Prebena AEROTAINER 245, Original Instructions Manual

Page: 58 / 192

Malfunctions
26
Malfunctions
WARNING
Operation of damaged or defective compressor can cause serious or fatal injuries.
f When a malfunction occurs immediately disconnect the compressor from the
power supply.
f Use the compressor only after fault removal.
WARNING!
Implementation of repair by unskilled workers can damage the compressor.
f
Ensure the repair of compressor is realized only by representatives of the manufacturer.
Malfunctions
When malfunction of compressor appear that you can not eliminate by lubricating and cleaning, you should
contact the Service Center of company Prebena.
f Do not perform any repair works with compressor on your own.
f Ensure removal of any faults of compressor by workers the Service Center of company Prebena.
Malfunctions overview
The following overview shows possible malfunctions and the necessary measures to eliminate them.
Malfunction Possible reason Solution
A Pressure drop in the receiver Air outflow through the pipeline and
receiver connections
►
Bring the compressor to maximum pressure.
►
Turn off the compressor.
►
Disconnect from the mains.
►
All connections to be greased with a brush dampened in
soap solution.
Air bubbles will show the place of the air outflow.
►
These connections to be firmly tightened.
►
If the air continues to enter, contact the service depart-
ment (see page 28).
B Air outlet from the pressure relay valve
when the compressor does not operate Leakage of reverse pneumatic valve
►
Relieve air from the receiver.
►
Remove the cap of reverse pneumatic valve.
►
Thoroughly clean the valve seat.
►
If necessary, replace the sealing element.
►
Set everything back.
C Air outlet from the pressure relay valve if
the compressor is running more than 1
minute Faulty idle running valve ► Change idle running valve.
D The compressor is turned off and does
not run anymore The motor protective breaker is
activated due to a malfunction
(overheating, low voltage, an exten-
sion cable is too long or has the
wrong section)
►
Interrupt flow of current through the pressure relay.
►
Let the compressor cool down.
►
In compressors with an external motor protective breaker:
activate it.
If with a new start the motor protective breaker is activated
again:
Е
►
Contact the service department (see page 28).
E After the maximum pressure is reached
and the compressor is not turned off, the
safety valve does not work. Disturbance of function or faulty
pressure relay.
►
Turn off the compressor.
►
Contact the service department (see page 28).
F The compressor is turned off and does
not run anymore The motor winding is burned out.
►
Contact the service department (see page 28).