Komatsu D31EX-21, Operation & Maintenance Manual, Page: 174 / 256

TROUBLESHOOTING
OPERATION
3-122
STARTING ENGINE WITH BOOSTER CABLE 3
When starting the engine with a booster cable, do as follows:
PRECAUTIONS WHEN CONNECTING AND DISCONNECTING BOOSTER CABLE
WARNING
q
When connecting the cables, never contact the posi-
tive (+) and negative (-) terminals.
q
When starting the engine with a booster cable, always
wear safety glasses and rubber gloves.
q
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.
q
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 gen-
erated when this is done, so connect to a place as far
as possible from the battery.
q
When disconnecting the booster cable, take care not
to bring the clips in contact with each other or with the
machine body.
NOTICE
q
The starting system for this machine uses 24V. For the normal machine, also use a 24V battery.
q
The size of the booster cable and clip should be suitable for the battry size.
q
The battery of the normal machine must be the same capacity as that of the engine to be started.
q
Check the cables and clips for damage or corrosion.
q
Make sure that the cables and clips are firmly connected.
q
Check that the safety lock levers and parking brake levers of both machine are in the LOCK position.
q
Check that each lever is in the NEUTRAL position.