TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 88 of 926
TM 9-2320-283-20-1
PRINCIPLES OF OPERATION.
1-20.
BRAKE SYSTEM.
a.
Air Brake System Arrangement.
NOTE
The components shown below are described in paragraphs 1-19 and 1-20.
1. FRONT AXLE BRAKE CHAMBER (2) (para 1-
20b)
2. PARKING BRAKE VALVE (para 1-20b)
3. DRAINCOCK (para 1-19)
4. PLUG (2)
5. SECONDARY RESERVOIR (para 1-19)
6. DOUBLE CHECK VALVE (para 1-19)
7.
90° CHECK VALVE (para 1-19)
8. 90° ELBOW
9. DRAINCOCK (para 1-19)
10. 45° ELBOW
11. 45° CHECK VALVE (para 1-19)
12. DOUBLE CHECK AND QUICK RELEASE
VALVE (para 1-20b)
13. FORWARD-REAR AXLE BRAKE CHAMBER (2)
(para 1-20b)
14. RELAY VALVE (para 1-20b)
15. REAR-REAR AXLE AIR BRAKE CHAMBER (2)
(para 1-20b)
16. QUICK RELEASE VALVE (2) (para 1-20b)
17. ADAPTER
18. 90° ELBOW
19. PLUG
20. PRIMARY RESERVOIR (para 1-19)
21. AIR DRYER (para 1-19)
22. TRACTOR PROTECTION VALVE (para 1-20b)
23. AUTOMATIC DRAIN VALVE (para 1-19)
24. 90° ELBOW
25. QUICK RELEASE COUPLER (para 1-19)
26. SAFETY VALVE (para 1-19)
27. SUPPLY RESERVOIR (para 1-19)
28. 90° ELBOW (2)
29. CHECK VALVE (para 1-19)
30. TRAILER SUPPLY VALVE (para 1-19)
31. TRAILER HAND CONTROL BRAKE VALVE
(pare 1-20b)
32. BRAKE TREADLE VALVE (para 1-20b)
33. DOUBLE CHECK VALVE (para 1-20b)
34. DOUBLE CHECK AND STOPLAMP VALVE
(para 1-20b)
35. FRONT AXLE RATIO VALVE (para 1-20b)
36. AIR COMPRESSOR/GOVERNOR (para 1-19)
TA 236788
1-68
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