TM-9-2520-234-35

POWER TRAIN ASSEMBLY; ALLISON MODEL XTG411-2A

TECHNICAL MANUAL; FIELD AND DEPOT MAINTENANCE MANUAL

JULY 1962

  TM-9-2520-234-35 - Page 12 of 323

Page 157 is changed as follows.
Page 160 is changed as follows.
Paragraph 203i and Figure 233 are for
earlier models. Later models do not have
accumulator valves.
Page 158 is changed as follows.
Paragraph 206a is changed to read:
a . If 1/8-inch hex-socket plug 18 was
removed, install it. Torque plug 18 to
50-60 pound-inches. If 1/4-inch hex-head
plugs 25 were removed, install them .
Torque plugs 25 to 96-120 pound-inches.
If 3/8-inch square-socket plugs 26 were
removed, install them. Torque plugs 26 to
12-16 pound-feet. If 1/16-inch hex-head
plug 26A (fig. 375.1) was removed, install
it. Torque plug 26A to 35-50 pound -
inches. If 3/8-inch hex-head plug 27 was
removed, install it. Torque plug 27 to
12-16 pound-feet.
Page 159 is changed as follows.
Paragraph 206e is changed to read:
e . Position the transmission housing
on its bottom side. For earlier models,
install the accumulator body and gasket.
Secure the body with four 3/8-16 x 1-1/2
and two 3/8-16 x 2-1/2-inch cap screws
with lock washers (fig. 233). Torque cap
screws to 26-32 pound-feet.
Paragraph 206f is changed to read:
f . Install the oil filler tube assembly
and gasket. Secure the assembly with four
3/8-16 x 1 cap screws with lock washers.
Install the gage rod cap. Torque ca p
screws to 26-32 pound-feet.
Paragraph 206h is changed to read:
h . Install the diaphragm clamp plate
over the hub of the diaphragm assembly
(fig. 232). Aline the bolt holes in the plate
with the diaphragm assembly. Install four
3/8-24 x 2-1/2-inch self-locking diaphragm
bolts (fig. 233). Torque the four bolts to
41-49 pound-feet.
Add this Not e immediately following the
heading for Paragraph 213:
Note. The pinions in this planetary
carrier are a matched set. There-
fore, failure of one pinion requires
replacement of the complete set.
Page 161 is changed as follows.
Add this Not e following Paragraph 216a
(11):
Note . Chilling of spindles results
in "frost" initially which ultimate-
ly is moisture. If a rebuilt carrier
assembly is not being installed in
a transmission in the near future,
apply a coating of oil aroun d
spindle locations to avoid rust
oxidation.
Change Paragraph 221a (2) to read:
(2) If plugs 36 and 37 were re-
moved, install new replacements. Torque
plugs 36 and 37 to 96-120 pound-inches.
Page 162 is changed as follows.
The part number for the bearing remover
in Figure 238 is 8355744.
The part number for the replacer in Figure
239 is 8351932.
Page 163 is changed as follows.
Add Paragraph 226a (5):
(5) Install three pipe plugs (fig.
237). Torque the pipe plugs to 10-1 2
pound-feet.
Change Note following Paragraph 227
heading to read:
Note.
The following assembl y
steps for the XTG 411-2A, - 4
transmissions are to be used in the
same manner as the disassembly
steps. Refer to par. 73a and b .
(8 of 13) Change 2


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