Operating manual number
057-2-6-0001-R0
Page 37
Version 2021
EN
8.5.2 AIR PUMP
PROBLEM
PROBABLE CAUSE
REMEDY
The pump does
not start.
The compressed air line is
closed or blocked.
Verify that compressed enters the
pump.
The pump locks
under load.
Air pressure too low
Check that the supply pressure (air) is
between 6 and 10 bar.
Dirty or clogged air filter
Clean or replace the filter.
The pump works
but does not send
oil under
pressure.
Oil leak in the main hydraulic
system
Check for oil leakage and repair where
necessary.
Internal leakage of the pump
Return the pump to the Manufacturer
for repair.
Oil level too low
Check the oil level and fill it up if
necessary.
The pump does
not reach
maximum
pressure.
Air pressure too low
Check that the supply of air pressure
is between 6 and 10 bar.
Internal safety valve outside
calibration
Contact the Manufacturer.
Oil leak in the main system
Check for leakage and repair where
necessary.
The pump goes
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 does
not retract even if
the pedal or
return button is
pressed.
If the return is due to
gravity, possible lack of load
on the cylinder.
Check the oil supply line.
Return spring broken
Return the pump to the Manufacturer
for repair.
The pump
capacity is
insufficient.
Air pressure too low
Check that the supply of air pressure
is between 6 and 10 bar.
Dirty or clogged air filter
Clean or replace the air filter.
Summary of Contents for M516-001
Page 19: ...Operating manual number 057 2 6 0001 R0 Page 19 Version 2021 EN blanked ...
Page 42: ...Manuale Operativo nr 057 2 6 0001 R0 Versione 2017 Pag 42 ...
Page 45: ...EN SPARES TECHNICAL DESIGNS ...
Page 46: ......
Page 47: ......
Page 48: ......
Page 49: ......
Page 50: ......