Core Standards of the Course
Strand 1
Student will participate in personal and leadership development activities through SkillsUSA or another appropriate career and technical student organization.
Standard 1
Student will use communication skills to effectively communicate with others.
Standard 2
Student will effectively use teamwork to respectfully work with others.
Standard 3
Student will use critical thinking and problem-solving skills.
Standard 4
Student will be dependable, reliable, steady, trustworthy, and consistent in performance and behavior.
Standard 5
Student will be accountable for results.
Standard 6
Be familiar with the legal requirements and expectations of the course.
Strand 2
Student will participate in work-place readiness activities.
Standard 1
Student will demonstrate employability skills.
Standard 2
Student will participate in a work-based learning experience outside the classroom.
Strand 3
Students will understand general shop safety.
Standard 1
Learn safe working habits and procedures. Pass a safety test with 100 percent.
Standard 2
Review the different types and hazards of solvents used.
Standard 3
Review the different types, purposes, and hazards of automotive greases, oils, and additives.
Standard 4
Review precautions in the use, handling, and storage of various solvents, cleaners, oils, greases, and additives.
Standard 5
Review the gasses encountered in the diesel field and the hazards they present.
Standard 6
Review the hazards and control of asbestos dust.
Standard 7
Comply with safety rules for working with automotive chemicals (SDS).
Performance Skills
Pass safety test with 100%
Strand 4
Students will inspect the Brake Systems and determine needed repair.
Standard 1
Research vehicle service information, including fluid type, vehicle service history, service precautions, and technical service bulletins.
Standard 2
Identify brake system components and configurations (including air and hydraulic systems, parking brake, power assist, and vehicle dynamic brake systems).
Standard 3
Identify brake performance problems caused by the mechanical/foundation brake system (air and hydraulic).
Standard 4
Use appropriate electronic service tool(s) and procedures to diagnose problems; check, record, and clear diagnostic codes; interpret digital multimeter (DMM) readings.
Strand 5
Students will inspect the Air Brakes: Air Supply and Service Systems and determine needed repair.
Standard 1
Inspect, test, repair, and/or replace air supply system components such as compressor, governor, air drier, tanks, and lines; inspect service system components such as lines, fittings, mountings, and valves (hand brake/ trailer control, brake relay, quick release, tractor protection, emergency/spring brake control/modulator, pressure relief/safety); determine needed action.
Standard 2
Test gauge operation and readings; test low pressure warning alarm operation; perform air supply system tests such as pressure build-up, governor settings, and leakage; drain air tanks and check for contamination; determine needed action.
Standard 3
Demonstrate knowledge and understanding of air supply and service system components and operations.
Standard 4
Inspect air compressor drive gear components (gears, belts, tensioners, and/or couplings); determine needed action.
Standard 5
Inspect air compressor inlet; inspect oil supply and coolant lines, fittings, and mounting brackets; repair or replace as needed.
Standard 6
Inspect and test air tank relief (safety) valves, one-way (single) check valves, two-way (double) check valves, manual and automatic drain valves; determine needed action.
Standard 7
Inspect and clean air drier systems, filters, valves, heaters, wiring, and connectors; determine needed action.
Standard 8
Inspect and test brake application (foot/treadle) valve, fittings, and mounts; check pedal operation; determine needed action.
Strand 6
Students will Inspect the Air Brakes: Mechanical/Foundation Brake System and determine needed repair.
Standard 1
Inspect, test, repair, and/or replace service brake chambers, diaphragms, clamps, springs, pushrods, clevises, and mounting brackets; determine needed action.
Standard 2
Identify slack adjuster type; inspect slack adjusters; perform needed action.
Standard 3
Check camshafts (S-cam), tubes, rollers, bushings, seals, spacers, retainers, brake spiders, shields, anchor pins, and springs; perform needed action.
Standard 4
Inspect rotor and mounting surface; measure rotor thickness, thickness variation, and lateral runout; determine needed action.
Standard 5
Inspect, clean, and adjust air disc brake caliper assemblies; inspect and measure disc brake pads; inspect mounting hardware; perform needed action.
Standard 6
Remove brake drum; clean and inspect brake drum and mounting surface; measure brake drum diameter; measure brake lining thickness; inspect brake lining condition; determine needed action.
Standard 7
Diagnose concerns related to the mechanical/foundation brake system including poor stopping, brake noise, premature wear, pulling, grabbing, or dragging; determine needed action.
