Komatsu HD785-5 User Manual

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OPERATION
TROUBLESHOOTING
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 Main causes Remedy
Lamp does not glow brightly even
when engine runs at high speed
Defective wiring
Insufficient battery charge
Defective adjustment of belt
tension
(
Check, repair loose terminals,
disconnections)
Charge, add distilled water
Adjusst altenator belt tension
See EVERY 250 HOURS
SERVICE.
Lamp flickers while engine is
running
Charge monitor lights up while
running is engine
Defective alternator
Defective wiring
(
Replace)
(
Check, repair)
Abnormal noise is generated from
alternator
Defective alternator ( Replace)
Starting motor does not turn when
starting switch is turned to START
Defective wiring
Defective starting switch
Insufficient battery charge
Defective batteery switch
(
Check, repair)
(
Replace switch)
Charge
(
Replace switch)
Starting motor turns engine
sluggishly
Defective wiring
Insufficient battery charge
(
Check, repair)
Charge
Starting motor disengages before
engine starts
Defective wiring
Insufficient battery charge
(
Check, repair)
Charge
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Komatsu HD785-5 Specifications

General

Brand	Komatsu
Model	HD785-5
Category	Trucks
Language	English