PEUGEOT BOXER Handbook page 163

Symptoms Verification/Check
The hydraulic Power harness and unit
unit does not relay.
work.
Control harness (control
unit).
Circuit-breaker.
The ram does No, check the coil and the
not lower. electrical connections of
the valve.
The control unit Check the connection and
does not work. contacts.
The fuse blows Replace the lowering coil.
while lowering.
Hydraulic faults
Symptoms Verification/Check
Very noisy unit, Suction strainer clogged
rises slowly. or crushed at the bottom
of the tank.
Very noisy Pump alignment, change
new unit, rises the unit.
quickly.
The ram lowers Lowering valve crushed or
by itself. blocked.
Symptoms Verification/Check
The ram does Yes, check the slide valve
not lower. and bleed.
Refer to the
"Maintenance" section.
No, replace the solenoid
valve.
No, check the alignment
of the ram.
The unit works Slide valve jammed if no
but its pressure solenoid valve on the unit.
does not Refer to the
increase. "Maintenance" section.
Pressure relief device,
setting, dirt.
Pump seal out of service.
Motor/pump coupling.
Pump loose from its
support.
The hydraulic Solenoid valve stuck,
unit does not replace it or retighten the
work. nut behind the strainer.
Emulsion in the Incorrectly positioned
tank. return pipe.
Insufficient oil level.
Special features
Symptoms Verification/Check
The oil flows Oil level too high.
back through
Tolerance of the oil
the oil breather
breather pipe membrane
pipe.
too high, to be replaced.
Valid only for UD2386
units.
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