Troubleshooting guide

3
For more information, visit www.bendix.com or www.foundationbrakes.com • 1-800-AIR-BRAKE (1-800-247-2725)
Handbook Section Index
How to use the Air Brake Handbook
DIN symbols are used in this handbook.
This twelve-section handbook provides an introduction to the use and operation of Bendix air brake systems and
devices.
Components are introduced and shown with typical system diagrams to depict where they are used. As new components
are introduced and their function explained, they gradually build up to a complete functioning air brake system refl ected
in the schematics at the close of this handbook.
Partial system-drawings, displayed throughout the manual, assist in explaining the use of the components. See section
12 for examples of vehicle system schematics.
Contents
Air Brake Handbook Section Page No.
Index and Precautions
Device Index 2
Handbook Section Index 3
General Precautions 4
Glossary 72-76
Section 1: Introduction
An Introduction 6-7
Section 2: The Charging, Air Treatment and Storage System
The Charging, Air Treatment and Storage System 8
Compressors 9-11
Governors, Etc. 12
Air Dryers 13-15
Reservoirs, Etc. 16
Misc. Components 17
Section 3: The Control System
The Control System: Dual Circuit Brake Valves 19
Actuators 20
Foundation Brakes: Drum Brakes (aka S-Cam) 21
Foundation Drum Brakes 22
Air Disc Brakes 23
Slack Adjusters 24
Quick Release, Ratio & Modulating Valves 25
Relay Valves 26
Push-Pull Control Valves 27
Spring Brake Valves 28
Lever-Operated Control Valves 29
Additional Control Valves 30
Air Brake Handbook Section Page No.
Section 4: Tractor Parking, Trailer Charging/ Parking and
Emergency Systems
Tractor/Trailer Parking and Emergency Systems 31
Park Control Valves 31
Dash Control Valves 32
Tractor Protection Valves 33
Trailer Spring Brake Valves 34-35
Section 5: Convertor Dolly Brakes
Trailer/Converter Dolly Brakes 36-37
Section 6: Antilock Braking System
Antilock Braking Systems: Components 38
Truck and Tractor ABS Operation; ATC 39-40
Advanced ABS 41
Advanced ABS Operation and Features 42-43
Trailer ABS Components and Operation 44
PLC, Troubleshooting 45
Advanced Trailer ABS Operation and Features 46
Troubleshooting ABS 47-48
Section 7: Additional Systems and Components
Additional Systems and Components 49-50
Section 8: The Fundamentals of Air Braking
Air Brake System Fundamentals 51-62
Section 9: Air Brake System Troubleshooting Test
Air Brake System Troubleshooting Tests 63-68
Section 10: Bendix Literature and Contact Information
Downloading and Ordering Literature 69-70
Contacting Bendix 69
Section 11: About Bendix
About Bendix Commercial Vehicle Systems LLC 71
Section 12: Typical Air Brake System Schematics
Examples of Air Brake System Schematics 81-89