Instruction Manual
D100324X012
1061 F & G Actuator
October 2012
10
2. Remove the access plate (key 72). Also remove the machine screws (key 73) if present.
Note
The cover (key 34) supports the outer end of the valve shaft and should not be removed during actuator adjustment.
3. Stroke the actuator until you can reach the lower hex nut (key 11) through the access opening. Loosen the hex nut.
4. Stroke the actuator until you can reach the left-hand threaded upper hex nut (key 71) through the access opening.
Loosen the hex nut.
5. Perform one of the following:
a. Push-down-to-close (extending piston rod closes the valve): Slowly stroke the actuator to the down travel stop.
Refer to the appropriate valve instruction manual to determine the closed position of the valve. Adjust the
turnbuckle (key 70) until the valve is in the closed position. Lock this adjustment with the left-hand threaded hex
nut (key 71). Stroke the actuator to the up travel stop, and tighten the lower hex nut (key 11). Check thread
engagement distance. The thread engagement should be the distance of the diameter of the thread. Tighten the
lower hex nut (key 11) using the torque values shown in table 3.
b. Push-down-to-open (extending piston rod opens the valve): Stroke the actuator to the up travel stop. Refer to
the appropriate valve instruction manual to determine the closed position of the valve. Check the valve position.
Stroke the actuator until you reach the turnbuckle (key 70) through the access opening. Adjust the linkage.
Stroke the actuator to the up travel stop again, and check the new adjustment. Continue this procedure until the
valve is in the closed position when the actuator piston is resting against the up travel stop. Check thread
engagement distance. The thread engagement should be the distance of the diameter of the thread. Tighten the
lower hex nut (key 11) using the torque values shown in table 3.
6. Replace the access plate (key 72).
7. Loosen the self-tapping screws (key 39), and adjust the travel indicator (key 38). Re-tighten the self-tapping screws.
CAUTION
If using a handwheel actuator, the valve shaft spline could be damaged if excessive torque is applied to the valve shaft by
the manual actuator while the 1061 power actuator is stopped at either end of travel. To protect the valve shaft, perform
the travel stop adjustment procedure found in the separate handwheel actuator instruction manual.
Maintenance
Actuator parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of
inspection and replacement depends upon the severity of service conditions. Instructions are given below for
disassembly and replacement of parts.
WARNING
Avoid personal injury or property damage from sudden r elease of process pressure or uncontrolled movement of parts.
Before performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
(24 paginas)
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