SOR 141 Differential Pressure Switch - Manual (Page 4)

4/4 Form 1307 (04.13) ©SOR Inc.
14685 West 105th Street, Lenexa, KS 66215  913-888-2630  800-676-6794 USA  Fax 913-888-0767
Printed in USA sorinc.com
Cover Gasket Replacement
SOR provides one new replacement gasket (SOR P/N 8923-180) for each new switch. It
is recommended that the new gasket be installed upon installation of a new switch and
the old gasket be discarded. After that time, the gaskets must be replaced based on the
following schedule:
If Cover Is Not Removed
If the cover is not removed at any time, the gasket need not be replaced for up to five
years. Replace the cover gasket on or before five years from the installation date of a
new gasket.
If Cover Is Removed
The cover may be removed and reinstalled any number of times within a two-year
window without replacing the cover gasket. If the cover is removed within this two-year
window, the cover and gasket assembly must be reinstalled onto the same switch and it
must be oriented in the same way. After two years, the cover gasket must be replaced if
the cover is removed.
NOTE: When removing the cover, if the cover gasket is going to be reused, do not remove the
captive screws. Remove the cover, gasket, and captive screws as one assembly. Reinstall per the
above guidelines (same switch- same orientation).
Instructions For Replacement
Remove the four cover screws. Remove the old gasket. Place new gasket between housing
and cover. Line up holes in cover, gasket and housing. Insert the four screws and torque
each to 7-10 in-lbs.
Maintenance