Komatsu PC1250-11, Original Instructions Manual

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PRECAUTIONS FOR DISCHARGED BATTERY
k k
WARNING
• It is dangerous to charge a battery when installed on a
machine. Make sure that it is removed before charg-
ing.
• When checking or handling the battery, stop the en-
gine and turn the starting switch and battery discon-
nect switch keys to OFF positions.
• The battery generates hydrogen gas, and it is danger-
ous that it may explode. Do not bring open flame such
as lighted cigarettes near the battery, or do nothing
that will cause sparks.
• Battery electrolyte is dilute sulphuric acid, and it will
attack your clothes and skin. If it gets on your clothes
or on your skin, immediately wash it off with a large
amount of clean water.
If it gets in your eyes, wash the eyes immediately with
clean water, then consult a doctor for medical treat-
ment.
• When handling batteries, always wear protective eye-
glasses and rubber gloves.
• When removing the battery, first disconnect the cable
from the ground (normally the negative (-) terminal).
When installing, first connect the cable to the positive
(+) terminal.
If a tool touches the positive terminal and the chassis,
it is dangerous that it may cause a spark. Be extremely
careful.
• If the terminals are loose, it is dangerous that the de-
fective contact may generate sparks, and it may cause
an explosion.
Install the cable terminals securely.
• When removing or installing the cable terminals,
check which is the positive (+) terminal and which is
the negative (-) terminal.
METHOD FOR REMOVING AND INSTALLING BATTERY
1.
Remove and install the battery cable
• Disconnect the ground cable (normally connected to
the negative (-) terminal) first.
If any tool touches between the positive (+) terminal
and the chassis, there is a hazard of sparks being
generated.
Loosen the nuts (1) of the terminal and remove the
wires from the battery.
• When installing the battery, connect the ground cable
last.
Insert the hole of the terminal to the battery and tight-
en nut (1).
Tightening torque of the nut (1):9.8 to 11.8 Nm {1.0 to 1.2 kgm}
2.
Remove and install the battery
TROUBLES AND ACTIONS OPERATION
3-242