Komatsu D37EX-24 Operation & Maintenance Manual page 271

OPERATION
NOTICE
• The starting system for this machine uses 24 V. Accordingly, the normal machine must be equipped
with a 24 V power supply.
• 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.
• Check that the work equipment lock levers and parking brake levers of both machines are in LOCK
position.
• Check that each lever is in NEUTRAL position.
• To prevent damage of the electric devices of the failed machine, turn the starting switch of the failed
machine OFF, check that the system operating lamp is not lit, and then turn the battery disconnect
switch key to OFF position before connecting the jumper cable.
PROCEDURE FOR CONNECTING JUMPER 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.
1.
Connect the clip of jumper cable (A) to the positive (+) ter-
minal of battery (C) on the failed machine.
2.
Connect the clip at the other end of jumper cable (A) to the
positive (+) terminal of battery (D) on the normal machine.
3.
Connect the clip of jumper cable (B) to the negative (-) ter-
minal of battery (D) on the normal machine.
4.
Turn the battery disconnect switch (S) of the failed ma-
chine to ON position.
5.
Connect the clip at the other end of jumper cable (B) to en-
gine cylinder block (E) of the failed machine.
METHOD FOR STARTING ENGINE
1.
Check both of normal machine and failed machine that the lock lever is set to LOCK position.
2.
Check both of normal machine and failed machine that the control levers are in NEUTRAL position.
3.
Make sure the clips are firmly connected to the battery terminals.
4.
Start the engine of the normal machine and run it at high idle (Max. speed).
5.
Turn the starting switch of the failed machine to START position and start the engine.
If the engine does not start at first, try again after 2 minutes or more.
PROCEDURE FOR REMOVING JUMPER CABLE
After the engine has started, disconnect the jumper cables in the reverse of the order in which they were con-
nected.
1.
Remove the clip of jumper cable (B) from engine cylinder
block (E) on the failed machine.
2.
Remove the clip of jumper cable (B) from the negative (-)
terminal of battery (D) on the normal machine.
3.
Remove the clip of jumper cable (A) from the positive (+)
terminal of battery (D) on the normal machine.
4.
Remove the clip of jumper cable (A) from the positive (+)
terminal of battery (C) on the failed machine.
TROUBLES AND ACTIONS
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