As the spring lever and control lever are mounted on the same shaft, when the control lever is turned towards full, the governor spring is pulled and the load gradually increases. Since the tension lever can move freely around the governor shaft on the player bearing, as speed increases and the shifter is pushed to the left the tension lever rotates clockwise, and when speed decreases the tension lever rotates counterclockwise. The governor lever rotates smoothly on the second shaft installed on the tension leveb. The bottom part of this lever is in contact with the sleeve through the shifter, which is in contact with the bottom of the tension lever through the excess fuel spring.
It therefore moves with the tension lever according to increases decreases in engine speed. The top of the governor lever is connected to the fuel pump control rack through the governor link. The movement of the lever controls the volume of fuel injected by the pump. When speed increases the lever rotates clockwise to cause the control rack to reduce fuel and when speed decreases the lever rotates counterclockwise to cause the control rack to increase fuel, thus engine speed is controlled. The top of the tension lever comes in contact with the stopper built into the top of the governor case to limit the maximum fuel injection volume.
(1) Shape of control and stop levers The control and stop levers that operate the governor have different shapes depending on engine design and method of attachment, as seen in the pictures below. The motion of the control lever is regulated by the maximum speed adjustment bolt and the idling adjustment bolt. This maintains the necessary engine speed. 9