11. Underdrive Brake Removal

Underdrive Brake Removal

Tools Required
^ J7872 Magnetic Base Indicator Set
^ J23327 Clutch Spring Compressor
^ J37282 Underdrive Brake Piston Compressor





1. Use the J7872 in order to measure the underdrive brake assembly (1) clearance.
2. Apply 92 - 785 kPa (57 - 114 psi) of compressed air into the underdrive brake apply passage (2). Measure the underdrive brake assembly clearance.
3. The underdrive brake assembly clearance should fall within 1.070 - 2.050 mm (0.0421 - 0.0807 inch).
4. If the underdrive brake assembly clearance does not fall within specification, inspect the underdrive brake assembly components for excessive wear or damage.





5. Install a J23327 with a J37282 and compress the underdrive brake piston return spring until the underdrive brake piston return spring snap ring (1) can be removed.





6. Remove the underdrive brake piston return spring snap ring (1) from the transaxle case.
7. Remove the J23327 and the J37282 from the transaxle case.





8. Remove the underdrive brake flange (2), the three plates (1) and the three discs (3) from the transaxle case.





9. Remove the underdrive brake piston return spring (2) from the transaxle case (1).





10. Remove the two seal rings (1) from the underdrive clutch drum support (2).





Caution: Refer to Safety Glasses in Service Precautions.

Important: When using compressed air to remove components, air pressure should not exceed 98 kPa (14 psi).

11. Remove the underdrive brake piston from the transaxle case by slowly applying low pressure compressed air into the underdrive brake apply passage (2).