Replacing The Nozzle O-Ring; Replacing The Relay - Emerson Fisher 3582i Instruction Manual

Instruction Manual
D200138X012
1. Remove the screw (key 34G), and lift out the bypass handle or manifold.
2. Remove the gasket.
3. Apply lubricant (key 94) to both sides of the replacement gasket when used with the bypass assembly of 3582 valve
positioners. Do not apply lubricant to the gasket when the bypass assembly is not used.
4. Set the new gasket in place on the four locating pins and replace the bypass handle or manifold.
The case gasket (key 104) is located between the case (key 1 in figure 21) and the bypass block (key 34A) in a 3582
valve positioner or a 3583 valve stem position transmitter or the housing of the 582i converter (key 1 in figure 26).
5. Remove the two mounting screws (key 105 in figures 24 and 25; key 11 in figure 26) that hold the bypass block or
converter housing to the case and remove the unit to expose the case gasket.
6. Install a new gasket and replace the bypass block or converter housing.
Replacing the Nozzle O‐Ring
Unless otherwise noted, key numbers are shown in figures 20 and 22.
1. Remove the two screws (key 19C) that hold the flapper and follower assembly (keys 19B and 19G) to the
adjustment arm (key 19A).
CAUTION
For proper operation, be careful not to bend or twist the flapper or nick the nozzle orifice during reassembly.
2. Carefully remove the flapper and follower assembly for access to the nozzle (key 18 in figure 21).
3. Loosen the locking nut (key 71), and unscrew the nozzle (key 18).
4. Remove the locking sleeve (key 72) from the nozzle adaptor (key 3). The nozzle adaptor is bonded to the positioner
case with adhesive (key 96) and should not be removed.
5. Inspect the O‐ring (key 73) on the nozzle adapter and replace the O‐ring, if necessary. If replacing the O‐ring, apply
lubricant (key 94) to the O‐ring before installing it on the nozzle adapter.
6. Reinstall the nozzle onto the nozzle adapter, leaving the locking nut loose.
7. Replace the flapper and follower assembly. Make sure the letter "T" on the flapper is visible from the front of the
positioner or transmitter.
8. Perform the beam alignment and calibration procedures in the Calibration of Valve Positioner or Valve Stem
Position Transmitter section.

Replacing the Relay

Note
The relay is not field repairable. If the relay is defective, replace the relay.
Use the following procedure to replace the relay assembly. Refer to figure 21 for key number locations, unless
otherwise noted.
3582, 582i, and 3583
January 2013
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