Komatsu PC138US-11 Operation & Maintenance Manual page 360

MAINTENANCE PROCEDURE
1.
Open the battery inspection cover.
2.
Roll up rubber cover (1) installed on the top of the battery.
3.
Clean around the electrolyte level line with a cloth wet with
water.
4.
Check that the electrolyte level is between UPPER LEVEL
(U.L.) line and LOWER LEVEL (L.L.) line.
5.
If the electrolyte level is below the middle between UPPER
LEVEL (U.L.) and LOWER LEVEL (L.L.) lines, immediately
remove cap (2) and add purified water (e.g. commercially
available replenishment water for a battery) to U.L. line.
6.
After adding the purified water, tighten cap (2) securely.
7.
Return rubber cover (1) to its original position.
REMARK
If the purified water is added to above UPPER LEVEL (U.L.) line, remove the fluid by using a syringe to lower
the level to 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 distributor or a battery manufac-
turer.
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 battery inspection cover.
2.
Roll up rubber cover (1) installed on the top of the battery.
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MAINTENANCE