Page 4233 of 4264
UNIT REPAIR (JR405E) 7A4-59
18CASE-AY43
Use a pin punch to drive the manual plate spring pin into
place.
21CASE-AY48
3. Detent spring
Install the detent spring and tighten the fixing bolt to the
specified torque.
Torque: 7 N
m (61 Ib
in)
23CASE-AY53
4. Harness assembly
Apply automatic transmission fluid to the new O-ring and
install them to the harness assembly.
Install the harness assembly to the transmission case.
Tighten the fixing bolt to the specified torque.
Torque: 6 N
m (52 Ib
in)
24ASSY003
5. Low one-way clutch inner race
Install new seal rings to the low one-way clutch inne
r
race.
25ASSY126
Measure the gap between the seal ring and the ring
groove.
If the measured valve is outside the specified range the
low one-way clutch inner race must be replaced.
Sealing ring and ring groove gap:
0.10~0.25 mm (0.0004~0.001 in)
Page 4234 of 4264
7A4-60 UNIT REPAIR (JR405E)
26L&R01
6. Low and reverse brake piston
Install new seal rings to the low and reverse piston.
RTW47ASH000701
As shown in a figure, sealing lip is attached.
27ASSY004
Install the low and reverse brake piston to the
transmission case.
28ASSY005
7. Return spring
Install the return spring to the low and reverse brake
piston.
29ASSY006
8. Low one-way clutch inner race
Install the low one-way clutch inner race to the
transmission case.
Temporarity tighten the 7 fixing bolts.
Page 4235 of 4264
UNIT REPAIR (JR405E) 7A4-61
31ASSY074
Tighten each of the bolts a little at a time to the specified
torque.
Be sure that the return spring and the low one-way
clutch inner race installation position does not change as
you tighten the bolts.
Torque: 24 N
m (17 Ib
ft)
32ASSY007
9. Dish plate, driven plate, drive plate, and retaining plate
(low and reverse brake)
Install the dish plate (1) followed by the 6 driven plates
(2) and drive plates (3) sets.
33ASSY008
34ASSY009
35N-SPG02
Install the N-type spring.
Page 4236 of 4264
7A4-62 UNIT REPAIR (JR405E)
RTW37AMF0001-X
36ASSY10
Install the retaining plate (4).
37ASSY011
Install the snap ring.
38L&R03
Force compressed air (392 kPa/4.0 kg/cm2) through the
oil passages of the transmission case to check low and
reverse brake operation.
If the low and reverse brake does not operate, check the
seal rings for damage and replace if necessary. Also
check that no parts have been installed out of place.
Page 4237 of 4264
UNIT REPAIR (JR405E) 7A4-63
39L&R04
249L300003
Measure the clearance between the low and reverse
retaining plate and the snap ring.
If the clearance is out side the specified range, replace
the existing retaining plate with a new plate of the prope
r
size (thickness).
Low and reverse retaining and snap ring clearance:
0.7~1.1 mm (0.028~0.043 in)
Available low and reverse brake retaining plate
thickensses
5.2 mm (0.205 in)
5.4 mm (0.213 in)
5.6 mm (0.220 in)
5.8 mm (0.228 in)
6.0 mm (0.236 in)
10.Dish plate, drive plate, driven plate, and retaining plate
(2-4 brake)
NOTE:
It is careful in the attachment direction of dish plate (1).
If 2-4 brake clearance measurement is required, it must be
done now.
Brake clearance cannot be measured after the carrier
assembly has been installed.
402-4B08
Install the 2-4 brake dish plate to the transmission case
(plate contact surface).
Page 4238 of 4264
7A4-64 UNIT REPAIR (JR405E)
412-4B09
Install the drive plate, driven plate, and the retaining
plate.
422-4B10
432-4B11
442-4B12
11.2
– 4 brake piston and 2 – 4 brake retainer
Install new seal ring to the 2-4 brake piston.
Install the 2-4 brake piston to the 2-4 brake retainer.
452-4B15
Install the 2-4 brake piston and the 2-4 brake retainer to
the transmission case.
Pay close attention to the retainer projection from the
case groove.
Page 4239 of 4264

UNIT REPAIR (JR405E) 7A4-65
472-4B17
Install the spring compressor to the transmission case.
Spring compressor: 5-8840-2764-0
NOTE:
Be sure that the spring compressor is perfectly centered
(an off-center special tool will damage the return spring).
Use the spring compressor to force the 2-4 brake
retainer.
482-4B18
NOTE:
To avoid damaging the return spring, apply as little force
as possible to the 2-4 brake retainer.
Install the snap ring.
492-4B22
Force compressed air (392 kPa/4.0 kg/cm2) through the
oil passages of the transmission case to operate and
break-in the 2-4 brake.
502-4B19
Measure the clearance between the 2-4 brake retainer
and the retaining plate.
If the clearance is outside the specified range, replace
the existing brake retainer with a new one of the prope
r
size (thickness).
2 – 4 brake retainer and retaining plate clearance:
1.0~1.4 mm (0.039~0.055 in)
Available 2-4 brake retaining plate thicknesses
5.4 mm (0.213 in)
5.6 mm (0.220 in)
5.8 mm (0.228 in)
6.0 mm (0.236 in)
6.2 mm (0.244 in)
6.4 mm (0.252 in)
Use the spring compressor to release the 2-4 brake.
Page 4240 of 4264
7A4-66 UNIT REPAIR (JR405E)
RTW47ASH000401