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7-26
GROUP 7-AUTOMATIC TRANSMISSION
FIG.
16-Va,uum Unit Removal or Installation
uum diaphragm assembly and throttle
control valve rod.
10.
Remove the main control
valve assembly attaching bolts; then,
remove the assembly by lifting it
from the mounting pad on the case.
Hold the manual valve in place as
the assembly is removed.
11. To install the control valve
body, reverse the above removal pro-
cedure, torquing the retaining bolts
to specifications. Make sure the vac-
uum unit and control rod are prop-
erly assembled before the oil pan
is assembled (Fig. 16).
PRESSURE REGULA TOR
REPLACEMENT
•
With the lubricating tube and the
same detail parts removed as outlined
under Control Valve Body Removal,
except for the control valve body
and vacuum unit (Fig. 15), use the
following procedure to remove and
replace the pressure regulator.
1. Remove the pressure regulator
spring retainer, springs and spacers.
2. Remove the pressure regulator
assembly attaching bolts, and then,
remove the assembly.
3. To assemble the pressure regula-
tor assembly, reverse the above pro-
cedures and torque the retaining
bolts to specifications.
PARKING PAWL REPLACEMENT
1. Loosen the lock nut on the rear
band adjustment stud. Tighten the
stud with tool 7195-C (Fig. 13)
until the tool handle overruns. Do
not back off the adjusting screw.
This will hold the planet carrier,
front and rear clutch assemblies in
(106)
D1320-A
FIG.
17-Extension
Housing Seal
&
Bushing Removal
place during the parking pawl re-
placement procedure.
2. Raise the car on the hoist and
support the front of the transmission
with an adjustable jack stand and
drain the transmission fluid from the
oil pan.
3. Mark the drive shaft with the
location of the axle companion
flange. Remove the two U-bolts hold-
ing the drive shaft to the companion
flange; then, remove the drive shaft.
4. Remove the reinforcement plate
under the transmission oil pan. Re-
move the oil pan and oil filter type
screen. Remove the parking brake
equalizer bar retracting spring and
disconnect the parking brake cable
and equalizer assembly.
5. Remove the three short · tubes
from the main control valve that
direct rear clutch, front clutch, and
governor return pressure to the case.
6. Remove the crossmember at
the extension housing and remove
the extension housing.
7. With a soft hammer tap the
distributor and rear pump to move
the distributor back until the rear
clutch, front clutch, and governor
return tubes are removed from the
case.
8. Remove the output shaft and
rear pump as an assembly.
9. Remove the end of the toggle
return spring from the toggle lever
Tooi-7657-J
D1321-A
FIG.
18-Exterrsion
Housing Seal
&
Bushing Installation
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