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AUTO 105 - Brakes Level 1Credits: 2 Introduces inspection and maintenance of hydraulic, mechanical and electrical braking systems. Practices NATEF tasks to MLR (maintenance and light repair) level related to brake systems.
Prerequisite(s): None Corequisite(s): None Lecture Hours: 30 Lab Hours: 24 Meets MTA Requirement: None Pass/NoCredit: No
Outcomes and Objectives
- Complete general level 1 NATEF tasks for Brakes as listed below.
- Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.
- Describe procedure for performing a road test to check brake system operation, including an anti-lock brake system (ABS).
- Complete Hydraulic System related Level 1 NATEF tasks as listed below.
- Measure brake pedal height, travel, and free play (as applicable); determine necessary action.
- Check master cylinder for external leaks and proper operation.
- Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, wear, loose fittings and supports; determine necessary action.
- Select, handle, store, and fill brake fluids to proper level.
- Identify components of brake warning light system.
- Bleed and/or flush brake system.
- Test brake fluid for contamination.
- Complete Drum Brakes related Level 1 NATEF tasks as listed below.
- Remove, clean, inspect, and measure brake drum diameter; determine necessary action.
- Refinish brake drum and measure final drum diameter; compare with specifications.
- Remove, clean, and inspect brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble.
- Inspect wheel cylinders for leaks and proper operation; remove and replace as needed.
- Pre-adjust brake shoes and parking brake; install brake drums or drum/hub assemblies and wheel bearings; make final checks and adjustments.
- Install wheel and torque lug nuts.
- Complete Disc Brakes related Level 1 NATEF tasks as listed below.
- Remove and clean caliper assembly; inspect for leaks and damage/wear to caliper housing; determine necessary action.
- Clean and inspect caliper mounting and slides/pins for proper operation, wear, and damage; determine necessary action.
- Remove, inspect, and replace pads and retaining hardware; determine necessary action.
- Lubricate and reinstall caliper, pads, and related hardware; seat pads and inspect for leaks.
- Clean and inspect rotor, measure rotor thickness, thickness variation, and lateral runout; determine necessary action.
- Remove and reinstall rotor.
- Refinish rotor on vehicle; measure final rotor thickness and compare with specifications.
- Refinish rotor off vehicle; measure final rotor thickness and compare with specifications.
- Retract and re-adjust caliper piston on an integral parking brake system.
- Check brake pad wear indicator; determine necessary action.
- Describe importance of operating vehicle to burnish/break-in replacement brake pads according to manufacturer's recommendations.
- Complete Power-Assist Units related Level 1 NATEF tasks as listed below.
- Check brake pedal travel with, and without, engine running to verify proper power booster operation.
- Check vacuum supply (manifold or auxiliary pump) to vacuum-type power booster.
- Complete Miscellaneous Brakes related (Wheel Bearings, Parking Brakes, Electrical, Etc.) Level 1 NATEF tasks as listed below.
- Remove, clean, inspect, repack, and install wheel bearings; replace seals; install hub and adjust bearings.
- Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed.
- Check parking brake operation and parking brake indicator light system operation; determine necessary action.
- Check operation of brake stop light system.
- Replace wheel bearing and race.
- Complete Electronic Brakes, and Traction and Stability Control Systems related Level 1 NATEF tasks as listed below.
- Identify traction control/vehicle stability control system components.
- Describe the operation of a regenerative braking system.
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