Komatsu D155A-6 User Manual

.
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 the engine runs at high speed
Defective wiring
Defective adjustment of fan belt
tension
(
Check,repair loose terminals,
disconnections)
Adjust alternator belt tension For
details, see EVERY 250
HOURS SERVICE
Lamp flickers while engine is
running
Charge lamp does not go out even
when engine is running
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 ON
Defective wiring
Insufficient battery charge
Safety switch out of adjust
(
Check, repair)
Charge
(
Adjust safety switch)
Pinion of starting motor keeps
going in and out
Insufficient battery charge Charge
Starting motor turns engine
sluggishly
Insufficient battery charge
Defective starting motor
Charge
(
Replace)
Starting motor disengages before
engine starts
Defective wiring
Insufficient battery charge
(
Check, repair)
Charge
Automatic pre-heating is not
actuated
Defective wiring
Defective heater relay
Defective engine controller
(
Check, repair)
(
Replace)
(
Check, replace)
Outside of electrical heater in not
worm when touched by hand
Defective wiring
Disconnection in electrical
intake air heater
Defective operation of heater
relay
(
Check, repair)
(
Replace)
(
Check, repair heater relay)
Air conditioner does not work
properly
Blown fuse
Insufficient battery charge
Defective air conditioner switch
Defective blower switch
Defective compressor
(
Check, repair)
Charge
(
Replace air conditioner switch)
(
Replace blower switch)
(
Replace)
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Komatsu D155A-6 Specifications

General

Brand	Komatsu
Model	D155A-6
Category	Construction Equipment
Language	English