CLAMP-TORQUE 3928900 - Caterpillar

Illustration 22 g03402781
Turn the dial until the desired trip pressure is opposite of the white arrow of the dial face.
After readjusting the set point for normal operation, verify that the gas pressure switch operates as adjusted. Note: Use the upstream pressure gauge to verify proper operation of the pressure switch.
Reinstall the clear cover. Valve Proving System Tightness Controller
Illustration 23 g03402789
(F) Valve Proving System The valve proving system (VPS) mounts to the side of the GSOV and is used to verify that both