Komatsu PC15MRX-1 Operation And Maintenance Manual page 134

TROUBLESHOOTING
REMOVAL AND INSTALLATION OF BATTERY
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, connected the ground cable last.
When replacing the battery, fix the battery securely with
battery clamp (1).
Tightening torque for mounting nut (2)
Nut and clamp: 2.0 N•m (0.2 kg•m, 1.5 lbft)
Double nut: 27 to 34 N•m (2.8 to 3.5 kg•m, 19.9 to 25.1 lbft)
BATTERY CHARGES
When charging the battery, there is danger that the battery may
explode if it is handled wrongly, so follow the instructions in
"OTHER TROUBLE (PAGE 3-83)" and the instruction manual
supplied with the charger, and be sure to observe the following
precautions.
Set the voltage of the charger to match the voltage of the
battery to be charged. If the voltage is not selected cor-
rectly, 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 nega-
tive (-) charger clip of the charger to the negative (-) termi-
nal of the battery. Be sure to fix 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 hazard 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. Always check the battery electrolyte level periodically and add distilled water to bring the
electrolyte level to the UPPER LEVEL line.
3-80
OPERATION