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PART 7-2- C4 AUTOMATIC TRANSMISSION
7-77
Low and Reverse Brake
Drum
1. Replace the low and reverse
brake drum bushing if it is worn or
damaged. To remove the bushing,
use the cape chisel and cut along
the
bushing seam until the chisel
breaks
through the bushing wall. Pry the
loose ends of the
bushing up
with
an awl
and
remove the
bushing.
2. Install a new bushing with the
tool
shown in
Fig. 96.
ASSEMBLY
OF
TRANSMISSION
When assembling
the transmission
sub-assemblies (Fig. 102),
make
sure
sure
that
the correct
thrust washer
is
used between
certain
subassem-
blies.
Vaseline
should
be used to
hold the thrust washers in
their
proper location. Lubricate
thrust
RETURN SPRING
PARKING PAWL
FIG. 99- Parking Pawl and
Gear
D1441-A
FIG. 1 00 - Number 10 Thrust
Washer Location
washers,
bushings
and journal with
automatic transmission fluid. If the
end
play
is
not
within specifica-
tions, after
the
transmission is
assembled, either the wrong selec-
tive
thrust
washers were
used,
or a
thrust washer came out of
position
during the transmission
assembly
operation.
1. Install thrust
washer No.
9
inside the transmission case (Fig. 97).
2. Place
the one-way clutch outer
race
inside the case. From the
back
of the
case install the six outer race
to case
attaching
bolts.
Torque
the
bolts to specification with the tools
shown in Fig. 98.
3. Place the transmission case
in
a vertical
position
with the
back
face of the case upward. Install
the
parking pawl retaining
pin in the
case
(Fig.
99).
4. Install the
parking pawl on
the case retaining pin. Install
the
parking pawl return spring
as
shown
in Fig. 99.
5. Install thrust
washer
No. 10
on
the parking
pawl gear (Fig.
100).
Place the
gear and thrust washer on
the back
face of the case (Fig. 99).
6. Place the two fluid distributor
tubes
in
the
governor distributor
sleeve.
Install
the
distributor
sleeve
on the case.
As the distributor sleeve
is
installed,
the
tubes
have to
be
inserted in
the
two
holes
in the case
RETAINS
REVERSE RING GEAR AND
HUB TO
OUT?UT
SHAFT
RETAINS GOVERNOR DISTRIBUTOR
TO
OUTPU fSHAFT
01549-A
FIG. 101 -Governor and Reverse
Ring Gear and Hub Snap Ring
ldentificatton
and the parking pawl retaining pin
has
to be inserted in the alignment
hole in the distributor sleeve.
7.
Install the four governor dis-
tributor
sleeve-to-case
attaching
bolts
and torque the
bolts
to
specification.
8.
Install the governor distributor
assembly on the output
shaft.
Install
the distributor retaining snap ring.
Fig.
101
shows
the
correct snap
ring
that is to
be
used.
9.
Check the rings in the govern-
or distributor, making sure that
they are fully inserted in the grooves
and will rotate freely. Install the
output
shaft
and governor dis-
tributor assembly in the distributor
sleeve
(Fig. 54).
10.
Place
a
new extension hous-
ing gasket on the
case.
Install the
extension housing, vacuum tube
clip, and the
extension
housing-to-
case attaching bolts. Torque the
bolts to
specification.
11.
Place the transmission in the
holding
fixture
with
the front pump
mounting face of the case up. Make
sure thrust washer No.
9 is
still
located
at
the
bottom
of the
trans-
mission case (Fig. 97).
12.
Install the one-way clutch
spring retainer
into
the outer race
(Fig.
103).
13. Install
the
inner race inside
of the
spring
retainer.
14. Install the individual
springs
between the inner
and
outer race as
shown
in Fig. I 03.
15. Starting
at
the back of the
transmission case,
install
the one-
way clutch rollers by
slightly
com-
pressing each
spring
and positioning
the roller between the
spring and
the
spring
retainer.
16. After the one-way clutch has
been assembled rotate the inner race
clockwise to
center
the rollers and
springs. Install the low
and
reverse
drum (Fig. 102). The
splines of
the
drum have to engage with the
splines of
the
one-way
clutch inner
race. Check the one-way clutch
operation by rotating the low
and
reverse drum. The drum
should
rotate clockwise but
should
not
rotate counter-clockwise.
17. Install thrust washer No.8 on
top
of
the low and reverse drum
(Fig. I
04).
Install the low-reverse
band in the case, with the
end
of
the
band
for the
small strut
toward
the low-reverse
servo (Fig. 53).
18. Install the reverse ring gear
and
hub
on
the
output shaft.
19. Move the output
shaft
for-
ward and
install
the reverse ring
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