TB 9-2320-335-13&P
7-2.1. SERVICE BRAKE SYSTEM BLEEDING INSTRUCTIONS
(SERIAL NUMBERS 300000 AND ABOVE) (Cont'd)
c. Master Cylinder Bleeding
NOTE
Perform this procedure prior to installing master cylinder on vehicle.
1.
Secure master cylinder flange (7) in vise (5).
2.
Install threaded plug (4) in brake line opening in master cylinder flange (7).
3.
Attach threaded plug (3) to end of bleeder hose (2) and install in brake line opening in master
cylinder flange (7).
4.
Install opposite end of bleeder hose (2) in master cylinder reservoir (1).
5.
Fill master cylinder reservoir (1) with silicone brake fluid to MAX line.
NOTE
Whenever the master cylinder is filled with silicone brake fluid,
let cylinder sit undisturbed for 30 minutes minimum to ensure all
visible as well as minute air bubbles are gone.
6.
Slowly push piston (6) into master cylinder flange (7). While holding piston (6) in master cylinder
flange (7) pinch bleeder hose (2) off and release piston (6). Piston will return automatically.
7.
Repeat step 6 until no air bubbles remain in brake fluid.
8.
Remove bleeder hose (2) from master cylinder reservoir (1).
9.
Install cover on master cylinder reservoir (1) and remove from vise (5).
10.
Remove two threaded plugs (3) and (4) from brake line openings in master cylinder flange (7).
NOTE
All calipers will need to be bled after installing master cylinder on
vehicle to remove remaining air from brake system.
11.
Install master cylinder on vehicle (para. 7-5.1).
2
1
7
3
6
~
4
5
FOLLOW-ON TASKS: Lower and secure hood (TM 9-2320-387-10).
Operate vehicle (TM 9-2320-387-10) and check for proper operation.
7-5
