Handling Battery Disconnect Switch - Komatsu PC88MR-10 Shop Manual

30 Testing and adjusting
Electrical system

Handling battery disconnect switch

1. When the battery disconnect switch is turned to
"OFF (O)" position, be sure to remove switch
key (1).
A hazard can result if an unauthorized
person turns switch key (1) to ON position
carelessly.
a The battery disconnect switch is installed
inside the rear left cover of the machine.
2. The operating condition of each controller can
be checked with the system operating lamp (2)
to prevent the abnormal end of the
disconnection of the battery power supply circuit
while the controllers are in operation.
1) Before shutting off the battery power supply
circuit, turn the starting switch to "OFF"
position, and check that system operating
lamp (2) goes off, then turn the battery
disconnect switch to "OFF (O)" position.
2) If the battery disconnect switch is turned to
"OFF (O)" position (battery power supply
circuit is OFF) while system operating lamp
(2) is lit, data loss error of controller may
occur. Never operate the battery disconnect
switch while system operating lamp (2) is lit.
3) System operating lamp (2) goes off in 2
minutes after the starting switch is turned to
"OFF" position.
4) System operating lamp (2) may sometimes
light up while the starting switch is turned to
"OFF" position because KOMTRAX terminal
may maintain its communication under this
condition.
5) System operating lamp (2) may look slightly
luminous in the dark after it is turned off. It is
due to the minute leakage of current and not
an abnormal phenomenon.
After the starting switch is turned to
"OFF" position, KOMTRAX terminal
repeats the start and stop to maintain the
periodic communication.
The start and stop cycle (sleep cycle) of
KOMTRAX terminal varies depending on
the factors including the communication
state and machine stop time. So the lamp
can be lit as long as approximately 1
hour.
6) When you want to cut off the battery circuit
for maintenance but the system operating
lamp (2) is kept lit, turn the starting switch to
"ON" position once and then turn it to "OFF
(O)" position. Lamp (2) goes out in max. 2
minutes. After system operating lamp (2)
goes out, turn the battery disconnect switch
immediately to "OFF (O)" position.
30-128
(PC88MR-AW1P-100-K-00-A)
PC88MR-10