TM 9-2320-260-20
8-15. BLEEDING SERVICE BRAKE SYSTEM (Contd)
12. Remove four locknuts (8), screws (1), washers (9), and shield (7) from air-hydraulic cylinder (4).
Discard locknuts (8).
13.
Clean upper and lower bleeder screws (2) and (3) on air-hydraulic cylinder (4).
14.
Install hose (5) on upper bleeder screw (2) and place opposite end of hose (5) in clear container (6)
half full of brake fluid. Ensure hose (5) is below fluid level in container (6).
Open upper bleeder screw (2) and allow brake fluid to flow from air-hydraulic cylinder (4) until no
15.
air bubbles are observed in container (6).
Close upper bleeder screw (2) and disconnect hose (5).
16.
Place hose (5) on lower bleeder screw (3). Ensure opposite end of hose (5) is below fluid level in
17.
container (6).
Open lower bleeder screw (3) and allow brake fluid to flow from air-hydraulic cylinder (4) until no
18.
air bubbles are observed in container (6).
19.
Close lower bleeder screw (3), disconnect hose (5), and properly dispose of fluid from container (6).
Tighten upper and lower bleeder screws (2) and (3) 10-20 lb-ft (14-27 Nm).
20.
Install shield (7) on air-hydraulic cylinder (4) with four washers (9), screws (1), and new locknuts (8).
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