Flowserve WG Series Limitorque - Manual (Page 9)

9
Limitorque WG Series Worm Gear Operator FCD LMENIM2101-02 – 1/15
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2.6 Setting Position Limit Stops – WG-00 Through WG-12
Refer to Figure 2.4
1. Loosen the Hex Nut (pc# 16) and turn it several turns to allow for stop screw adjustment.
2. Adjust the Stop Screw by turning it counterclockwise to back the screw away from the Worm Gear/Drive Sleeve (pc# 5).
3. Place the valve disk in the full closed position.
4. Turn the Stop Screw (pc# 15) in the clockwise direction until the end of the screw contacts the Worm Gear/Drive Sleeve.
5. Tighten the Hex Nut to secure the closed set position.
6. Move the valve disk to the full open position.
7. Follow steps 1 through 5.
a CAUTION: If the valve is operated with an electric actuator/gear operator combination, and the valve is position-seated,
set the actuator limit switches to trip prior to engagement of the WG Worm Gear/Drive Sleeve with the Stop Screws.
Damage to the operator could result from the Worm Gear/Drive Sleeve contacting the Stop Screw under motorized
operation.
Note: The stops are adjustable to +/- 5º of total travel to allow for proper positioning
of the worm gear quadrant.
Figure 2.4 – Setting Position Limit Stops – WG-00 through WG-12
21
2
20
8
17
17
10
9
27
24
25
3
7
19
22
11
1
11
22
6
5
32
23
16
15
4
31 18
14 29
12
9
30
28 13
28 13