Komatsu HB215LC-3, Operation & Maintenance Manual

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• The fuse holder is at the rear of the operator's seat.
• The fuses protect the electrical component and wiring from
burning out.
• If the fuse becomes corroded, or looks white powdery, or
the fuse is loose in the fuse holder, replace the fuse.
• Replace the fuse with the one of the same capacity.
Fuse capacities and circuit names
No.
Fuse ca-
pacity
Name of circuit
(1) 5 A Secondary switch, working lamp relay
(2) 30 A Solenoid valve
(3) 5 A PPC oil pressure lock solenoid
(4) 10 A Window washer, cigarette lighter
(5) 10 A Horn, R.H. knob SW
(6) 5 A Auto preheater relay
(7) 10 A Revolving lamp
(8) 10 A Radio, speaker, L.H. knob switch
(9) 10 A Rear working lamp relay, headlamp
(10) 20 A Air conditioner unit
(11) 10 A Optional power supply (1)
(12) 30 A
Optional power supply (2), 12 V power supply
and air suspension seat with heater
(13) 5 A Air conditioner ECU power supply
(14) 5 A Key ACC signal
(15) 20 A Working lamp
(16) 10 A
Radio backup, room lamp, system operating
lamp
(17) 20 A Monitor, pump controller
(18) 30 A Engine controller
(19) 5 A Air conditioner ECU backup
(20) 10 A
Optional power supply (continuous power
supply)
(21) 10 A CAB front lamp (1)
(22) 10 A CAB rear lamp
(23) 10 A Lower windshield wiper
(24) 10 A Quick Coupler
(25) 15A Refueling pump
(26) 10 A CAB front lamp (2)
(27) 10 A OPT lamp
EXPLANATION OF COMPONENTS OPERATION
3-112