CiDRA SONARtrac PW VF-100 - Manual (Page 221)

d. Open the latches used to secure each half of the cover.
e. Remove each cover half.
11. For covers with bolted flanges either fiberglass or stainless steel:
a. Install spring clamps or vice grips on both of the cover
flanges to keep it from sliding or separating while removing
the cover bolts.
b. Remove the boot gasket band if removing a stainless steel
or fiberglass cover equipped with latches.
c. Remove the sensor cover bolts, nuts, and washers and then
remove the cover from the pipe. Replace sensor cable
access cover.
13. Use a hex driver or Allen wrench to unscrew the nine sensor
screws that hold the two rails of the sensor together. Unscrew
each screw a couple of turns until they are loosened. While the
screw threads are still engaged in the attachment rails a few turns,
spread the sensor rails apart and then continue to loosen the
screws until they are no longer engaged in the threads. (By doing
this, the o-ring that keeps the screws from coming out of the rails
will stay in place.) Use care to keep the fastener assembly intact.
If the spacers or Bellville washers do come off the screw refer to
the sensor band screw figure in the Sensor Installation section of
the manual for proper stack-up of components.
14. Remove the sensor band assembly from the pipe.
15. Slide the screw and washer assembly o-ring down the screw to
retain the screws in their holes.
16. The original packaging as described in Section 4.1 should be
used when storing / transporting the system. Contact Customer
Support for sensor packaging. If the original packaging is not
available, wrap the sensor band around a suitable sized mandrel
or lay the sensor band in the bottom of the cover and move it to
an area where it will not be damaged. Be careful to not put
permanent creases in the sensor band
17. Replace sensor band screws prior to re-installation of sensor
band.
18. Inspect and replace fiberglass cover gaskets as required.
19. Inspect and replace stainless steel cover flange gaskets as
required.
20837-01 Rev 02 Page 12-3