Champion SE582B Centrifugal Governor Unloader Weight

SE582B is a Champion governor weight designed for the centrifugal unloader assemblies used on Champion R-Series air compressors, specifically the R30, R40, and R70 pump models. This part functions as a governor weight that biases the centrifugal unloader valve to regulate unloader pressure as RPM changes, helping manage unloading during startup and operation. In Champion R-series service literature, SE582B is listed as WEIGHT, GOVERNOR within the centrifugal unloader group, and some parts diagrams show two governor weights in that assembly. The SE582B replacement weight is intended for use with R30, R40, and R70 pumps as part of the unloader mechanism and should be installed following the manufacturer’s service instructions to ensure proper valve seating and unloading performance. When servicing the governor and unloader, it’s common to inspect both weights in the unloader group alongside related components such as the governor spindle and release valve kit to maintain correct unloader function and pump start-up characteristics.