Komatsu PW118MR-11 Operation & Maintenance Manual page 322

TROUBLES AND ACTIONS
START ENGINE WITH JUMPER CABLES
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• Never touch the positive (+) and negative (-) terminals
together when connecting the cables.
• Always wear protective eyeglasses and rubber gloves
when starting the engine by using the jumper cables.
• Be careful not to let the normal machine and failed ma-
chine contact each other.
Sparks generated near the battery could ignite the hy-
drogen gas generated by the battery .
• Make sure that there is no mistake in the jumper cable
connections. In the last connection (to the upper
structure frame), a spark will occur, connect the cable
to a spot as far away from the battery as possible.
(Nevertheless, do not connect to the work equipment
as the current does not flow well through it.)
• When removing the auxiliary cable, be careful that the
terminals do not touch together or touch the chassis
of 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 terminals should be suitable for the battery size.
• The battery of the operative machine must be the same capacity as that of the failed machine (en-
gine to be started).
• Check the cables and clips for damage or corrosion.
• Make sure that the cables and clips are firmly connected.
• Check that the lock levers and parking brake levers (if equipped) of both machine are in LOCK posi-
tion.
• Check that the drive levers of both machines are in the neutral position (N).
• 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 (3-130)".
REMARK
If the battery disconnect switch is turned to OFF position, the radio tuning information, etc. may be lost. In this
case, set the information again. For details of the caution lamps, see "HANDLE RADIO (3-230)".
Connect booster cable
Turn the starting switch and battery disconnect switch of the failed machine, and the starting switch of the nor-
mal machine to OFF position.
3-250
WARNING
WENAM00130
OPERATION