Mitsubishi 4DQ50 Service Manual page 44

Fig. 2
the length of the arm of moment against the revolving axis will change together with the
tension of the governor spring. This is because, as aforesaid, that the revolving center of the
swivel· lever and the spring-eye of the tension lever are eccentric each other. The set-load of
.the governor spring may adjust the adjsuting-screwof the knackel.
The stopper-bolt attached to the back of governor-cover may be adjusted so that it will
contact with the knuckle when the control-lever barely reaches its "STOP" position. In the
governor equipped with a stop-device, this stopper-bolt may be used as a idling-stopper. The
ungleich equipment may be screwed in the tension-lever if necessary.
This is a bush with a pin having the spring load and may be controlled from outside by
taking off the closing-cover of the governor-cover, as it is designed.
The ungleich device will amend the full-load jet volume of the injection pump within a
specified scope according to the set-load of the spring which is adjusted
by
the constant of
equipped spring, stroke and shim so as to be fit successively for the necessary volume of fuel
for engine between the r.p.m. of idling and that of full-load.
The adjustable screw bush is inserted in about the middle of the governor-cover, and the
idling-sub-spring which is involved in the bush may be adjusted so that it will affect the
control of non-load high-speed rotation as little as possible. However, in case when the
ungleich is unnecessary at the full load jetting volume but the firm control is needed at a
large stroke of control-rock at a lower r.p.m. of idling, a comparatively weak sprIng shall be
involved in the bush of the ungleich-device. This spring, in case when the engine is an idling
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