Komatsu PC138US-11 Operation & Maintenance Manual page 179

OPERATION
REMARK
• Spare fuses are installed in the back of the fuse holder lid
at the rear left of the operator's seat.
• After using spare fuses, replenish them immediately.
• One spare fuse is installed for each 5 A, 10 A, 20 A, 25 A,
and 30 A.
FUSIBLE LINK
NOTICE
When replacing the fusible link, be sure to turn the starting
switch to OFF position and, after confirming that the sys-
tem operating lamp is not lit, set the battery disconnect
switch key to OFF position.
If the following phenomena occur, fusible links are suspected of
disconnection. Open the battery inspection cover , and perform
checking and replacing.
• If the engine starting motor does not operate even when
the engine starting switch key is turned to the START posi-
tion, fusible link (1) may be broken.
• If the engine does not start easily in cold weather even if the starting switch is set to HEAT (preheat) posi-
tion, fusible link (2) may be broken.
REMARK
A fusible link refers to the large-sized fuse wiring installed in the high current flow portion of the circuit.
It protects electrical components and wiring from burning, in the same way as an ordinary fuse.
No. Capacity
(1) 65 A
Continuous power supply
(2) 120 A
TOOL BOX
Open the cover of the tool box on the left side of the machine,
and you see the standard toolbox in it.
Store the tools in the attached tool bag.
Name of circuit
Standard power supply
Preheat
Connector No.
F02
F03
F06
WENAM00111
EXPLANATION OF COMPONENTS
Part No.
22U-06-11270
421-06-22830
3-109