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 231 of 323
PAR
233-23 4
TESTS AND ADJUSTMENT S
CHAP
5,
SEC
XXXI V
brakes will stop such rotation when the power
train is functioning properly.
(2) In all four forward gears, when no
steer is applied, the power train outputs should
rotate clockwise, as viewed from the right
side of the power train.
(3) In both reverse gears, when no steer
is applied, the power train outputs should ro-
tate counterclockwise, as viewed from th e
right side of the power train.
(4) In forward gears (first and second),
in clutch-brake full-right steer, the righ t
power train output should stop while the left-
output rotates clockwise, as viewed from the
right side of the power train.
(5) In forward gears (first and second),
in clutch-brake full-left steer, the left-power
train output should stop while the right output
rotates clockwise, as viewed from the right
side of the power train.
(6) In forward gears (third and fourth),
in geared full-right steer, both power train
outputs should rotate clockwise, as viewed
Figure 370. Right- and left-brake adjusting wrenches,
properly positioned
from the right side of the power train. The
left output should rotate 0.477 times faster
than the right.
(7) In forward gears (third and fourth),
in geared full-left steer, both power train out-
puts should rotate clockwise, as viewed from
the right side of the power train. The right
output should rotate 0.477 times faster than
the left.
(8) In reverse 1 , clutch-brake full-
steer, the right output should stop when steer-
ing right. The left output should stop when
steering left. The opposite output should ro-
tate counterclockwise, as viewed from th e
right side of the power train.
(9) In reverse 2, geared full-steer, the
right output should slow during right steer.
The left output should slow during left steer.
Rotation of both outputs should be counter-
clockwise, as viewed from the right side of
the power train.
234. ADJUSTMENT S
a . Brake Linkag e
(1) Disconnect the vehicle brake linkage
from the transmission. Check vehicle linkage
to see that it is not binding.
(2) Position the vehicle brake control
in fully released position. Adjust vehicle link-
age until it can be freely connected to the trans-
mission .
Secure the linkage.
b .
Brake s
(1) Power train installed in vehicle and
in service.
(a ) Brake linkage must be properly
adjusted as outlined in a , above, before at-
tempting this brake adjustment when the brake
apply levers (components of brake linkage) are
connected.
(b ) If brake apply levers are connect-
ed, permanently scribe or temporarily mark
both levers so that the marks aline with the
Release mark on the bearing retainer (fig. 370).
19 9
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