Long-Stroke Sliding-Stem Actuator Mounting Fisher 585Cls And 490 - Emerson Fisher 4200 Instruction Manual

Instruction Manual
D200354X012
14. Perform the electrical connections.
Long‐Stroke Sliding‐Stem Fisher 585CLS and 490 Actuator Mounting, 4220, 4221, and 4222
Transmitters
Use the following general procedures and figure 23 to mount the transmitter on long‐stroke sliding‐stem 585CLS and
491 actuators with 229 to 610 mm (9 to 24 inches) travel.
CAUTION
To avoid damaging the potentiometer after the transmitter is mounted, do not stroke the actuator without first loosening
the socket screw set (key 100F) that fastens the coupling (key 100E) to the potentiometer shaft (key 5).
1. Stroke the actuator to mid‐stroke.
2. Bolt the cable clip (key 61) to the stem connector on the actuator stem. To do this, first replace the existing stem
connector cap screws with a stud (key 35). Slide the cable clip (key 61) over the stud (key 35) before installing the
nuts (key 73). Tighten the nuts.
3. If necessary, refer to the appropriate actuator instruction manual for the procedure to reconnect the actuator stem
to the valve stem.
4. Attach the cable transducer housing (key 100A) to the mounting plate (key 63) using cap screws (key 103) and hex
nuts (key 104).
5. Attach the mounting plate to the actuator using hex head cap screws (key 75). Note: Some actuators may require
spacers (key 101) between the mounting plate (key 63) and the actuator.
CAUTION
Free release of the cable (key 100B) will damage the transducer. Whenever the cable (key 100B) is extended, take steps to
ensure that free release does not happen.
6. Carefully pull the cable (key 100B) down to the cable clip (key 61) and attach it with the socket head cap screw
(key 102), the lock washer (key 83) and the nut (key 72).
7. Remove the four cap screws (key 100D) and the mounting plate (key 100C) from the cable transducer.
8. Mount the mounting plate (key 100C) to the transmitter using cap screws (key 105).
9. Verify that the actuator is still in the mid‐stroke position. Loosen the socket cap screws (key 100F) and rotate the
coupling until the socket cap screws (key 100F) can be accessed with a hex wrench through one of the openings in
the cable transducer housing (key 100A). Lock the coupling in place by tightening the inboard socket cap screw
(key 100F).
10. Turn the potentiometer shaft (key 5) to the midpoint of its range.
11. Carefully install the transmitter to the cable transducer housing (key 100A) making sure that the potentiometer
shaft (key 5) slides freely into the coupling (key 100E) and remains in the midpoint position. Reinstall the four cap
screws (key 100D).
12. Lock the coupling (key 100E) to the potentiometer shaft (key 5) by tightening the outer socket cap screw
(key 100F).
13. Install the lower yoke cover (key 69) on to actuator yoke with pan head machine screws (key 77) and washers
(key 86).
4200 Transmitters
March 2011
11