DeZurik KSL Посібник - Сторінка 4

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DeZURIK

Manual Actuator for KSL Slurry Valves

Mounting Chainwheel on 2-6" Valves

2–6" Valves—See Figure 2

Two coiled spring pins (B18) provided by DeZURIK are used to connect the chainwheel (B12) to the

yoke sleeve (B3). The use of any other type of pin will result in actuator failure.

1. Rotate the yoke sleeve (B3) until the flange on the yoke sleeve touches the bottom of the adaptor

plate (B2).

2. Place the thrust washer (B4) and the wave washer (B5) over the yoke sleeve (B3) so they are on

top of the adaptor plate (B2).

3. Set the chainwheel (B12) in place. Turn the chainwheel so the holes in the chainwheel line up with

the pin grooves in the yoke sleeve (B3).

4. Insert a 5/16"-diameter bolt in one of the holes.

Note: This will prevent misalignment. If the holes are not aligned the pin grooves in the yoke sleeve

(B3) could be damaged by the coiled spring pins (B18) provided by DeZURIK.

WARNING!

This actuator has been designed to use only coiled spring pins provided by

DeZURIK. The use of any other brand or type of pin will result in actuator failure.

See Figure 1.

5. Drive a coiled spring pin (B18) provided by DeZURIK into the remaining hole in the chainwheel

(B12) until the end of the pin is flush with the outer surface of the chainwheel.

6. Remove the 5/16" bolt installed in Step 4, and drive a coiled spring pin (B18) provided by

DeZURIK into the hole.

7. Install top stop collar (B8) onto stem (B6) and secure position with set screws (B23). This stop

collar (B8) is to stop on top of the yoke sleeve (B3) when the valve is in the closed position. Refer

to installation drawing for gate closed measurement.

8. Insert the large hex-head retaining bolt (B33) through the 2.5-inch retaining washer (B32) and

stake the washer to the head of the bolt. This keeps the washer from sliding down the shaft of the

bolt when the valve is open (when the stem is extended upward).

9. Turn the 3/8-16 jam nut (B34) onto the retaining bolt/washer assembly. Turn the nut on far enough

to allow the bolt to be fully inserted into the valve stem (detailed in the next step).

10. Turn the retaining bolt assembly into the tapped hole on the valve stem until it bottoms out.

Tighten the jam nut firmly against the valve stem. This prevents the retaining bolt assembly (and

11.

the chainwheel) from being dislodged if the two coiled spring pins provided by DeZURIK are

damaged or fatigued.

Lubricate the actuator as described in the LUBRICATION section of these instructions.

12.

D11041

Page 4

July 2015