Isuzu KB P190. Manual — part 1134

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 (0.7 kgf⋅⋅⋅⋅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 (0.6 kgf⋅⋅⋅⋅m/52 Ib⋅⋅⋅⋅in)

24ASSY003

5. Low one-way clutch inner race

• Install new seal rings to the low one-way clutch inner

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 (0.0039~0.0098 in)

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, a 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.

• Temporarily tighten the 7 fixing bolts.

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 (2.4 kgf⋅⋅⋅⋅m/17 Ib⋅⋅⋅⋅ft)

32ASSY007

9. Dish plate, driven plates, drive plates, 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.

7A4-62 UNIT REPAIR (JR405E)

RTW37AMF0001-X

36ASSY10

• Install the retaining plate (4).

37ASSY011

• Install the snap ring.

38L&R03

• Force compressed air (390 kPa/4.0 kgf/cm

2

/57 psi)

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.