27
Maintenance, Troubleshooting
Warning!
for control function i – danger if control pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
To ensure a controlled restart, first pressurize the device with
•
control pressure, then switch on the medium.
Maintenance Work
10.2.
actuator:
The actuator is maintenance-free provided it is used according to these
operating instructions.
Wearing parts of the angle seat valve / straight seat valve:
Seals,
•
Pendulum disk.
•
If leaks occur, replace the particular wearing parts with an appro-
→
priate spare part (see Chapter
11.Spare parts
).
cleaning
10.2.1.
Commercially available cleaning agents can be used to clean the
outside.
note!
avoid causing damage with cleaning agents!
Before cleaning, check that the cleaning agents are compatible
•
with the housing materials and seals.
Malfunctions
10.3.
Malfunction
remedial action
Actuator does
not switch
Control air connection interchanged
2)
CFA: Connect lower control air connection
CFB: Connect upper control air connection
CFI: Lower control air connection: Open
Upper control air connection: Close
Control pressure too low
See pressure specifications on the rating
→
plate
Medium pressure too high
See pressure specifications on the rating
→
plate
Direction of flow interchanged
See direction or arrow on the rating plate
→
english
Type 2000/2002
Summary of Contents for Type 2000
Page 93: ......
