Komatsu D58E-1 - Page 86

16. TROUBLESHOOTING
16.3 OTHER TROUBLE
. (
): Always contact your Komatsu distributor when dealing with
l
In cases of abnormalities or causes which are not listed below,
distributor for repairs.
these items.
please contact your Komatsu
16.3.1 ELECTRICAL SYSTEM
Problem
Lamp does not glow brightly even
when
the engine runs
at high speed
Lamp
flickers
while
engine is
running
Charge lamp does not go out even
when engine is running
Abnormal noise is generated from
alternator
Main causes
l
Defective
wiring
l
Defective adjustment of fan belt
tension
l
Defective alternator
l
Defective wiring
l Defective alternator
Remedy
(o
Check, repair loose terminals,
disconnections)
l
Adjust fan belt tension
For details, see EVERY
250
HOURS SERVICE
(0 Replace)
(o Check, repair)
(o Replace)
Starting motor does not turn when
starting switch is turned to ON
Pinion of starting motor keeps going
in and out
l
Defective wiring (o Check, repair)
l
Insufficient battery charge
l
Charge
l Insufficient battery charge
l
Charge
Starting motor turns engine sluggishly
l Insufficient battery charge
l
Charge
l
Defective starting motor (o Replace)
Starting motor disengages before
. Defective wiring
l
(Check, repair)
engine starts
l
Insufficient battery charge
l
Charge
Heater signal does not glow red
l
Defective wiring (o Check, repair)
l Defective heater relay (o Replace)
l
Defective heater signal
(o Replace)
Oil pressure warning lamp does not
light up when engine is stopped
(starting switch at ON position)
l
Defective warning lamp
l
Defective warning lamp switch
(o Replace)
(o Replace)
Charge lamp does not light up when
engine is stopped (starting switch at
On position)
Outside of electrical intake air heater
is not warm when touched by hand
l
Defective charge lamp
l Defective wiring
(o Replace)
(o Check, repair)
l
Defective wiring
l Disconnection in electrical intake
air heater
l Defective operation of heater relay
switch
(a Check, repair)
(o Replace)
(o Check, repair heater relay
switch)
2-55