Fuse - Komatsu PC15MRX-1 Operation And Maintenance Manual

EXPLANATION OF COMPONENTS

FUSE

The fuse box is under the seat.
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, solenoid,
(2) 20 A
pump adjuster
Wiper, radio, horn, window washer,
(3) 5 A
throttle actuator
(4) 30 A Stop solenoid, Stop relay, Timer
(5) 5 A Spare fuse
BLOCK FUSE
If the starting motor does not rotate even when the starting
switch is turned to the ON position, block fuse (1) is probably
blown, so open the cover on the right side of the machine and
check or replace.
REMARK
A block fuse is a large fuse wire installed to the circuit where a
large-capacity current is flowing. It acts in the same way as a
normal fuse to protect the electrical equipment and wiring from
burning out under abnormal current.
3-18
Name of circuit
OPERATION