Anderson Group
Self-loading Trailer – Operator's Manual
75
Problem
Possible cause
Solution
A sensor is not
working properly.
The sensor is
defective.
Replace the sensor, cable or connector.
The cable is dam-
aged.
The connector is
not making good
contact.
The detection dis-
tance is not correct.
Adjust the detection distance to 6 mm (3/8 in.).
Oil is leaking from a
cylinder head.
There
are
scratches on the
chrome rod of the
cylinder head.
Replace the cylinder head chrome rod.
The cylinder head
gasket is defective.
Replace the cylinder head gasket.
One of the cylinders
is moving when the
trailer is stopped
and is not achieving
the desired force.
There
are
leaks
inside the cylinder.
Replace the cylinder piston seals.
One of the cylinders
does not have the
recommended
pressure or flow
rate.
The
mechanical
stops on the main
valve
are
not
adjusted properly.
Adjust the mechanical stops on the manual arms of
the main hydraulic valve to allow for maximum
movement.
The hydraulic unit is
leaking oil.
The seals inside the
hydraulic unit are in
poor condition.
Replace the seals inside the hydraulic unit.
Some trailer
components are not
moving properly.
A hydraulic spool
valve is blocked.
Disassemble, clean and reassemble the hydraulic
spool valve.
The hydraulic load-
sensing
valve
is
defective.
Replace the hydraulic load-sensing valve.
The system is losing
pressure.
The
filters
are
blocked.
Replace the filters.
