TM 9-2320-365-20-3
CHAPTER 11
BRAKE SYSTEM MAINTENANCE
RESTRICTED MAINTENANCE NOTICE
Units not authorized SC 4910-95-CL-A72 (SHOP EQUIPMENT, COMMON NO. 2) in their T.O.E. may
be unable to perform some of the maintenance tasks described in this chapter. If the required tools
are not authorized, the equipment must be submitted to DS Maintenance for repair.
Section I. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
11-1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Section II. MAINTENANCE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
11-2. FRONT BRAKE SHOES REPLACEMENT/ADJUSTMENT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
11-3. REAR BRAKE SHOES REPLACEMENT/ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9
11-4. FRONT BRAKE PLUNGER ASSEMBLY REPLACEMENT/REPAIR . . . . . . . . . . . . . . . . . . . . . . . 11-17
11-5. REAR BRAKE PLUNGER ASSEMBLY REPLACEMENT/REPAIR . . . . . . . . . . . . . . . . . . . . . . . . 11-23
11-6. REAR SPRING BRAKE CAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-30
11-7. FRONT BRAKE AIR CHAMBER REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-33
11-8. REAR BRAKE AIR CHAMBER REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-37
11-9. FOOT CONTROL VALVE AND BRAKE FOOT PEDAL REPLACEMENT . . . . . . . . . . . . . . . . . . .
11-45
11-10. LOAD SENSING VALVE AND CONTROL CABLE REPLACEMENT/ADJUSTMENT . . . . . . . . . . . 11-53
11-11. ANTI-COMPOUNDING RELAY VALVE REPLACEMENT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-62
11-12. INVERSION VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-66
11-13. RELAY VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-70
11-14. TWO-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-74
11-15. FRONT AXLE QUICK RELEASE VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-77
11-16. AIR BRAKE PROTECTING VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-81
11-17. PARK CONTROL TWO-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . .
11-85
11-18. SYSTEM PARK AND TRAILER AIR SUPPLY VALVES REPLACEMENT . . . . . . . . . . . . . . . . . . .
11-91
11-19. BRAKE AIR HOSES REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-96
11-20. SECONDARY AND PRIMARY AIR TANKS REPLACEMENT
. . . . . . . . . . . . . . . . . . . . . . . . . .
11-106
11-21. FRONT GLADHAND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-116
11-22. REAR GLADHAND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-119
11-23. SERVICE GLADHAND TWO-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . .
11-123
11-24. EMERGENCY GLADHAND TWO-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . . . . . . .
11-126
11-25. STOPLIGHT SWITCH REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-129
11-26. FRONT GLADHAND ONE-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . .
11-131
11-27. PRESSURE PROTECTION VALVE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-135
11-28. LOW PRESSURE TRANSMITTER TWO-WAY CHECK VALVE REPLACEMENT . . . . . . . . . . . .
11-139
11-29. AIR COMPRESSOR GOVERNOR ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-144
Section I. INTRODUCTION
11-1. INTRODUCTION
This chapter contains maintenance instructions for replacing, repairing, and adjusting brake system components
authorized by the Maintenance Allocation Chart (MAC) at the Unit Maintenance level.
Change 1
11-1
