DeZURIK
M-Series Manual Actuator
Changing Actuator Mounting Positions
This actuator retains the stem packing in the valve.
Removing the actuator while the valve is under pressure can cause personal injury and
equipment damage. Relieve pressure in the valve before removing the actuator.
1. Relieve the pressure and flow in the pipeline.
2. Remove the cover screws and cover assembly from actuator.
3. Open the valve.
4. Inside the housing, remove the bolt and washer that was under the yoke.
5. Close the valve.
6. Remove the other three bolts.
7. Lift actuator off valve shaft and remove key from valve shaft or yoke.
8. Position actuator over shaft in desired position.
9. Install key (key has been staked, so some cleanup may be necessary).
10. On the outside of housing, install three bolts and lockwashers.
11. Open valve and install fourth bolt.
12. Clean the mating surfaces on the actuator housing and cover.
13. Using RTV or another silicone-based sealant, form a gasket on the mating surface of the
actuator housing. Install cover and fasten with bolts and washers.
D10287
Page 8
February 2017