Problem
Main causes
Remedy
Battery charge level caution lamp
lights up while engine is running.
Defective alternator
Replace. (*)
Defective wiring
Check, repair. (*)
Unusual noise is generated from al-
ternator
Defective alternator
Replace. (*)
Loosening and damage of alternator
belt
Check alternator belt tension and re-
place.
Starting motor does not rotate even
when starting switch is turned to
START position.
Defective wiring
Check, repair. (*)
Defective starting switch
Replace switch (*)
Insufficient battery charge
Charge battery.
Defective battery relay
Replace relay. (*)
Battery disconnect switch is turned
OFF
Turn ON.
Engine shutdown secondary switch is
at "STOP ENGINE" position.
Set it to “NORMAL” position. Close
the cover.
Starting motor incapable of cranking
engine smoothly.
Defective wiring
Check, repair. (*)
Insufficient battery charge
Charge battery.
Starting motor disengages before en-
gine starts. (Rattles)
Defective wiring
Check, repair. (*)
Insufficient battery charge
Charge battery.
When startability at low temperature
is poor, if you touch the outside of the
electric heater by hand after preheat-
ing, 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 heater
Replace. (*)
PHENOMENA AND ACTIONS FOR CHASSIS
• 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
Torque converter oil temperature cau-
tion lamp flashes.
Leakage of oil or entry of air due to
damage or defective tightening of oil
pipe, pipe joint
Check, repair. (*)
Wear, scuffing of gear pump
Check, repair. (*)
Lack of oil in transmission case
Add oil to specified level. See
CHECK BEFORE STARTING.
Clogged oil cooler
Clean or replace (*)
Long distance traveled in torque con-
verter range
Drive in direct range
Disconnected, broken wiring to sen-
sor
Repair, connect wiring (*)
Steering wheel is heavy
Insufficient greasing of link
Lubricate.
Internal leakage inside steering cylin-
der
Replace cylinder seal. (*)
OPERATION
TROUBLES AND ACTIONS
3-257
Содержание HM400-5
Страница 2: ......
Страница 23: ...LOCATION OF SAFETY LABELS SAFETY SAFETY LABELS 2 5 ...
Страница 24: ...SAFETY LABELS SAFETY 2 6 ...
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Страница 61: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1 ...
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Страница 323: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1 ...
Страница 409: ...SPECIFICATIONS 5 1 ...
Страница 411: ...SPECIFICATIONS SPECIFICATIONS 5 3 ...
Страница 412: ......
Страница 413: ...ATTACHMENTS AND OP TIONS Before reading this chapter read and understand the SAFETY 6 1 ...
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Страница 431: ...REPLACEMENT PARTS 7 1 ...
Страница 446: ...HM400 5 ARTICULATED DUMP TRUCK Form No EENAM03380 2015 KOMATSU All Rights Reserved Printed in Belgium 09 2015 ...