Advertisement
PART
7-~
F. M.X. AUTOMATIC TRANSMISSION
7-117
inner and outer compensator springs,
and the compensator sleeve and plug.
17. Position the front plate. Apply
pressure to the plate while installing
the two attaching
screws.
1~.
Install the
throttle
valve, plug
and check valve
in
the throttle valve
body.
Position the separator on the
upper body and install the throttle
valve body. Install the three attaching
screws.
19. Install four screws attaching the
cover to the lower body, two screws
attaching
the
separator plate to the
upper body, and one screw attaching
the separator plate to lower body.
Torque
the
cover and body screws to
specitica tion.
20. Install
the
manual valve.
GOVERNOR
I. Remove the governor valve body
VALVE BODY
~VALVE
----'~CLIP
RETAINING
"''"'
'"'"'
____.\\~
PLUG___.,
D1966·A
FIG. 66 -Governor Disassembled
lOCK WASHER
I!ETURN PISTON
4. Install the governor valve and
spring assembly in the bore of the
valve body. Install the sleeve, and
plug.
5.
Install the body on the counter-
weight. Make sure the fluid passages
in the body and ·the counterweight are
aligned.
6. Position the valve body cover on
the body, and install the screws.
FRONT SERVO
1. Remove the servo piston retain-
er snap ring (Fig. 67). The servo
piston is spring-loaded. Apply pres-
sure to the piston when removing
the snap ring.
2. Remove the servo piston retain-
er and servo piston from the servo
body. It may be necessary to tap the
piston stem lightly with a soft-faced
hammer to separate the piston
retainer from the servo body.
3. Remove all the seal rings, and
remove the spring from the servo
body.
4. Inspect the servo body for
cracks and the piston bore and the
servo piston stem for scores (Fig. 67).
Check fluid passages for obstruc-
tions.
5.
Check the actuating lever for
free movement, and inspect it for
wear.
If
it is necessary to replace the
actuating lever shaft. remove the re-
taining pin and push the shaft out of
the
bracket.
If
the shaft is not re-
tained by a pin, it is retained in the
body by serrations on one end of the
shaft. These serrations cause a press
fit at that end
.
To remove the shaft,
press on the end opposite the serra-
tions.
Inspect the adjusting screw threads
and the threads in the lever.
6. Check the servo spring and servo
band strut for distortion.
BODY
PIN _ _
0
SHAFT-
ADJUSTING SCREW
D114S·C
FIG. 67- Front Servo- Disassembled
7. Inspect the servo band lining for
excessive wear and bonding to the
metal. The band should be replaced if
worn to a point where the grooves are
not clearly evident.
8. Inspect the band ends for cracks
and check the band for distortion.
9.
Lubricate all parts of the front
servo with transmission fluid to facili-
tate assembly.
10. Install the 0-ring on the piston
retainer. Install new 0-rings on the
servo piston.
11. Position the servo piston re-
lease spring in the servo body. Install
the servo piston and retainer in the
servo body as an assembly. Compress
the assembly into the body, and
secure it with the snap ring. Make
sure the snap ring is fully seated
in the groove.
12. Install the adjusting screw and
locknut in the actuating lever if they
were previously removed.
REAR SERVO
I. Remove the servo actuating lever
shaft retaining pin with a I /8-inch
punch
.
Remove the shaft and actuat-
ing lever needle bearings and thrust
washers.
2. Press down on the servo spring
retainer, and
remove
the snap
ring.
Release the pressure on the retainer
slowly to prevent the spring from
flying
out.
3. Remove the retainer and servo
spring (Fig. 68).
4. Force the piston out of the servo
body with air pressure. Hold one hand
over the piston to prevent damage
.
5.
Remove the accumulator piston
from the servo piston.
6. Remove the piston seal ring.
7. Install a new seal ring on the
servo piston
.
8. Install the accumulator piston in
the servo piston
.
9. Install the piston in the servo
body. Lubricate the parts to facilitate
assembly. Install the servo spring with
the small coiled end against the servo
piston.
10. Install the spring retainer.
Compress the spring with a C-clamp.
Then install
the
snap ring. The snap
ring must be fully seated in the
groove.
II. Install the needle bearings in
the actuating lever. Install the actuat-
ing lever and thrust washers with the
socket in the lever bearing on the pis-
ton stem. Install the actuating lever
shaft, aligning the retaining pin holes,
and install the pin.
Advertisement
