Komatsu Wheel Loader WA900-3E0

CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE

Stop the engine and wait for the temperature at all parts to go down.

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

Place a container to catch the oil under drain plug (P) on the left side of the machine.

Install a hose to the drain port of drain plug (P), then 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.

Tighten drain plug (P), then remove the hose.

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

DRAIN WATER, SEDIMENT FROM FUEL TANK

Container prepared and placed under the fuel tank

Drain valve (1) on the right side of the fuel tank opened

All the water and sediment drained out from the bottom of the tank

Drain valve closed after draining

Sign off on the maintenance task

WARNING: If it is necessary to perform the rust-prevention operation while the machine is indoors, open the doors and windows to improve ventilation and prevent gas poisoning.

Operate the air conditioner for 3 to 5 minutes once a month to lubricate all parts of the air conditioner compressor.

Always run the engine at low idle when doing this.

Check the refrigerant level twice a year.

Sign off on the refrigerant level check

LUBRICATING (Applicable for machines with no auto greasing system installed.)

NOTICE: In the extremely hard working conditions, grease the following pins (1) through (6) every 10 hours of operation or daily, whichever way is deemed appropriate. During the initial breaking in for a new machine, carry out lubrication every 10 hours for the first 50 hours of operation.

Using a grease pump, pump in grease through the grease fittings marked by the arrows.

After greasing, wipe off any old grease that was pushed out.

Lower the bucket to the ground and set it horizontally.

CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL

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.

Lower the bucket to the ground, stop the engine, and wait for approx. 5 minutes.

Contact your Komatsu distributor for the following tasks

Engine high-pressure piping clamps replaced

Fuel spray prevention cap replaced

Starting motor and alternator overhauled

Sign off on the maintenance tasks