Komatsu Utility 69001, Operation & Maintenance Manual

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OPERATION
EXPLANATION OF COMPONENTS
3-41
CIRCUIT BREAKER 3
NOTICE
q
When resetting the circuit breaker, always turn off the power first (turn the starting switch OFF).
q
If the reset button for the circuit breaker comes out immediately when it is pushed in, it is necessary to
carry out an inspection of the electrical circuit.
If the starting switch does not work when it is turned to the ON position, the circuit has probably been cut off by the
circuit breaker.
Inspect the circuit breaker.
REMARK
The circuit breaker is a device installed in electric circuits where a large current flows. It is installed to protect the
electric circuit. It protects the electric components and wiring from damage caused by an abnormal current in the
same way as a normal fuse. After repairing and restoring the location of the abnormality, there is no need to
replace the breaker. It can be used again.
1. Open the cover at the bottom of the front panel. Circuit
breakers (1) and (2) can be seen.
(Circuit breaker (2) is installed only on machines equipped
with an air conditioner.)
2. When the circuit breaker has cut off the circuit, reset button
(3) springs out.
Push reset button (3) in.
FUSE 3
NOTICE
Before replacing a fuse, be sure to turn starting switch to the OFF position.
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.
No
Fuse
capacity
Circuit
(1) 20A Starting switch
(2) 20A Air conditioner