ahlmann AL 65, Operating Instructions Manual

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K65C/K75C/K95C 9-1 K65C/K75C/K95C 9-1
Malfunction Possible cause Remedy
Engine See the operating
instructions for the
engine
Engine does Drive switch (4-12/6) is Set the drive switch
not start not in the neutral position to the neutral position
Generator does Plug connection is Push in and secure
not start loose the plug connection
V-belt is torn Replace the V-belt
Generator speed is Check V-belt tension;
too low if necessary, tighten
Bucket arm Pressure relief valve in Completely dismantle
cannot be raised the control valve is open and clean the pressure
or lowered relief valve; readjust *
Pilot valve for the working Unlock the pilot valve
and auxiliary hydraulics (1-3/arrow)
(4-12/5) is locked
Pilot pressure is not Open the pressure relief
available or is too low valve in the control line,
clean it and readjust it *
Diesel engine has failed Using storage pressure,
it is possible to bring the
bucket arm to its lower-
most position directly
after the engine has
failed.
»Not with built-in pipe
break safety device«
Steering requires Pressure relief valve in Completely dismantle
increased effort the steering unit is open and clean the pressure
relief valve; readjust *
Pusher in the priority valve Replace the priority
is stuck valve *
9 Malfunctions, causes and remedies
NOTE
*) Malfunctions may only be remedied by authorised personnel.
Malfunction Possible cause Remedy
Engine See the operating
instructions for the
engine
Engine does Drive switch (4-12/6) is Set the drive switch
not start not in the neutral position to the neutral position
Generator does Plug connection is Push in and secure
not start loose the plug connection
V-belt is torn Replace the V-belt
Generator speed is Check V-belt tension;
too low if necessary, tighten
Bucket arm Pressure relief valve in Completely dismantle
cannot be raised the control valve is open and clean the pressure
or lowered relief valve; readjust *
Pilot valve for the working Unlock the pilot valve
and auxiliary hydraulics (1-3/arrow)
(4-12/5) is locked
Pilot pressure is not Open the pressure relief
available or is too low valve in the control line,
clean it and readjust it *
Diesel engine has failed Using storage pressure,
it is possible to bring the
bucket arm to its lower-
most position directly
after the engine has
failed.
»Not with built-in pipe
break safety device«
Steering requires Pressure relief valve in Completely dismantle
increased effort the steering unit is open and clean the pressure
relief valve; readjust *
Pusher in the priority valve Replace the priority
is stuck valve *
9 Malfunctions, causes and remedies
NOTE
*) Malfunctions may only be remedied by authorised personnel.