TM 5-3810-300-24&P-3
LIMITING SPEED GOVERNOR 2.7.1.2
the number on the bearing up. Insert bearing installer J
the lever and operating shaft assembly in the
21068 in the bearing and press the bearing in until the
control housing.
shoulder on the tool contacts the cover (Fig. 6).
4.
Position the operating fork over the lower end of the
operating shaft (Fig. 5) so the finished side of the
2.
Turn the cover over and start the second bearing,
fork finger will rest against the thrust bearing when
number side up, in the bearing bore. Press the
assembled as shown in Fig. 1 of Section 2.7.1.
bearing in flush with the cover with tool J 21068.
5.
Support the operating shaft and control housing in
an arbor press with the upper end of the operating
NOTE: Do not use impact tools to install needle
shaft resting on a steel block. Align the flat in the
bearings.
operating fork with the flat on the operating shaft;
then, place a sleeve over the end of the shaft and
3.
Install the plug in the throttle shaft.
rest it on the fork. Bring the ram of the press down
4.
Pack the needle bearings with grease. Then, slide
on the sleeve and press the fork straight down and
the throttle shaft assembly through the bearings.
tight against the shoulder on the shaft.
5.
Install two retaining washers and retaining ring on
the throttle shaft.
6.
Tighten the fork set screw, if used.
6.
Install the spacer on the shaft (slip fit) against the
retaining washers and over the snap ring.
7.
Apply a good quality sealant around the periphery of
the expansion plug (Fig. 5) and press the plug into
NOTE: Prior to September 1970 a spacer
the lower end of the control housing.
was not used.
When assembling a
governor cover on an engine built prior to
8.
Place a lock washer and flat washer over the
September 1970 include a .440" thick
retaining screw. Thread the screw in the control
spacer.
housing to secure the operating shaft bearing.
7.
Lubricate the stop lever shaft with engine oil and
9.
Place the differential lever over the pivot pin of the
slide the shaft through the cover.
operating lever (Fig. 5). Install a plain washer and
8.
Install a new seal ring over the shaft and in the
spring retainer.
cover, then install two seal retaining washers and a
retaining ring.
Assemble Governor Springs, Plungers, and
9.
Install the stop lever and speed control lever and
Adjusting Screws
tighten the clamping bolts.
1.
Thread the lock nut on the buffer screw and thread
Assemble Governor Control Housing
the buffer screw into the governor control housing.
1.
Place a washer (Fig. 5) over' the short finished end
2.
Thread the idle speed adjusting screw into the high
of the operating shaft. Start the bearing over the
speed spring plunger; then, thread the lock nut on
end of the shaft. Support the opposite end of the
the end of the adjusting screw.
shaft on the bed of a press. Press the bearing on
shaft tight against washer with a sleeve which has
3.
Slip the high speed spring, spring guide, and
the same diameter as the bearing inner race.
governor spring retainer over the end of the
2.
With the pivot pin in the operating lever up, start the
plunger.
lever over the end of shaft with the flat on shaft
registering with flat surface in the lever. Press the
4.
Insert the low speed spring seat, low speed spring,
lever on the shaft tight against bearing.
and spring cap in the other end of the plunger.
3.
Lubricate the bearing and operating shaft bushing in
the housing with clean engine oil. Insert
5.
Slip the low speed spring end of the assembly
through the control housing. Then, thread the high
speed spring retainer into the control housing, using
tool J 1652-01.
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