58
GB
Possible cause
Solution
Air inlet filter clogged
Abundant foam formation, or oil
level too low
Check oil state and level: change if
necessary
Inlet pipe broken or twisted
Elastic diesel engine - pump
coupling faulty
Supercharger faulty
Drive direction selection solenoid
valve fails to operate
Maximum pressure valves dirty or
faulty
Faulty hydrostatic motor
The vehicle moves
neither forwards
nor backwards, or
it moves with a
certain delay
Contact your Ahlmann Distributor
Engine mountings faulty
Replace filter
Faulty injectors
Fan broken
Faulty injector pump
Engine breakdown
Contact your Ahlmann Distributor
Engine fails to max r.p.m. or is
heavily overloaded
Supercharger feed pressure is too
low
Maximum working pressure valve
set too low
In-tank hydraulic oil temperature
too high
Faulty hydrostatic motor
Contact your Ahlmann Distributor
Engine vibration
Insufficient
tractive force in
both directions
Hydrostatic motor fails to maintain
maximum displacement
Insufficient
tractive force in
first gear in both
directions
Contact your Ahlmann Distributor
Contact your Ahlmann Distributor
Temporary magnet power supply
interruption
Problem
Possible cause
Solution
Oil level too low or wrong oil type
Check level or change oil
Oil draw piping not airtight
Check draw piping
Pump faulty check working
pressure
Hydrostatic motor faulty: check oil
draw flow-rate
Inefficient oil-water exchanger
Contact your Ahlmann Distributor
Extreme in-tank
oil overheating
Replace it
Air inlet valve clogged
Check diesel engine r.p.m.
Max rated r.p.m. unattainable
Second gear insertion magnet on
hydrostatic motor not working
Sealing ring faulty or hardened
The vehicle does
not reach max
speed
Oil leaks at engine
or draw pump
drive shaft
Contact your Ahlmann Distributor
Contact your Ahlmann Distributor
Hydraulic circuit pressure too low
Reduced hydraulic
cylinder force
Contact your Ahlmann Distributor
Low-performance loader hydraulic
pump.
Reduced working
manoeuvre speed
Contact your Ahlmann Distributor
Low-performance loader hydraulic
pump
Loader hydraulic
oil overheating
Contact your Ahlmann Distributor
Incorrect hydraulic circuit pressure
Oil draw in the cylinder pistons
Noisy hydraulic
pump
Contact your Ahlmann Distributor
Oil level too low
Air present in drawing
Faulty pump
Air in hydraulic circuit
Contact your Ahlmann Distributor
Hydraulic system
whistles
O-Ring seals worn
Contact your Ahlmann Distributor
Oil leakage at
cylinders between
cylinder head and
piston
The vehicle
decelerates
erratically
Problem