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PART 7-3-
F. M.X. AUTOMATIC TRANSMISSION
7-93
CENTER SUPPORT
"CAM
TYPE" CLUTCH RACE
CHAMFER ON PRODUCTION
PART, ONLY-SERVICE PART NOT CHAMFERED
PLANET CARRIER
D1931-A
FIG. 19 -
Roller Type Planetary Clutch, Carrier and
Center Support
bleed ball valve in the clutch piston
for free movement. Check the ori-
fice to make sure
it
is not plugged.
2. Check the fluid passages for
obstructions. All fluid passages must
be clean and free of obstructions.
3. Inspect the clutch plates for
wear and scoring and check the
plates for fit on the clutch hub ser-
rations. Replace all plates that are
badly scored, worn or do not fit free-
ly in the hub serrations.
4. Inspect
the
clutch
pressure
plate for scores on the -clutch plate
bearing surface. Check the clutch re-
lease
spring(s)
for distortion.
5. Inspect the needle bearing for
worn rollers.
FRONT CLUTCH
I. Inspect
the
clutch
cylinder
thrust
surfaces,
piston
bore,
and
clutch plate serrations for
scores
or
burrs. Minor scores or burrs may be
removed with crocus cloth
.
Replace
the clutch cylinder if it is badly
scored or damaged.
2. Check the fluid passage in the
clutch
cylinder
for
obstructions.
Clean out all fluid
passages.
Inspect
the clutch piston for scores and re-
place 1f necessary
.
Inspect the piston
check ball for freedom of movement
and proper seating (Fig. 20).
3. Check the clutch release spring
for distortion
and
cracks.
Replace
the spring
if
it
is distorted
or
cracked.
4. Inspect
the
composition
and
the
steel
clutch plates and the clutch
pressure plate for worn
or scored
bearing
surfaces.
Replace
all
parts
that are deeply
scored.
5. Check the clutch plates for fiat-
ness and fit on the clutch hub ser-
rations. Discard any plate that does
not slide freely on the serrations or
that is not flat.
6. Check the clutch hub thrust
surfaces for scores and the clutch hub
splines for wear.
7. Inspect the turbine shaft bear-
ing surfaces for scores. If excessive
clearance or scores are found, dis-
card the unit.
Check the splines on the turbine
shaft for wear and replace the shaft
if the splines are excessively worn.
Inspect the bushing in the turbine
shaft for
scores.
FRONT PUMP AND
STATOR SUPPORT
I. Inspect the mating
surfaces
of
the pump body and cover for burrs.
2. Inspect the drive and driven
gear bearing surface for scores, and
check the gear teeth for burrs. In-
spect the
stator
support splines for
burrs and
wear.
3. Check the fluid passages for
obstructions.
4. If any parts other than the sta-
tor support are found defective, rt"-
place the pump as a unit. Minor
bourrs and scores may be removed
with crocus cloth. The stator support
is serviced separately.
REAR SUPPORT
I. Inspect the gasket mating sur-
faces for damage
.
2. Inspect
the
support
bushing
for scores
.
3. Inspect the rear support fluid
passages for obstructions.
4. Check
the
fit
of
the
fluid
tubes in the support.
PRESSURE REGULATOR
I. Inspect the regulator body and
cover mating surface for burrs.
2. Check all fluid
passages for
Dl'IJP-A
FIG.
20-
Clutch Piston Check
Valve
obstructions
.
3 • .Inspect
the
control
pressure
and converter pressure valves and
bores for burrs
and scores.
Remove
all burrs carefully with
crocus
cloth
.
4. Check free movement of the
valves in their bores. The valves
should
fall
freely
into the bores
when both the valve
and
bore are
dry
.
5. Inspect the valve
springs
and
spacers for distortion
.
VALVE BODY
I. Clean
all
parts thoroughly in
clean solvent,
and
then blow them
dry with moisture-free compressed
air.
2. Inspect
all valve
and plug bores
for
scores.
Check
all
fluid passages
for obstructions
.
Inspect the check
valve for free
movement.
Inspect all
mating surfaces for burrs or distor-
tion. Inspect all plugs and valves for
burrs and scores
.
Crocus cloth can
be used to polish falves and plugs if
care is taken to afoid rounding the
sharp edges of the falves and plugs.
3. Inspect all springs for distor-
tion. Check
all
valves and plugs for
free movement
in their
respective
bores. Valves
and
plugs, when dry,
must fall from their own weight in
their respective bores
.
4. Roll the manual
valve
on a flat
surface to check it for a bent
condi-
tion
.
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