Bike-Lift M516-001, Use And Maintenance Manual

Page: 35 / 50

Operating manual number
057-2-6-0001-R0
Page 35
Version 2021
EN
8.5.1 FOOT PUMP
PROBLEM PROBABLE CAUSE REMEDY
The pump
functions but does
not work under
pressure.
Oil leak in the hydraulic
system
Check the leak in the system and
repair it.
Internal leakage of the pump
Check the leak in the pump and
contact the Manufacturer.
Oil level too low
Check the oil level (Figure 14) and fill
it up if necessary.
The pump does
not reach
maximum
pressure.
Maximum pressure valve
improperly calibrated (for
the models where it is
present)
Contact the Manufacturer.
Oil leak in the hydraulic
system
Check the leak in the system and
repair it.
The pump works
under pressure,
but the load does
not move.
Excessive load Reduce the load.
The oil does not circulate
properly
Make sure there are no blocks in the
pipes and the cylinder is not faulty.
The piston
retracts even if
the unloading
pedal is not
pressed.
Oil leak in the hydraulic
system
Check the leak in the system and
repair it.
Internal pump failure
Check the leak in the pump and
contact the Manufacturer.
The piston does
not return.
Oil supply line throttled or
plug improperly connected
Check the oil supply line.
If the return is due to
gravity, possible lack of load
on the cylinder
Load the cylinder.
Cylinder spring broken Check and repair the cylinder.
Cylinder release valve not
working
Check and repair the cylinder.
Internal pump failure
Check the leak in the pump and
contact the Manufacturer.
The pump
capacity is
insufficient.
The pump tank has not been
vented.
Vent the tank.