Governor – Generac Power Systems 53187 User Manual
Page 100
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PART 4
ENGINE FUEL SYSTEM
SECTION
4.3
GOVERNOR
Section 4.3
GOVERNOR
General
A mechanical all-speed governor is used, it is
housed in the gear case.
A flyw/eight assembly Is mounted on the camshaft.
Flyweight movement is transmitted to the injection
pump control rack by way of the slider, control lever and
link. A spring is attached to the arm complete and the
tension lever. The spring regulates flyweight move
ment.
Link
Tension lever
Arm
complete
Idling
Figure 1. Governor to Pum p Connections
By changing the set angle of the oovernor lever,
tension on the tension lever spring is cnanged. In this
manner, engine speed can be regulated by the gover
nor lever.
Governor Adjustment
Governor adjustment procedure may be found on
Page 1.9-2 of this manual (Part 1, Section 9). Governed
speed
adjustment
is
accomplished
by
limiting
the
movement of the arm complete.
Figure 2. The Engine Governor