24
July 2020
Installation, Operation and Maintenance Manual
MAN616_EAC Rev. 5
Section 3: Operation and Use
Operation and Use
3.5.2 Angular Stroke Setting in Case of Two Travel Stop Screws
in the End Flange of Pneumatic Cylinder
!
WARNING
Do not change the setting in case of disassembly of the actuator of the valve.
To set the two travel stop screws in the ange of the pneumatic cylinder, proceed as
follows: (see Figure 18 and table 9 on page 26)
1. Supply pressure to the cylinder to reduce trust on the stop screws.
2. Unscrew the lock nuts (d) with a proper wrench (c2).
3. Adjust the travel stop screws (g) with a proper wrench (c1).
4. Rotate anticlockwise to increase the angular stroke, rotate clockwise to reduce it.
5. Verify that both travel stop screws protrude by the same distance from the cylinder
end ange face (f) by means of a caliber (h): (see Figure 19):
YES NO
(Both stop
screws must
rest against
the piston)
Figure 18