4TNV98 & 4TNE98 Diesel Engine Section 4. Fuel System185At No-Load Maximum Speed ControlFigure 7-28When the engine revolutions increase and theflyweight centrifugal force exceeds the governorspring set force, the governor sleeve moves tomake the governor lever assembly turn clockwisewith fulcrum M2. As a result, the control sleevemoves in the direction of no-injection (to the left) forcontrolling speed so as not to exceed the full-loadmaximum speed.When the accelerator pedal is not pressed downfully, the set force of the governor spring changesaccordingly in order to achieve governor controlbased on the governor spring set force duringpartial load operation.
