Overdrive (Planetary Gear Side)
INSPECT
- With the overdrive clutch drum held stationary, turn the input shaft clockwise to see that it turns smoothly and counter clockwise to see that it locks.
REMOVE OR DISCONNECT
^ Tool Required:
- J 41681 Clutch Spring Compressor
1. Overdrive planetary gear from overdrive clutch drum.
MEASURE
^ Tool Required:
- J 8001 Dial Indicator Set
1. Temporarily install overdrive clutch drum to oil pump assembly. Place the J 8001 plunger on the overdrive clutch piston and apply 392 to 785 kPa (57 to 114 psi) of compressed air into oil passage indicated in the image and measure movement of the overdrive clutch piston. Standard overdrive clutch piston stroke is 1.47-2.28 mm (0.058-0.089-inch). If overdrive clutch piston stroke is not within specification, replace cushion clutch plate or clutch disc to adjust to specification.
2. One snap ring retaining brake hub to overdrive clutch drum.
3. Brake hub from over drive clutch drum.
4. One snap ring, cushion plate, backing plate and clutch disc from overdrive clutch drum.
5. Using a J 41681 and a press, compress overdrive clutch piston and remove snap ring.
NOTICE: When using compressed air to remove components, air pressure should not exceed 98 kPa (14 psi).
6. Temporarily install overdrive clutch drum to oil pump assembly. Apply low compressed air into oil passage indicated in the image and remove overdrive clutch piston.
7. Inner and outer O-rings from overdrive clutch piston.
8. Using a flat bladed screw driver remove snap ring from overdrive planetary gear.
9. One-way clutch, thrust planetary washer and thrust bearing from overdrive planetary gear.
CLEAN
- All overdrive clutch components and dry thoroughly.
INSPECT
- Overdrive clutch disc for excessive wear or damage. Replace as necessary.
- Overdrive clutch piston for cracks or porosity. Replace as necessary.
- That the check ball is free by shaking the piston.
- Apply low air pressure to check ball opening and check for leakage.
- One-way clutch flange. Replace as necessary.
- Planetary thrust washer. Replace as necessary.
INSTALL OR CONNECT
^ Tool Required:
- J 41681 Clutch Spring Compressor
- J 36850 Transjel Transmission Assembly Lubricant
Important
- When installing thrust planetary washer, install with the oil groove facing the front.
- When installing one-way clutch outer bearing race, install with the flange facing the font.
- When installing one-way clutch snap ring, Do not align opening of snap ring with lug on clutch piston spring retainer.
1. Apply J 36850 to thrust bearing, thrust planetary washer and install into overdrive planetary gear.
2. One-way clutch to overdrive planetary gear.
3. Snap ring to overdrive planetary gear.
4. New O-rings to inner and outer to overdrive clutch piston lubricate with A/T Fluid.
5. Overdrive clutch piston to clutch drum.
6. Overdrive clutch piston return springs to clutch drum.
7. Using a J 41681 compress overdrive clutch piston and install snap ring.
Important
- When installing cushion plate, Refer to the image.
8. Clutch disc, backing plate, cushion plate, and snap ring to overdrive clutch drum
9. Brake hub to over drive clutch drum.
10. One snap ring securing; brake hub to overdrive clutch drum.