BLOCK 2992346 - Caterpillar

Illustration 1 g00281529
Governor
Remove cover (1) at the top of the governor.
Loosen the adjusting screw locknut under the cover.
Turn the adjusting screw counterclockwise in order to increase the cut-out pressure setting to 830 35 kPa (120 5 psi). If you need to decrease the cut-out pressure setting, turn adjusting screw clockwise.
Tighten the adjusting screw locknut in order to hold this adjustment. After you adjust the governor, check the cut-out pressure. If the cut-out pressure has not changed, then check for bad unloading valves. If the difference that is between the cut-out pressure and the cut-in pressure is not within the range of the specifications, check for a bad governor.Check the air pressure gauge on the machine. Check the test gauge that was installed in the drain valve of the primary air tank.Start the engine. Operate the engine until the cut-out pressure is reached. The indication on the air pressure gauge for the machine must be the equivalent of the indication on the test gauge. If there is more than a difference of 35 kPa (5 psi), install a new pressure sensor on a machine that is equipped with the Vital Information Management System (VIMS) or install a new air pressure gauge on the machine that is equipped with the Electronic Monitoring System (EMS).Note: The pressure switch on the EMS machine may also need to be changed.