Long Stroke Sliding-Stem Actuator Mounting Type 585C And 470-16 - Emerson Fisher 4200 Series Instruction Manual

4200 Series Transmitters
screws (key 32) holding the transmitter to the
mounting plate (key 21).
5. Slide the coupler (key 52) over the potentiometer
shaft and into the hole in the mounting plate
(key 21). Slide the coupling (key 54) onto the plate
assembly pin and attach the coupling to the plate
assembly pin using the set screw.
6. Slide the coupler (key 52) into the coupling
(key 54). The coupling should not be deflected in
any direction when installed. Do not tighten the
coupling set screw (key 53) as it will be tightened
during the potentiometer alignment procedure.
7. Perform the electrical connections and
potentiometer alignment procedures.
Long Stroke Sliding-Stem Type 585C
and 470-16 Actuator Mounting, Types
4220, 4221, and 4222
Use the following general procedures and figure 22
to mount the transmitter on long stroke sliding-stem
Type 585C and 470-16 actuators with 105 to 206
mm (4.125 to 8.125 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 bracket (key 60) to the stem
connector on the actuator stem. To do this, first
replace the existing stem connector cap screws with
studs (key 78). Slide the cable bracket (key 60) over
the studs (key 78) before installing the nuts (key 71).
Tighten the nuts (key 71).
3. If necessary, refer to the appropriate actuator
instruction manual for the procedure to reconnect
the actuator stem to the valve stem.
8
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 (key 63) to the actuator
using hex head cap screws (key 32). 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 bracket (key 60) 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 it's 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 cable cover assembly (key 64) on to
the mounting plate (key 63) with the two machine
screws (key 81). Attach the lower end of the cable
cover assembly (key 64) to the actuator yoke with
the cap screw (key 82). Note: Some actuators may
require additional pieces to fully cover the yoke.
14. Perform the electrical connections.
Instruction Manual
Form 5596
July 2005