Strand 7
Students will Inspect the Air Brakes: Parking Brake System and determine needed repair.
Standard 1
Inspect, test, and/or replace parking (spring) brake chamber.
Standard 2
Inspect, test, and/or replace parking (spring) brake check valves, lines, hoses, and fittings.
Standard 3
Inspect, test, and/or replace parking (spring) brake application and release valve.
Standard 4
Manually release (cage) and reset (uncage) parking (spring) brakes.
Standard 5
Identify and test anti-compounding brake function; determine needed action.
Strand 8
Students will Inspect the Hydraulic Brakes: Hydraulic System and determine needed repair.
Standard 1
Check master cylinder fluid level and condition; determine proper fluid type for application.
Standard 2
Inspect hydraulic brake system for leaks and damage; test, repair, and/or replace hydraulic brake system components.
Standard 3
Check hydraulic brake system operation including pedal travel, pedal effort, and pedal feel; determine needed action.
Standard 4
Diagnose poor stopping, premature wear, pulling, dragging, imbalance, or poor pedal feel caused by problems in the hydraulic system; determine needed action.
Standard 5
Test master cylinder for internal/external leaks and damage; replace as needed.
Standard 6
Test metering (hold-off), load sensing/proportioning, proportioning, and combination valves; determine needed action.
Standard 7
Test brake pressure differential valve; test warning light circuit switch, bulbs/LEDs, wiring, and connectors; determine needed action.
Standard 8
Bleed and/or flush hydraulic brake system.
Strand 9
Students will Inspect the Hydraulic Brakes: Mechanical/Foundation Brake System and determine needed repair.
Standard 1
Clean and inspect rotor and mounting surface; measure rotor thickness, thickness variation, and lateral runout; determine necessary action.
Standard 2
Inspect and clean disc brake caliper assemblies; inspect and measure disc brake pads; inspect mounting hardware; perform needed action.
Standard 3
Remove, clean and inspect brake drums; measure brake drum diameter; measure brake lining thickness; inspect brake lining condition; inspect wheel cylinders; determine serviceability.
Standard 4
Check disc brake caliper assembly mountings and slides; replace as needed.
Strand 10
Students will Inspect the Hydraulic Brakes: Parking Brake System and determine needed repair.
Standard 1
Check parking brake operation; inspect parking brake application and holding devices; adjust, repair, and/or replace as needed.
Performance Skills
Check parking brake operation.
Strand 11
Students will Inspect the Power Assist Systems and determine needed repair.
Standard 1
Check brake assist/booster system (vacuum or hydraulic) hoses and control valves; check fluid level and condition (if applicable).
Standard 2
Check operation of emergency (back-up/reserve) brake assist system.
Standard 3
Identify concerns related to the power assist system (vacuum or hydraulic), including stopping problems caused by the brake assist (booster) system; determine needed action.
Standard 4
Inspect, test, repair, and/or replace hydraulic brake assist/booster systems, hoses, and control valves.
Strand 12
Students will Inspect the Vehicle Dynamic Brake Systems (Air and Hydraulic): Antilock Brake System (ABS), Automatic Traction Control (ATC) System, and Electronic Stability Control (ESC) System and determine needed repair.
Standard 1
Observe antilock brake system (ABS) warning light operation including trailer and dash mounted trailer ABS warning light; determine needed action.
Standard 2
Observe automatic traction control (ATC) and electronic stability control (ETC) warning light operation; determine needed action.
Standard 3
Identify stopping concerns related to the vehicle dynamic brake systems: ABS, ATC, and ESC; determine needed action.
Standard 4
Diagnose problems in the vehicle dynamic brake control systems; determine needed action.
Standard 5
Check and test operation of vehicle dynamic brake system (air and hydraulic) mechanical and electrical components; determine needed action
Standard 6
Test vehicle/wheel speed sensors and circuits; adjust, repair, and/or replace as needed.
Standard 7
Bleed ABS hydraulic circuits.
Standard 8
Verify power line carrier (PLC) operation.
Strand 13
Students will Inspect the Wheel Bearings and determine needed repair.
Standard 1
Clean, inspect, lubricate, and/or replace wheel bearings and races/cups; replace seals and wear rings; inspect spindle/tube; inspect and replace retaining hardware; adjust wheel bearings; check hub assembly fluid level and condition; verify end play with dial indicator method.
Standard 2
Identify, inspect, and/or replace unitized/preset hub bearing assemblies