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OPERATION
OTHER TROUBLE
ELECTRICAL SYSTEM
(
): Always contact your Komatsu distributor when dealing with these items.
In cases of problems or causes which are not listed below, contact your Komatsu distributor for repairs.
Problem
Lamp does not glow brightly even
when engine runs at high speed
Lamp flickers while engine is
running
Battery charge system caution pilot
lamp lights up while engine is
running
Abnormal noise is generated from
alternator
Starting motor does not turn when
starting switch is turned to ON
Starting motor turns engine
sluggishly
Starting motor disengages before
engine starts
Main causes
Defective wiring
Insufficient battery charge
Defective adjustment of belt
tension
Defective alternator
Defective wiring
Defective alternator
Defective wiring
Defective starting switch
Insufficient battery charge
Defective battery switch
Defective wiring
Insufficient battery charge
Defective wiring
Insufficient battery charge
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TROUBLESHOOTING
Remedy
( Check, repair loose terminals,
disconnections)
Charge, Add distilled water
Adjust alternator belt tension
See EVERY 250 HOURS
SERVICE
( Replace)
( Check, repair)
( Replace)
( Check, repair)
( Replace switch)
Charge
( Replace switch)
( Check, repair)
Charge
( Check, repair)
Charge
3 - 135
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