Brakes


New Shop Procedure

1. Log-in and go to www.cte-auto.net
2. Check Aeries for assignments (Resources Tab)
3. Select and print out appropriate NATEF Task Sheet
4. Have work-group check with instructor as to vehicle assignment
5. Have shop foreman log your group into daily work log
6. Shop Foreman will issue keys and tools needed for job
7. Procede to vehicle and complete assignment
8. Check tools, keys back in to shop foreman when job is complete
(minimum of 5 minutes prior to ending of period)
9. Have instructor review and sign task sheets

No changes to this procedure
without instructor approval!

 

NATEF A5 - Brake Curriculum

Course Syllabus

NATEF BRAKES Tasklist 2018 (PDF)
NATEF BRAKES Tasklist 2018 (Doc)

Download Adobe Reader

Download Power Point Viewer

Download VLC Media Player
 
All Students must complete Safety Module on Intro page
before proceeding beyond this point - Click Here
 
Brake Videos  
Brake Types View
Brake Pedal Operation View
Disc Brake Operation View
Disc/Rotor View
Replace Disc/Rotor View
Brake Pads View
Disc Brake Calipers View
Drum Brake Operation View
Drum Brake Linings View
Wheel Cylinders View
Master Cylinder View
Brake Force View
Brake Fluid View
Brake Lines View
Brake Bleeding View
Wheel Speed Sensors View
Ammco 4000E Brake Lathe Features View
 
Brake System Theory  

Chapter 80 - Brake System Technology

 PPT
Worksheet
Quiz
 
Chapter 81 - Brake System Diagnosis, Service, and Repair PPT
Worksheet
Quiz1 Quiz2
 
Chapter 82 - Anti-Lock Brakes, Traction Control, and Stability Control PPT
Worksheet
Quiz
 
Brake System Measuring Tools  
Chapter 6 - Automotive Measurement and Math PPT
Worksheet
Using a Micrometer Math-in-CTE Worksheet
How to Read a Micrometer
Flash
Micrometer Practice
Using a Vernier Caliper JPG
Using a Dial Indicator

PPT
Video
Using a Drum Micrometer PDF
 
Brake Labs
General Brake Systems Diagnosis

NATEF A5A.1 - Complete work order to include customer concern, cause, and correction

 PPT
View
NATEF A5A.2 - Identify and interpret brake system concern; determine necessary action
NATEF A5A.3,4 - Research applicable vehicle and service information View
 
Disc Brake Inspection
Brake Measurement Conversions Math-in-CTE II
NATEF A5B.3,A5B6 D.1,2,4,7- Disc Brake Inspection B1 View & Print
PPT
 
Brake Labs
Hydraulic System Diagnosis and Repair
NATEF A5B.1 - Diagnose pressure concerns in the brake system using hydraulic principles (Pascal’s Law)  
NATEF A5B.2 - Measure brake pedal height; determine necessary action View & Print
Video
NATEF A5B.3 - Check master cylinder for internal and external leaks and proper operation; determine necessary action View
Video
NATEF A5B.6 - Inspect brake lines, flexible hoses, and fittings View
Video
NATEF A5B.8 - Select, handle, store, and fill brake fluid to proper level
NATEF A5B.13 - Test brake fluid for contamination		 View & Print Task
Video
Directions
NATEF A5B.11 - Inspect, test, and/or replace components of brake light system View
NATEF A5B.12A - Bleed brakes-Flush system
 View
Video
NATEF A5B.12B - Vacuum Bleed brakes-Flush system View
NATEF A5B.12C - Pressure Bleed brakes-Flush system View
NATEF A5B.4A - Remove, bench bleed, and reinstall master cylinder View
NATEF A5B.4B - Dissassemble-reassemble master cylinder View
 
Brake Labs
Disc Brake Diagnosis and Repair
NATEF A5D.1 - Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging or pedal pulsation concerns Evaluate Brake Pads Task
View
NATEF A5D.2 - Remove caliper assembly from mountings; clean and inspect for leaks and damage to caliper housing

View
Includes A5D6

Video

Video
NATEF A5D.3 - Clean and inspect caliper mounting and slides for wear and damage; determine necessary action
NATEF A5D.4 - Remove, clean, and inspect pads and retaining hardware
NATEF A5D.5 - Disassemble and clean caliper assembly View
NATEF A5D.6 - Reassemble, lubricate, and reinstall caliper, pads, and related hardware; seat pads, and inspect for leaks View
Included Above
NATEF A5D.8 - Remove and reinstall rotor

