Page 4861 of 5135
D26388
Rear Clutch
Oil Seal
Ring Outer
D26389
D26472
SST
D26390
D26391
Brake Apply Tube
Clutch Apply Tube
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−31
U151E, U151F A/T REPAIR MANUAL (RM1021U)
46. REMOVE TRANSAXLE CASE NO.1PLUG
(a) Remove the 4 transaxle case No.1 plugs from the trans-
axle rear cover.
(b) Remove the 4 O−rings from the 4 transaxle case No.1
plugs.
47. REMOVE REAR CLUTCH OIL SEAL RING OUTER
(a) Remove the 3 rear clutch oil seal rings from the transaxle
rear cover.
48. REMOVE NEEDLE ROLLER BEARING
(a) Using SST, remove the needle−roller bearing from the
transaxle rear cover.
SST 09387−00041 (09387−01021, 09387−01030,
09387−01040)
49. REMOVE GOVERNOR APPLY GASKET NO.1
(a) Using a screwdriver, remove the 3 apply gaskets.
50. REMOVE BRAKE APPLY TUBE
(a) Remove the bolt, clamp and brake apply tube.
(b) Remove the clutch apply tube.
(c) Remove the brake apply tube from the clamp.
Page 4864 of 5135

D26394
Planetary Carrier
Thrust Washer No.1
D26395
Snap Ring
D26717
D08058
Snap Ring
D26396
Second Brake
Piston Assy
40−34
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
57. REMOVE PLANETARY CARRIER THRUST WASHER
NO.1
(a) Remove the planetary carrier thrust washer No.1 from the
planetary gear assy.
58. REMOVE 2ND BRAKE CLUTCH DISC
(a) Using a screwdriver, remove the snap ring.
(b) Remove the flange, 4 discs and 4 plates from the trans-
axle case.
59. INSPECT 2ND BRAKE CLUTCH DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
NOTICE:
SIf the lining of the disc comes off or discolors, or even
if a part of the groove is defaced, replace all discs.
SBefore assembling new discs, soak them in ATF for
at least15 minutes.
60. REMOVE SECOND BRAKE PISTON ASSY
(a) Using a screwdriver, remove the snap ring.
(b) Remove the second brake piston assy from the transaxle
case.
Page 4865 of 5135

D03616
Snap Ring
D26591
Rear Planetary
Gear Assy
D03873
Thrust Bearing
Race No.2
Thrust Needle Roller BearingInput
Sun
Gear
D26397
D09189
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−35
U151E, U151F A/T REPAIR MANUAL (RM1021U)
61. REMOVE REAR PLANETARY GEAR ASSY
(a) Using a screwdriver, remove the snap ring.
(b) Remove the rear planetary gear assy from the transaxle
case.
62. REMOVE INPUT SUN GEAR
(a) Remove the 2 thrust needle roller bearings, thrust bearing
race No.2 and input sun gear from the transaxle case.
63. REMOVE1ST & REVERSE BRAKE CLUTCH DISC
(a) Remove the flange, 6 discs and 6 plates from the trans-
axle case.
64. INSPECT1ST & REVERSE BRAKE CLUTCH DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
NOTICE:
SIf the lining of the disc comes off or discolors, or even
if a part of the groove is defaced, replace all discs.
SBefore assembling new discs, soak them in ATF for
at least15 minutes.
Page 4866 of 5135
D03595
Lock Washer
D03596
SST
D26398
SST
D26763
Front Planetary
Gear Assy
Brake Hub
D03615
Front Planetary Ring Gear
Brake Hub
Snap Ring
40−36
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
65. REMOVE FRONT PLANETARY GEAR ASSY
(a) Using a chisel and hammer, unstake the lock washer.
NOTICE:
Push down all claws of the washer. Otherwise SST cannot
be fully pressed against the nut, and cannot loosen the nut.
(b) Using SST, remove the nut.
SST 09387−00030, 09387−00080
(c) Using SST and a press, remove the front planetary gear
assy from the counter drive gear.
SST 09950−60010 (09951−00450), 09950−70010
(09951−07100)
(d) Remove the front planetary gear assy from the brake hub.
66. REMOVE FRONT PLANETARY RING GEAR
(a) Using a screwdriver, remove the snap ring and front plan-
etary ring gear from the brake hub.
Page 4867 of 5135

