Assessor Resource

AURLTB003
Diagnose and repair light vehicle hydraulic braking systems

Assessment tool

Version 1.0
Issue Date: April 2024


This unit describes the performance outcomes required to diagnose and repair faults in the hydraulic braking systems of light vehicles. It involves preparing for the task, selecting the correct diagnostic procedure, carrying out the diagnosis and the repair, performing post-repair testing, and completing workplace processes and documentation.

It applies to those working in the automotive service and repair industry. The hydraulic braking systems include those in light vehicles, light commercial vehicles or outdoor power equipment. This unit does not apply to agricultural machinery, heavy commercial vehicles, mobile plant machinery or motorcycles.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to diagnose and repair light vehicle hydraulic braking system

1.1 Job requirements are determined from workplace instructions

1.2 Diagnostic information is sourced and interpreted

1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected

1.4 Hazards associated with the work are identified and risks are managed

1.5 Diagnostic tools and equipment are selected and checked for serviceability

2. Diagnose braking system

2.1 Diagnostic tests are performed according to workplace procedures and safety and environmental requirements

2.2 Faults are identified from diagnostic test results and causes of faults are determined

2.3 Diagnosis findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments

3. Repair braking system

3.1 Repair information is sourced and interpreted

3.2 Repair options are analysed and those most appropriate to the circumstances are selected

3.3 Repair tools, equipment and materials are selected and checked

3.4 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, safety and environmental requirements, and without causing damage to components or system

3.5 Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified

4. Complete work processes

4.1 Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use

4.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

4.3 Tools and equipment are checked and stored according to workplace procedures

4.4 Workplace documentation is processed according to workplace procedures

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

diagnose and repair a fault in:

two different light vehicle four-wheel disc hydraulic braking systems, in which the work must involve removing and refitting or replacing the brake calipers, disc pads and disc rotors

one light vehicle drum braking system, in which the work must involve removing and refitting or replacing brake drums, brake shoes and wheel cylinders

one light vehicle brake master cylinder, in which the work must involve removing and refitting or replacing the brake master cylinder.

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing light vehicle hydraulic braking systems, including procedures for:

lifting and supporting light vehicles

handling and controlling brake dust and brake fluids

environmental requirements, including procedures for trapping, storing and disposing of brake dust and brake fluid released from hydraulic braking systems

operating principles of light vehicle hydraulic braking systems and associated components, including:

levers

friction

hydraulics, including the relationship between force, pressure and area

properties of brake fluids, including:

Department of Transportation (DOT) classification

synthetic and non-synthetic

compatibility of fluid types

application, purpose and operation of light vehicle hydraulic braking systems and components, including:

front and rear split systems

diagonal split systems

master cylinders, including:

tandem master cylinders

compensating-type master cylinders

centre-valve master cylinders

drum braking system and components, including:

self-energising or servo effect

leading and trailing shoe braking systems

duo-servo braking systems

two-leading shoe braking systems

wheel cylinders

manual and self-adjustment systems of drum braking systems

disc braking systems and components, including:

types of brake discs

disc pads

self-adjustment of disc pads

fixed, floating and dual-piston brake calipers

parking brake systems and components, including:

parking brake levers

drum parking brakes

disc parking brakes

electronic parking brake systems

braking system valves and switches, including:

pressure differential valves and switches

proportioning valves

load-sensing proportioning valves

drum brake check valves

fluid-level warning devices

vacuum operated brake boosting systems

diagnostic testing procedures for light vehicle hydraulic braking systems, including procedures for:

checking brake pedal

operational tests of brake booster

operational tests of master cylinder

testing brake fluid

operational tests of hand brake

operational tests of drum and disc brakes

measuring and evaluating brake drums, shoes, discs and pads

repair procedures for light vehicle hydraulic braking systems, including procedures for:

removing, replacing and adjusting hydraulic system components, including master cylinder, proportioning valves, switches, brake hoses and lines, disc calipers and wheel cylinders

removing, replacing and adjusting braking system components, including brake booster, master cylinder, hand brake lever and cables, brake shoes and drums, brake pads and brake discs

bleeding brakes, including anti-lock braking systems (ABS)

post-repair testing procedures for light vehicle hydraulic braking systems, including procedures for road testing and bedding in brakes.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the light vehicle hydraulic braking systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer braking system specifications

two different light vehicles with four-wheel hydraulic disc brake systems with faults

one light vehicle with a rear drum brake system

diagnostic equipment for light vehicle hydraulic braking systems

tools, equipment and materials appropriate for repairing light vehicle braking systems.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to diagnose and repair light vehicle hydraulic braking system

1.1 Job requirements are determined from workplace instructions

1.2 Diagnostic information is sourced and interpreted

1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected

1.4 Hazards associated with the work are identified and risks are managed

1.5 Diagnostic tools and equipment are selected and checked for serviceability

2. Diagnose braking system

2.1 Diagnostic tests are performed according to workplace procedures and safety and environmental requirements

2.2 Faults are identified from diagnostic test results and causes of faults are determined

2.3 Diagnosis findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments

3. Repair braking system

3.1 Repair information is sourced and interpreted

3.2 Repair options are analysed and those most appropriate to the circumstances are selected

3.3 Repair tools, equipment and materials are selected and checked

3.4 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, safety and environmental requirements, and without causing damage to components or system

3.5 Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified

4. Complete work processes

4.1 Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use

4.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

4.3 Tools and equipment are checked and stored according to workplace procedures

4.4 Workplace documentation is processed according to workplace procedures

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety and environmental requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for:

lifting and supporting light vehicles

handling and controlling brake dust and brake fluids

environmental requirements, including procedures for trapping, storing and disposing of brake dust and brake fluid released from hydraulic braking systems.

