.
OPERATION
EXPLANATION OF COMPONENTS
Fuse box IV
No. Capacity Name of circuit
(41) 10A Room lamp
(42) 10A Power source for engine preheat
(43) 20A
Yellow rotating lamp (if equipped),
Step lamp (if equipped)
(44) 20A Side lamp (if equipped)
(45) 20A Air suspension seat (if equipped)
(46) 10A Payload external display lamp (if equipped)
(47) 10A Tachograph (if equipped), Cigarette lighter
(48) 20A Air conditioner (if equipped)
(49) 20A Spare
(50) 20A Front wiper
Fuse box V
No. Capacity Name of circuit
(51) 10A Power source for emergency steering system
(52) 300A Power source for engine heater
(53) 10A Power supply for electric priming pump
Precautions when adding electrical equipment
CAUTION
If the electrical equipment system is changed, problems may occur in the machine control. Do not make any changes to the
electrical system.
If you want to make any change to the electrical system, please contact your Komatsu distributor.
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