Installation and Maintenance
Part Number: E2K-402-0313, Rev. A
Mar 2013
7
Section 3: Assembly To Valves
Assembly To Valves
3.2
Quarter Turn Valve
3.2.1 Stop Setting Procedure (Quarter-Turn)
Built-in mechanical stops are provided to prevent handwheel operation beyond
total valve travel (90° ± 6°). End of travel stops are independently adjusted, locked
in place and sealed.
Figure 4
Loosen both Locknuts (46) and back out the two Stopbolts (86) to allow the valve
to close and open fully. Ensure Electrical Travel Limit Switches have been properly
adjusted (see appropriate section of this manual), proceed as follows:
1)
Run the actuator electrically to the full Close.
2)
Screw the Close Stopbolt (86) in until it seats, then back off 1/2 turn.
Install Washer (48) and tighten Locknut (46).
3)
Run the actuator electrically to the full Open position.
4)
Screw the Open Stopbolt (86) in until it seats, then back off 1/2 turn.
Install Washer (48) and tighten Locknut (46).
Figure 5