Burkert Type 8791 - Manual (Page 21)

21
Attachment and assembly
attaching the positioner with mounting bracket for actuators
with columnar yoke:
→
Attach mounting bracket to the columnar yoke with the U-bolt
⑦
,
washers
⑪
, circlips
⑩
and hexagon nuts 21
(see “Fig. 11”).
21
10
11
7
Fig. 11: Attach positioner with mounting bracket; for actuators with
columnar yoke
8.2.3. aligning lever mechanism
The lever mechanism cannot be correctly aligned until the
device has been connected electrically and pneumatically.
→
Move the actuator in manual mode to half stroke (according to
the scale on the actuator).
→
Adjust the height of the positioner until the lever is horizontal.
→
Fix the positioner in this position on the actuator.
8.3. attachment to a proportional valve
with rotary actuator
The axle of the position sensor integrated in the positioner is con-
nected directly to the axle of the rotary actuator.
The assembly bridge can be purchased from Bürkert as an
accessory by quoting the identification number 770294.
The attachment kit for the rotary actuators can be
purchased from Bürkert as an accessory by quoting the
identification number 787338.
The associated parts are listed in the “Tab. 9: Mounting kit
on rotary actuator”.
part no. Quantity name
1 1 Adapter
2 2 Setscrew DIN 913 M4 x 10
3 4 Cheese-head screw DIN 933 M6 x 12
4 4 Circlip B6
5 2 Hexagon nut DIN 985, M4
Tab. 9: Mounting kit on rotary actuator
english
Type 8791