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 5 of 323
REQUIRED CHANGE S
NOTE
Place an asterisk by each of the referenced paragraphs in the basic
manual to show that there is a change. While using the TM, you will
then be alerted by the asterisks that you need to refer to the pen and ink
changes portion (pages 1 of 13 thru 3 of 13/(14 blank)) of Change 2
package for changed or additional information.
Page 46 is changed as follows.
Paragraph 40a. is changed to read:
a. When it is necessary to start the vehicle en-
gine by towing or pushing the vehicle (refer to the
applicable TM manual, ref. Appendix A), the man-
ual selector valve must be placed in second gear po-
sition.
Page 62 is changed as follows.
Change Chapter 3 heading to read:
PARTS, SPECIAL TOOLS,
IMPROVISED TOOLS, AND EQUIPMENT
FOR DS & GS MAINTENANCE
Change Paragraph 60 to read:
Repair parts supplied for the XTG 411-2A, -4
power trains are listed in TM 9-2520-234-34P.
Change Paragraph 61 to read:
For standard and commonly used tools and
equipment having general application to this
material, refer to the Appendix B, Section 2.
Change the last sentence in Paragraph 62a to read:
For replacements, refer to TM 9-2520-234-34P.
Page 77 is changed as follows.
Paragraph 72q is now followed by new Paragraph r:
r. Pipe Plugs. When replacing pipe plugs, coat
all pipe plugs that are not pre-coated with sealing
compound MIL-S-45180, Type III before installing
new plugs.
Change the first sentence in Paragraph 73a to read as
follows:
a. This section presents the complete disassem-
bly of the XTG 411-2A, -4 transmissions, input
transfer assembly and output drive assemblies.
Add the following NOTE after Paragraph 73b:
Note. There are Change 2 supplements immedi-
ately following each fold-out. Refer to these sup-
plements to note where changes have been made
for later models. Do not use the part numbers listed
on fold-outs 2 through 15. These part numbers
have been superseded by TM 9-2520-234-34P.
Page 78 is changed as follows.
The part number for the bracket shown in Figure 39
(Step 1) is 8355697.
For later models, the lock strips shown in Figure 40
(Step 2) are superseded by lock washers.
Note: When doing Figure 40 (Step 2) and Figure
41 (Step 3), take note of the size and location of the
bolts, lock washers and spacers (if present). Make
a sketch so that the same sizes and locations are
used at assembly. Models vary configuration at
this location and it is important that the same size
and location of parts is maintained.
In Step 2, also remove spacers 157 (Fig. 373.1,
fold-out 2), if present.
For all models, change Step 3 to read:
Using a 5/8-inch wrench, remove four input
transfer-to-converter housing bolts and lock
washers (A). Using a 3/4-inch wrench, remove six
input transfer-to-converter housing bolts and lock
washers (A). Remove engine coupling shaft (B).
For later models, the 10 bolts removed in Step 3 are:
1/2-13 X 5-1/4 (2)
1/2-13 X 6 (4)
7/16-14 X 1/2 (4)
Change 2 (1 of 13)
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