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The operating speed governing lever can control the engine operation. When the lever is at the position
of the idle speed limit screw, the engine is operation at idle speed. When the lever is at the position of
maximum fuel supply, the engine is running at the maximum idle speed(the maximum speed rate
without load). The engine speed will be reduced with the increase of load. When the engine is operating
with rated power, its speed is reaching the rated speed. The location of the limit screw has been well
adjusted before delivery. Don’t modify it during operation.
Shut-down lever is fitted on the governor shell. Pull the lever to shut down the engine.
Respirator is installed on top of the governor cover and fuel drainage plug is fixed at the bottom.
Because the governor seat is connected with the fuel pump, when the fuel indicating window of fuel
injection pump shows the fuel level, the oil level of governor can also be enough for lubricating.
(2) Electronic governor
Diesel engine equipped with electronic governor can control the fuel injection by connecting the
electro-mechanical actuator to the fuel injection pump. The electronic governor can obtain the speed
signal by magneto-electrical sensor (typically installed near the flywheel gear ring for testing).
Comparing the tested speed with the rated speed, the electronic governor can make relevant adjustment.
Once the engine speed reaches the rated value, the electronic governor can promptly respond to the
change of load and instantly get back to a stable status. The electronic governor can also provide users
with strategy of smoke intensity reduction for engine start, overload protection and fuel limit function.
Wiring diagram of governor
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