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Komatsu HM400-5 - Page 315

Komatsu HM400-5
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START ENGINE WITH JUMPER CABLES
kk
WARNING
When connecting the cables, never contact the posi-
tive (+) and negative (-) terminals.
Always wear protective eyeglasses and rubber gloves
when starting the engine by using the jumper cable.
Be careful not to let the normal machine and failed ma-
chine contact each other.
The sparks caused near the battery could ignite the
hydrogen gas generated from the battery, so be care-
ful not to let it happen.
Make sure that there is no mistake in the jumper cable
connections.
When the final connection of the cables is done to the
engine block of the failed machine, sparks will be gen-
erated. So, connect to a place as far as possible from
the battery.
When disconnecting the jumper cable, take care not to
bring the clips in contact with each other or with the
machine.
NOTICE
The starting system for this machine uses 24 V. Accordingly, the normal machine must be equipped
with a 24 V battery.
The sizes of the jumper cables and clips should be suitable for the battery size.
The battery of the normal machine must be the same capacity as that of the failed machine.
Check the cables and clips for damage or corrosion.
Make sure that the cables and clips are firmly connected.
To prevent damage of the electric devices of the failed machine, turn the starting switch of the failed
machine to OFF position, and then turn the battery disconnect switch key to OFF position before
connecting the jumper cables. For the operating method of the battery disconnect switch, see “BAT-
TERY DISCONNECT SWITCH (3-115)”.
REMARK
If the battery disconnect switch is turned to OFF position, all the electrical system is cut out and the functions of
KOMTRAX stop.
In addition, the time information of the clock and the radio tuning information may be lost.
In this case, set again. For detail, see “CLOCK ADJUSTMENT (3-81)” and “HANDLE RADIO (3-232)”.
PROCEDURE FOR CONNECTING JUMPER CABLES
Turn the starting switch and battery disconnect switch of the failed machine, and the starting switch of the nor-
mal machine to OFF position.
OPERATION TROUBLES AND ACTIONS
3-255

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