Other Trouble - Komatsu ecot3 Operation And Maintenance Manual

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 the engine runs at high speed
Lamp flickers while engine is
running
Charge level monitor does not go
out even when engine is running
Abnormal noise is generated from
alternator
Starting motor does not turn when
starting switch is turned to ON
Pinion of starting motor keeps
going and out
Starting motor turns engine
sluggishly
Starting motor disengages before
engine starts
Engine pre-heating monitor does
not light
Oil pressure monitor does not light
up when engine is stopped
(starting switch at ON position)
Outside of electrical heater is not
warm when touched by hand
Main causes
Defective wiring, deterioration of
battery
Loose fan belt
Defective alternator
Defective wiring
Defective alternator
Defective wiring
Defective starting motor
Insufficient battery charge
Insufficient battery charge
Defective safety relay
Insufficient battery charge
Defective starting motor
Defective wiring, defective ring
gear pinion
Insufficient battery charge
Defective wiring
Defective heater relay
Defective monitor
Defective monitor
Defective caution lamp switch
Defective wiring
Disconnection in electric heater
Defective operation of heater
TROUBLES AND ACTIONS
Remedy
( Check, repair loose terminals,
disconnections, replace battery)
( Replace fan belt, Check tension)
( Replace)
( Check, repair)
( Replace)
( Check, repair)
( Replace)
Charge
Charge
( Replace)
Charge
( Replace)
( Check, repair)
Charge
( Check, repair)
( Replace)
( Replace)
( Replace)
( Replace)
( Check, repair)
( Replace)
( Replace)
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