Mitsubishi 4DQ50 Service Manual page 40

and lower parts touch to the spring seat and act to reduce the control spring
force by torque spring force.
Stop lever, which is installed to the upper parts of governor housing, pull back
the control rack to the position "stop".
Stop lever shaft
Fig. 3·28
Start spring
Floating lever
Camshaft bushing
Mechanism of RUV governor
Torque spring
Control spring
Supporting point B
Slip disk Spring seat
Angleich spring
Governor sleeve
Flyweight
Full load stopper
Supporting lever
Stopper
Stopper bolt Supporting point A
Fig. 3-29 RUV governor, movement of idling
Oil inlet
Floatiag lever
Bearing bushing
3) Fig. 3·29 shows the situation of idling. Flyweight, though it is lower speed,
expand to the outside by centrifugal force, overcome weak spring force and
push the governor sleeve to the right hand with spring lever.
Therefore floating lever's supporting point (B), which touch to governor sleeve,
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