CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
71
obstructed
Traveling motor fault
The brake light is always
on
Repair or replace
Inspect the seat switch and
safety rod switch.
Machine moves
slowly(with abnormal
sound)
Oil level is too low
There is spume.
Oil suction pipe is too
small
Suction filter plug
Traveling motor fault
Parking brake indicator is
on.
Fuel
Use pulsive oil
Inspect and remove leak
Assemble again
Repair or replace
Inspect the switch of the
seat and the safety rod.
Traction force in both
directions is not
enough.
The engine do not reach
to max.speed.
Donkey fuel pump fault
(gear pump)
The max.speed setting of
valve is incorrect.
Setting of release valve is
not corrected
Oil overheating
Traveling motor fault
Replace diesel filter and
inspect injector pump
Repair or replace
Restart
Restart
Inspect oil level and clean
radiator
Repair or replace
Traction force in only
one direction is not
enough.
Engine overload
The pressure setting in
this direction is incorrect.
Reducing load
Adjusting valve
Oil overheating
Oil level is too low
Radiator is plugged or
dirty.
Oil is not suitable
Oil suction pip is too small
Max.pressure of adjusting
valve
Traveling motor fault
The setting of release is
too much.
Traveling motor fault
Fuel
Inspect, replace if
necessary
Replace correct oil
Inspect and remove leak
Inspect mounting, repair or
replace
Repair or replace
Adjusting valve
Repair or replace
The machine can not
reach at the
max.speed.
Filter is pluged
The engine do not reach
to the max.speed.
Travelling pump fault.
The setting of the oil relief
valve is incorrect.
Replace
Replace diesel filter and
inspect the injector pump
Inspect, repair or replace
Adjust