TM 10-3930-669-20 15-2.  CAB POSITIONING/REPLACEMENT (CONT). (9) Loosen screw (21) and remove cable (22) from clevis (23). (10) Position cable (22) back to prevent damage (11) Loosen fitting (24) and remove brake line (25) from fitting (26). (12) Remove brake pressure switch (27) from master cylinder (28). (13) Disconnect connector P21 (29) from connector S21 (30). (14) Close cab engine access panel (3). 15-8