Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 213 / 358

OPERATION TROUBLESHOOTING
213
DISCHARGED BATTERY
WARNING
● It is dangerous to charge the battery while it is still
mounted on the machine. Always remove the battery
before charging it.
● When checking or handling the battery, stop the engine
and turn the starting switch key to the OFF position.
● The battery generates hydrogen gas, so there is danger
of explosion.
Do not bring lighted cigarettes near the battery, or do
anything that will cause sparks.
● Battery electrolyte is diluted sulphuric acid, and it will
attack your clothes and skin. If it gets on your clothes or
on your skin, wash it off immediately with large amounts
of water. If it gets into your eyes, wash it out with fresh
water, and consult a doctor.
● When handling batteries, always wear protective goggles
and rubber gloves.
● When removing the battery, first disconnect the cable
from the ground (normally the negative (-) terminal).
When installing, install the positive (+) terminal first.
If a tool touches the positive terminal and the chassis,
there is danger that it will cause a spark, be extremely
careful.
● If the terminals are loose, there is danger that the defec-
tive contact may generate sparks that will cause an
explosion.
● When installing the terminals, install them tightly.
When removing or installing the terminals, check which
is the positive (+) terminal and which is the negative (-)
terminal.
●
Green rust around the terminals is a cause of self-dis-
charge of the battery. Clean the terminals with sandpa-
per. After removing the rust, coat the terminals thinly
with grease before installing.
REMOVAL AND INSTALLATION OF BATTERY
NOTICE
After fastening the battery in position, check that it does
not move. If it moves, tighten clamp bolts and re-check.
● When removing, remove from the ground side terminal first
(normally the (-) terminal).
Be careful not to touch the positive (+) terminal and the
machine with any tool. Letting a tool touch is dangerous as it
causes sparks.
● When installing, connect the ground side last.
When removing, disconnect the cable
from the ground terminal first.
When installing, connect the cable to
the po terminal first.