Changing Cam Position - Emerson Fisher 3582 Instruction Manual

3582, 582i, and 3583
HOLES FOR MOUNTING
PLATE TO ACTUATOR
HOLES FOR MOUNTING
POSITIONER TO PLATE
BF2635-B/DOC
MOUNTING PLATE FOR MOUNTING POSITIONER
WITH INTEGRALLY MOUNTED FILTER REGULATOR
Figure 5. Mounting Plates Used with Fisher 3582 Valve Positioners and 3583 Valve Stem Position Transmitters
30 DEGREES
30 DEGREES
NOTES:
MAXIMUM ROTATION FROM MID-TRAVEL POSITION.
ALIGN INDEX MARKS AS SHOWN FOR MID-TRAVEL POSITION.
70CA0750-C
A2452-2/IL
Figure 6. Rotary Shaft Arm and Case Index Marks

Changing Cam Position

Refer to figure 20 for a typical cam illustration and
key number locations.
D For Valve Positioners: The small
arrow on the cam must point in the
direction of stem movement with
increasing actuator diaphragm
pressure.
14
CASE INDEX MARKS
0-DEGREE
ARM INDEX
MARKS
30-DEGREE
ARM INDEX
MARKS
ARM AT MID-TRAVEL POSITION
ACTUATOR STEM TRAVEL INDEXES
Note
HOLES FOR
MOUNTING REGULATOR
HOLES FOR MOUNTING
PLATE TO ACTUATOR
HOLES FOR MOUNTING
POSITIONER TO PLATE
MOUNTING PLATE FOR MOUNTING POSITIONER WITH
SEPARATELY MOUNTED FILTER REGULATOR
D For Valve Stem Position
Transmitters: If the arrow on the cam
points up toward the nozzle, output
pressure increases with downward
stem movement. If the arrow points
down, output pressure decreases with
downward stem movement.
If the arrow is pointing in the wrong
direction, use the following procedure
to remove, reverse, and re-install the
cam.
When mounting a valve positioner or valve stem
position transmitter, check to see if the correct cam
(key 4) and cam position has been selected. To
change the cam or cam position, unhook the
extension spring (key 38), and remove the cam bolt
and locking nut (keys 6 and 45). Remove the cam
and spring retainer bracket (key 43).
To install the cam, screw the locking nut all the way
onto the cam bolt. Attach the cam and spring
retainer bracket to the shaft assembly with the cam
bolt. Tighten the bolt to secure the cam. Then,
tighten the locking nut against the spring retainer
bracket. Hook the spring into the spring retainer
bracket.
Details on cam characteristics can be found in the
cam information portion of the operating information
section.
Instruction Manual
June 2010
SET NO. 1
SET NO. 2
SET NO. 3
SET NO. 4