Komatsu PC2000-8 BACKHOE, Operation & Maintenance Manual

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OPERATION
DETAILED CONTROLS AND GAUGES
3-95
Battery Isolator Switch
NOTICE
Normally, keep the battery isolator switch at the ON position.
If you set the battery isolator switch to the OFF position, be careful of the following items.
When the engine is running, do not turn the battery isolator switch to the OFF position. Wait for at least 3
minutes after stopping the engine before turning the battery isolator switch to the OFF position. Failure to
do this may cause problems in the electrical system.
When the battery isolator switch is turned to the OFF position, all the electrical systems are shut off, and
this may result in the memory settings for time and radio station selections being lost.
Even when the starting switch is turned to the OFF position immediately after the fan stops rotating in
reverse, power is supplied to the fan reverse rotation solenoid for a short time in order to protect the
hydraulic motor. Before turning the battery isolator switch to the OFF position, check that the fan has
stopped completely.
This switch (35) is used when shutting off all the electric sys-
tems connected to the battery.
(a) ON position
Electricity is sent to all the electrical systems connected to the
battery. Normally, keep the switch in this position.
Before starting the engine, check that this switch is at the ON
position.
(b) OFF position
When the switch is turned counterclockwise from the ON posi-
tion, the electricity to all the electrical systems connected to the
battery is shut off. Turn the switch to the OFF position in the fol-
lowing cases.
q
Storing the machine for one or more months.
q
Repairing electrical systems.
q
Performing electric welding.
q
Handling batteries. (when replacing, etc.)
q
Replacing fuses.
9JH14918A