Page 4833 of 5135
4006I−03
D26703
SST
D26704
2nd Brake Piston
Return Spring
C89124
2nd Brake Piston
Return Spring
D26705
− AUTOMATIC TRANSMISSION / TRANSSECOND BRAKE PISTON ASSY (U151E/U151F)
40−91
U151E, U151F A/T REPAIR MANUAL (RM1021U)
SECOND BRAKE PISTON ASSY (U151E/U151F)
OVERHAUL
1. REMOVE 2ND BRAKE PISTON RETURN SPRING
SUB−ASSY
(a) Place SST on the return spring and compress.
SST 09387−00060
(b) Using a screwdriver, remove the snap ring.
(c) Remove the 2nd brake piston return spring.
2. INSPECT 2ND BRAKE PISTON RETURN SPRING
SUB−ASSY
(a) Using vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length:16.61mm (0.6539 in.)
3. REMOVE 2ND BRAKE PISTON
(a) Hold the 2nd brake piston and apply compressed air (392
kPa, 4.0 kgf/cm
2, 57 psi) to the 2nd brake cylinder to re-
move the 2nd brake piston.
Page 4834 of 5135
D26706
O−ring
O−ring
D26706
O−ring
O−ring
D26775
D26704
2nd Brake Piston
Return Spring
40−92
− AUTOMATIC TRANSMISSION / TRANSSECOND BRAKE PISTON ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
4. REMOVE 2ND BRAKE PISTON O−RING
(a) Remove the 2 O−rings from the 2nd brake piston.
5. INSTALL 2ND BRAKE PISTON O−RING
(a) Apply the 2 new O−rings with ATF, install them in the 2nd
brake piston.
NOTICE:
Assemble the O−ring carefully not to have a twist and a
pinching.
6. INSTALL 2ND BRAKE PISTON
(a) Apply the 2nd brake piston with ATF, and install it to the
2nd brake cylinder.
NOTICE:
Be careful not to damage the O−ring.
7. INSTALL 2ND BRAKE PISTON RETURN SPRING
SUB−ASSY
(a) Install the 2nd brake piston return spring.
NOTICE:
Installing the spring sub−assembly, check all of the
springs are fit in the piston correctly.
Page 4835 of 5135
D26703
SST
− AUTOMATIC TRANSMISSION / TRANSSECOND BRAKE PISTON ASSY (U151E/U151F)
40−93
U151E, U151F A/T REPAIR MANUAL (RM1021U)
(b) Place SST on the piston return spring, and compress the
piston return spring with a press.
SST 09387−00060
(c) Using a screwdriver, install the snap ring.
(d) Be sure the end gap of the snap ring is not aligned with
the spring retainer claw.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
groove.
SThis prevents the spring sheet from being deformed.
Page 4836 of 5135
400H2−02
D26426
D26427
40−84
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
DIRECT CLUTCH ASSY (U151E/U151F)
OVERHAUL
1. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
(a) Install the intermediate shaft and needle roller bearing on
the transaxle rear cover .
(b) Using a dial indicator, measure the reverse clutch pack
clearance while applying and releasing compressed air
(392 kPa, 4.0 kgf/cm
2, 57 psi).
Pack clearance:0.60−0.82 mm (0.02362−0.03228 in.)
If the pack clearance is not within standard, inspect the discs,
plates and flange.
2. INSPECT PACK CLEARANCE OF DIRECT CLUTCH &
OVERDRIVE CLUTCH
(a) Using a dial indicator, measure the direct clutch & over-
drive clutch pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi).
Pack clearance:0.61−0.83 mm (0.02401−0.03268 in.)
If the pack clearance is not within standard, inspect the discs,
plates and flange.
Page 4837 of 5135

