Burkert Type 8691 User Manual
Page 18
18
Installation
2. install sealing rings
→
Pull the form seal onto the actuator cover (smaller diameter points upwards).
→
Check that the O-rings are correctly positioned in the pilot air ports.
When the control head is being installed, the collets of the pilot air ports must not be fitted to the actuator.
Form seal
Pilot air ports
Caution:
Collets must not be
fitted !
Installation of the form
seal
Figure 6:
Installing of the sealing rings, 21xx series
english
Type 8691
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