AURTTF005 - Diagnose and repair engine forced-induction systems
Assessor Resource
AURTTF005 Diagnose and repair engine forced-induction systems
Assessment tool
Version 1.0 Issue Date: May 2024
This unit describes the performance outcomes required to diagnose and repair faults in engine forced-induction systems. 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. Forced-induction systems include those in agricultural machinery, heavy commercial vehicles, light vehicles, marine vessels, mobile plant machinery, motorcycles or outdoor power equipment.
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 a forced-induction 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 a forced-induction system
2.1 Diagnostic tests are carried out according to workplace procedures and safety 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 a forced-induction 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, workplace procedures and safety 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 system or 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 turbocharger fault in an engine forced-induction system
diagnose and repair a fault in two of the following components of engine forced-induction systems:
variable turbocharger
compound turbocharger
waste-gate actuator
intercooler
supercharger.
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 engine forced-induction systems, including procedures for working with high temperature exhaust and intake system components
operating principles of engine forced-induction systems and associated components, including volumetric efficiency
application, purpose and operation of engine forced-induction systems and components, including:
turbochargers, including:
twin scroll
twin turbocharger
turbo compounding
variable geometry turbocharger
waste-gate operation
lubrication and cooling
intercooler operation, including air to air and water to air
supercharger operation
diagnostic testing procedures for engine forced-induction systems, including:
intake manifold pressure and vacuum testing
intake and exhaust system leak testing
turbo boost air pressure
intercooler pressure and temperature checks, types include air to air and air to water
oil supply
oil return to sump
turbocharger waste-gate testing
visual inspection for oil leakage
turbine rotating assembly end float and axial movement
repair procedures for engine forced-induction systems, including procedures for:
removing and replacing turbochargers
testing, removing, replacing and adjusting waste-gates
post-repair testing procedures for engine forced-induction systems.
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 engine forced-induction 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 engine forced-induction system specifications
one vehicle or machinery with engine forced-induction systems and a fault in turbocharger
diagnostic equipment for engine forced-induction systems, including dial indicator, vacuum and pressure gauges, and temperature gauges
tools, equipment and materials appropriate for repairing engine forced-induction 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 a forced-induction 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 a forced-induction system
2.1 Diagnostic tests are carried out according to workplace procedures and safety 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 a forced-induction 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, workplace procedures and safety 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 system or 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.
Diagnostic testsmust include:
assessing oil supply and return system
assessing intake and exhaust system for leaks and blockages
assessing turbocharger cooling system
testing turbocharger boost air pressure.
Safety requirements must include:
work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working with high temperature exhaust and intake system components.
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 turbocharger fault in an engine forced-induction system
diagnose and repair a fault in two of the following components of engine forced-induction systems:
variable turbocharger
compound turbocharger
waste-gate actuator
intercooler
supercharger.
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 engine forced-induction systems, including procedures for working with high temperature exhaust and intake system components
operating principles of engine forced-induction systems and associated components, including volumetric efficiency
application, purpose and operation of engine forced-induction systems and components, including:
turbochargers, including:
twin scroll
twin turbocharger
turbo compounding
variable geometry turbocharger
waste-gate operation
lubrication and cooling
intercooler operation, including air to air and water to air
supercharger operation
diagnostic testing procedures for engine forced-induction systems, including:
intake manifold pressure and vacuum testing
intake and exhaust system leak testing
turbo boost air pressure
intercooler pressure and temperature checks, types include air to air and air to water
oil supply
oil return to sump
turbocharger waste-gate testing
visual inspection for oil leakage
turbine rotating assembly end float and axial movement
repair procedures for engine forced-induction systems, including procedures for:
removing and replacing turbochargers
testing, removing, replacing and adjusting waste-gates
post-repair testing procedures for engine forced-induction systems.
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 engine forced-induction 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 engine forced-induction system specifications
one vehicle or machinery with engine forced-induction systems and a fault in turbocharger
diagnostic equipment for engine forced-induction systems, including dial indicator, vacuum and pressure gauges, and temperature gauges
tools, equipment and materials appropriate for repairing engine forced-induction 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 carried out according to workplace procedures and safety 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, workplace procedures and safety 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 system or 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 carried out according to workplace procedures and safety 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, workplace procedures and safety 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 system or 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
AURTTF005 - Diagnose and repair engine forced-induction 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
Feedback to student
Assessor name:
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Date:
Assessment Record Sheet
AURTTF005 - Diagnose and repair engine forced-induction systems
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
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Feedback to student:
Overall assessment result: Competent Not yet competent