Air & Brake System - Technical Revision Pack

Air & Braking Systems: Technical Revision Pack

The free articles tell you what the air and braking systems do. This pack shows you how they work together, what goes wrong, and how to think your way through a fault.

Compressed air and braking are two halves of the same story: the air system is what makes the brakes available at all. This pack covers both in one place, going deeper than the website articles on how the systems behave, how a brake demand is actually fulfilled, and why a small air fault can stop a whole train.

Inside the pack:

• Air system: overview, key components, working principle (including drying and regeneration) and common faults
• Braking system: overview, key components, a step-by-step flowchart of how a brake demand is fulfilled (regenerative, rheostatic and pneumatic blending, plus wheel slide protection), and common faults
• How the two systems connect: why an air leak can trigger an Unsolicited Brake Application even when the brakes themselves are fine
• Fault-finding flowcharts: Unsolicited Brake Application and dragging brake, worked through as decision trees
• Diagram and flow exercises: label the air supply flow and brake components from memory, each with a full answer key
• Comparison table: rheostatic vs regenerative braking
• Revision Q&A with answers