TM 5-3810-300-24&P-3
2.7.1.2. LIMITING SPEED GOVERNOR
4.
Remove the bearing retaining screw, washer and
This bearing is specially designed to absorb thrust loads;
lock washer.
therefore, looseness between the mating parts does not
indicate excessive wear.
5.
Loosen the operating fork set screw, if used.
5.
Remove the bearing from the weight housing.
6.
Support the control housing as shown in Fig. 5 in
Section 2.7.1. Press the operating shaft from the
6.
Mark the weights and carrier with a center punch for
operating fork with a brass rod. Withdraw the shaft,
identification, also note the position of the thin
washer between the weights so that the parts can
lever and bearing as an assembly from the control
be replaced in their original position.
housing.
7.
Remove the set screw from the low speed weights.
7.
Support operating shaft and lever on bed of press
Withdraw the pins and governor weights.
(Fig. 6 in Section 2.7.1). Press the shaft from the
operating lever and bearing with a brass rod.
NOTE:
If necessary the needle bearing
assembly in the high speed weights may be
Disassemble Governor Weight Housing
removed at this time.
1.
Place the weight housing in a soft jawed vise.
8.
If required, the weight carrier may be pressed from
Remove the plug and gasket.
the governor weight shaft and a new carrier
installed.
2.
Straighten the tang on the lock washer and remove
Inspection
the bearing retaining bolt.
Clean all of the parts with fuel oil, and dry them
3.
Thread a 5/16"-24 x 3" bolt into the tapped end. of
with compressed air.
weight shaft. Support the weight housing on bed of
Revolve the ball bearings slowly by hand. Replace the
press as shown in Fig. 7 in Section 2.7.1. Press
bearings which indicate rough or tight spots.
the shaft from the bearing.
Also replace the bearings which are corroded or
pitted.
4.
Slide the riser thrust bearing and governor riser
Examine the riser thrust bearings for excessive wear, flat
from the shaft.
spots, or corrosion. If any of these conditions exist,
install a new riser and bearing
assembly.
Examine the governor weights at the riser contact area
for excessive wear. If this condition exists install a new
weight.
Inspect the weight carriers and retaining pins for
wear.
Inspect the bushings in the current weights and replace
them if they are worn excessively. In the former weights
inspect the needle bearings for wear and replace them if
necessary. Inspect the operating shaft and bushing for
excessive wear. If excessive wear is noted, install a new
bushing and shaft.
Assemble Governor Cover
Fig. 6 - Installing Needle Bearings in Governor Cover
1. If the needle bearings were removed from the
governor cover, place the governor cover on the bed of
an arbor press with the inner face of the cover down.
Start the upper bearing straight into the bearing bore of
the cover with
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