CIRCUIT BREAKER
• If the starting switch does not operate when it is turned to
ON position, remove the inspection cover under the front
of the console box on the left side of the operator's seat
and check the circuit breakers (A) and (B).
• The circuit breaker cuts out the electrical circuit to protect
the electrical parts and wiring when an overcurrent is gen-
erated.
• To restore the cut out electrical circuit, turn the starting
switch to OFF position and push in the reset button which
projected when the circuit was cut out.
If the electrical circuit is operating normally, the reset but-
ton keeps pushed in. If it projects soon after it is pushed in, check the electrical circuit.
REMARK
A circuit breaker is a circuit protection device installed to a high-voltage current circuit. Similarly to an ordinary
fuse, it protects electrical parts and wiring from abnormal current. It can be reused after the abnormal part is
repaired or replaced.
Breaker (A)
No.
Fuse capaci-
ty
Name of circuit
1
30 A
Engine controller power supply
2
30 A
Cab main power
Breaker (B)
No.
Fuse capaci-
ty
Name of circuit
1
20 A
P/T controller power supply
2
20 A
W/E controller power supply
3
20 A
Air conditioner
4
20 A
Headlamp
5
20 A
Rear lamp
6
20 A
Key B
7
20 A
Controller continuous power supply
8
20 A
Optional device
9
20 A
Additional heater
10
5 A
Compressor
11
20 A
Condenser motor 1
12
20 A
Condenser motor 2
EXPLANATION OF COMPONENTS
OPERATION
3-110
Summary of Contents for D155AX-8E0
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