GEAR AS-PUMP 2P9321 - Caterpillar

The brake shoes are removed for better photo illustration of the brake camshaft and slack adjuster.2. Put small wood blocks between the brake shoes and axle housing before the brake camshaft and slack adjuster is removed. The wood blocks will hold the brake shoes in position.3. Remove pin (1) to disconnect the adjuster assembly from the brake rotochamber. 4. Remove ring (3) from the groove in the camshaft.5. Pull camshaft (5) out of the axle housing as shown.6. Remove the camshaft and slack adjuster (2).7. Remove washer (4) from the camshaft. 8. Remove seal (6) and bearing (8) from the axle housing.9. Remove two seals (7) and bearing (9) from the axle housing.Install Brake Camshafts And Slack Adjusters
1. Install bearing (8) in the axle housing with tooling (A). Install the bearing until it is 8.6 mm (.34 in.) below the outside surface of the axle housing.2. Install the lip type seal over bearing (8) with tooling (A). Install the seal until it is 2.03 mm (.08 in.) below the outside surface of the axle housing and with the lip of the seal toward the bowl assembly as shown.3. Install the other bearing in the axle housing with tooling (A). Install the bearing until it is 7.1 mm (.28 in.) below the outside surface of the axle housing.4. Install the outside lip type seal in the axle housing with tooling (A). Install the seal until it is 2.03 mm (.08 in.) below the outside surface of the axle housing and with the lip of the seal toward the bowl assembly as shown.5. Install the inside lip type seal in the axle housing with tooling (A). Install the seal until it makes contact with the bearing in the axle housing and with the lip of the seal toward the bowl assembly as shown. 6. Install washer (4) on camshaft (5). Slide the camshaft through the axle housing and install the washer and ring (3) on the camshaft.7. Put slack adjuster (2) in position on the camshaft and install the end of the camshaft in the axle housing.8. Put ring (3) in the groove on the camshaft. 9. Put the slack adjuster in position on the rod of the brake rotochamber. Install pin (1) and the cotter pin.10. Install the tires and wheels. See the topic, Install Tires and Wheels, Wheel Bearings and Duo-Cone Seals.11. Make an adjustment to the brakes. See the topic, Adjustment of Brakes in the Testing and Adjusting Manual.