M A E D A Crawler Crane 6.20 TROUBLESHOOTING
5/2020 CC1908S-1 6-107
Abnormal phenomenon Main causes Corrective action
The starter stops before the engine
starts.
Insufficient battery charge or
defective battery
Recharge/replace (★) the
battery.
Defective wiring, defective ring
gear and pinion
Inspect/replace (★)
Exhaust gas colour turns white.
Defective fuel Replace with specified fuel.
Defective fuel injection system
Inspect/repair (★)
Engine oil combustion or
abnormal consumption
Inspect/repair (★)
Exhaust gas colour turns black.
Defective fuel Replace with specified fuel.
Air cleaner clogged
Refer to "6.17.5
MAINTENANCE EVERY 250
HOURS" on P. 6-54 and clean.
Defective fuel injection system
Inspect/repair (★)
Intake/exhaust throttle valve
gap is too large.
Adjust (★)
Defective EGR valve operation
Inspect/repair (★)
Blown fuse Replace
The engine stops during operation.
Clogging of fuel prefilter and
main filter
Refer to "6.17.6
MAINTENANCE EVERY 500
HOURS" on P. 6-60 and
replace filter.
Insufficient fuel
Refer to "5.2.2 OPERATIONS
AND CHECKS BEFORE
STARTING ENGINE" on P.
5-6. and refuel.
Defective wiring
Inspect/repair (★)
Defective sensor
Inspect/repair (★)
Hose pinched or detached
Inspect/repair (★)
Defective wiring
Inspect/repair (★)
Defective sensor
Inspect/repair (★)
Hose pinched or detached
Inspect/repair (★)
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