Fuse - Komatsu PC450-8 Operation & Maintenance Manual

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DETAILED CONTROLS AND GAUGES

FUSE

NOTICE
Before replacing a fuse, be sure to turn off the starting switch.
q
The fuse holder is at the rear right of the operator's seat.
q
The fuses protect the electrical equipment and wiring from
burning out.
q
If the fuse becomes corroded, or white powder can be seen,
or the fuse is loose in the fuse holder, replace the fuse.
q
Replace the fuse with another of the same capacity.
Fuse Capacities and Circuit Names
Fuse
No.
capacity
(1)
10A
Working lamp relay, hazard switch
(2)
30A
Solenoid valve
(3)
10A
PPC hydraulic lock solenoid
(4)
10A
Window washer, cigarette lighter
(5)
10A
Horn
(6)
10A
Auto pre heater, lower wiper
(7)
10A
Rotating lamp, heated mirror (if fitted)
(8)
20A
Working lamp, rear lamp
Radio, speaker, L.H. lever (power max,
(9)
10A
quick coupler switch), hydraulic ladder,
quick coupler solenoid.
(10)
10A
Refuel pump.
(11)
20A
Air conditioner unit
(12)
20A
Rear worklamp
(13)
20A
Work lamp relay, cab lamp
(14)
30A
Optional power source (1), auto grease.
Optional power source (2), travel alarm,
(15)
20A
12V power supply,
heated air suspension seat
(16)
10A
Radio backup, room lamp
Monitor (normal power source), pump con-
(17)
20A
troller, starter switch
(18)
10A
Spare
(19)
30A
Engine controller
(20)
5A
Engine controller ACC
3-106
Name of circuit
OPERATION
3

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