Fisher 1052PSV Instruction Manual page 9

Instruction Manual
D103407X012
3. Release all pressure from the actuator by venting the casing to atmosphere, making sure the diaphragm is against
its up travel stop. Check the valve position using a digital protractor, to align the horizontal edge of the hub (key 29)
to a flat surface on the top of the valve body (key 1 of the valve assembly). Refer to figure 6.
4. If the two surfaces are not within 0.3 degrees, adjust the turnbuckle (key 57) with a 1-5/16 inch wrench and
recheck. Continue this procedure until the valve is in the closed position when the actuator is resting on its up travel
stop.
Figure 7. Accessory Mounting - Fisher 546NS, 2625NS, and 3610J
5. Stroke the actuator to mid­travel to gain better access to the turnbuckle and locknuts for tightening. Tighten the
7/8­14­LH locknut (key 58) to 163 NSm (120 lbfSft) with a 1-5/16 inch wrench and then tighten the 5/8­18 locknut
(key 16) to 61 NSm (45 lbfSft) with a 15/16 inch wrench.
6. Install the travel indicator scale (key 35) and secure with self-tapping screws (key 36). Refer to figure 10 for proper
orientation.
1052PSV Actuator
May 2011
9