An internal oil pump, relief-valve, and accumulator system controls governor operating pressure.

A self-contained sump stores oil and reduces contamination from outside sources.

Oil flow to and from the governor cylinder assembly is controlled by a centrifugal flyweight-head and pilot-valve assembly.

A power cylinder (servomotor) positions the fuel racks, fuel valve, or steam valve of the engine or turbine.

A pneumatic (direct or reverse) operated bellows-type mechanism sets governor speed.
A knob on the governor provides a means of manual speed adjustment. Governor stability is provided by an adjustable needle valve and spring-loaded buffer compensation system.