Komatsu Galeo PC27MR-2 Operation & Maintence Manual page 160

TROUBLES AND ACTIONS
Battery Removal and Installation
NOTICE
After securing the battery, check that it does not move. If it moves, tighten it again securely.
Before removing the battery, remove the ground cable (normally connected to the negative (-) terminal).
If any tool touches between the positive terminal and the chassis, there is a hazard of sparks being generated.
When installing the battery, connect the ground cable last.
Install the battery securely to the determined place. When doing this, be careful not to let the clamps contact the
terminals.
When replacing the battery, fix the new battery securely in
position with battery mounting clamp (1).
Tightening torque of mounting nut (2) is 4.9 to 5.9 N·m (0.5 to 0.6
kgf·m, 3.6 to 4.3 lbft).
Make sure that the cover on top of the battery covers the battery
completely. Do not let it roll back.
If the cover is damaged, replace it immediately.
If there are chlorides accumulated on the top surface of the
battery or around the terminals, wash with hot water at a
temperature of about 40°C (104°F), then dry completely before
installing the wires.
Battery Charges
When charging the battery, if the battery is not handled correctly,
there is a hazard that the battery may explode. Always follow the
instructions of "DISCHARGED BATTERY (PAGE 3-107)" and the
instruction manual accompanying the charger, and do as follows.
Flammable hydrogen gas is generated when the battery is
charged, so remove the battery from the chassis, take it to a
well-ventilated place, and remove the battery caps before
charging it.
Tighten the battery caps securely. If any battery cap is
damaged, replace it immediately.
Set the voltage of the charger to match the voltage of the battery to be charged. If the correct voltage is not
selected, the charger may overheat and cause an explosion.
Connect the positive (+) charger clip of the charger to the positive (+) terminal of the battery, then connect the
negative (-) charger clip of the charger to the negative (-) terminal of the battery. Be sure to attach the clips
securely.
Set the charging current to 1/10 of the value of the rated battery capacity; when carrying out rapid charging, set
it to less than the rated battery capacity.
If the charger current is too high, the electrolyte will leak or dry up, and this may cause the battery to catch fire and
explode.
If the battery electrolyte is frozen, do not charge the battery or start the engine with a different power source.
There is a danger that this will ignite the battery electrolyte and cause the battery to explode.
Do not use or charge the battery if the battery electrolyte level is below the LOWER LEVEL line. This may cause
an explosion. Check the battery electrolyte level periodically and add distilled water to bring the electrolyte level
to the UPPER LEVEL line.
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OPERATION