TM 5-3810-300-24&P-3
3.4 BLOWER
NOTE: The former blower end plate cover
is not interchangeable with the current
blower end plate cover.
4.
Position the end plate cover over the end plate
dowel pins, with the large hole in the cover toward
the top of the end plate, then push the cover against
the end plate. Install the ten bolts and lock
washers. Tighten the bolts to 13-17 lb-ft torque.
5.
Install the ball bearings on the rotor shafts and in
the rear end plate as follows:
a. Reverse the position of the blower housing on
the two wood blocks (Fig. 23).
b. On a blower with ring type oil seals, insert the
two fillister head screws through the
Fig. 22 - Installing Roller Bearing on Rotor Shaft and in
Front End Plate
b. Place installer J 6270-4 on top of the bearing
and tap the bearing on the shaft and into the
front end plate as shown in Fig. 22.
c. Install the second roller bearing on the remaining
rotor shaft in the same manner.
d. Place the bearing retainers on top of the
bearings and the end plate; then, install the
retainer bolts and lock washers. Tighten the
bolts to 7-9 lb-ft torque.
2.
Start the end of the water pump drive coupling
straight into the left-hand helix rotor shaft. Then,
place a clean shop towel between the blower rotors
to prevent them from turning. Install the drive
coupling retaining bolt and draw the coupling and
slinger tight against the end of the shaft, then
tighten the bolt to 18 lb-ft torque.
3.
Affix a new gasket (32) to the blower front end plate
cover (38).
Fig. 23 - Installing Ball Bearing on Rotor Shaft and in
Rear End Plate
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