Problem
Main causes
Remedy
When machine is steered, it does not
turn.
Parking brake lever is in LOCK.
Set to FREE.
Defective lever wiring
Check, repair. (*)
Defective HSS pump
Check, replace. (*)
Defective HSS motor
Check, replace. (*)
Transmission oil pressure does not
rise.
Gear pump is worn or scuffed.
Check, replace. (*)
Power train case oil level is low.
Set oil to specified level. See
CHECKS BEFORE STARTING.
Clogged oil filter element strainer of
power train case
Clean. See EVERY 1000 HOURS
MAINTENANCE.
Drawbar pull is low (travel speed is
low).
Insufficient engine horsepower
See “PHENOMENA AND ACTIONS
FOR ENGINE RELATED PARTS”.
Travel speed increase is slow.
Low power train oil temperature
Warm-up engine.
Insufficient engine horsepower
See “PHENOMENA AND ACTIONS
FOR ENGINE RELATED PARTS”.
When joystick (steering, directional
and gear shift lever) is operated, ma-
chine does not start.
Power train case oil level is low.
Set oil to specified level. See
CHECKS BEFORE STARTING.
Transmission oil pressure does not
rise.
See “Transmission oil pressure does
not rise” shown above.
Parking brake lever is in LOCK.
Set to FREE.
Machine does not travel straight.
Defective adjustment of power train
controller
Adjust. (*)
Defective steering valve
Check, replace. (*)
Torque converter overheats (power
train oil temperature caution lamp
lights up).
Power train case oil level is low.
Set oil to specified level. See
CHECKS BEFORE STARTING.
Transmission oil pressure does not
rise.
See “Transmission oil pressure does
not rise” shown above.
Work load is too high.
Select speed range 1 range low, or
reduce load and increase speed dur-
ing work.
PHENOMENA AND ACTIONS FOR ENGINE RELATED PARTS
• As for the corrective actions indicated with (*) in the remedy column, always contact your Komatsu distribu-
tor.
• In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs.
Problem
Main causes
Remedy
After warming up, when engine
speed is increased, engine oil pres-
sure caution lamp still lights up.
Lowered oil level in engine oil pan
(sucking in air)
Add oil to specified level. See
CHECK BEFORE STARTING.
Improper oil is used. (Viscosity is im-
proper.)
Referring to “RECOMMENDED
FUEL, COOLANT, AND LUBRI-
CANT”, replace oil with proper one.
Clogged oil filter cartridge
Replace. See EVERY 500 HOURS
MAINTENANCE.
Oil leakage due to defective tighten-
ing or breakage of oil pipe or pipe
joint.
Check, repair. (*)
Defective monitor
Replace. (*)
OPERATION
TROUBLES AND ACTIONS
3-247
Содержание D155AX-8E0
Страница 2: ......
Страница 11: ...Do not repeatedly handle and lift loads FOREWORD VIBRATION LEVELS 1 9...
Страница 13: ...Evaluation height 1 2m above the ground Scale interval of the circles is 1 m FOREWORD INTRODUCTION 1 11...
Страница 24: ......
Страница 63: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 312: ......
Страница 313: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
Страница 397: ...SPECIFICATIONS 5 1...
Страница 403: ...HANDLE HEADREST Keep the headrest inserted to the end ATTACHMENTS AND OPTIONS HANDLE HEADREST 6 5...
Страница 404: ......
Страница 405: ...REPLACEMENT PARTS 7 1...
Страница 420: ...D155AX 8E0 BULLDOZER Form No EENAM03780 2019 KOMATSU All Rights Reserved Printed in Belgium 04 2019...