probst SPEEDY VS-140/200 Instructions D'emploi page 82

Troubleshooting
Malfunction
Vacuum generator functioning,
but the load is not picked up.
Minimum vacuum -0,2 bar is not
reached.
Vacuum generation is not work-
ing.
34 / 41
Cause
The suction plate is not complete-
ly covered by the load. Air is leak-
ing in.
The filter screen is dirty.
Hose or screw unions are leaking.
Sealing lip on suction plate is
damaged.
Load has cracks, gaps or is porous.
Gauge is faulty.
Hose or screw unions are leaking.
Location of use is higher than
1600 m above sea level.
The main switch is set to OFF.
The electrical connection is defec-
tive.
Temperature monitoring has been
triggered.
Power consumption is elevated.
The vacuum generator is faulty.
52700015 / 52700016 / 52700017 / 52700018 / 52700019 / 52700020
Solution
 Position the lifting device on
the load so that the suction
plate is completely covered
by the load.
 Clean the filter screen.
 Replace or seal components.
 Replace suction plate.
The load cannot be handled with
this lifting device.
 Replace the gauge.
 Seal or replace components.
 Observe the maximum alti-
tude for location of use.
 Set the main switch to ON.
1. Check and repair the connec-
tion.
2. Check the power supply line.
 Allow the vacuum generator
to cool down.
1. Clean the filter screen.
2. Check the motor for faults.
 Check the vacuum generator
and contact Probst service if
necessary.