28
85
30
41
100
30
41
135
30
30
175
30
30
235
30
30
Installation, Operation and Maintenance Manual
MAN 564 Rev. 6
June 2020
Operation and Use
Section 3: Operation and Use
For the adjustment of the travel stop screws proceed as follows:
1)
Loosen the lock nut (2) with a proper wrench (c2).
2)
If the actuator angular stroke is stopped before reaching the end position (fully
open or closed), unscrew the stop screw (1) by turning it anticlockwise with a
proper wrench (c1), until the valve reaches the right position. When unscrewing
the stop screw, keep the lock nut still with a wrench so that the sealing washer (3)
does not withdraw together with the screw.
3)
If the actuator angular stroke is stopped beyond the end position (fully open or
closed valve), screw the stop screw by turning it clockwise until the valve reaches
the right position.
4)
Tighten the lock nut (2).
Table 11.
Pneumatic cylinder size
Wrench c1 (mm)
Wrench c2 (mm)
Figure 26
