Komatsu PC290LC-6K Operation & Maintenance Manual page 139

Connecting the booster cables
Keep the starting switch at the OFF position.
Connect the booster cable as follows, in the order of the numbers
marked in the diagram.
1. Make sure that the starting switches of the normal machine and
problem machine are both at the OFF position.
2. Connect one clip of booster cable
problem machine.
3. Connect the other clip of booster cable
of the normal machine.
4. Connect one clip of booster cable
the normal machine.
5. Connect the other clip of booster cable
problem machine.
Starting the engine
1. Make sure the clips are firmly connected to the battery terminals.
2. Start the engine of the normal machine and keep it to run at high
idling speed.
3. Turn the starting switch of the problem machine to the START posi-
tion and start the engine. If the engine doesn't start at first, try again
after 2 minutes or so.
to the positive + + + + + terminal of the
to the positive + + + + + terminal
to the negative - - - - - terminal of
to the engine block of the
16. TROUBLESHOOTING
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