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 182 of 323

*C2

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CHAP

5,

SEC

XX V

184. CLEANIN G

Refer to par.

dations.

LOW PLANETARY AN D

71 for cleaning recommen-

185. INSPECTION AND REPAIR

Refer to par. 72 for general inspection

and repair recommendations. Repair and re-

build points of measurement for fits, clear-

ances and wear limits are indicated by small,

lower case letters in fig. 376, fold-out 5. Re-

fer to par. 239 for wear limits information.

186. ASSEMBLY (fig. 376, fold-out 5)

a.

in low-

ing 55.

Install expander 54 and ring seal 53

and reverse-range clutch piston hous-

OUTPUT SHAFT REBUIL D

PAR

184-191

b . Install expander 51 and ring seal 52

onto low-range clutch piston 50.

c . Install low-range clutch piston 50 into

housing 55.

d . Install eighteen piston return springs

49 onto piston 50.

e . Install piston return spring retainer 48.

f.

Position

assembly

in

a

press

and

using a compressing tool, compress pisto n

springs and install retaining ring (fig. 218).

g . Install reverse-range clutch piston 60

(fig. 376, fold-out 5) and related parts in hous-

ing 55, in the same manner, as described for

low-range in a through f , above.

—

Section XXV. LOW-RANGE PLANETARY AND OUTPUT SHAFT — REBUILD

187. DESCRIPTIO N

Refer to par. 13 for description of the

low-range planetary and output shaft assembly.

188. DISASSEMBLY (fig. 376, fold-out 5)

a . Using a hammer and punch, remove

the four planetary spindle lock pins retaining

the planetary spindles (fig. 219).

b . Using a press, and a suitable press

tool, remove four planetary carrier spindles

(fig. 220).

c . Remove planetary pinion 30 (fig. 376,

fold-out 5), spacers 32 and 29, thrust washers

33 and 28, and rollers 31.

d . Remove the three remaining planetary

pinions 30 and related parts.

189. CLEANIN G

Refer to par. 71 for cleaning recommen-

dations.

15 0

190. INSPECTION AND REPAIR

Refer to par. 72 for general inspection

and repair recommendations. Repair and re-

build points of measurement for fits, clear-

ances and wear limits are indicated by small,

lower case letters in fig. 376, fold-out 5. Re-

fer to par. 239 for wear limits information.

191.

in a

ASSEMBLY (fig. 376, fold-out 5)

Note . Chill spindles 34 in dry ice for

approximately one hour prior to in-

stallation.

a . Place low-range shaft and carrier 27

press .

b . Grease the inside diameter of plane-

tary carrier pinion assembly 30.

c . Insert 20 spindle rollers into the pin-

ion bore. Refer to fig. 215.

d . Place a thrust washer and spacer on

alining tool 8351209. Refer to fig. 215.