DeZurik M3 Manuel - Sayfa 7

Kontrolör DeZurik M3 için çevrimiçi göz atın veya pdf Manuel indirin. DeZurik M3 11 sayfaları.

Reassembly and Installation

11. Start shaft into actuator, installing internal parts on the shaft as follows:

a. M3 - thrust washer, collar (chamfer toward middle of actuator), smaller stop nut, yoke nut and

larger stop nut.

b. M7 - thrust washer, collar (chamfer toward middle of actuator), stop nut, yoke nut, stop nut and

collar (chamfer toward middle of actuator). If one collar has a "D" stamped on its O.D., it goes on

the shaft first.

12. Continue to rotate and push the shaft until its small end is inserted into the bearing in the opposite

end of the housing.

13. Move the collars along the shaft at both ends until the holes in the collars and shaft are aligned.

14. Drive the two pins into each collar.

15. Assemble actuator to obtain clockwise rotation to close the valve. With valve in fully closed position

and actuator assembled w/yoke, rotate shaft until yoke is in the fully CW position as viewed from

top of actuator. Make minor adjustments to align one of the keyways in the actuator yoke with the

single keyway in the valve shaft.

16. Drive the key between the valve shaft and the actuator yoke until it is flush with the top of the shaft.

Do not "mushroom" the end of the key.

17. Center punch end of valve shaft on each side of key to retain key in keyway.

18. Complete the assembly by following steps 2 -12 in Setting Stops.

Setting Position Stops

1. Remove yoke guide and guide blocks if present.

2. Thread stop nuts along shaft to get desired open and closed positions of valve. To get longer

stroke, move stop nuts toward middle of actuator.

3. Install guide blocks and yoke guide, and start screws into actuator. Leave screws loose.

4. Operate valve to full open and closed positions to check locations of stop nuts.

5. If open or closed position is not satisfactory, follow steps 1 through 4 above. If open and closed

positions are both satisfactory, go to next step.

6. Tighten screws for guide blocks (on 450-foot-pound style only) and yoke guide as follows: while

using a screwdriver to hold the yoke guide and guide blocks away from the actuator shaft, tighten

the screws.

7. Move the actuator to the closed position.

8. Fill actuator with lubricant.

9. Clean the mating surfaces on the actuator housing and cover.

10. Using RTV or another silicone-based sealant, form a gasket on the mating surface of the actuator

housing.

11. Install the actuator cover assembly.

February 2017

M-Series Manual Actuator

(Continued)

Page 7

DeZURIK

D10287