TM-9-2520-254-34
TRANSMISSION, AUTOMATIC, ALLISON, MODEL TX100-1
TECHNICAL MAUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1971
TM-9-2520-254-34 - Page 84 of 126
Figure 5-76.
5-29. Cleaning
Refer to paragraph 5-2 for cleaning recom-
mendations.
5-30. Inspection and Repair
Refer to paragraph 5-3 for general inspection and
repair recommendations. Repair and overhaul
(rebuild) points of measurement for fits, clearances,
and wear limits are indicated by small letters in
figure 5-74. Refer to paragraph 6-3 and table 6-3
for general wear limits information. Do not scuff,
cut, tear, or distort Teflon seal ring.
5-31. Assembly
(fig. 5-74)
NOTE
All items not covered in
a
and
b
below or in
separate rebuild sections, are installed as
outlined in paragraph 5-58, assembly steps
11 through 20 (fig. 5-93 through 5-102).
No overhaul (rebuild) of such components
is required or recommended.
a. Intermdiate-range Clutch Piston Housing
Assembly
(fig.
5-74).
(1) Install seal expander (fig. 5-77) into outer
groove in piston.
NOTE
Both ends of seal expander must be as
shown in figure 5-77 when it is coiled. Ends
must curve away from seal ring so that they
will not gouge seal.
(2) Starting at a point
opposite
open ends of
expander, install seal ring in groove. It will be
necessary to stretch outer seals slightly to get them
into the groove.
NOTE
Do not stretch seal any more than is
absolutely necessary.
(3) Install seal expander (fig. 5-78) into inner
groove of piston.
NOTE
Both ends of seal expander must be as
shown in figure 5-78 when it is coiled. Ends
must curve away from seal ring so that they
will not gouge seal.
(4) Starting at a point
opposite
open ends of
expander, install seal into groove.
(5) Center piston in piston housing, and push
evenly into piston bore. The broader, flat side of
piston goes toward housing bore.
(6) Install 12 springs (34) in housing assembly
(25).
b. Low-and Reverse-Range Clutch Piston
Housing Asspembly
(fig. 5-74).
(1) If necessary to replace any of six anchor
pins (54), press pin(s) into housing (52) until end
of pin with hole projects 1.85 inches from flat side
of housing. Hole in end of pin must point ap-
proximately toward center of housing.
(2) If necessary to replace two anchor pins
(53), press them in until end of pin(s) projects 0.62
inch from flat side of housing.
(3) Install reverse-range clutch piston hook-
type seal ring (55) and low-range clutch piston
hook-type seal ring (50).
(4) Install seal expander (2, fig. 5-75) on
reverse-range clutch piston (3, fig. 5-75) in same
manner as instructed in
a
(1) above.
(5) Install reverse-range clutch piston seal ring
(1 , fig. 5-75) in same manner as instructed in
a
(2)
above.
(6) Install seal expander (48) on low-range
clutch piston (47) in same manner as instructed in
a
(l) above.
(7) Install low-range clutch piston seal ring
(49) in same manner as instructed in
a
(2) above.
(8) Center reverse-range clutch piston (3, fig.
5-75) and low-range clutch piston (47) in their
respective bores in housing (52), and push each
evenly into bores in housing. The broader, flat sides
of pistons go toward housing bores.
5-34
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