Komatsu WA250PT-5H, Operation & Maintenance Manual

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MAINTENANCE
Service procedure
Every 250 hours service
4-41
Every 250 hours service 0.
Maintenance for every 50 and 100 hours service should be carried out at the same time.
Check battery electrolyte level 0.
Carry out this check before operating the machine.
WARNING
Do not use the battery if the battery electrolyte level is below the LOWER LEVEL line. This will accel-
erate deterioration of the inside of the battery and reduce the service life of the battery. In addition, it
may also cause an explosion.
The battery generates flammable gas and there is danger of explosion, so 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 a large amount
of water and consult a doctor.
When adding distilled water to the battery, do not allow the battery electrolyte to go above the UPPER
LEVEL line. If the electrolyte level is too high, it may leak and cause damage to the paint surface or
corrode other parts.
NOTICE
When adding distilled water in cold weather, add it before starting operations in the morning to prevent
the electrolyte from freezing.
Inspect the battery electrolyte level at least once a month and follow the basic safety procedures given below.
WHEN CHECKING ELECTROLYTE LEVEL FROM SIDE OF BATTERY 0.
If it is possible to check the electrolyte level from the side of the battery, check as follows.
1. Open the cover of the battery box.
There are two battery boxes: One on each side at the rear of the machine.
2. Use a wet cloth to clean the area around the electrolyte
level lines and check that the electrolyte level is between
the UPPER LEVEL (U.L.) and LOWER LEVEL (L.L.) lines.
If the battery is wiped with a dry cloth, static electricity may
cause a fire or explosion.
3. If the electrolyte level is below the midway point between
the U.L. and L.L. lines, remove cap (1) and add distilled
water to the U.L. line.
4. If distilled water has been added to any cell of cap (1), add
distilled water also to the other cells.
5. Clean the vents of the battery caps, then close the caps
securely.
Keep the top of the battery clean and wipe it with a wet
cloth.
REMARK
If distilled water is added to above the U.L. line, use a syringe to lower the level to the U.L. line. Neutralize
the removed fluid with baking soda (sodium bicarbonate), then flush it away with a large amount of water
or consult your Komatsu distributor or battery maker.
Upper level
Lower level