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

diagnose and repair a fault in:

two different light vehicle four-wheel disc hydraulic braking systems, in which the work must involve removing and refitting or replacing the brake calipers, disc pads and disc rotors

one light vehicle drum braking system, in which the work must involve removing and refitting or replacing brake drums, brake shoes and wheel cylinders

one light vehicle brake master cylinder, in which the work must involve removing and refitting or replacing the brake master cylinder.

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing light vehicle hydraulic braking systems, including procedures for:

lifting and supporting light vehicles

handling and controlling brake dust and brake fluids

environmental requirements, including procedures for trapping, storing and disposing of brake dust and brake fluid released from hydraulic braking systems

operating principles of light vehicle hydraulic braking systems and associated components, including:

levers

friction

hydraulics, including the relationship between force, pressure and area

properties of brake fluids, including:

Department of Transportation (DOT) classification

synthetic and non-synthetic

compatibility of fluid types

application, purpose and operation of light vehicle hydraulic braking systems and components, including:

front and rear split systems

diagonal split systems

master cylinders, including:

tandem master cylinders

compensating-type master cylinders

centre-valve master cylinders

drum braking system and components, including:

self-energising or servo effect

leading and trailing shoe braking systems

duo-servo braking systems

two-leading shoe braking systems

wheel cylinders

manual and self-adjustment systems of drum braking systems

disc braking systems and components, including:

types of brake discs

disc pads

self-adjustment of disc pads

fixed, floating and dual-piston brake calipers

parking brake systems and components, including:

parking brake levers

drum parking brakes

disc parking brakes

electronic parking brake systems

braking system valves and switches, including:

pressure differential valves and switches

proportioning valves

load-sensing proportioning valves

drum brake check valves

fluid-level warning devices

vacuum operated brake boosting systems

diagnostic testing procedures for light vehicle hydraulic braking systems, including procedures for:

checking brake pedal

operational tests of brake booster

operational tests of master cylinder

testing brake fluid

operational tests of hand brake

operational tests of drum and disc brakes

measuring and evaluating brake drums, shoes, discs and pads

repair procedures for light vehicle hydraulic braking systems, including procedures for:

removing, replacing and adjusting hydraulic system components, including master cylinder, proportioning valves, switches, brake hoses and lines, disc calipers and wheel cylinders

removing, replacing and adjusting braking system components, including brake booster, master cylinder, hand brake lever and cables, brake shoes and drums, brake pads and brake discs

bleeding brakes, including anti-lock braking systems (ABS)

post-repair testing procedures for light vehicle hydraulic braking systems, including procedures for road testing and bedding in brakes.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the light vehicle hydraulic braking systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer braking system specifications

two different light vehicles with four-wheel hydraulic disc brake systems with faults

one light vehicle with a rear drum brake system

diagnostic equipment for light vehicle hydraulic braking systems

tools, equipment and materials appropriate for repairing light vehicle braking systems.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Job requirements are determined from workplace instructions 
Diagnostic information is sourced and interpreted 
Diagnostic options are analysed and those most appropriate to the circumstances are selected 
Hazards associated with the work are identified and risks are managed 
Diagnostic tools and equipment are selected and checked for serviceability 
Diagnostic tests are performed according to workplace procedures and safety and environmental requirements 
Faults are identified from diagnostic test results and causes of faults are determined 
Diagnosis findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments 
Repair information is sourced and interpreted 
Repair options are analysed and those most appropriate to the circumstances are selected 
Repair tools, equipment and materials are selected and checked 
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, safety and environmental requirements, and without causing damage to components or system 
Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified 
Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Tools and equipment are checked and stored according to workplace procedures 
Workplace documentation is processed according to workplace procedures 
Job requirements are determined from workplace instructions 
Diagnostic information is sourced and interpreted 
Diagnostic options are analysed and those most appropriate to the circumstances are selected 
Hazards associated with the work are identified and risks are managed 
Diagnostic tools and equipment are selected and checked for serviceability 
Diagnostic tests are performed according to workplace procedures and safety and environmental requirements 
Faults are identified from diagnostic test results and causes of faults are determined 
Diagnosis findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments 
Repair information is sourced and interpreted 
Repair options are analysed and those most appropriate to the circumstances are selected 
Repair tools, equipment and materials are selected and checked 
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, safety and environmental requirements, and without causing damage to components or system 
Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified 
Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Tools and equipment are checked and stored according to workplace procedures 
Workplace documentation is processed according to workplace procedures 

Forms

Assessment Cover Sheet

AURLTB003 - Diagnose and repair light vehicle hydraulic braking systems
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

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Assessor name:

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Assessment Record Sheet

AURLTB003 - Diagnose and repair light vehicle hydraulic braking systems

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

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