SHAFT-AXLE 5T2195 - Caterpillar

Start By:a. remove tires and wheels, wheel bearings and Duo-Cone seals (scraper) Photos are of the 621R brakes. The removal and installation steps are the same for the 621S.1. Remove the shields from behind the brake shoes. 2. Remove brake springs (1) with tool (A). 3. Cut lockwire (4) and remove two bolts (3).4. Remove snap ring (2), retainer (5) and the felt washer from each pin that holds the brake shoes to the axle housing.5. Remove pins (7). Remove brake shoes (6). 6. Remove twenty-seven nuts (8) and washers that hold the brake drum and guard in the wheel.7. Fasten a hoist to brake drum (9) and remove it from the wheel. The weight of the brake drum is 54 kg (120 lb.).8. Remove guard (10) from the wheel. The following steps are for installation of the brake shoes and drums.9. Install guard (10) in the wheel.10. Fasten a hoist to the brake drum and install it in the wheel.11. Install nuts (8) and washers that hold the brake drum and guard in the wheel. Tighten nuts (8) to a torque of 135 15 N m (100 11 lb.ft.).12. Put brake shoes (6) in position on the axle housing and install pins (7).13. Install the felt washer, retainer (5), and snap ring (2) on the pins. Make sure bolts (3) are tightened on the flats on pins (7).14. Install bolts (3) and lock wire (4).15. Install brake springs (1) with tool (B).End By:a. install tires, wheels, wheel bearings, and Duo-Cone seals (scraper).