D03600
SST
C89128
D26405
1st & Reverse Brake Piston
D26713
O−ringO−ring
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−37
U151E, U151F A/T REPAIR MANUAL (RM1021U)
67. REMOVE1ST & REVERSE BRAKE RETURN SPRING
SUB−ASSY
(a) Place SST on the return spring, and compress the return
spring with a press.
SST 09387−00070
(b) Using a snap ring expander, remove the snap ring.
NOTICE:
SStop the press when the spring sheet is lowered1−
2 mm (0.039−0.078 in.) from the snap ring groove, to
prevent the spring sheet from deforming.
SDo not expand the snap ring excessively.
68. INSPECT1ST & REVERSE BRAKE RETURN SPRING
SUB−ASSY
(a) Using a vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length:17.61mm (0.6933 in.)
69. REMOVE1ST & REVERSE BRAKE PISTON
(a) Apply compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the
transaxle case to remove 1st & reverse brake piston.
NOTICE:
SBlowing off the air may cause the piston to jump−out.
When removing the piston, hold it by your hand using
a waste cloth.
STake care not to splash ATF when air−blowing.
(b) Remove the 2 O−rings from the 1st & reverse brake pis-
ton.
Page 4869 of 5135

D26407
SST
Snap Ring
D03806D30852
Underdrive
Brake Return
Spring
D26406
Underdrive Brake Piston
D03794
O−ringO−ring
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−39
U151E, U151F A/T REPAIR MANUAL (RM1021U)
72. REMOVE BREATHER PLUG NO.2 (ATM)
73. REMOVE UNDERDRIVE BRAKE RETURN SPRING
SUB−ASSY
(a) Place SST on the return spring, and compress the return
spring with a press.
SST 09387−00020
(b) Using a snap ring expander, remove the snap ring.
NOTICE:
SStop the press when the spring sheet is lowered1−
2 mm (0.039−0.078 in.) from the snap ring groove, to
prevent the spring sheet from deforming.
SDo not expand the snap ring excessively.
74. INSPECT UNDERDRIVE BRAKE RETURN SPRING
SUB−ASSY
(a) Using a vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length:13.24 mm (0.5213 in.)
75. REMOVE UNDERDRIVE BRAKE PISTON
(a) Apply compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the
transaxle case to remove the underdrive brake piston.
(b) Remove the 2 O−rings from the underdrive brake piston.
Page 4875 of 5135

D03809
Vinyl Tape
SST
D03810
SST
D03794
O−ringO−ring
D26764
Underdrive
Brake Piston
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−45
U151E, U151F A/T REPAIR MANUAL (RM1021U)
88. INSTALL NEEDLE ROLLER BEARING
(a) Wind a vinyl tape around SST at the place 4.0 mm (0.157
in.) above from the bottom end until the thickness of the
wound tape is about 5.0 mm (0.197 in.).
NOTICE:
Clean SST to remove deposited oil, before winding a vinyl
tape.
(b) Coat the needle roller bearing with ATF.
(c) Using SST and a press, install the needle−roller bearing
to the transaxle case.
SST 09950−60010 (09951−00320), 09950−70010
(09951−07100)
NOTICE:
When the wound vinyl tape contacts the transaxle case,
stop press−fitting.
89. INSTALL UNDERDRIVE BRAKE PISTON
(a) Coat the 2 new O−rings with ATF, install them to the un-
derdrive brake piston.
NOTICE:
SAssemble the O−ring carefully not to have a twist and
a pinching.
SApply enough ATF to the O−ring prior to assembling.
(b) Coat the underdrive brake piston with ATF.
(c) Install the underdrive brake piston to the transaxle case.
NOTICE:
Be careful not to damage the O−ring.
Page 4877 of 5135
C89122
SST
SST
Counter Drive
GearBearing
D26713
O−ringO−ring
D26593
1st & Reverse
Brake Piston
− AUTOMATIC TRANSMISSION / TRANSAUTOMATIC TRANSAXLE ASSY (U151E/U151F)
40−47
U151E, U151F A/T REPAIR MANUAL (RM1021U)
(c) Using SST and a press, install the counter drive gear and
bearing to the transaxle case.
SST 09223−15030, 09527−17011, 09950−60020
(09951−00750), 09950−70010 (09951−07150)
NOTICE:
Do not apply excessive pressure to it.
94. INSTALL1ST & REVERSE BRAKE PISTON
(a) Coat the 2 new O−rings with ATF.
(b) Install the 2 O−rings to the 1st & reverse brake piston.
NOTICE:
SAssemble the O−ring carefully not to have a twist and
a pinching.
SApply enough ATF to the O−ring prior to assembling.
(c) Coat a 1st & reverse brake piston with ATF, install it to the
transaxle case.
NOTICE:
Be careful not to damage the O−ring.