts than the conventional injection pump and nozzle. If any part other than a genuine Komatsu filter cartridge is used, dust or dirt may get in and cause problems with the injection system. Always avoid using substitute parts.

When carrying out inspection or maintenance of the fuel system, pay more attention than normal to the entry of dirt. If dirt is stuck to any part, use fuel to wash it off completely.

Open the engine side cover on the right side of the chassis.

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