Technical data

GOVERNOR SYSTEM
l: CONSTRUCTION
Operation of the governor maintains the engine speed constant as the centrifugal force acting on the
governor weights, according to the engine speed balances with the tension of the governor spring.
If the engine speed increases, the governor weights will open, forcing the sliding shaft forward.
Therefore, the injection pump control rack, linked to the sliding shaft through the governor lever
assembly, tie rod and spring, is moved in the direction that less fuel is injected. The movement of the
governor lever is stopped at a point where the centrifugal force of the governor weight balances with
the tension of the governor spring.
When engine speed is decreased by an overload, the control rack is pushed against the small set spring
in the direction that more fuel is injected.
(1) Injection pump
(2) Stopper spring
(3) Tie rod
(4) Governor lever
(5) Governor weight
(6) Sliding shaft
(7) Gear case
(8) Governor shaft
(9) Pump gear
(10) Pump camshaft
(11) Idle gear
(12) Needle bearing
(13) Needle bearing
(14) Governor spring
(15) Speed control lever