D26419
Snap Ring
D26420
D26718
D26422
D26719
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
40−85
U151E, U151F A/T REPAIR MANUAL (RM1021U)
3. REMOVE DIRECT MULTIPLE DISC CLUTCH CLUTCH
DISC
(a) Using a screwdriver, remove the snap ring from the inter-
mediate shaft.
(b) Remove the flange, 3 discs,, 3 plates and cushion plate
from the intermediate shaft.
4. INSPECT DIRECT MULTIPLE DISC CLUTCH CLUTCH
DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
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.
5. REMOVE OVERDRIVE DIRECT CLUTCH DISC
(a) Using a screwdriver, remove the snap ring from the inter-
mediate shaft.
(b) Remove the flange, 4 discs and 4 plates from the inter-
mediate shaft.
6. INSPECT OVERDRIVE DIRECT CLUTCH DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
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 4838 of 5135

D03677
SST
D26424
Clutch
Balancer
Direct Clutch
Drum
D26423
Direct Clutch
Drum
Overdrive
Clutch Return
Spring
D09211
Overdrive Clutch
Return Spring
40−86
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
7. REMOVE OVERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Place SST on the clutch balancer and compress the
spring with a press.
SST 09387−00020
(b) Using a snap ring expander, remove the snap ring from
the direct clutch drum.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
groove.
SThis prevents the spring sheet from being deformed.
SDo not expand the snap ring excessively.
(c) Remove the clutch balancer from the direct clutch drum.
(d) Remove the overdrive clutch return spring from the direct
clutch drum.
8. INSPECT OVERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Using vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length: 25.91mm (1.0201in.)
Page 4839 of 5135

D26463
D26425
D26464
O−ring
D26464
O−ring
D26462
Intermediate
ShaftDirect Clutch
Drum
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
40−87
U151E, U151F A/T REPAIR MANUAL (RM1021U)
9. REMOVE OVERDRIVE DIRECT CLUTCH PISTON
(a) Install intermediate shaft on the transaxle rear cover.
(b) Holding the direct clutch piston with your hand, apply
compressed air (392 kPa, 4.0 kgf/cm
2,57psi)tothe
transaxle rear cover to remove the direct clutch piston.
10. REMOVE OVERDRIVE DIRECT CLUTCH DRUM
SUB−ASSY
(a) Holding the direct clutch drum by hand, apply com-
pressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the transaxle
rear cover to remove the direct clutch drum.
11. REMOVE OVERDRIVE DIRECT CLUCH O−RING
(a) Using a screwdriver, remove the O−ring from the direct
clutch drum.
12. INSTALL OVERDRIVE DIRECT CLUCH O−RING
(a) Coat a O−ring with ATF, and install it to the direct clutch
drum.
NOTICE:
Assemble the O−ring carefully not to have a twist and a
pinching.
13. INSTALL OVERDRIVE DIRECT CLUTCH DRUM
SUB−ASSY
(a) Coat the direct clutch drum with ATF, and install it to the
intermediate shaft.
NOTICE:
SBe careful not to damage the O−ring.
SBe careful not to damage the lip seal of the direct
clutch drum.
Page 4840 of 5135

D26461
Overdrive Direct
Clutch Piston
D26423
Overdrive
Clutch Return
Spring
D26424
Clutch
BalancerDirect Clutch
Drum
D03677
SST
40−88
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
14. INSTALL OVERDRIVE DIRECT CLUTCH PISTON
(a) Apply the overdrive direct clutch piston with ATF, and
install it to the direct clutch drum.
NOTICE:
Be careful not to damage the lip seal of the direct clutch pis-
ton.
15. INSTALL OVERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Install the piston return spring to the direct clutch drum.
NOTICE:
Installing the spring sub−assembly, check all of the
springs are fit in the piston correctly.
(b) Coat the clutch balancer with ATF.
(c) Install the clutch balancer to the direct clutch drum.
NOTICE:
SBe careful not to damage the lip seal of the direct
clutch balancer.
SInstall the clutch balancer carefully not to have a
pinching and any other defects at the sealing lip.
SApply enough ATF to the sealing lip prior to assem-
bling.
(d) Place SST on the clutch balancer and compress the pis-
ton return spring with a press.
SST 09387−00020
(e) Using a snap ring expander, install the snap ring to the di-
rect clutch drum.
(f) Be sure the end gap of the snap ring is not aligned with
the spring retainer claw.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
grove.
SThis prevents the spring sheet from being deformed.
SDo not expand the snap ring excessively.