Stübbe 145039, Руководство по эксплуатации, Страница: 12 / 14

Troubleshooting
8 Troubleshooting
WARNING
Risk of injury and poisoning due to hazardous or hot
media.
Use personal protective equipment when carrying out any
work on the
fi tting.
Safely collect the media and dispose of it in accordance
with environmental regulations.
Consult with the manufacturer regarding faults which are not
identi
fi ed in the following table, or which cannot be traced to
the indicated causes.
Error Possible cause Corrective action
Control connections mixed up Connect control connections
correctly.
Compressed air connection mixed up at
solenoid pilot valve Check compressed air connection
and correct if necessary
(
→ supplementary instructions
for drives).
Control function is not right
Electrical connection faulty Check electric connect and correct
if necessary (
→ supplementary
instructions for limit switch).
Medium escapes between housing and
diaphragm Housing screws too loose Tighten housing screws
(
→ 9.2 Tightening torques, Page 13).
Medium escapes at the drive Diaphragm leaky ( → 7.2.2 Fixing leaks in the port,
Page 11).
Control pressure too low Check compressed air supply.
Ensure suf
fi cient air pressure
( → 9.1.2 Control air connections,
Page 13).
Diaphragm leaky ( → 7.2.2 Fixing leaks in the port,
Page 11).
Fitting does not close completely
Drive defective Replace drive.
Tab. 5 Troubleshooting
12 MV 309 BA-2016.08.04 EN 300 156