PAR 230-233
TEST AND ADJUSTMENTS
CHAP 5, SEC XXXIV
Section XXXIV. TEST AND ADJUSTMENTS
230. GENERAL
a . The tests described in this section
will determine if the functional operation
of the transmission is satisfactory. These
tests may be made after rebuild or at any
t i m e t o d e t e r m i n e t h e c o n d i t i o n o f t he
transmission. The tests may be made while
the transmission is installed in a vehicle or
on a properly equipped test stand.
b . These tests will determine wheth-
er or not the clutches, torque converter,
gearing and hydraulic system are perform-
ing properly.
c . Adjustments of transmission com-
ponents and control linkage must be cor-
r e c t w h e n t e s t s a r e p e r f o r m e d ( o r c o r-
rected during tests).
When tests are made
in the vehicle, the vehicle engine must be
properly adjusted and performing effici-
ently. Refer to the engine technical man-
ual for engine test and adjustment proce-
dures. Refer to pars. 233 and 234, below,
for transmission test and adjustment pro-
cedures.
231. TEST EQUIPMENT
a . Transmission Installed in Vehicle.
The following equipment
testing the transmission
stalled in a vehicle.
( 1 ) T a c h o m e t er
gine speed (transmission
revolutions per minute.
is required when
while
it
is
in-
t o i n d i c a t e e n-
input speed) in
(2) Oil pressure gage with a range
from 0 to 500 psi.
b . T r a n s m i s s i o n I n s t a l l e d o n T e s t
Stand. In addition to a properly equipped
t e s t s t a n d w i t h a m e a n s f o r d r i v i n g a
transmission (motor or engine of approxi-
mately 275 horsepower) and the equipment
listed in a , above, the following equipment
is required:
( 1 ) S h i f t s e l e c t o r l i n k a g e a nd
( 2 ) S t e er
c o n t r o l l i n k a g e a nd
manual control for operating steer control
valve.
(3) External oil cooler.
(4) Control for varying the trans-
mission input speed (engine throttle or
variable speed electric motor control).
c . T e s t D a t a L o g S h e e t . A s i m p le
test data log sheet for recording trans-
mission performance is illustrated in fig.
367.
232. OIL PRESSURE READINGS
Use the oil pressures listed in the test
data log sheet as normal values in testing
the transmission.
233. TESTS
a . P r e l i m i n a r y I n s t r u c t i o n s.
When
t e s t i n g t h e t r a n s m i s s i o n i n a v e h i c l e,
t h e l e f t - o u t p ut
a n d t h e r i g h t - o u t p u t
drive
a s s e m b l i e s w i l l h a v e t o b e
m a n u a l c o n t r o l f o r s h i f t i n g t h r o u g h a ll
Figure 366. Measuring transmission
ranges.
oil level
Change 2 195
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