TM 5-3810-300-24&P-3
BLOWER 3.4
Fig. 12 - Typical Details and Relative Location of Parts - Six Cylinder Former Reduction Blowers
2
Housing--Blower
20 Hub--Rotor Drive
33 Cover--Blower Drive
83
Ring--Seal (Piston Type)
3
Rotor Assy.--Upper--
21 Bolt--Plate to Gear
Shaft
114 Clamp--Blower Drive
R.H Helix
22 Bolt--Plate to Hub
34 Bolt--Drive Shaft
Cover Seal
4
Rotor Assy.--Lower--
23 End Plate--Front
Cover
315 Plate--Blower Rotor
L.H Helix
24 End Plate--Rear
35 Lock Washer
Drive Hub
5
Bearing (Roller)--Front
25 Pin (Dowel)--
36 Gasket--Drive Shaft
116 Spacer--Plate to Gear
6
Retainer--Bearing
Housing to End Plate
Cover
117 Retainer--Bearing
7
Bolt--Bearing Retainer
26 Bolt--End Plate
37 Seal--Blower Drive
140 Gear--Drive--R.H.
9
Bearing (Ball)--Rear--
27 Oil Seal--End Plate
Cover
Helix
Double Row Thrust
28 Cover--End Plate--
38 Shaft--Blower Drive
141 Bearing (Ball)--Drive
13
Geor--Rotor--Upper--
Front
39 Snap Ring--Drive Shaft
Gear
R.H Helix
29 Cover--End Plate--
40 Coupling Assy.--
142 Gear--Driven--L.H.
14
Gear--Rotor--Lower--
Rear
Water Pump Drive
Helix
L.H Helix
30 Bolt--End Plate
41 Bolt--Allen Head
143 Bolt--Drive Gear
17
Shim--Gear to Bearing
Cover
63 Bolt--Blower Mounting
Retaining
(For Timing Rotors)
31 Lock Washer
64 Plain Washer
146 Bolt--Driven Gear
18
Disc--Fuel Pump
32 Gasket--End Plate
81 Collar--Blower End Plate
Retaining
Coupling
Cover
82 Carrier--Seal Ring
147 Lock Washer
b. Start the oil seal straight into the bore in the end
a. Support one of the rotor assemblies on wood
plate with the sealing edge facing down (toward
blocks on the bed of an arbor press as shown
the bearing bore).
in Fig. 16.
c.
Place the short end of oil seal remover and
b. Lubricate the inside diameter of the oil seal ring
'installer J 6270-3 iii the oil seal and under the
carrier a with engine oil; then start the carrier
ram of the press (Fig. 14). Then, press the oil
straight over the end of the rotor shaft with the
seal into the end plate until the shoulder on the
chamfered inside diameter end facing the rotor.
installer contacts the end plate.
c.
Place the oil seal ring carrier installer J 6270-4
over the end of the rotor shaft and against the
NOTE: A step under the shoulder of the installer
carrier with the end of the installer under the
will position the oil seal approximately .005" below
ram of the press. Then, press the carrier down
the finished face of the end plate. This is within the
tight against the rotor.
.002" to .008" specified.
d. Install the remaining oil seal ring carriers on the
d. Install the remaining oil seals in the end plates
rotor shafts in the same manner.
in the same manner.
e. Install an oil seal ring in the ring groove of
2.
If used, install the ring type oil seal, carriers, and
collars on the rotor shafts and in the end plates as
follows:
Fig. 13 - Upper and Lower Rotors and Gears
Fig. 14 - Installing Oil Seal (or Seal Ring
(Former Reduction Blowers)
Collar) in Blower End Plate
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