Troubleshooting
45
PVL14OF-EXT
Troubleshooting
A list of possible troubles and solutions is given below
Trouble:
Possible Cause:
Solution:
The lift does not work
There is no power
Check Power on to restore
if necessary
The electrical wires are
disconnected
Reconnect
The circuit breaker are
blown
Check for correct voltage
Replace
The lift does not raise
The lift is overloaded
Check the vehicle weight
The motor direction of
rotation is not correct.
Interchange the two phases
on the main switch
The oil in the power unit is
not suffi cient.
Add some hydraulic oil
The UP button is faulty.
Check UP button and
connection for proper
operation. Replace if
needed
The lowering valve does not
close.
Check and clean, if dirty or
replace if faulty
The suction tube or pump
fi lter is dirty.
Check and clean if needed.
Presence of air in the
hydraulic system
Bleed the hydraulic system
The lifting capacity is not
suffi cient
The pump is faulty
Check the pump and
replace if needed.
Oil leakages in hydraulic
circuit
Check the circuit for any
leakage
The lift does not lower
when the lowering lever
and the safety release lever
are pressed
The lowering valve does not
work properly
Check the valve and
replace if needed.
The equalizer cables are
not in the same tension.
Readjust the equalizer
cables.
The lift does not lower
smoothly
Presence of air in the
hydraulic system
Bleed the hydraulic system
Lubrication of sliders is not
enough.
Grease
Sliders are damaged
Replace
