ENGINE AR-COMPLETE 3244037 - Caterpillar

6. Disconnect air hose (1) from the secondary and parking brake chamber. 7. Remove fitting (2). Replace the fitting with an air hose fitting. The shop air supply must be a minimum of 365 kPa (52 psi).8. Connect shop air (3) to the air hose fitting, and release the mechanically actuated brake.9. Remove the cotter pin and pin (5) that holds the yoke of the brake chamber to the lever for the parking brake.10. Remove two nuts (4) and the washers that hold the brake chamber to the mounting bracket.11. Remove the shop air line from the chamber.12. Remove secondary and parking brake chamber (6) from the machine. The following steps