9.0 INFORMATION REGARDING FAULTS
VM
2
TOR.VM.--.M.A.0518.EN Issue: A
05.18
28
9.1 Trouble-shooting
PROBLEM SOLUTION
1.0 The valve doesn't close
1.1 Make sure the plant line is fed pressure
1.2 Check the operation of the solenoid valve on the control unit
1.3 Make sure the hose has suered no damages.
1.4
Make sure the pneumatic connection between the control unit and the valve
is free from obstruction or condensation and that the tube is not bent.
1.5 Check to make sure the pressure on the control unit is greater than 3 bar.
2.0 The valve stays closed
2.1
Check the operation of the solenoid valve on the control unit, make sure the
solenoid valve is not burnt
2.2
Make sure the pneumatic connection between the control unit and the valve
is free from obstruction or condensation and that the tube is not bent.
2.3 Make sure the outlet silencers on the control unit are free
2.4 Make sure the control unit is powered
2.5 Check to make sure the pressure on the control unit is greater than 3 bar.
3.0
The valve does not close
completely
3.1 Make sure the hose has suered no damages.
3.2 Check that the control pressure is suitable to the conveying pressure.
4.0
Air leakage from the
valve
4.1 Make sure the hose has suered no damages.
4.2 Check the connections to the anges and the compressed air hose.
Minor problems can be solved without consulting a specialist.
The following Table contains a list of the most common problems, the possible causes and possible remedies.
For particularly dicult actions which are not mentioned in the Table, contact the Manufacturer’s Customer
Service Department.
Danger - Warning
Before carrying out any operation “set the valve concerned in safety” (see “Glossary and termino-
logy”), operate according to the indications on the “Operation and Maintenance Manual” and in accor-
dance with and in compliance with the standards in force as regards health and safety.
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