Band Apply Servo: Service and Repair

REMOVAL PROCEDURE
^ Tools Required
- J29714-A Servo Cover Depressor
1. Raise the vehicle.
2. Lower the transmission if needed for clearance.
Refer to Transmission Replacement





3. Install the J29714-A.
4. Tighten the bolt in order to compress the servo cover.
5. Remove the servo cover retaining ring.
6. Remove the J29714-A.





7. Remove the servo cover and the O-ring seal. If the servo cover seems to be hung up on the seal, cut and remove the O-ring seal before removing the cover.
8. Remove the 2-4 servo assembly.

DISASSEMBLY PROCEDURE
^ Tools Required
- J22269-01 Piston Remover





1. Remove the following parts:
^ The 4th apply piston
^ The servo return spring





2. Remove the following parts:
2.1. The retainer ring
2.2. The washer
2.3. The spring
2.4. The 2nd apply piston pin





3. Install the J22269-01 in order to compress the second apply piston.
4. Remove the second apply piston retaining ring.
5. Remove the servo cushion spring retainer and the servo cushion spring.





6. Remove the seals from the cover, the housing, and the pistons.

IMPORTANT: Check the case servo bore for damage and sharp edges.

7. Clean all the parts using solvent.
8. Air dry all the parts.
9. Inspect the pistons for porosity and damage.
10. Inspect the seal grooves for damage.
11. Inspect the cover for porosity and damage.
12. Inspect for nicks, cuts, and binding in the seal grooves. If damage is found, check for the cause of the damage.
13. Inspect the springs for kinks and bending.
14. Inspect the pin for wear and burrs.

^ Tools Required
- J33037 Band Apply Pin Tool





1. Install the band apply pin and the J33037.
2. Install the servo cover retaining ring to secure the tool.





3. Apply 11 Nm (98 inch lbs.) torque. If the white line appears in the gauge slot, the pin length is correct.
4. If the white line is not seen in the slot, replace the pin using the following pin identification:
^ One groove, pin length 65.82 - 66.12 mm (2.59 - 2.60 inch)
^ Two grooves, pin length 67.23 - 67.53 mm (2.65 - 2.66 inch)
^ No grooves, pin length 68.64 - 68.94 mm (2.70 - 2.71 inch)
5. Remove the pin and the J33037.





6. Check the 2nd apply piston and the housing dimension.
7. Measure the piston (25) dimension (1)
8. Measure the housing (22) dimension (2)
9. Check the table for the transmission and piston/housing specifications. Refer to 2-4 Servo Pin Selection.

ASSEMBLY PROCEDURE
^ Tools Required
- J22269-01 Piston Remover





1. Install new seals on all the 2-4 servo pistons and the cover.





2. Install the servo cushion spring and the cushion spring retainer in the 2nd apply piston. Use the J22269-01 in order to compress the second apply piston.
3. Install the second apply piston retaining ring.





4. Install the following parts:
4.1. The 2nd apply piston pin
4.2. The spring
4.3. The washer
4.4. The retainer ring





5. Install the following parts:
5.1. The servo return spring
5.2. The 4th apply piston

INSTALLATION PROCEDURE
^ Tools Required
- J29714-A Servo Cover Compressor
1. Install the 2-4 servo assembly into the 2-4 servo bore.





2. Install the J29714-A





3. Tighten the bolt in order to compress the servo cover.
4. Install the servo cover retaining ring.
5. Remove the J29714-A from the oil pan flange.
6. Install the oil pan bolt.
^ Tighten the oil pan bolt to 11 Nm (97 inch lbs.).

NOTICE: Refer to Fastener Notice in Service Precautions.

7. Lower the vehicle.
8. Check the automatic transmission fluid level and add new automatic transmission fluid as needed. Refer to Transmission Fluid Checking Procedure and to Fluid Capacity.