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4194S Controllers
July 2018
4. Remove the screw and washer (keys 19 and 20) that hold the adjustable set point pivot assembly (key 17) to the
frame.
5. Remove the set point pivot assembly (key 17).
6. Disconnect the nut that secures the relay nozzle tubing (key 18) into the frame (key 3).
7. While holding the proportional band knob, remove the screw and washer (keys 19 and 20) that hold the relay
nozzle tubing assembly (key 18) to the frame.
8. Remove the proportional band knob nozzle pivot and set point beam assembly from controller.
9. Disconnect link number 2 from the input feedback beam assembly (key 11) shown in figure 4-8. Refer to figure 4-12
for location of the link.
Figure 4-8. Leveling Screw Alignment
FLAPPER LEVELING
SCREW NUMBER 2
W3450
10. Disconnect link number 4 from the bellows bracket (key 31). Refer to figure 4-12 for location of the link.
11. Remove the screw (key 12) with washer (key 13) from the flexure pivot assembly (key 9). See figure 4-8 for screw
location.
12. Remove the input feedback assembly as shown in figure 4-9.
13. Remove the four screws (key 10), shown in figure 4-9 that hold the flexure pivot assembly to the frame.
14. Remove the flexure pivot assembly (key 9).
15. Install the replacement flexure pivot assembly with the four screws (key 10). Do not tighten the screws.
16. Move the flexure pivot assembly toward the relay as far as possible, and tighten the four screws (key 10).
17. Place the input feedback beam assembly (key 11) onto the flexure pivot assembly (key 9) with link 4 through the
square hole in the frame.
18. Install the screw (key 12) with the washer (key 13) through the input feedback beam assembly (key 11) into the
flexure pivot assembly (key 9). Do not tighten the screw.
32
INPUT FEEDBACK BEAM
ASSEMBLY (KEY 11)
FLEXURE PIVOT
ASSEMBLY SCREW
Instruction Manual
D200158X012
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