Komatsu PC14R-3, Руководство по эксплуатации и техническому обслуживанию

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TROUBLESHOOTING
WEAM009300
167
3.7.6.2 FRAME
3.7.6.3 ENGINE
TROUBLE CAUSE SOLUTION
Travel speed, swing, boom, arm,
bucket slow.
• No hydraulic oil. • Restore level. See "CHECKS TO BE
CARRIED OUT BEFORE
STARTING THE ENGINE".
Pump does not work correctly.
• Foreign body in the hydraulic tank
filter.
• Clean. See "Every 2000 hours OF
OPERATION".
Hydraulic oil temperature increases
excessively.
• No hydraulic oil.
• Fan belt slack.
• Radiator or exchanger fins clogged.
• Restore level. See"CHECKS TO BE
CARRIED OUT BEFORE STARTING
THE ENGINE".
• Adjust fan belt tension. See "EVERY
500 HOURS OF OPERATION".
• Clean or repair. See “EVERY 500
HOURS OF OPERATION”.
Tracks come off. • Slack tracks. • Adjust track tension. See “WHEN
REQUIRED”.
Sprocket excessively worn.
TROUBLE CAUSE SOLUTION
Engine oil pressure warning light
comes on.
• Oil level in oil pan too low (air
sucked in).
• Oil filter clogged.
• Oil leakage due to damage or
incorrect tightening of oil pipes or
joints.
• Engine oil pressure sensor faulty.
• Restore level. See "CHECKS TO BE
CARRIED OUT BEFORE
STARTING THE ENGINE".
• Replace cartridge.
See "Every 500 hours OF
OPERATION".
(•) Check and repair.
(•) Change.
Steam comes out of radiator top
(pressure valve).
• Fluid level low, fluid leakages.
• Fan belt slack.
• Mud or limestone accumulated in
cooling system.
• Radiator fins damaged or closed.
• Faulty thermostat.
• Radiator cap loose
(work at considerable heights).
• Fluid level sensor faulty.
• Add fluid, repair. See "CHECKS TO
BE CARRIED OUT BEFORE
STARTING THE ENGINE".
• Adjust fan belt tension. See "EVERY
500 HOURS OF OPERATION".
• Change fluid and clean cooling
system. See "WHEN REQUIRED"
• Clean or repair. See "EVERY 500
HOURS OF OPERATION".
(•) Change.
• Tighten cap or change unit.
(•) Change.
Engine coolant temperature warning
light comes on.