Komatsu HD785-5, Operation & Maintenance Manual

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OPERATION
TROUBLESHOOTING
STARTING ENGINE WITH BOOSTER CABLE
When starting the engine with a booster cable, do as follows:
PRECAUTIONS WHEN CONNECTING AND DISCONNECTING BOOSTER CABLE
WARNING
When connecting the cables, never contact the positive (+) and negative
(-) terminals.
When starting the engine with a booster cable, wear safety glasses and
rubber gloves.
Be careful not to let the normal machine and problem machine contact
each other. This prevents sparks from generating near the battery which
could ignite the hydrogen gas given off by the battery.
Make sure that there is no mistake in the booster cable connections.
The final connection is to the engine block of the problem machine, but
sparks will be generated when this is done, so connect to a place as far
as possible from the battery.
When disconnecting the booster cable, take care not to bring the clips
in contact with each other or with the machine body.
NOTICE
The size of the booster cable and clip should be suitable for the battery size.
The battery of the normal machine must be the same capacity as that of the problem machine.
Check the cables and clips for damage or corrosion.
Make sure that the cables and clips are firmly connected.
CONNECTING THE BOOSTER CABLES
Keep the starting switch of the normal machine and problem machine in the OFF position.
Connect the booster cable as follows, in the order of the numbers marked in the diagram.
1. Connect one clip of booster cable (A) to the positive (+)
terminal of the problem machine.
2. Connect the other clip of booster cable (A) to the positive (+)
terminal of the normal machine.
3. Connect one clip of booster cable (B) to the negative (-)
terminal of the normal machine.
4. Connect the other clip of booster cable (B) to the engine block
of the problem machine.
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