OTHER TROUBLE
PHENOMENA AND ACTIONS FOR ELECTRICAL SYSTEM
• For the remedies indicated with (*) in the remedy column, always contact your Komatsu distributor.
• In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs.
Problem
Main causes
Remedy
Lamp does not glow brightly even
when the engine runs at high
speeds.
Defective wiring, deterioration of bat-
tery
Check and repair loose terminal or
wire breakage, replace battery. (*)
Loosening and damage of alternator
belt
Check alternator belt tension and re-
place. (*)
Lamp flickers while engine is run-
ning.
Defective wiring, deterioration of bat-
tery
Check and repair loose terminal or
wire breakage, replace battery. (*)
Loosening and damage of alternator
belt
Check alternator belt tension and re-
place. (*)
Charge level caution lamp does not
go out even when engine is running.
Defective alternator
Replace. (*)
Defective wiring
Check, repair. (*)
Unusual noise is generated from al-
ternator.
Defective alternator
Replace. (*)
Starting motor does not rotate even
when starting switch is turned to
START position.
Defective wiring
Check, repair. (*)
Defective starting motor
Replace. (*)
Insufficient battery charge
Charge battery.
Battery disconnect switch at OFF po-
sition
Turn ON.
Engine shutdown secondary switch
at “STOP ENGINE” position
Set it to “NORMAL” position.
Apply the cover.
Pinion of starting motor repeats en-
gaging and disengaging (rattles).
Insufficient battery charge
Charge battery.
Defective safety relay
Replace. (*)
Starting motor turns engine sluggish-
ly.
Insufficient battery charge
Charge battery.
Defective starting motor
Replace. (*)
Starting motor disengages before
engine starts.
Defective wiring, defective ring gear
and pinion
Check, repair. (*)
Insufficient battery charge
Charge battery.
Preheating pilot lamp does not light
up.
Defective wiring
Check, repair. (*)
Defective heater relay
Replace. (*)
Defective monitor
Replace. (*)
Oil pressure caution lamp does not
light up when engine is stopped
(starting switch is at ON position).
Defective monitor
Replace. (*)
Defective oil pressure caution switch
Replace. (*)
When startability at low temperature
is poor, if you touch the outside of
the electric heater by hand after pre-
heating, it is not felt warm.
Defective wiring
Check, repair. (*)
Wire breakage in electrical intake air
heater
Replace. (*)
Defective operation of heater relay
Replace. (*)
Blown fuse of the heater
Replace. (*)
TROUBLES AND ACTIONS
OPERATION
3-272
Содержание HB365LC-3
Страница 2: ......
Страница 25: ...LOCATION OF SAFETY LABELS 5 SAFETY SAFETY LABELS 2 5...
Страница 73: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 348: ......
Страница 349: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
Страница 436: ......
Страница 437: ...SPECIFICATIONS 5 1...
Страница 441: ...HB365LC 3 SPECIFICATIONS SPECIFICATIONS 5 5...
Страница 442: ...HB365NLC 3 SPECIFICATIONS SPECIFICATIONS 5 6...
Страница 489: ...REPLACEMENT PARTS 7 1...
Страница 505: ......
Страница 506: ...HB365LC 3 HYDRAULIC EXCAVATOR Form No UENAM01292 2017 KOMATSU All Rights Reserved Printed in Belgium 02 2017...