Komatsu H70051 Series Operation & Maintenance Manual page 360

MAINTENANCE PROCEDURE
• Do not use the battery if the battery electrolyte level is below LOWER LEVEL line. If you do so, it will
reduce the service life of the battery. In addition, it may cause an explosion.
• The battery generates inflammable hydrogen gas and there is a danger of explosion. Do not bring
any open flame near the battery.
• Battery electrolyte is dangerous object. If it gets in your eyes or on your skin, wash it off with a
large amount of water and consult a doctor.
• Do not use a dry wipe to clean the battery. A wet wipe will prevent fire or explosion from static elec-
tricity.
NOTICE
• Do not add the electrolyte to the battery exceeding UPPER LEVEL line. If the electrolyte level is too
high, it may leak and cause damage to the paint surface or corrode other parts.
• If there is a fear that the battery water may freeze after refilling with purified water (such as a com-
mercial battery fluid), do the replenishment before the day's work on the next day.
METHOD FOR CHECKING ELECTROLYTE LEVEL FROM SIDE OF BATTERY
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.
One each of the battery box is provided on both sides of
the rear part of the machine.
2.
Clean around the electrolyte level line with a cloth wet with
water.
Check that the electrolyte level is between UPPER LEVEL
(U.L.) line and LOWER LEVEL (L.L.) line.
3.
When the electrolyte level is below the center between
UPPER LEVEL (U.L.) and LOWER LEVEL (L.L.), remove
cap (1) immediately.
4.
Add purified water (example: commercially available battery liquid) up to UPPER LEVEL (U.L.)
5.
When you add the purified water to the cell of cap (1), add
it to other cells as well.
6.
Clean the vent hole of the battery cap, then close the cap
securely.
Keep the battery top surface clean and wipe off dirt on it
using a wet cloth.
REMARK
If purified water is added to above the UPPER LEVEL
(U.L.) line, use a syringe to lower the level to the UPPER
LEVEL (U.L.) line. Neutralize the removed fluid with baking
soda (sodium bicarbonate), then flush it away with a large
amount of water. If necessary, consult your Komatsu dis-
tributor or a battery manufacturer.
METHOD FOR CHECKING ELECTROLYTE LEVEL WHEN IT IS IMPOSSIBLE TO
CHECK FROM SIDE OF BATTERY
If it is impossible to check the electrolyte level from the side of the battery, or there is no UPPER LEVEL line on
the side of the battery, check according to the following procedures.
1.
Open the cover of the battery box.
One each of the battery box is provided on both sides of the rear part of the machine.
4-48
k k
WARNING
MAINTENANCE