Operating Instructions
Troubleshooting
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V4
GB
6
Troubleshooting
The device must be installed and maintained by qualified personnel such as mechanics and electricians only.
After each repair or maintenance job check the safety equipment.
Error
Cause
Remedy
Pump does not run
Engine is defective
Check the engine/call customer service
V-belt is broken/too loose
Replace/restretch the V-belt
Pump runs, but does
Slide valve is closed
Open it
not produce suction
Vacuum hose is defective, connectors
are not tight
Check, replace vacuum hose
Vacuum pressure does not
reach -0.6 bar
Workpiece has cracks, openings
or is porous
Workpiece is not suitable for suction
Seal is damaged
Replace the seal
Pressure gauge is defective
Replace the pressure gauge
V-belt is loose
Restretch the V-belt
Engine does not run
Fuel tank is empty
Refuel the tank
Engine does not run
Fuel valve is closed
Open the fuel valve
Engine is defective
Check the engine/call customer service
Petrol engine goes out and
immediate re-starting is not
possible
Gasoline supply interrupted
Check gasoline lines and fuel level in tank
Ignition coil is defective
Check ignition coil and if necessary
exchange
Warning device does not
function
See engine operating instructions (appendix)
Load cannot be sucked.
Prescribed negative pressure
cannot be achieved no more.
Negative pressure diminishes
itself too fast, when switching
the device off.
Leakage at vacuum plate by deposited
dirt between rubber seal and suction
plate.
Rubber seal wore or porously (aging
after effect of UV radiation)
Remove rubber seal from suction plate.
Clean suction plate and slot in rubber seal.
Draw up and fasten rubber seal on suction
plate again.
If necessary exchange rubber seal.