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21-106
AUTOMATIC TRANSMISSION
=
•
Fig. 33
Planetary
and i n s t a l l snap r i n g on o u t p u t shaft (Fig. 33).
(4) Assemble sun gear, # 6 t h r u s t plate, and d r i v i n g
shell. I n s t a l l assembled components on o u t p u t shaft
and i n s t a l l r e t a i n i n g snap r i n g .
(5) I n s t a l l #5 t h r u s t washer f r o n t annulus gear, # 4
t h r u s t washer and f r o n t planetary gear (Fig. 33).
(6) I n s t a l l select f i t snap r i n g on o u t p u t shaft and
check end play again. I f end play is not correct, i t
can be adjusted w i t h a different thickness snap r i n g .
Select f i t snap r i n g s are available i n 1.22, 1.40 and
1.57 m m (.048, .055 and .062 inch) thicknesses.
(7) Set gear t r a i n aside for final assembly.
TRANSMISSION CASE
Clean t h e case t h o r o u g h l y w i t h solvent and d r y
w i t h compressed
a i r . A p p l y
a i r t h r o u g h a l l case
channels and passages to be sure they are clear and
to remove cleaning residue.
Inspect t h e case for cracks, stripped threads, or
other damage. Stripped threads i n case bolts holes
can be repaired w i t h steel t h r e a d inserts. However,
do not a t t e m p t to r e p a i r cracks or porous spots i n the
case.
Inspect t h e band levers, pins, l i n k s and adjusting
levers. Replace a n y component e x h i b i t i n g wear or
damage.
OVERRUNNING CLUTCH
Inspect t h e o v e r r u n n i n g c l u t c h cam, rollers a n d
spring retainer. Replace the cam as a n assembly i f
the rollers are w o r n , chipped, flat spotted, or any of
the roller or cam surfaces are brinneled or damaged.
The c l u t c h rollers, springs and retainer are ser-
viced as a n assembly. Do not attempt t o remove or
disassemble the rollers and springs.
ear
Train—A-727
The c l u t c h cam is attached t o the case w i t h bolts.
The cam a n d shaft support m u s t both be indexed t o
each other a n d t o the case.
The support has a n a l i g n m e n t arrow on i t indicat-
i n g correct i n s t a l l a t i o n position.
The c l u t c h cam has one hole t h a t is not threaded.
This hole does not a l i g n w i t h any of the bolt holes i n
the case. I t aligns w i t h a flat surface on the case i n -
stead.
T i g h t e n t h e cam bolts alternately and evenly w h e n
i n s t a l l i n g t h e cam. This is necessary to seat the cam
properly a n d avoid distortion or cocking.
FRONT (KICKDOWN) SERVO AND BAND-All
FRONT SERVO
DISASSEMBLY
(1) Remove the small snap r i n g from the servo pis-
ton.
(2) Remove the piston, rod, springs and guide (Fig.
34).
(3) Remove and discard the servo piston r i n g s and
O-ring.
Front Band And Servo Inspection
Clean t h e servo components w i t h solvent and d r y
t h e m w i t h compressed air.
Inspect t h e servo components. Replace the springs
i f collapsed, distorted or broken. Replace the guide,
rod and piston i f cracked, bent, or w o r n . Discard the
servo snap r i n g i f distorted or warped.
Replace t h e front band i f distorted, t h e l i n i n g i s
burned or f l a k i n g off, or w o r n (grooves no longer vis-
ible a t any p o i n t on band).
Check t h e servo piston bore for wear. Replace the
piston a n d r o d as an assembly i f either p a r t is w o r n
or damaged.
Replace any servo component i f doubt exists about
its condition. Do not reuse suspect parts.
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