Maintaining & Troubleshooting
Hardware Installation and Maintenance Manual B
–11
a. Hold the supporting wrench on the flange stable and parallel to
the surface. Do not move.
b. Turn the 7/8” wrench counterclockwise to loosen the pressure
sensor until it is able to be removed.
13. Remove excess seal tape from the flange opening and threads and
check galling. Refer to Figure B–7.
14. Remove the new pressure sensor from the packaging. Retain the
black connector cap on the sensor - do not remove.
15. Wrap stainless steel compatible PTFE tape around the threads at the
top of the pressure sensor, beginning from the base of the threads
to the top, approximately three times taking care to avoid covering
the top opening. Refer to Figure B–8.
16. Insert the new pressure sensor into the threaded flange keeping the
sensor parallel to the surface for proper fitting.
Threads showing signs of galling indicate a possible leak. Refer to
Refer to “Service Contact” on page B-22 for information to
arrange for repair.
Figure B–7 Removing excess seal tape from
flange
Figure B–8 Replacing seal tape
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