Faults, Cause and Remedy
7 — 3
06_0049_0802GB
Machine does not start when switched on. The ”tank pressure” gauge displays 3 to 10 bar.
The compressor makes a humming noise.
Cause Remedy
The power supply was
interrupted during operation.
Switch off the machine to depressurise the pressure line.
Restore the power supply.
Switch the machine on again.
Machine does not start when switched on. The ”working pressure” gauge displays 7 to 10 bar.
Cause Remedy
The pressure in the pressure
tank is too high.
Switch off the machine.
Open the drain valve to depressurise the tank.
Close the drain valve again.
Switch the machine on again.
When switched on, the machine starts up and then switches off again immediately.
Cause Remedy
Power surges (excess current).
Switch off the machine and wait for a short time.
Switch the machine on again.
Consult the relevant service department at Maschinenbau
Rudolf GmbH if the fault occurs more than once.
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