Spool Valve Installation:
To change out or inspect spool valve, air supply to the positioner must be removed.
To remove spool valve:
1. Remove
screw
(1).
2. Carefully lift out entire spool valve assembly (2), disengaging spool (3) from balance arm (5).
To maintain highest performance, do not mix spool and block. Do not lubricate valve.
To Install new spool valve:
1. Ceck that O-rings are in place.
2. Insert spool valve assembly (2), making sure that the leaf spring (4) and balance arm (5) engage the slot in spool
(6).
3. Tighten screw (1).
4. Check for smooth operation of assembly.
I-P Installation:
All I-O modules are factory calibrated an cannot be adjusted. Kits are available to allow easy field installation of
various input options. Kits include modules, mounting hardware, fasteners, and O-rings.
1. disconnect signal and supply air from positioner.
2. Remove screw (1) from positioner housing.
3. Make sure O-rings (2) are seated correctly in I-P housing.
4. For weatherproof or intrinsically-safe I-P module, remove cover (4) to allow access to third mounting screw (5).
5. Attach I-P module (3) to positioner housing with three mounting screws (5) provided.
