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C 4.74
Operating instructions
140 149 443
Troubleshooting guide
Cause Remedy
No maximum speed Diesel engine does not attain
maximum speed
Inching pedal not at maximum speed
Variable-displacement pump not at full
delivery
Check throttle linkage
Check diesel engine
Adjust inching pot, calibrate
Check maximum current, check
proportional solenoid valve
Does not remain stationary with
inching pedal depressed
Inching pedal at wrong position,
maybe foreign objects in the control
Inching pot not adjusted properly
Adjust properly, remove any foreign
objects
Adjust inching pot, calibrate
Inching pedal not functioning
(warning light flashes)
Inching pot defective or no contact
Electronic unit faulty
Replace inching pot, calibrate
Repair cable connector
Renew electronic unit
Machine does not stop without
depressing accelerator in driving
program 1 or 2
Engine idle speed too high
Incorrect calibration
Check engine, adjust idling speed,
check actuator
Carry out calibration