Problem
Main causes
Remedy
Starting motor turns but engine does
not start.
Lack of fuel
Add fuel. See CHECKS BE-
FORE STARTING.
Air in fuel system
Repair place where air is
sucked. (*)
No fuel in fuel filter
Fill filter with fuel. See EVERY
500 HOURS MAINTENANCE.
Starting motor turns engine sluggish-
ly.
See PHENOMENA AND AC-
TIONS FOR ELECTRICAL SYS-
TEM.
Starting motor does not turn.
See PHENOMENA AND AC-
TIONS FOR ELECTRICAL SYS-
TEM.
Defective valve clearance (defective
compression)
Adjust valve clearance. (*)
Gear shift lever is in any position
other than NEUTRAL position (N).
Place gear shift lever to NEU-
TRAL position (N).
Fuel supply occasionally stops.
Clogged fuel tank breather tube
Replace breather tube. (*)
Oil consumption is excessive.
Oil leakage
Check, repair. (*)
Exhaust gas color is white or bluish.
Excessive oil in oil pan
Set oil to specified level. See
CHECKS BEFORE STARTING.
Worn piston, ring, cylinder liner
Replace. (*)
Low grade fuel being used
Replace with specified fuel.
Defective turbocharger
Check, replace. (*)
Water entry in the aftertreatment de-
vices
Check, repair. (*)
Breakage of the aftertreatment devi-
ces
Replace the aftertreatment devi-
ces. (*)
Exhaust gas is black.
Clogged air cleaner element
Clean or replace. See WHEN
REQUIRED.
Worn piston, ring, cylinder liner
Check, repair. (*)
Defective compression
See adjustment of clearance
above.
Defective turbocharger
Check, replace. (*)
Breakage of the aftertreatment devi-
ces
Replace the aftertreatment devi-
ces. (*)
Defective injector
Check, replace, repair. (*)
Engine hunts.
Air entering suction side of fuel line
Repair place where air is
sucked. (*)
Combustion makes breathing sound
from time to time.
Defective nozzle
Replace nozzle. (*)
There is knocking (combustion or
mechanical).
Low grade fuel being used
Replace with specified fuel.
Overheating
See “Indicator of engine coolant
temperature gauge is in red
range” above.
Breakage of inside of the aftertreat-
ment devices
Replace the aftertreatment devi-
ces. (*)
TROUBLES AND ACTIONS
OPERATION
3-260
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 ...
Страница 322: ......
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 ...
Страница 430: ......
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 ...