TM 9-2320-260-20
8-15. BLEEDING SERVICE BRAKE SYSTEM (Contd)
NOTE
q Air-hydraulic cylinder must be bled before bleeding wheel
cylinders.
When bleeding all wheel cylinders, start with the wheel cylinder
farthest from air-hydraulic cylinder.
q When brake line is removed, bleed wheel cylinder at that
wheel only.
21.
Clean bleeder screw (11) on wheel cylinder (10).
22.
Place hose (5) on bleeder screw (11) and place opposite end of hose (5) in container (6) half full of
brake fluid. Ensure hose (5) is below fluid level in container (6).
23.
Open bleeder screw (11) and allow brake fluid to flow from wheel cylinder (10) until no air bubbles
are observed in container (6).
24.
Close bleeder screw (11), disconnect hose (5), and properly dispose of fluid from container (6).
Tighten bleeder screw (11) 10-20 lb-ft ( 14-27 Nm).
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