Komatsu PC118MR-8, Operation And Maintenance Manual

Page: 276 / 418

TROUBLESHOOTING
FUNCTIONING
3-192
IF THE BATTERY IS DOWN 3
WARNING
q
It is dangerous to charge the battery when it is
installed in the machine. Always remove it before
recharge.
q
Before any operation related to the battery, stop the
engine, wait at least one minute, and afterwards turn
the battery main switch to OFF and extract the specific
key.
q
The battery produces hydrogen, which may explode.
Do not smoke and avoid producing sparks near the
battery.
q
The battery electrolyte is made of diluted sulphuric
acid that may corrode clothes and even the skin; in
case of contact with this fluid, immediately rinse the
involved part with plenty of water. If the acid gets into
the eyes, immediately rinse with plenty of water and
consult a doctor without delay.
q
When working on the battery, always wear goggles
and rubber gloves.
q
When removing the battery, disconnect the earth cable
(-) first. When installing the battery, connect the
positive terminal (+) first.

If a tool touches the positive terminal and the frame of
t h e ma c h i n e a t t h e s a m e t i m e , s pa r ks m a y b e
generated, thus causing an explosion hazard.
q
Carefully tighten the connection terminals, since false
contacts may generate sparks with consequent risk of
explosion.
q
The accumulation of oxide around the terminals
causes the battery to discharge. Clean the terminals
carefully and cover them with a thin film of grease
before installation.
Battery with charge indicator
q
A visual gauge indicates the battery charge level in different colours, according to the table positioned beside
the gauge:
q
Green: optimal charge
q
Gray: the battery needs recharging
q
White: the battery must be replaced.
WEAM014802