While the switch itself may be faulty (showing no continuity when cool)

factory-set at 150 PSI and 210°F

or if any signs of refrigerant weeping are detected at the valve flange

Turning the screw changes the internal bridge tension

What are the signs that my ICP axial fan needs replacement

Browning B 1 3/16 Bushing R-134A While the switch itself mayFor contractors requiring robust power transmission solutions, the Browning B 1 3 16 Split Taper Bushing is engineered for dependable performance in demanding HVACR systems. This B Series bushing features a precise 1 3 16 inch bore and a 1 4" x 1 8" keyseat, ensuring a secure, positive drive connection. Constructed from durable steel, sintered steel, or ductile iron, its solid flange and double split barrel design deliver superior shaft concentricity