AURLTF002 - Diagnose and repair light vehicle diesel fuel injection systems
Assessor Resource
AURLTF002 Diagnose and repair light vehicle diesel fuel injection systems
Assessment tool
Version 1.0 Issue Date: April 2024
This unit describes the performance outcomes required to diagnose and repair faults in the mechanically controlled diesel fuel injection systems of 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 diesel fuel injection systems include those in agricultural machinery, heavy commercial vehicles, light vehicles, marine vessels, mobile plant or outdoor power equipment. This unit does not apply to electronic compression ignition engine management systems.
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 diesel fuel injection 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 diesel fuel injection system
2.1 Engine tune adjustments are checked and rectified as required according to manufacturer specifications, workplace procedures, and safety and environmental requirements
2.2 Fuel system diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
2.3 Faulty components are identified from diagnostic test results and causes of faults are determined
2.4 Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
3. Repair diesel fuel injection 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 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 two different light vehicles with diesel engines, in which the work must involve:
removing, refitting and timing a diesel high pressure pump
removing, refitting and testing injectors
bleeding a diesel fuel injection system
removing and refitting a low pressure fuel pump.
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 diesel fuel injection systems, including procedures for working with high pressure fuel systems
environmental requirements, including procedures for trapping, storing and disposing of fluids released from fuel injection systems
operating principles of diesel fuel injection systems and associated components, including:
phases of combustion
composition of diesel fuel, including cetane and sulphur content
application, purpose and operation of diesel fuel injection systems and components, including:
high pressure injection pump systems
distributor pumps, including axial and radial types
in-line injection pump systems
mechanically controlled unit type systems
testing procedures for diesel fuel injection systems, including procedures for:
assessing exhaust smoke
testing low fuel pressure pump
testing injector opening pressure and spray pattern
testing injector for back leakage and nozzle leakage
assessing and testing air induction system
assessing and testing engine performance
repair procedures for diesel fuel injection systems, including procedures for:
dismantling, cleaning, adjusting and reassembling conventional and two-spring injectors
removing, installing and timing high pressure injection pumps
bleeding fuel systems
post-repair testing procedures for diesel fuel injection systems, including assessing:
system leakage
engine performance.
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 diesel fuel injection 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
two different light vehicles with diesel engines with faults
diagnostic equipment for diesel fuel injection systems
tools, equipment and materials appropriate for repairing diesel fuel injection 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 diesel fuel injection 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 diesel fuel injection system
2.1 Engine tune adjustments are checked and rectified as required according to manufacturer specifications, workplace procedures, and safety and environmental requirements
2.2 Fuel system diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
2.3 Faulty components are identified from diagnostic test results and causes of faults are determined
2.4 Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
3. Repair diesel fuel injection 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 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.
Safety and environmental requirements must include:
work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working with high pressure diesel fuel systems
environmental requirements, including procedures for trapping, storing and disposing of fluids released from fuel injection 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 two different light vehicles with diesel engines, in which the work must involve:
removing, refitting and timing a diesel high pressure pump
removing, refitting and testing injectors
bleeding a diesel fuel injection system
removing and refitting a low pressure fuel pump.
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 diesel fuel injection systems, including procedures for working with high pressure fuel systems
environmental requirements, including procedures for trapping, storing and disposing of fluids released from fuel injection systems
operating principles of diesel fuel injection systems and associated components, including:
phases of combustion
composition of diesel fuel, including cetane and sulphur content
application, purpose and operation of diesel fuel injection systems and components, including:
high pressure injection pump systems
distributor pumps, including axial and radial types
in-line injection pump systems
mechanically controlled unit type systems
testing procedures for diesel fuel injection systems, including procedures for:
assessing exhaust smoke
testing low fuel pressure pump
testing injector opening pressure and spray pattern
testing injector for back leakage and nozzle leakage
assessing and testing air induction system
assessing and testing engine performance
repair procedures for diesel fuel injection systems, including procedures for:
dismantling, cleaning, adjusting and reassembling conventional and two-spring injectors
removing, installing and timing high pressure injection pumps
bleeding fuel systems
post-repair testing procedures for diesel fuel injection systems, including assessing:
system leakage
engine performance.
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 diesel fuel injection 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
two different light vehicles with diesel engines with faults
diagnostic equipment for diesel fuel injection systems
tools, equipment and materials appropriate for repairing diesel fuel injection 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
Engine tune adjustments are checked and rectified as required according to manufacturer specifications, workplace procedures, and safety and environmental requirements
Fuel system diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
Faulty components are identified from diagnostic test results and causes of faults are determined
Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
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 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
Engine tune adjustments are checked and rectified as required according to manufacturer specifications, workplace procedures, and safety and environmental requirements
Fuel system diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
Faulty components are identified from diagnostic test results and causes of faults are determined
Diagnosis findings and recommendations for necessary repairs or adjustments are reported according to workplace procedures
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 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
AURLTF002 - Diagnose and repair light vehicle diesel fuel injection systems
Assessment task 1: [title]
Student name:
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I declare that the assessment tasks submitted for this unit are my own work.
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Result: Competent Not yet competent
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Assessor name:
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Assessment Record Sheet
AURLTF002 - Diagnose and repair light vehicle diesel fuel injection 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