Module 1	Introduction to Brake Systems
Module 2	Personal Safety Around Vehicles and Air Brake Systems
Module 3	Service Brake Chambers, Slack Adjusters and Foundation Brakes
Module 4	The Supply System
Module 5	The Service Brake System
Module 6	The Spring Brake System (Park / Emergency Brakes)
Module 7	Service and Spring Brake System Options and Design Variables
Module 8	The Tractor Protection and Trailer Supply System
Module 9	The Trailer Service Brake Control System
Module 10	Trailer Brake Systems
Module 11	Anti-lock Brake System (ABS) Basics
Module 12	Air Brake System Inspection, Maintenance and Testing

MODULE 4	The Supply System
Supply System - Introduction and Overview		ABI-CE 4-1 Illustration
Air Compressor Components - Drives and Mountings		ABI-CE 4-2 Illustration
Air Compressor Component Identification and Operation		ABI-CE 4-3 Illustration
Air Compressor Cooling and Lubrication		ABI-CE 4-4 Illustration
Optional Compressor Induction System      (Utilizing Turbo-Charger Boost Pressure)		ABI-CE 4-5 Illustration
Air Dryer Types		ABI-CE 4-6 Illustration
Desiccant Air Dryer - Component Identification and Operation		ABI-CE 4-7 Illustration
Aftercooler Condensing Air Dryer		ABI-CE 4-8 Illustration
Supply Tank & Service Reservoirs		ABI-CE 4-9 Illustration
Alcohol Evaporators & Injectors		ABI-CE 4-10 Illustration
Governor		ABI-CE 4-11 Illustration
One-way Check Valve		ABI-CE 4-12 Narrated Animation
Safety Valve (Over-Pressure Relief Valve)		ABI-CE 4-13 Illustration
Drain Valves (Manual and Automatic)		ABI-CE 4-14 Illustration
Air Pressure Gauges		ABI-CE 4-15 Illustration
Low Air Pressure Warning Devices		ABI-CE 4-16 Illustration
Supply System Operation		ABI-CE 4-17 Narrated Animation
Pressure Ranges and Rise Times		ABI-CE 4-18 Illustration