TM 5-3810-300-24&P-3
BLOWER 3.4
with three bolts (21), lock washers, plain washers
and three spacers (116) on the standard blower and
smaller diameter rotor blower, or drive gear (140) on
the former reduction blowers, along with three
spacers (116) and bearing retainer (117) between
the plates and the face of the gear. Tighten bolts to
25-30 lb-ft torque.
c.
Check runout of splines in the rotor drive hub with an
indicator. Spline runout must not exceed .020" total
indicator reading.
3.
Affix a new gasket (32) to the blower rear end plate cover
(29).
NOTE: The former blower end plate cover is not
interchangeable with the current blower end plate
Fig. 29. Measuring End Clearance Between
cover.
Blower Rotors and Housing
4.
Position the end plate cover over the end plate dowel pins,
e.
Place the lock washer and the bearing retainer (117)
then push the cover against the end plate. Install the ten
on the 7/16-20 x 1-1/4" drive-gear retaining bolt
bolts and lock washers. Tighten the bolts to 13-17 lb-ft
(143). Thread the bolt into the right-hand helix rotor
torque.
shaft and guide the lugs on the rear face of the
retainer in the slot in the end of the rotor shaft, then
Attach Accessories to Blower
bend one of the tangs on the lock washer over into
slot in the retainer. Tighten the bolt to 55-65 lb-ft
Refer to Fig. 1 and attach the fuel pump, water pump, blower drive
torque.
shaft cover and governor weight housing assembly to the blower as
follows:
f.
Place the lock washer (147) and the fuel pump drive
coupling disc (18) on the 1/2" 20 x 1-1/4" driven gear
1.
Attach fuel pump to the blower as outlined under "Attach
retaining bolt (146). Thread the bolt into the left-
Fuel Pump to Blower" in Section 2.2.
hand helix rotor shaft, and guide the lugs on the disc
in the slots in the gear hub, then bend one of the
2.
Attach the water pump to the blower as outlined under
tangs on the lock washer over into the slot in the
"Install Fresh Water Pump" in Section 5.1. To convert the
disc. Tighten the bolt to 55-65 lb-ft torque.
former water pump drive coupling to the current coupling
refer to Section 3.0.
g.
Bend one of the tangs of each lock washer over
against the head of each gear retaining bolt.
3.
Attach the governor weight housing assembly to the blower
as outlined under "Install Governor" in Section 2.7.1 for
2.
Refer to Figs. 11 and 12 and attach the blower rotor drive
limiting speed governor, and Section 2.7.2 for the variable
hub (20) and drive hub plates (115) to the blower gears as
speed governor.
follows:
4.
On the current blower, attach the blower drive shaft cover
a.
If removed, attach rotor drive hub plates (115) to the
(33) to the blower rear end plate cover (29) with cover seal
drive hub (20) with three bolts (22), lock washers and
(37) and seal clamp (114) as shown in Fig. 1.
plain washers. Tighten the bolts to 25-30 lb-ft
torque.
5.
On a former blower, affix a new gasket to the bolting flange
of the blower drive shaft cover (33) and attach it to the
b.
Attach the rotor drive hub and drive plates to the
blower rear end plate cover with six bolts and seal washers,
right-hand helix rotor timing gear
finger tight only.
Attach Blower to Engine
Refer to Figs. 3 and 4 and attach the blower assembly to the engine
as follows:
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