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 181 of 323
*C2
*C2
PAR
181-183
LOW, REVERSE PISTONS AND HOUSING REBUIL D
CHAP
5,
SEC
XXI V
i . Install spindle replacer 8351266 on the
planetary carrier and position the spindle for
installation (fig. 217).
Note . Be sure that the slot on the
spindle is indexed properly with its
lock pin bore in the carrier (fig. 217).
j . Using a press and spindle replace r
8351266, install the planetary carrier spindle
(fig. 217). The spindle replacer will bottom
against the carrier when the spindle is proper-
ly positioned in the carrier.
k . Install the lock pin, using a hammer
and punch (fig. 213). Drive the lock pin flush
to 0.030-inch below the carrier surface.
l . Install the remaining five spindles 7
(fig. 377, fold-out 6) and pinions 14, with
rol-
lers 10 and 12, thrust washers 8 and 15, lock
pins 16 and spacers 9, 11 and 13 in the same
manner as described in b through k , above.
—
m . Install bearing 20 in reverse-range
carrier support 18. Install retaining ring 21.
n . Install reverse-range planetary car-
rier assembly 6 in the carrier support 18.
Press on the carrier assembly until it bottoms
in the support.
Section XXIV. LOW- AND REVERSE-RANGE PISTONS AND HOUSING — REBUILD
182. DESCRIPTIO N
The low- and reverse-range clutch pistons
are contained in a common, machined steel
housing. The pistons, piston return springs,
retainers, ring seals, seal ring expanders and
retainer rings contained in this housing for
low- and reverse-range are identical and inter-
changeable.
183. DISASSEMBLY (fig. 376, fold-out 5)
a . Position the low- and reverse-range
clutch piston housing assembly in a pres s
(fig. 218).
b . Using a compressing tool (fig. 38) ,
remove the retaining ring retaining the piston
return spring retainer (fig. 218). Remove
the retainer.
c . Install eighteen piston return springs
49 (fig. 376, fold-out 5).
d . Remove the low-range clutch piston
(fig. 218) .
e . Remove ring seal 52 and expander 51
(fig. 376, fold-out 5) from low-range clutch
piston 50.
f . Remove ring seal 53 and expander 54
from piston housing 55.
g . Remove reverse-range clutch pisto n
60, piston return springs 61, retainer 62, re-
taining ring 63, ring seals 57 and 58, and ex-
panders 56 and 59 in the same manner as de-
scribed for low-range in b through f , above.
—
Figure 218. Removing (or installing) retaining ring
for low-range piston return spring retainer
14 9
Back to Top
