Fuse; Fusiblelink - Komatsu PC128UU-2 Operation & Maintenance Manual

OPERATION

FUSE

NOTICE
Before replacing a fuse, be sure to turn off the starting
switch.
The fuses protect the electrical equipment and wiring from
burning out.
If the fuse becomes corroded, or white powder can be seen, or
the fuse is loose in the fuse holder, replace the fuse.
Replace the fuse with another of the same capacity.
FUSE CAPACITIES AND CIRCUIT NAMES
Fuse
capacity
Room lamp, radio (back-up), starting
(1) 30 A
motor terminal B (stop solenoid)
Alarm buzzer, monitor panel, sole-
(2) 20 A
noid, main controller
Wiper, radio, horn, window washer,
(3) 20 A
throttle actuator
Actuation circuit for abnormality in
(4) 20 A
electrical system
(5) 15 A Heater, additional lamp
Air conditioner, travel alarm, 2- stage
(6) 20 A
relief solenoid
(7) 15 A Spare fuse
(8) 20 A Spare fuse
(9) 30 A Spare fuse

FUSIBLELINK

If the starting motor does not move even when the starting
switch is turned to the ON position, there is probably a break in
the wire-shaped fusible link (1), so open the engine hood and
check or replace.
REMARK
A fusible link refers to the large-sized fuse wiring installed in
the high current flow portion of the circuit to protect electrical
components and wiring from burning, in the same way as an
ordinary fuse.
Name of circuit
EXPLANATION OF COMPONENTS
3-33