TM 55-1930-209-14&P-21
m.
Disassemble governor variable speed spring housing as follows:
(1)
Refer to Figure 6-6 and withdraw variable speed spring, stops, spring plunger and shims from spring
housing.
(2)
Loosen bolt and withdraw speed control lever (Figure 6-6) from speed control lever shaft. Remove
Woodruff key from shaft.
(3)
Remove plain washer and seal from shaft.
(4)
On former spring housing, remove pipe plug in top of spring housing. On current spring housing, remove
one screw and lockwasher and remove spring housing cover and gasket. Then remove the setscrew from the spring
lever.
(5)
Support the spring housing on the bed of the press with the shaft up. Use a brass rod and press the shaft,
plug, and bearing from the housing. Remove the bearing from shaft and spring lever from the housing (Figure 6-6).
(6)
If required, second bearing may be pressed from housing (Figure 6-7).
6-8
Governor cleaning, inspection and repair
a.
Cleaning. Clean governor components.
b.
Inspection and repair
(1)
Inspect bearings.
(a)
Examine bearings for any signs of corrosion or pitting.
(b)
Lubricate each bearing with light engine oil.
(c)
While holding inner race stationary, revolve outer race slowly, by hand. If any sticking or roughness
is felt, replace bearing.
(2)
Inspect riser assembly.
(a)
Inspect riser thrust bearing for flat spots, corrosion, or excessive wear. If any of these conditions
exist, replace entire riser and bearing assembly.
(b)
Inspect weight carrier pins for wear and replace when necessary.
(3)
Inspect weight carrier, weights and retaining pins for wear.
(4)
Inspect drive end of weight shaft. Replace shaft if worn or rounded.
(5)
Inspect bushings in weight housing for excessive wear or corrosion.
(6)
Inspect spring seats, plungers, adjusting screws, locknuts and other parts of the control housing for defects.
(7)
Replace all worn or defective parts.
(8)
Replace all gaskets and seals.
6-9