View
Video
NATEF A5D.7 - Clean, inspect, and measure rotor with a dial indicator and a micrometer View
NATEF A5D.10 - Refinish rotor off vehicle

View
Video
NATEF A5D.9 - Refinish rotor on vehicle View
Ammco On-the-Vehicle Brake Lathe Intro Video Video
Step 1 Video Video
Step 2 Video Video
Step 3 Video Video
Ammco On-the-Vehicle Brake Lathe Manual PDF
Manual
 
Brake Labs
Drum Brake Diagnosis and Repair
NATEF A5C.1 - Diagnose poor stopping, noise, pulling, grabbing, dragging or pedal pulsation concerns; determine necessary action. P-1

Video
Video
NATEF A5C.2 - Remove, clean (using proper safety procedures), inspect, and measure brake drums; determine necessary action. P-1
 View
Includes A5C6
NATEF A5C.3 - Refinish brake drum. P-1 PDF
View
Video
NATEF A5C.4 - Remove, clean, and inspect brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble. P-1 View
NATEF A5C.5 - Remove, inspect, and install wheel cylinders. P-2 View
Video
NATEF A5C.6 - Pre-adjust brake shoes and parking brake before installing brake drums or drum/hub assemblies and wheel bearings. P-1
 View
Includes A5C2
NATEF A5C.7 - Install wheel, torque lug nuts, and make final checks and adjustments. P-1 View
 
Brake Labs
Power Assist Units Diagnosis and Repair
NATEF A5E.1 - Test pedal free travel; check power assist operation. P-2  
NATEF A5E.2 - Check vacuum supply to vacuum-type power booster. P-1 View
Includes A5E3
NATEF A5E.3 - Inspect the vacuum-type power booster unit for leaks; inspect the check valve for proper operation; determine necessary action. P-1 View
Includes A5E2
NATEF A5E.4 - Inspect and test hydraulically assisted power brake system for leaks and proper operation; determine necessary action. P-3  
NATEF A5E.5 - Measure and adjust master cylinder pushrod length. P-3  
 
Brake Labs
Miscellaneous
(Wheel Bearings, Parking Brakes, Electrical)
Diagnosis and Repair
NATEF A5F.1 - Diagnose wheel bearing noises, wheel shimmy, and vibration concerns; determine necessary action. P-1  
NATEF A5F.2 - Remove, clean, inspect, repack, and install wheel bearings and replace seals; install hub and adjust bearings. P-1 View
NATEF A5F.3 - Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed. P-2  
NATEF A5F.4 - Check parking brake and indicator light system operation; determine necessary action. P-1  
NATEF A5F.5 - Check operation of brake stop light system; determine necessary action. P-1 View
NATEF A5F.6 - Replace wheel bearing and race. P-2  
NATEF A5F.7 - Inspect and replace wheel studs. P-1 View
NATEF A5F.8 - Remove and reinstall sealed wheel bearing assembly. P-1 View
 
Brake Labs  
Electronic Brake, Traction and
Stability Control Systems Diagnosis and Repair
NATEF A5G.1 - Identify and inspect electronic brake control system components; determine necessary action. P-1  
NATEF A5G.2 - Diagnose poor stopping, wheel lock-up, abnormal pedal feel, unwanted application, and noise concerns associated with the electronic brake control system ; determine necessary action. P-2  
NATEF A5G.3 - Diagnose electronic brake control system electronic control(s) and components by retrieving diagnostic trouble codes, and/or using recommended test equipment; determine necessary action. P-1

View

Video
NATEF A5G.4 - Depressurize high-pressure components of the electronic brake control system. P-3  
NATEF A5G.5 - Bleed the electronic brake control system hydraulic circuits. P-1  
NATEF A5G.6 - Remove and install electronic brake control system electrical/electronic and hydraulic components.
P-3		  
NATEF A5G.7 - Test, diagnose, and service electronic brake control system speed sensors (digital and analog), toothed ring (tone wheel), and circuits using a graphing multimeter (GMM)/digital storage oscilloscope (DSO) (includes output signal, resistance, shorts to voltage/ground, and frequency data). P-1  
NATEF A5G.8 - Diagnose electronic brake control system braking concerns caused by vehicle modifications (tire size, curb height, final drive ratio, etc.). P-3  
NATEF A5G.9 - Identify traction control/vehicle stability control system components. P-3  
NATEF A5G.10 - Describe the operation of a regenerative braking system.
P-3