TAS134

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Brakes II for Automotive

Applied TechnologiesTechnical Education

Name

Determine necessary brake system correction

Objective

Complete work order to include customer information vehicle identifying information customer concern related service history cause and correction', Identify and interpret brake system concern determine necessary action', Research applicable vehicle and service information such as brake system operation vehicle service history service precautions and technical service bulletins', Locate and interpret vehicle and major component identification numbers

Name

Conduct system pressure tests utilizing service specifications

Objective

Diagnose pressure concerns in the brake system using hydraulic principles Paschals Law', Measure brake pedal height travel and free play as applicable determine necessary action', Check master cylinder for internalexternal leaks and proper operation determine necessary action', Remove bench bleed and reinstall master cylinder', Diagnose poor stopping pulling or dragging concerns caused by malfunctions in the hydraulic system determine necessary action', Inspect brake lines flexible hoses and fittings for leaks dents kinks rust cracks bulging or wear tighten loose fittings and supports determine necessary action', Replace brake lines hoses fittings and supports', Fabricate brake lines using proper material and flaring procedures double flare and ISO types', Select handle store and fill brake fluids to proper level', Inspect test andor replace metering holdoff proportioning balance pressure differential and combination valves', Inspect test andor replace components of brake warning light system', Bleed andor flush brake system', Test brake fluid for contamination

Name

Perform diagnosis and correction for poor stopping, pulling or dragging concerns caused by malfunctions in the hydraulic system

Objective

Measure brake pedal height travel and free play as applicable determine necessary action', Check master cylinder for internalexternal leaks and proper operation determine necessary action', Remove bench bleed and reinstall master cylinder', Diagnose poor stopping pulling or dragging concerns caused by malfunctions in the hydraulic system determine necessary action', Inspect brake lines flexible hoses and fittings for leaks dents kinks rust cracks bulging or wear tighten loose fittings and supports determine necessary action', Replace brake lines hoses fittings and supports', Fabricate brake lines using proper material and flaring procedures double flare and ISO types', Select handle store and fill brake fluids to proper level', Inspect test andor replace metering holdoff proportioning balance pressure differential and combination valves', Inspect test andor replace components of brake warning light system

Name

Conduct inspection, fabrication and/or replacement of brake lines and hoses

Objective

Inspect brake lines flexible hoses and fittings for leaks dents kinks rust cracks bulging or wear tighten loose fittings and supports determine necessary action', Replace brake lines hoses fittings and supports', Fabricate brake lines using proper material and flaring procedures double flare and ISO types', Select handle store and fill brake fluids to proper level

Name

Diagnose poor stopping noise vibration, pulling, grabbing, dragging or pedal pulsation concerns

Objective

Diagnose poor stopping noise vibration pulling grabbing dragging or pedal pulsation concerns determine necessary action

Name

Perform service specifications pertaining to the removal, cleaning and refinishing procedures on break drums

Objective

Remove clean inspect and measure brake drums determine necessary action', Refinish brake drum measure final drum diameter

Name

Perform drum brake repair and replacement procedures

Objective

Remove clean and inspect brake shoes springs pins clips levers adjustersselfadjusters other related brake hardware and backing support plates lubricate and reassemble', Inspect and install wheel cylinders', Preadjust brake shoes and parking brake install brake drums or drumhub assemblies and wheel bearings', Install wheel torque lug nuts and make final checks and adjustments

Name

Diagnose poor stopping noise vibration, pulling, grabbing, dragging or pedal pulsation concerns

Objective

Diagnose poor stopping noise pulling grabbing dragging or pulsation concerns determine necessary action', Remove caliper assembly inspect for leaks and damage to caliper housing determine necessary action', Clean and inspect caliper mounting and slidespins for operation wear and damage determine necessary action

Name

Perform disc brake repair and replacement procedures

Objective

Remove inspect and replace pads and retaining hardware determine necessary action', Disassemble and clean caliper assembly inspect parts for wear rust scoring and damage replace seal boot and damaged or worn parts', Reassemble lubricate and reinstall caliper pads and related hardware seat pads and inspect for leaks', Clean inspect and measure rotor thickness lateral runout and thickness variation determine necessary action', Remove and reinstall rotor', Check brake pad wear indicator system operation determine necessary action

Name

Machine rotor according to service specifications

Objective

Refinish rotor on vehicle measure final rotor thickness', Refinish rotor off vehicle measure final rotor thickness

Name

Perform caliper piston retraction where applicable

Objective

Retract caliper piston on an integrated parking brake system

Name

Inspect and test power assist systems

Objective

Test pedal free travel check power assist operation', Check vacuum supply to vacuumtype power booster', Inspect the vacuumtype power booster unit for leaks inspect the check valve for proper operation determine necessary action', Inspect and test hydraulically assisted power brake system for leaks and proper operation determine necessary action

Name

Determine necessary action on wheel bearing noise, wheel shimmy and vibration concern diagnoses

Objective

Diagnose wheel bearing noises wheel shimmy and vibration concerns determine necessary action

Name

Perform the removal, inspection and replacement of bearing and hub assemblies

Objective

Remove clean inspect repack and install wheel bearings and 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 and indicator light system operation determine necessary action', Check operation of brake stop light system determine necessary action', Replace wheel bearing and race', Inspect and replace wheel studs', Remove and reinstall sealed wheel bearing assembly