Governor Mechanism; Oc60-E2 - Kubota WSM OC60-E2 Workshop Manual

OC60-E2, OC95-E2, WSM

[5] GOVERNOR MECHANISM

(1) OC60-E2

A governor is a device which controls the fuel injection of an engine, depending on fluctuations in load, to keep the
engine speed and out put power at a constant level. The governor used for this engine is of mechanical type which
utilizes the balance between the centrifugal force of the governor weight and the tension of the springs. Its control
covers the entire speed range from idling to max rpm. The mechanism consists of the following component part :
governor weight, governor lever, governor spring, idle spring, fuel limiter with built in torque spring, speed control
lever, and others.
At Starting
When the speed control lever (1) is moved in the
direction A, the governor lever 1 (7) is pulled in the
direction C by the force of the governor spring (2). At
this time, the governor weight (9) has no active
centrifugal force, since the engine is not rotating. Thus,
the control rack (4) moves to the maximum fuel injection
position to facilitate starting of the engine.
M-10
ENGINE
(1) Speed Control Lever
(2) Governor Spring
(3) Governor Shaft
(4) Control Rack
(5) Fuel Limiter
(6) Idle Spring
(7) Governor Lever 1
(8) Governor Lever 3
(9) Governor Weight
(10) Spacer
(11) Cap
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