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TURBO HYDRA-MATIC 4 0 0 AUTOMATIC TRANSMISSION
7A4-6 1
I
Fig. 7A4-137 Converter Assembly
-
Cross Section
REASSEMBLY AND INSTALLATION OF
TRANSMISSION
REAR UNIT
(Fig. 7A4-138)
1. Install rear internal gear on end of main shaft.
2. Install internal gear retaining snap ring (Fig. 7A4-
139).
3. Install sun gear-to-internal gear thrust races and
bearings against inner face of rear internal gear, as follows,
and retain with petrolatum:
a. Place large race against internal gear, with flange
facing forward or up (Fig. 7A4-140).
b. Place thrust bearing against race.
c. Place small race against bearing, with inner flange
facing into bearing or down.
4. Install output carrier over mainshaft so that pinions
mesh with rear internal gear.
5. Place above portion of build-up through hole in bench
so that mainshaft hangs downward.
6. Install rear internal gear-to-output shaft thrust races
and bearings as follows and retain with petrolatum (Fig. 7A4-
141):
a. Place small diameter race against internal gear, with
center flange facing up.
b. Place bearing on race.
c. Place second race on bearing, with outer flange cupped
over bearing.
7. Install output shaft into output carrier (Fig. 7A4-142).
8. Install output shaft-to-output carrier snap ring.
9. Turn assembly over and support so that output shaft
hangs downward.
10. Install reaction carrier-to-output carrier non-metal
or metal thrust washer, with tabs facing down in pockets and
retain with petrolatum.
NOTE: The production built transmissions use a non-
metal washer here. However, the service replacement
washer is made of metal.
11. Install sun gear, splines with chamfer down.
12. Install composition gear ring over output carrier
(Fig. 7A4- 143).
13. Install reaction carrier (Fig. 7A4- 144).
NOTE: When a new output carrier and/or reaction
carrier is being installed and if the front internal gear
ring prevents assembly of the carriers, replace the front
internal gear ring with the service gear ring.
14. Install sun gear shaft with long splined end down.
15. Install center support-to-sun gear thrust races and
bearings, retaining with petrolatum, as follows:
a. Install large race, center flange up over sun gear shaft.
b. Install thrust bearing against race.
c. Install second race, center flange up (Fig. 7A4-145).
16. Install rollers that may have come out of the roller
cage by compressing the energizing spring with forefinger and
inserting roller from the outer side (Fig. 7A4-146).
17. Install roller clutch into reaction carrier outer race
(Fig. 7A4-147).
18. Install center support-to-reaction carrier thrust
washer into recess in center support. Retain with petrolatum
(Fig. 7A4-148).
19. Install center support into reaction carrier and roller
clutch assembly (Fig. 7A4-149).
NOTE:
With reaction carrier held, center support
should only turn counterclockwise.
20. Install Holding Tool J 21795 on gear unit to hold
units in place.
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