BUSHING-ECC 4528851 - Caterpillar

Illustration 1 g02583418
The gas regulator is on the right side of a CG137 Petroleum Engine
Check the fuel pressure before the gas pressure regulator and after the gas pressure regulator. Table 1 lists the fuel pressure that is required for the gas pressure regulator.
Table 1
Requirements for Fuel Pressure To the Gas Pressure Regulator
Fuel System Pressure
Compressor Inlet Fuel Delivery 10.3 to 34 2 kPa (1.50 to 5 0.25 psi) Pressure of the Fuel Supply To the Carburetor
The gas pressure regulator maintains a pressure differential between the air and the fuel that is supplied to the carburetor. After setting, the gas pressure regulator will maintain the pressure differential in response to changes in the air pressure.Natural Gas
Set the pressure of the fuel supply using the chart found in Special Instructions, REHS6590.