CAB G 9V9361 - Caterpillar

Start By:a. remove front or rear brake master cylinder and rotochamber. 1. Remove bleed screw (1).2. Use tooling (A) to loosen nut (3).3. Remove end cap (2).4. Use tooling (A) to loosen nut (5).5. Remove cylinder (4). Remove the O-rings and nuts (3) and (5) from cylinder (4).6. Remove nuts (7) and cylinder (8).7. Push piston (15) down until power piston (24) clears body (6).8. Remove snap ring (20) from power piston (24) with tooling (B). Remove power piston (24) and valve (21) from rod (17). Remove the piston and rod assembly and spring (16) from body (6).9. Remove switch (19) and rod (18) from body (6). Remove the seal from rod (18).10. Remove seal (23) from power piston (24). Remove seal (22) from valve (21).11. Remove bolts (13) and ring (12). Remove seal (10).12. Remove spring (11) from ring (12). Remove O-ring (9) from piston (15).13. If required remove nut (14) and piston (15) from rod (17). Remove the O-ring from rod (17).14. Remove the seals from the rod bore in body (6). The following steps are for assembly of the brake master cylinder and rotochamber. Put clean SAE 10W oil on all seals before the cylinder is assembled.15. Install the seals in the rod bore of body (6).16. If piston (15) was removed from rod (17), install the O-ring on rod (17). Install piston (15) and nut (14) on rod (17). Tighten nut (14) to a torque of 145 38 N m (105 28 lb.ft.).17. Install O-ring (9) on piston (15). Install spring (11) on ring (12).18. Install seal (10), ring (12), and bolts (13). Tighten bolts (13) to a torque of 11 1 N m (8 1 lb.ft.).19. Install seal (22) in valve (21). Install seal (23) on power piston (24).20. Install the seal on rod (18). Install rod (18) and switch (19) in body (6). Tighten switch (19) to a torque of 8 3 N m (6 2 lb.ft.).21. Install the piston and rod assembly and spring (16) in body (6). Push piston (15) down until the end of rod (17) clears body (6).22. Install valve (21) and power piston (24) on rod (17). Use tooling (B) to install snap ring (20) in power piston (24).23. Install cylinder (8) and nuts (7). Tighten nuts (7) to a torque of 14 3 N m (10 2 lb.ft.).24. Install nuts (3) and (5) and the O-rings on cylinder (4).25. Install cylinder (4) in body (6) until it bottoms out. [Tighten cylinder (4) to a maximum torque of 14 N m (10 lb.ft.).] Tighten nut (5) to lock cylinder (4) in place.26. Install end cap (2) on cylinder (4) until it bottoms out. [Tighten end cap (2) to a maximum torque of 14 N m (10 lb.ft.).] Then back it off up to one turn to line up the bleed screw hole and reservoir port within 10°. Tighten nut (3) to hold end cap (2) in position.27. Install bleed