Instruction Manual
D200160X012
4195K Controllers
July 2018
97
1. Remove the two screws (key 6) and lift off the proportional band indicator cover (key 36).
2. Set the proportional band adjustment between DIRECT and REVERSE.
3. Remove the two screws (key 103) and remove the tie bar (key 106) from the remote set point assembly.
Aligning the Flexures
WARNING
Refer to the Maintenance WARNING on page 51.
1. Apply remote set point pressure equal to 50 percent of the remote set point pressure range.
2. The guide flexure (key 119) should be straight and horizontal. If not, straighten the flexure by loosening the
machine screw (key 122) on the end of the flexure that is attached to the top of the pivot assembly A (key 114) and
allow the flexure to straighten itself. Tighten the machine screw.
3. If the flexure is not horizontal, loosen the two machine screws (key 139) and raise or lower the pedestal assembly
(key 105) until the guide flexure is horizontal. Retighten the machine screws (key 139) and ensure the diaphragm
assembly extension (key 134) is centered in the upper travel stop (key 83) hole.
4. The drive flexure (key 79) should be straight. If not, proceed as follows:
a. Loosen the screw (key 118) on the adjustment arm of pivot assembly A (key 114) and loosen the screws holding
the drive flexure.
b. Set the length of the adjustment arm so that the drive flexure is parallel to the centerline of the diaphragm
capsule assembly (key 80).
c. Tighten the screw (key 118) on the adjustment arm.
Note
See figure 6‐20. The adjustment arm of the remote set point pivot assembly A turns on a bushing at each end of the shaft
supporting the adjustment arm. In the next step, position the shaft so both bushings “float” inside the bearings and do not rest
against the end of either bearing.
d. Hold the pivot assembly A shaft in the middle of the bushing end play. Be sure neither bushing is resting against
the inside end of either bearing.
e. Tighten the screws that hold the drive flexure in place.
Setting the Travel Stops
WARNING
Refer to the Maintenance WARNING on page 51.
1. Loosen the set screw (key 87) in the travel stop nut (key 86).