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9.1 Trouble-shooting
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 difficult 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.
PROBLEM
1.0
The valve doesn't close
2.0
The valve stays closed
The valve does not close
3.0
completely
Air leakage from the
4.0
valve
VM
9.0 INFORMATION REGARDING FAULTS
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 suffered no damages.
Make sure the pneumatic connection between the control unit and the valve
1.4
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.
Check the operation of the solenoid valve on the control unit, make sure the
2.1
solenoid valve is not burnt
Make sure the pneumatic connection between the control unit and the valve
2.2
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.
3.1
Make sure the hose has suffered no damages.
3.2
Check that the control pressure is suitable to the conveying pressure.
4.1
Make sure the hose has suffered no damages.
4.2
Check the connections to the flanges and the compressed air hose.
28
TOR.VM.--.M.A.0518.EN
SOLUTION
05.18
2
Issue: A
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