Cadillac 60 Series 1963 Shop Manual page 99

6-6
HYDRA-MATIC TRANSMISSION
c. Drive 4 Table Fig. 6-4
1. Move selector lever to DRive 4 position.
2. Accelerate car and note action.
3. Select 2nd digit of Condition Number from
DRive 4 Table. Stop car.
d. Drive 3 Table Fig. 6-4
1. Move selector lever to DRive 3 position.
2. Accelerate car and note action.
3. Select 3rd digit of Condition Number from
DRive 3 Table. Stop car.
e. Low Table Fig. 6-4
1. Move selector lever to LOW range position.
2. Accelerate car and note action.
Condition Number
1-1852
2-0722
2-0733
2-0738
2-0743
2-0748
2-0752
2-0783
2-1552
2-1812
2-1819
2-1852
2-1853
2-1854
2-1858
2-1859
2-2902
2-2909
2-3062
2-3072
2-3075
2-4192
2-4194
2-4196
2-5252
2-6302
2-6602
2-7452
2-8552
2-9602
2-9609
3-1852
3-1854
3-3074
Index Number
3
17
16
16
22
22
17
12
18
24
23 & 24
1
13
15
14
23
6
6
19
19
4
5
5
5
8
7
7
9
10
11
11
20
21
2
Fig. 6-5 Condition Index Chart
3. Select 4th digit of Condition Number from
LOW Table. Stop car.
f. Reverse Table Fig. 6-4
1. Move selector lever to Reverse position.
2. Accelerate car and note action.
3. Select 5th digit of Condition Number from
Reverse Table.
g. Diagnosis
1. Refer to Condition Index, Fig. 6-5, and find
Index Number that corresponds to 5 digit Con-
dition Number.
2. Using Index Number, refer to Diagnosis
Index, Fig. 6-7, for cause or causes of condition.
h. Summary
For additional information in diagnosing the
Hydra-Matic transmission, a summary of the
various clutches, overrun band, and front unit
coupling in the various speeds and driving ranges
is found in Fig. 6-2. A summary of the trans.-
mission shift points is found in Fig. 6-3. The
transmission case oil passages are shown in
Fig. 6-6.
2. Checking Oil Pressure
The oil pump pressure can be checked with
transmission in car, using Pressure Gage, J-5907.
1. Clean dirt from bottom of reverse piston
housing and remove pipe plug from housing.
2. Screw pressure gage line fitting into hole in
piston housing and place gage in car so that it can
be seen from driver's seat, Fig. 6-8.
3. Drive car until transmission oil has reached
normal operating temperature (approximately
200°F).
a. Drive Range Check
The following tests may be made by road test or
with car on jack stands.
1. Zero throttle pressure. Above 20 MPH in
fourth speed with zero throttle, oil line pressure
should be 60 to 70 psi.
2. Full throttle pressure (road test). Full
throttle pressure in any drive range should be at
least 30 psi higher than zero throttle pressure
test reading.