Battery; Battery Hazard Prevention - Komatsu PC450-8 Operation & Maintenance Manual

SAFETY

BATTERY

BATTERY HAZARD PREVENTION

Battery electrolyte contains sulphuric acid, and batteries generate flammable hydrogen gas, which may explode.
Mistaken handling can lead to serious injury or fire. For this reason, always observe the following precautions.
q
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.
q
When working with batteries, always wear safety glasses and rubber gloves.
q
Never smoke or use any flame near the battery.
q
If you spill acid on your clothes or skin, immediately flush the
area with large amount of water.
q
If acid gets into your eyes, flush them immediately with large
amount of water and seek medical attention.
q
Before working with batteries, turn the starting switch to the OFF position.
As there is a hazard that sparks will be generated, always do as follows.
q
Do not let tools or other metal objects make any contact between the battery terminals. Do not leave tools or
other metal objects lying around near the battery.
q
When disconnecting the battery terminals, wait for approx. one minute after turning off the engine starting switch
key, and be sure to disconnect the grounding terminal (negative (-) terminal) first. Conversely, when connecting
them, begin with the positive (+) terminal and then the grounding (-) terminal. Make sure that all the terminals
are connected securely.
q
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.
q
Tighten the battery caps securely.
q
Install the battery securely to the determined place.
SAFETY MACHINE OPERATION
2
2-31