Komatsu D51EX-24, Operation & Maintenance Manual

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Battery disconnect switch (1) is used to cut out the electricity
from the battery.
It is provided inside the hydraulic oil tank inspection cover on
the left side of the machine.
Open the rubber cover (2), and the battery disconnect switch
(1) is seen.
REMARK
Operate this switch while the system operating lamp (3) is not
lit.
(O): OFF position
Switch key (1) can be pulled out (and inserted) and the current
from the battery is cut out.
(I): ON position
The current from the battery flows into the circuit.
Before starting the machine, be sure to set the switch to this
position.
SYSTEM OPERATING LAMP
System operating lamp (1) indicates that the controller mount-
ed on the machine is turned on.
System operating lamp (1) lights up in green when the control-
ler is turned on.
Usually, it goes out in 5 to 6 minutes after the starting switch is
turned to OFF position.
Before operating the battery disconnect switch, check that sys-
tem operating lamp (1) is not lit.
NOTICE
If the battery disconnect switch is turned off while the sys-
tem operating lamp is lit, the data in the controller may be
lost.
REMARK
• Even if the starting switch is in OFF position, the controller may operate. The system operating lamp lights
up in this case, but it is not abnormal.
• After the starting switch has been turned off, the system operating lamp may stay lit for a long time.
In such case, consult your Komatsu distributor.
• While DEF system devices are operating, the system operating lamp lights up to return DEF to the tank.
Do not turn the battery disconnect switch to OFF position while the system operating lamp is lit.
EXPLANATION OF COMPONENTS OPERATION
3-100