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 205 of 323

PAR

227,

STEPS

39-4 2

ASSEMBL Y

CHAP

5,

SEC

XXXII I

Figure 278 (Step 39)

Using a micrometer depth gage (A), measure

the distance from the reverse-range support

housing (B) surface to the transmission hous-

ing (C) split-line surface. Record this dimen-

sion.

Figure 279 (Step 40)

Measure the depth of the counterbore in the

transmission rear housing (A). Record this

dimension.

Figure 280 (Step 41)

Using a micrometer,

measure the thickness

of the transmission housing-to-rear housing

gasket (A). Record this dimension. Instal l

gasket (A) on housing (B). Install spacer (C)

on hub of reverse-range carrier assembly (D).

Figure 281 (Step 42)

To obtain shim pack (A) thickness, add the

dimensions obtained above in Steps 40 and 41.

Add

an

additional

0.012-inch.

From

the

re-

sulting figure, subtract the dimension obtained

in Step 39.

This difference is the thickness

of the shim pack required. Three shim thick-

nesses are available (0.008, 0.010, 0.01 2

approx.) Install the number of shims (A) re-

quired. Using sling (B), install rear housing

assembly (C) onto transmission main housing

assembly (D).

17 3