Part 4
ASSEMBLY
1. Install D-rings and oil seals on forward clutch piston and overrun clutch piston.
- Take care with direction of oil seal.
- Apply ATF to both parts.
2. Install overrun clutch piston assembly on forward clutch piston while turning it slowly.
- Apply ATF to inner surface of forward clutch piston.
3. Install forward clutch piston assembly on forward clutch drum while turning it slowly.
- Apply ATF to inner surface of drum.
4. Align notch in forward clutch piston with groove in forward clutch drum.
5. Install return spring on piston.
6. Install spring retainer on return springs.
7. Set Tool on spring retainer and install snap ring while compressing return springs.
- Set Tool directly above return springs.
- Do not align snap ring gap with spring retainer stopper.
8. Install drive plates, driven plates, retaining plate and dish plate for overrun clutch.
9. Install snap ring for overrun clutch.
10. Measure clearance between overrun clutch retaining plate and snap ring. If not within allowable limit, select proper retaining plate.
Specified clearance:
Standard: 1.0 - 1.4 Nm (0.039 - 0.055 inch)
Allowable limit: 2.0 Nm (0.079 inch)
Overrun clutch retaining plate: Refer to image.
11. Install drive plates, driven plates, retaining plate and dish plate for forward clutch.
Take care with the order and direction of plates.
12. Install snap ring for forward clutch.
13. Measure clearance between forward clutch retaining plate and snap ring. If not within allowable limit, select proper retaining plate.
Specified clearance:
Standard: 0.45 - 0.85 Nm (0.0177 - 0.0335 inch)
Allowable limit: 1.85 Nm (0.0728 inch)
Forward clutch retaining plate: Refer to image.
14. Check operation of forward clutch.
15. Check operation of overrun clutch.
LOW & REVERSE BRAKE
DISASSEMBLY
1. Check operation of low & reverse brake.
a. Apply compressed air to oil hole of transmission case.
b. Check to see that retaining plate moves to snap ring.
c. If retaining plate does not contact snap ring:
- D-ring might be damaged.
- Oil seal might be damaged.
- Fluid might be leaking past piston check ball.
2. Stand transmission case.
3. Remove snap ring.
4. Remove drive plates, driven plates, retaining plate from transmission case.
5. Set Tool on spring retainer and remove snap ring while compressing return springs.
- Set Tool directly above return springs.
- Do not expand snap ring excessively.
6. Remove spring retainer and return springs.
- Do not remove return springs from spring retainer.
7. Apply compressed air to oil hole of transmission case while holding piston.
8. Remove piston from transmission case by turning it.
9. Remove D-ring and oil seal from piston.
INSPECTION
Low & Reverse Clutch Snap Ring, Spring Retainer And Return Springs
- Check for deformation, fatigue or damage.
- Replace if necessary.
- When replacing spring retainer and return springs, replace them as a set.
Low & Reverse Brake Drive Plate
- Check facing for burns, cracks or damage.
- Measure thickness of facing.
Thickness of drive plate:
Standard value: 2.0 Nm (0.079 inch)
Wear limit: 1.8 Nm (0.071 inch)
- If not within wear limit, replace.
ASSEMBLY
1. Install D-ring and oil seal on piston.
- Take care with the direction of the oil seal.
- Apply ATF to both parts.
2. Stand transmission case.
3. Install piston assembly on transmission case while turning it slowly.
- Apply ATF to inner surface of transmission case.
4. Install return springs and spring retainer on piston.
5. Install snap ring while compressing return springs.
- Set Tool directly above return springs.
6. Install drive plates, driven plates, retaining plates and dished plates.
- Do not align the projections on the two dished plates.
- Make sure to put the plates in the correct order and direction.
7. Install snap ring.
8. Measure clearance between retaining plate and snap ring. If not within allowable limit, select proper retaining plate (front side).
Specified clearance:
Standard: 1.4 - 1.8 Nm (0.055 - 0.071 inch)
Allowable limit: 2.8 Nm (0.110 inch)
Retaining plate: Refer to image.
9. Check operation of low & reverse brake.
REAR INTERNAL GEAR, FORWARD CLUTCH HUB AND OVERRUN CLUTCH HUB
DISASSEMBLY
1. Remove snap ring from overrun clutch hub.
2. Remove overrun clutch hub from forward clutch hub.
3. Remove thrust washer from forward clutch hub.
4. Remove forward clutch hub from rear internal gear.
5. Remove end bearing from rear internal gear.
6. Remove thrust washer from rear internal gear.
7. Remove end bearing from forward one-way clutch.
8. Remove one-way clutch from forward clutch hub.
INSPECTION
Rear Internal Gear, Forward Clutch Hub And Overrun Clutch Hub
- Check rubbing surfaces for wear or damage.
Snap Ring, End Bearings And Forward One-Way Clutch
- Check snap ring and end bearings for deformation and damage.
- Check forward one-way clutch for wear and damage.
ASSEMBLY
1. Install forward one-way clutch on forward clutch.
- Take care with the direction of forward one-way clutch.
2. Install end bearing on forward one-way clutch.
- Apply petroleum jelly to end bearing.
3. Install thrust washer on rear internal gear.
- Apply petroleum jelly to thrust washer.
- Align pawls of thrust washer with holes of rear internal gear.
4. Install end bearing on rear internal gear.
- Apply petroleum jelly to end bearing.
5. Install forward clutch hub on rear internal gear.
- Check operation of forward one-way clutch. Hold rear internal gear and turn forward clutch hub. Check forward clutch hub for correct locking and unlocking directions.
- If not as shown in illustration, check installation direction of forward one-way clutch.
6. Install thrust washer and overrun clutch hub.
- Apply petroleum jelly to thrust washer.
- Align pawls of thrust washer with holes of overrun clutch hub.
7. Install overrun clutch hub on rear internal gear.
- Align projections of rear internal gear with holes of overrun clutch hub.
8. Install snap ring to groove of rear internal gear.