The K & C designs are readily adjustable throughout their prescribed range by loosening the knurled locking ring. Turning the electrical switch clockwise will lower the set point, turning it counterclockwise will increase the set point. When desired set point is reached, the as- sembly is locked again by tightening the knurled locking ring.
Entire adjustable range may be covered by rotating approximately 250° each side of the mean.
The knurled locking ring requires very little e ort to establish a reli- able locked position. By placing a wrench on the fitting hex to hold switch body in position, grip the knurled locking ring with pliers and turn counterclockwise to loosen or clockwise to tighten. Only a slight snug is required to lock in position.
To lower set point turn electrical switch counterclockwise. To raise set point turn electrical switch clockwise.
Slide spring clip cover down past adjusting ring window. Insert .093 inch dia. pin into adjusting ring radial hole. Pushing the pin to the right (counterclockwise) will lower the set point: to the le (clock- wise) will raise the set point. Align center of pin holes to the desired pressure. When desired set point is reached, remove pin and slide up the cover to close the adjusting ring window.
The standard field adjustable versions of the Guardian P/V Model P88 are easily adjusted throughout the prescribed pressure range by aligning the top of the knurled adjusting nut with the desired pres- sure setting indicated on the adjacent range scale.
All switches are easy to adjust. First, loosen the knurled locking ring. Now, set the sliding gauge pointer to the desired pressure point. Tighten the locking ring and the pressure (vacuum) switch is locked and ready to use.
NOTE: Little e ort is required to establish a reliable locked position. If tools are used, place a wrench on the hex nut under the switch to hold the switch body in place; then grip the knurled locking ring with pliers to tighten or loosen as desired.
Loosen knurled ring, set pointer to desired pres- sure and tighten ring to hold in position.
On P605 Models, insert the pin (provided) into the adjusting ring and align center of pin holes to the desired pres- sure.