SOR Pivot Seal Weatherproof Pressure Switch User Manual
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Form 1521 (05.13) ©SOR Inc.
NOTE: If you suspect that a product is defective, contact the factory or the SOR
®
Representative
in your area for a return authorization number (RMA). This product should only be installed by
trained and competent personnel.
Remove switch from service.
Clean exterior of switch.
Reduce set point of switch to minimum by backing the Adjusting Nut all the way
toward the microswitch. This is for pressure only.
Flush all fluid from Pressure Port using suitable solvent when necessary.
Dry Pressure Port area with compressed air.
It is not recommended that more than one switch be worked on at any one time
to avoid the interchanging of parts. This would cause the units not to function
correctly. It is recommended the replacement of the parts be done on one unit and
tested. If the unit functions correctly, you can then move on to the next one.
Place switch in a vise with Pressure Port fitting pointed up. Remove Pressure
Port fitting.
Remove “O” Ring and Diaphragms, observing order for reassembly.
Remove Pressure Switch from vise and, holding hand over opened portion of the
sensing element, turn switch over so internal parts of the sensing element fall into
your hand.
Remove stepped washer and spring from shaft.
Place new spring on shaft, seating properly in spring stop.
Replace stepped washer placing multi-stepped side toward the spring.
Again hold Pressure Switch with sensing element opening down.
Insert piston spring subassembly UP into sensing element. Watch for shaft to
come through the adjusting nut and approach the Micro Switch. While holding the
piston assembly in place, invert Pressure Switch and reclamp in vise.
Replace diaphragm(s) and “O” Ring in original order.
Install Pressure Port fitting.
Re-adjust Adjusting Nut inside to set pressure desired.
Switch should function properly.