Yanmar 4LHA-HTP Operation Manual page 382

Chapter 3 Fuel Injection Equipment
6. Governing Mechanism
Partial load operation
Fig. 28 Combination governor operation: partial load operation
In the speed range exceeding idling the start-
ing spring and the start-idling spring are already
compressed, and the starting lever and the
tension lever, which are in contact at the con-
vex point A, both move together as one. (Fig.
28)
Partial load spring
Control lever shaft
Flyweight ^ U J ^ W ^ U ^ j j
A
KJ
Governor sleeve
Starting lever
M2 (pivot)
Control sleeve
Yoke
Damper spring
Start-idling spring
Point A
Starting spring
ft-J
Tension lever
Therefore, during partial load operation the
damper spring and the partial load spring are
acted upon by (and oppose) the flyweights'
centrifugal force.
3-1-25
, 4LHA Serie.