AURHTE002 - Diagnose and repair heavy vehicle compression ignition engines
Assessor Resource
AURHTE002 Diagnose and repair heavy vehicle compression ignition engines
Assessment tool
Version 1.0 Issue Date: April 2024
This unit describes the performance outcomes required to diagnose and repair faults in heavy vehicle compression ignition engines. 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 compression ignition engines include those in agricultural machinery, heavy commercial vehicles, mobile plant machinery or marine vessels.
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 heavy vehicle compression ignition engine
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 engine
2.1 Diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and environmental and safety requirements
2.2 Faults are identified from diagnostic test results and causes of faults are determined
2.3 Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
3. Repair engine
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 according to manufacturer procedures
3.4 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
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 engine 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 fault in two different heavy vehicle compression ignition engines, including diagnosing and repairing a fault in:
an engine cylinder head, which must include removing the cylinder head from the engine
an engine bottom end, which must include removing the crankshaft, pistons and connecting rods from the engine
dismantle and reassemble one of the above compression ignition engines, ensuring that engine is running at the end of the repair.
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 heavy vehicle compression ignition engines, including procedures for:
isolating and stabilising heavy vehicles or machines
lifting and supporting heavy vehicle compression ignition engines
working with compression ignition engines
environmental requirements, including procedures for trapping, storing and disposing of oil and fluid released from compression ignition engines
operating principles of heavy vehicle compression ignition engines and associated components, including:
combustion, including:
combustion cycle
swept volume and engine volume
compression ratio
valve timing
engine efficiency, including volumetric efficiency, thermal efficiency and mechanical efficiency
torque and horsepower, including brake horsepower
application, purpose and operation of heavy vehicle compression ignition engines and components, including:
diagnostic testing procedures for heavy vehicle compression ignition engines, including:
engine compression tests
cylinder leakage tests
oil pressure tests
source of fluid leak diagnosis
exhaust smoke diagnosis
abnormal engine noise diagnosis
dismantling, inspection and reassembly procedures for heavy vehicle compression ignition engines, including procedures for:
measuring clearances and tolerances, including:
crankshaft and camshaft bearings and journals
main bearing and connecting rod tunnels
cylinder bores and pistons
liner depths and protrusions
cylinder heads
inspecting components
repair procedures for heavy vehicle compression ignition engines, including procedures for removing and refitting the:
cylinder head
piston and connecting rod
crankshaft
cylinder liner
post-repair testing procedures for heavy vehicle compression ignition engines.
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 heavy vehicle compression ignition engines 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 specifications
two different heavy vehicle compression ignition engines with faults
diagnostic equipment for heavy vehicle compression ignition engines
tools, equipment and materials appropriate for repairing and adjusting heavy vehicle compression ignition engines.
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 heavy vehicle compression ignition engine
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 engine
2.1 Diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and environmental and safety requirements
2.2 Faults are identified from diagnostic test results and causes of faults are determined
2.3 Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
3. Repair engine
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 according to manufacturer procedures
3.4 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
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 engine 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 requirements must include:
work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for:
isolating and stabilising heavy vehicles or machines
lifting and supporting heavy vehicle compression ignition engines
operating compression ignition engines.
Environmental requirements must include:
procedures for trapping, storing and disposing of oil and fluid released from compression ignition engines.
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 heavy vehicle compression ignition engines, including diagnosing and repairing a fault in:
an engine cylinder head, which must include removing the cylinder head from the engine
an engine bottom end, which must include removing the crankshaft, pistons and connecting rods from the engine
dismantle and reassemble one of the above compression ignition engines, ensuring that engine is running at the end of the repair.
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 heavy vehicle compression ignition engines, including procedures for:
isolating and stabilising heavy vehicles or machines
lifting and supporting heavy vehicle compression ignition engines
working with compression ignition engines
environmental requirements, including procedures for trapping, storing and disposing of oil and fluid released from compression ignition engines
operating principles of heavy vehicle compression ignition engines and associated components, including:
combustion, including:
combustion cycle
swept volume and engine volume
compression ratio
valve timing
engine efficiency, including volumetric efficiency, thermal efficiency and mechanical efficiency
torque and horsepower, including brake horsepower
application, purpose and operation of heavy vehicle compression ignition engines and components, including:
diagnostic testing procedures for heavy vehicle compression ignition engines, including:
engine compression tests
cylinder leakage tests
oil pressure tests
source of fluid leak diagnosis
exhaust smoke diagnosis
abnormal engine noise diagnosis
dismantling, inspection and reassembly procedures for heavy vehicle compression ignition engines, including procedures for:
measuring clearances and tolerances, including:
crankshaft and camshaft bearings and journals
main bearing and connecting rod tunnels
cylinder bores and pistons
liner depths and protrusions
cylinder heads
inspecting components
repair procedures for heavy vehicle compression ignition engines, including procedures for removing and refitting the:
cylinder head
piston and connecting rod
crankshaft
cylinder liner
post-repair testing procedures for heavy vehicle compression ignition engines.
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 heavy vehicle compression ignition engines 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 specifications
two different heavy vehicle compression ignition engines with faults
diagnostic equipment for heavy vehicle compression ignition engines
tools, equipment and materials appropriate for repairing and adjusting heavy vehicle compression ignition engines.
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 manufacturer specifications, workplace procedures, and environmental and safety requirements
Faults are identified from diagnostic test results and causes of faults are determined
Diagnosis findings, including 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 according to manufacturer procedures
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
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 engine 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 manufacturer specifications, workplace procedures, and environmental and safety requirements
Faults are identified from diagnostic test results and causes of faults are determined
Diagnosis findings, including 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 according to manufacturer procedures
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
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 engine 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
AURHTE002 - Diagnose and repair heavy vehicle compression ignition engines
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Result: Competent Not yet competent
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Assessment Record Sheet
AURHTE002 - Diagnose and repair heavy vehicle compression ignition engines
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Assessment task 1: [title] Result: Competent Not yet competent
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Overall assessment result: Competent Not yet competent