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 145 of 323

PAR 108-111

CONTROL VALVE ASSEMBLY AND

CHAP 5, SEC IX

OIL TRANSFER PLATE–REBUILD

k . Remove shift inhibitor valve 76,

spring 78 and plunger 79.

l . Remove retaining ring 77 fro m

inhibitor plunger 79.

m. Remove lockup cutoff valve 80.

—

n . Remove selector valve assembly

75.

o . Do not remove needle bearin g

assemblies 53 and 55 from control valve

body 54 unless replacement is necessary.

If necessary, press bearing assemblies out

of the valve body.

p . Remove any pipe plugs 81 from

the control valve body, if necessary, to aid

in cleaning.

q . If present, do not remove check

valve 41 from oil transfer plate 43.

r . Plug 42 may be removed, if neces-

sary, for cleaning purposes.

109. CLEANING

Refer to par. 71 for cleaning recom-

mendations.

110. INSPECTION AND REPAIR

Refer to par. 72 for general inspec-

tion and repair recommendations. Repair

and rebuild points of measurement for

fits, clearances and wear limits are

indicated by small, lower case letters in

fig. 383, fold-out 12. Refer to par. 246

for wear limits information.

111. ASSEMBLY (fig. 383, fold-out 12)

a . If needle bearing assemblies 53

and 55 were removed from control valve

body 54, install new replacements.

b . Install bearing assembly 53, press-

ing against the numbered side of the bear-

ing cage, 0.200-inch below the surface ad-

jacent to the bearing bore.

c . Install bearing assembly 55 from

the inside of the valve body, pressing

against the numbered side of the bearing

cage, 0.050-inch below the surface ad-

jacent to the bearing bore.

d . Install any pipe plugs 81 removed

from control valve body 54 for cleaning

purposes. Torque pipe plugs 81 to 50-60

pound-inches.

e . Install selector valve assembly 75,

long stem end first, into control valve

body 54.

f . Install lockup cutoff valve 80, long

land end first, into the valve body.

g . Install retaining ring 77 onto shift

inhibitor plunger 79.

h . Install spring 78 onto plunger 79.

i . Install the plunger and related

parts into the valve body.

j . Install throttle valve 61, long stem

end first, into the valve body.

k . Install throttle valve spring 62.

—

l . Install throttle regulator valve as-

sembly 63 and spring 68.

m . Install control valve body cover 73

and gasket 74.

Secure the cover with

seven 5/16-18 bolts 70, two bolts 71 and

lock washers 69 and 72. Torque the bolts

to 13-16 pound-feet.

n . Install preformed packing 51 into

control valve body 54.

o . Install selector shaft assembly 56,

detent spring 60 and ball 59, at the same

time engaging the shaft assembly 56 with

the selector valve assembly 75.

p . Install spacer 50 and indicator 49

onto selector shaft 56.

q . Install retaining ring 48.

r . Install seal ring 57 onto throttle

valve shaft assembly 58.

s . Install throttle valve shaft assem-

bly 58, engaging it with throttle valve 51,

into valve body 54 and secure with re-

taining ring 47. Install washer 46 and bolt

45. Torque bolt 45 to 19-23 pound-feet.

Change 2 113