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Section 3: Disassembly Instructions
March 2019
Section 3: Installation Procedure
3.1
General Instructions
Refer to Figure 1.
1. Place valve in full closed position.
2. Install splined bushing (17) on valve shaft (and key). Tighten set screw (20) to secure
bushing to shaft.
3. Turn input shaft, rotate actuator drive sleeve (19) to full closed position. Indicator will
point to close. Mechanical stops should be preset for 90° of travel. If not, adjust at this
time. See disassembly instructions for adjustment procedure.
4. Remove dial indicator (16) to facilitate mounting to valve.
Note: WB units have no dial indicator.
5. Lower actuator on to splined shaft. Actuator is now ready for attachment to valve.
6. Once in place on valve, re-install indicator cover (16).
3.2
Stop Setting Procedure
1.
2.
3.
4.
5.
3
With actuator and valve in full closed position, remove stop screw cover bolt (12).
Remove jam screw (13).
Adjust stop screw (14) inward if valve is closed and the stop has not been engaged.
If valve is not fully closed, adjust the stop screw outward so the valve can be moved
to the full closed position. Once the valve is in full closed position, adjust the screw
inward until the screw touches the worm segment. Once the screw is in contact
(with valve fully closed), adjust outward 1 /2 turn.
Once the stop screw is set, install the jam screw (13) and tighten until secure.
Reinstall stop screw cover bolt (12).
Move the valve to the full open position and repeat the procedure for the open stop.
Installation, Operation and Maintenance Manual
MAN-02-10-92-0705-EN Rev. 0
Disassembly Instructions
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