This module uses simplified hydraulic relationships and fictional teaching values. Pressure, force, travel, restriction and compliance outputs are not OEM specifications, bleed procedures, service limits or authorization to open a brake system. Real brake service is safety-critical. Use the exact vehicle procedure, approved fluid, contamination controls, lifting/support methods, PPE and required scan-tool/HCU procedures.
Turn pedal force into controlled hydraulic evidence
13.1 established the stopping job. This module traces how the hydraulic system transmits driver input through a tandem master cylinder and split plumbing. Next planned module: 13.3 · Disc, Drum & Parking Brakes.
Trace pressure from the pedal to the wheel circuits
Change the input and watch pressure, force and pedal-response relationships move
This is a fictional teaching model. Restriction/compliance values represent response tendencies only; a static sealed hydraulic system and an actual dynamic brake circuit are more complex.
Model assumptions: incompressible-fluid pressure relationship for the ideal pressure term, simplified pedal leverage, fictional total wheel-piston area, and normalized dynamic penalties for compliance/restriction. Do not use these outputs as service specifications.
Separate pressure generation, pressure transmission and pressure release
Ordered hydraulic diagnostic workflow
Complete the sequence in order.
Evidence
Best supported conclusion / next step
10-question knowledge check
Online hydraulic reasoning is not hands-on brake-system competency
Use approved trainers/vehicles, exact service information and contamination controls. Observe the learner safely identifying the circuit, interpreting pedal/pressure evidence, selecting a test and documenting verification.
Student: ____________________ Date: __________ Instructor: ____________________