Instruction Manual
D103292X012
C1 Controllers and Transmitters
March 2017
39
13. Turn the proportional band adjustment knob to 10. If it cannot be turned to 10 loosen the spring adjustor (key 65).
14. Secure the bellows (key 52) with the bellows screws (key 53), making sure that the nozzle (key 54) is centered on
the flapper (key 40).
15. Unscrew the supply and output gauges (figure 22 or 23, key 2) and install new gauges with correct ranges.
16. Replace the subassembly in the case and secure with machine screws (figure 22 or 23, key 41). Re-install the
Bourdon tube if it was removed; refer to the Replacing the Bourdon Tube section. Reconnect all tubing.
17. Check all tubing connections and the bellows machine screws for leaks; tighten as necessary. Perform the
appropriate calibration procedures.
Figure 21. Beam/Cantilever Spring Assembly
OUTER FLEXURE
(KEY 68)
MACHINE SCREW
(KEY 51)
BEAM
(KEY 39)
INNER FLEXURE
(KEY 67)
CANTILEVER SPRING
(KEY 8)
GE34726-B
E1068
MACHINE SCREW
(KEY 51)
BELLOWS SPACER
(KEY 34)
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