Yanmar 4LHA-HTP Operation Manual page 381

Chapter 3 Fuel Injection Equipment
6. Governing Mechanism
Idling operation
Fig. 27 Combination governor operation: idling operation
On releasing the accelerator pedal the control
lever is returned to the idling position and the
tension lever is freed.
Through the flyweights' centrifugal force the
governor sleeve pushes the starting lever. Af-
ter the start-idling spring has contacted the
tension lever, the combined forces of the start-
Tension lever
Flyweight
KJ
Governor sleeve
Starting lever
M2 (pivot)
Control sleeve
3-1-24
Start-idling spring
Starting spring
idling spring and the starting spring balance the
flyweights' centrifugal force and the starting
lever becomes stationary.
This starting lever movement moves the con-
trol sleeve directly in the fuel-decrease direc-
tion and stabilized idling operation can begin.
14LHA Series