TM 55-2210-224-34
4-11. AUTOMATIC BRAKE VALVE (cont)
DISASSEMBLY (cont)
5.
Remove three screws (7), cutoff valve control knob (8), spring (9), cutoff pilot valve operating shaft (10), and insignia
plate (11).
6.
Remove retaining ring (12) and remove cutoff pilot valve position selector plug (13). Remove O-ring (14) from plug.
7.
Remove cutoff valve (15). Remove five O-rings (16) from valve.
8.
Remove two spillover check valve capnuts (17).
9.
Remove two retaining rings (18) by inserting a 1/16-inch (1.6 mm) rod into hole at side of two spillover check valve
capnuts (17). Press inward on retaining ring and remove retaining rings.
10. Remove two check valves (19) and springs (20).
11. Remove five nuts (21) and separate cam housing (22) from brake valve body (23).
12. Remove cam shaft (24).
13. Remove emergency valve cam (25), regulating valve cam (26), suppression valve cam (27), and vent valve cam
(28). 14. Remove pin (29) and cam dog (30).
15. Remove four O-rings (31) and O-ring (32) from mounting face of brake valve body (23).
16. Remove two cylindrical spring pins (33) and remove two cam dogs (34) from cam pin (35).
17. Remove four nuts (36), cover (37), and gasket (38).
18. Remove cutoff valve spring (39), emergency valve spring (40), and suppression valve spring (41).
19. Remove emergency valve (42). Remove four O-rings (43) from emergency valve.
20. Remove suppression valve (44). Remove five O-rings (45) from suppression valve.
21. Remove vent valve assembly (46).
22. Disassemble vent valve assembly (46) by removing O-ring (47), retainingring (48), spring (49), O-ring (50), housing
(51), seal (52), and retainer (53) from vent valve cage (54).
23. Remove cutoff valve assembly (55).
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