Realignment of the control head, Recommended auxiliary materials – Burkert Type 8681 User Manual

Page 25

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Installation

Check the secure fit of the sealing rings (in the upper and lower grooves).

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Mount the control head on the hub flange (seamlessly 360° rotatable).

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Secure control head with the two locking screws (shoulder screws M5) in the middle groove of the hub flange

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to prevent pulling off from the hub flange – tightening torque: max. 3.2 Nm (see

Fig. 7: Dimensional diagram

of the control head - process valve adaptation and 7.2.3. Realignment of the Control Head).

7.2.3.

realignment of the Control Head

If necessary, the control head can be realigned, in particular if properly accessible installation of the pneumatic supply
lines is not possible due to spatial conditions. This might also be required for operational aspects (accessibility of
the manual control) and because of electrical connection possibilities.
procedure:

Loosen the locking screws (shoulder screws M5) slightly until the underside of the screw head is flush with

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the auxiliary surface of the housing.

The locking screw has
been loosened sufficiently
if the lower side of the
screw head is flush with
the auxiliary surface of the
housing.

The locking screw is sufficiently
tightened when the upper side of
the screw head is flush with the
auxiliary surface of the housing.
Tightening torque: max. 3.2 Nm

Rotate the control head until the desired alignment has been achieved.

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Secure the control head with locking screws again until the upper side of the screw head is flush with the

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auxiliary surface of the housing. The locking screws have no sealing function. The control head is not fixed in
place by the locking screws; it is merely protected against being pulled off the hub flange.

assembly of the pneumatic and electrical Connections

7.2.4.

Pneumatic installation

See chapter

9. Pneumatic Installation

electrical installation

24 V DC: See chapter

10. 24 V DC - Design,

AS Interface: See chapter

11. AS Interface - Design

DeviceNet: See chapter

12. DeviceNet - Design