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Burkert Type 8691 User Manual

Page 18

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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