TM 5-3810-300-24&P-3
2.7.1 LIMITING SPEED GOVERNOR
arbor press. Start the shaft end bearing (70) in the
housing and over the end of the shaft with the
numbered side of the bearing facing away from the
shaft. Press the bearing in place with a sleeve that
bears against the inner race.
CAUTION: This bearing has thrust capacity in one
direction only. Be sure to install the bearing so that
the thrust shoulder (Fig. 10) is toward the governor
weights. Otherwise, the force exerted by the
weights will pull the inner race and ball assembly
away from the outer race and result in damage to
the bearing and erratic governor operation.
6.
Place the washer (72), Fig. 9, over the bearing
retaining bolt (71). Thread the bolt into the tapped
Fig. 10 - Governor Weight Shaft Bearing
end of the shaft and tighten it. Bend the tang on the
Place two flat washers (78) on the pin next
washer against the head of the bolt.
to the low speed weights.
7.
Place a gasket (82) in the housing, against the
bearing. Apply Loctite sealant grade HV or
Install the high speed weights (273) on their shafts
equivalent to the full 360 circumference of the plug
after installing the needle bearings or bushings.
and thread the plug into the tapped end of the
governor weight housing. Tighten the plug to 45 lb-
Place the high speed weight on the pin and slide
ft torque.
the pin through the weight.
Install Governor
Place two more flat washers on the pin between
the high speed weights and the carrier. Slide the
1.
Affix a new gasket (62), Fig. 9, to the governor
pin through the washers and into the carrier.
weight housing. Start the splined end of the weight
shaft in the upper blower rotor and position the
Align the indentation in the pin with the set screw
housing against the blower end plate (Fig. 2).
hole in the low speed weights. Apply a sealant
2.
Place a new copper gasket on each weight
such as Loctite grade C or CV or equivalent on the
housing-to-blower bolt and thread the bolts into the
threads of the set screw (274). Insert the set
blower end plate, finger tight only.
screw and tighten it to 20 lb-in minimum. Be sure
3.
Place a new gasket (61), Fig. 9, over the dowels
to stake the set screw in two places after
and against the side of the weight housing facing
tightening the screws.
the engine.
NOTE: Before applying the sealant to a new set
4.
Move the thrust bearing assembly and riser toward
screw immerse the set screw in Loctite Primer
the weight end of the shaft.
T or equivalent.
5.
Position the lower end of the control housing over
2.
Slide the riser (67) over the shaft (66) and against
the dowel pins in the weight housing.
the finished surfaces of the governor weights (Fig.
NOTE 1:
The finished surface of the
operating fork must be placed against the
3.
Assemble the riser thrust bearing (60) on the weight
outer side of the thrust bearing as shown
shaft (66) with the bearing race with the smallest
in Fig. 1.
inside diameter against the thrust riser. Incorrect
installation of the bearing will result in erratic
NOTE 2:
Current
weight housings
operation of the governor.
have two ribs cast on the inner surface of
4.
Insert the weight carrier and shaft assembly (66) in
the housing to prevent any
the weight housing.
5.
Support the splined end of the shaft on the bed of
an
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