Reaction Gear and Carrier Inspection and Installation

REACTION GEAR AND CARRIER INSPECTION





1. Inspect the reaction carrier/support thrust bearing assembly (683) for damage.
2. Inspect the reaction gear support to case bearing (692) for damage.





3. Inspect the internal reaction gear (684) and the internal reaction gear support (685) for proper assembly, stripped splines, cracks, teeth, and lug damage.





4. Check the reaction carrier pinion end play. The end play must not exceed 0.61 mm (0.024 inch).
Inspect the reaction carrier for the following conditions:
- Pinion gear damage
- Proper pinion staking
- Excessive pinion washer wear
- Key stoned pinion gears

5. Ensure that the pinions turn freely.





6. Inspect the reaction carrier captive thrust bearing for wear or damage.
6.1. Without touching the pinion gears, place a bushing or an output shaft sleeve (690) onto the bearing race, and turn it with the palm of your hand.
6.2. Any imperfections will be felt through the bushing.

REACTION GEAR AND CARRIER INSTALLATION





1. Install the reaction carrier/support thrust bearing assembly (683) into the internal reaction gear support.
2. Install the reaction gear support to case bearing (692) onto the internal reaction gear support.
3. Install the internal reaction gear (684) and the internal reaction gear support (685) into the case.





4. Install the reaction carrier assembly (681) into the internal reaction gear.