Chabot College Fall 2010 Course Outline for Automotive Technology 65 AUTOMOTIVE BRAKING SYSTEMS Catalog Description: 65 - Automotive Braking Systems (May be repeated three times) 3 units Diagnosis, inspection, repair, and adjustment of modern automotive brakes and anti-lock braking systems. Includes theory of operation, the study of basic laws of hydraulics, methods of repair, and diagnosis, brake service equipment. Prerequisite: Automotive Technology 50 (may be taken concurrently) or equivalent, Strongly Recommended: Industrial Technology 74 (may be taken concurrently). 1.5 hours lecture, 5 hours laboratory. [Typical contact hours: lecture 26.25, laboratory 87.5] Prerequisite Skills: Before entering the course the student should be able to: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. recognize unsafe working conditions and practices; use common automotive shop equipment safely; identify and recognize common automotive tools and equipment; identify fasteners; demonstrate proper procedures to repair a broken fastener and/or repair threads; discuss automotive engine fundamentals; perform engine vacuum tests; perform cylinder compression tests; perform cylinder leakage tests; perform oil pressure tests; perform oil and filter change; assess and use service information; demonstrate proper use of metric and standard micrometers; demonstrate proper use of an analog or digital volt/ohmmeter; select the appropriate automotive fluid for the selected application; use appropriate methods for hazardous waste handling and disposal; discuss potential areas of employment in the automotive industry. Expected Outcomes for Students Upon completion of the course the student should be able to: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. identify and interpret brake system concern, and determine necessary action; diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law); measure brake pedal height, and determine necessary action; check master cylinder for internal and external leaks and proper operation, remove, bench bleed, and reinstall master cylinder; diagnose poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system, and determine necessary action; inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging or wear; tighten loose fittings and supports, and determine necessary action; select, handle, store, and fill brake fluids to proper level; flush and bleed brake hydraulic system; diagnose poor stopping, noise, pulling, grabbing, dragging or pedal pulsation concerns, and determine necessary action; remove, clean, inspect, measure and refinish brake drums, and rotors; remove, clean, and inspect brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble; Chabot College Course Outline for 65, Page 2 Fall 2010 12. pre-adjust brake shoes and parking brake before installing brake drums or drum/hub assemblies and wheel bearings; 13. check parking brake operation including cables and components for wear, rusting, binding, and corrosion; clean, lubricate, or replace as needed; 14. remove caliper assembly from mountings; clean and inspect for leaks and damage to caliper housing, related hardware and determine necessary action; 15. clean and inspect caliper mounting and slides for wear and damage, and determine necessary action; 16. remove, clean, and inspect pads, reassemble, lubricate, and reinstall caliper, pads, and inspect for leaks; 17. diagnose wheel bearing noises, diagnose wheel shimmy, and vibration concerns, and determine necessary action; 18. remove, clean, inspect, repack, and install wheel bearings and races, replace seals; install hub and adjust wheel bearings; 19. inspect and replace wheel studs, install wheel, torque lug nuts, and make final checks and adjustments; 20. check operation of brake stop light system, and determine necessary action; 21. identify and inspect antilock brake system (ABS) components, and determine necessary action; 22. diagnose antilock brake system (ABS) electronic control(s) and components using selfdiagnosis and/or recommended test equipment, and determine necessary action; 23. bleed the antilock brake system’s (ABS) front and rear hydraulic circuits; 24. test, diagnose and service ABS speed sensors, toothed ring (tone wheel), and circuits using a graphing multimeter (GMM)/digital storage oscilloscope (DSO). Course Content (Lecture): 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. Automotive safety and shop practices Proper care and manipulation of basic hand and specialty tools Braking system components and performance standards Braking system principles Brake linings and pads Brake fluid and lines Hydraulic principles and master cylinders Hydraulic valves and switches Brake bleeding methods and procedures Wheel bearings and service Drum brakes Drum brake diagnosis and service Disc brakes Disc brake diagnosis and service Parking brake operation, diagnosis, and service Machining brake drums and rotors Power brake unit operation, diagnosis, and service Brake system electrical fundamentals ABS components and operation Antilock brake systems ABS diagnosis and service Hazardous waste handling Chabot College Course Outline for 65, Page 3 Fall 2010 Course Content (Laboratory): Each of the lecture content items is accompanied by a required NATEF (National Automotive Technical Education Foundation) lab “task sheet” with required levels of exposure (general knowledge, demonstration, basic skill level, advanced skill level. Examples include: 1. Explain and identify major brake components and area requiring inspection 2. Perform disc maintenance to manufacturer’s standards 3. Identify all components of an ABS system 4. Diagnose ABS faults and make appropriate repairs Methods of Presentation: 1. 2. 3. 4. Lecture/discussion Laboratory Guest speakers Field trips Assignments and Methods of Evaluating Student Progress: 1. Typical Assignments a. Read chapter titled “Drum Brake Operation, Diagnosis, and Service” b. Complete worksheet Drum Brake Inspection 2. Methods of Evaluating Student Progress a. Class participation b. Performance of laboratory task lists and projects c. Homework assignments d. Quizzes e. Midterm exam f. Final exam Textbook(s) (Typical): Automotive Brake Systems, Halderman, Prentice Hall, 2008. Special Student Materials: 1. Safety glasses 2. Shop/safety clothing JGB Atec 65 course outline Revised: Sept2009