Komatsu Wheel Loader WA800-3E0

Check water pump for play in the pulley, grease leakage, water leakage, or clogging of the drain hole.

Check starting motor for worn brush or lack of grease on the bearing.

Check fan pulley and tension pulley for play and leakage of grease.

Check for loose engine high-pressure piping clamps, hardening of rubber.

Check for missing fuel spray prevention cap, hardening of rubber.

Sign off on the wheel loader maintenance

WARNING: Do not use the battery if the electrolyte level is below the LOWER LEVEL line. This will accelerate deterioration inside the battery, reduce its service life, and may cause an explosion.

The battery generates flammable gas. Do not bring fire or sparks near the battery.

Battery electrolyte is dangerous. If it gets in your eyes or on your skin, wash it off with plenty of water and consult a doctor.

When adding distilled water, do not allow the electrolyte to go above the UPPER LEVEL line. Excess electrolyte may leak, damage paint, or corrode other parts.

NOTICE: If there is danger of the electrolyte freezing, add distilled water before starting operations the next day.

Is the electrolyte level between UPPER LEVEL (U.L.) and LOWER LEVEL (L.L.)?

If the level is below the midpoint of U.L. and L.L., remove cap (1) and add distilled water.

After adding water, is cap (1) tightened securely?

REMARK: If water exceeds the U.L. line, use a syringe to lower it. Neutralize removed fluid with baking soda (sodium bicarbonate) and flush with water, or consult your Komatsu distributor or battery maker.

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.

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.

When operating the work equipment, wipe off all the grease from the hydraulic cylinder rods.

NOTICE: If the machine has been stored without carrying out the monthly rust-prevention operation, consult your Komatsu distributor before using it. When using the machine after long-term storage, do as follows before using it.

Wipe off the grease from the hydraulic cylinder rods.

Add oil and grease at all lubrication points.

When the machine is stored for a long period, moisture in the air will mix with the oil. Check the oil before and after starting the engine. If there is water in the oil, change all the oil.

CHECKS AFTER INSPECTION AND MAINTENANCE:

CHANGE OIL IN HYDRAULIC TANK, REPLACE HYDRAULIC FILTER ELEMENT

Set the bucket horizontally on the ground, then turn the parking brake ON.

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

Open the cover on the right side of the operator's compartment.

Remove oil filler (F) and plug (1) from the filter case.

Set a container to catch the oil under drain plug (3).

Open drain valve (2) gradually and drain the oil.

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