Komatsu PC118MR-8 Operation And Maintenance Manual page 280

TROUBLESHOOTING
Connecting the booster cables
Before connecting the batteries via additional cables, make
sure that the starter key of both the machines and the battery
main switch of the machine to be started are turned to OFF.
Connect the additional cables as instructed below and
observing the order number in the diagram.
1. Connect on clamp of the additional cable (A) to the positive
(+) lead of battery (C) of the machine to be started.
2. Connect the other clamp of the additional cable (A) to the
positive (+) lead of battery (D) of the machine that supplies
the current.
3. Connect one clamp of the additional cable (B) to the
negative (-) lead of battery (D) of the machine that supplies
the current.
4. Turn to ON the battery main switch (S) of the machine to
be started and connect the other clamp of additional cable
(B) to turret (E) of the machine to be started.
Starting the engine
Make sure that the safety levers of both machines are in the LOCK position (L). Also make sure that all the
control levers are in NEUTRAL.
1. Make sure that the clamps hold the battery terminals firmly.
2. Start the engine of the machine used as starting aid and run it at high rpm.
3. Start the engine of the machine to be started (see "Starting the engine (3-130)").
Removing the additional cables
After starting the engine, disconnect the booster cables
proceeding in the reverse order.
1. Disconnect one clamp of the additional cable (B) from
turret (E) of the machine started.
2. Disconnect the other clamp of the additional cable (B) from
the negative (-) lead of battery (D) of the machine that has
supplied the current.
3. Disconnect one clamp of the additional cable (A) from the
positive (+) lead of battery (D) of the machine that has
supplied the current.
4. Disconnect the other clamp of the additional cable (A) from
the positive (+) lead of battery (C) of the started machine.
3-196
CAUTION
WEAM014802
FUNCTIONING