GOVERNOR - TM-10-3930-607-150058

ENGINE

cator to contact the housing bore and check in the same

manner. The same runout limit prevails. (Fig. 60)

ernor shaft on two hardened steel races. One race is a

flat surface, the other conical in shape. As the balls

move in and out they tend to raise or lower the conical

shaped race, the motion of which is transferred through

a fork or finger to the governing lever on the outside of

the governor housing. The force created by the balls in

their centrifugal movement is opposed by a spring on

the governing lever, the other end of which is hooked to

the speed adjusting screw lever, The balls move in a

slotted driver which is pinned to the governor shaft; the

two races are free floating on the shaft. When the

engine is running at a fixed speed, all parts go around

with the governor shaft and the thrust is taken on the

thrust bearing between conical shaped race and fork

base. When a change in speed due to change in load

takes place, the relative speed between the balls and

races is changed. Consequently, wear is distributed

over the entire operating surface of the races and balls.

Since the surfaces are hardened, little or no wear other

than a polish should ever take place on the parts.

B. ADJUSTMENT

Figure 60.

The hook-up of governor lever to carburetor lever

should be done in the following manner:

GOVERNOR

1. Make sure carburetor shaft does not stick nor

A. GENERAL (Fig. 61)

bind.

This governor differs from conventional centrifugal

2. With governor lever in its normal position under

governors principally in that round steel balls are used

spring tension, with engine shut-off, with carburetor

as the motivating force producer instead of masses of

lever in wide open throttle position, a rod of exact length

weight. The balls move out and in radially from the gov

to connect the two levers is inserted.

3. Make sure there is no bind nor sticking in the

assembly of rods and levers. This is very important

4. The spring tension is adjusted by repositioning

the spring anchor nuts. (Fig. 62)

Figure 61.

B-21