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9
Malfunctions, causes and remedies
NOTE
*) Malfunctions may only be remedied by authorized personnel
Malfunction
Engine
Engine does
not start
Bucket arm cannot
be raised/lowered
Steering requires
increased effort
9-1
GB
Possible cause
Drive switch (4-9/14) is
not in neutral position
Pressure relief valve in
the control valve is open
Pilot valve for the
working hydraulics
(4-9/13) is locked
Pilot pressure is not
present or is too low
Diesel engine has failed
Pressure relief valve in
the control valve is open
Pusher in the priority valve
is stuck
Remedy
See Engine Operating
Instructions
Switch into neutral
position
Completely dismantle
and clean the pressure
relief valve; readjust *
Unlock the pilot valve
(section 5.5.1)
Open the pressure relief
valve in the control
cable, clean it and
readjust it *
Using storage
pressure, it is
possible to bring the
bucket arm to its lower-
most position directly
after the engine fails.
» Not with built-in pipe
break safety device «
Completely dismantle
and clean the pressure
relief valve; readjust *
Replace the priority
valve *
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