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Elements and Performance Criteria

1. Identify and confirm the work requirement
   • Objective of the analysis and evaluation is determined from workplace instructions
   • Specifications for heavy commercial vehicle engine or fuel system are sourced and interpreted
   • System faults, deficiencies or discrepancies are identified and confirmed
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
2. Prepare for analysis and evaluation
   • Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation
   • Analytical and evaluative methodology is developed or identified from technical information
   • Testing equipment is prepared according to manufacturer specifications and workplace procedures
   • Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use
   • Engine or fuel system and components are prepared for the diagnostic process
3. Carry out analysis and evaluation
   • Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures
   • Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes
   • Analytical findings and results are assessed against evaluation criteria
   • Valid conclusions are drawn from available evidence and documented according to workplace requirements
4. Make recommendations
   • Options for responding to the objective are determined from further research of technical support information
   • Rectification method is selected from an analysis of the options, operating conditions, regulatory requirements, Australian Design Rules, and financial implications
   • Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method
5. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations
   • 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
6. Identify and confirm the work requirement
   • Objective of the analysis and evaluation is determined from workplace instructions
   • Specifications for heavy commercial vehicle engine or fuel system are sourced and interpreted
   • System faults, deficiencies or discrepancies are identified and confirmed
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
7. Prepare for analysis and evaluation
   • Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation
   • Analytical and evaluative methodology is developed or identified from technical information
   • Testing equipment is prepared according to manufacturer specifications and workplace procedures
   • Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use
   • Engine or fuel system and components are prepared for the diagnostic process
8. Carry out analysis and evaluation
   • Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures
   • Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes
   • Analytical findings and results are assessed against evaluation criteria
   • Valid conclusions are drawn from available evidence and documented according to workplace requirements
9. Make recommendations
   • Options for responding to the objective are determined from further research of technical support information
   • Rectification method is selected from an analysis of the options, operating conditions, regulatory requirements, Australian Design Rules, and financial implications
   • Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method
10. Complete work processes
    • Final inspection is made to ensure work is to workplace expectations
    • 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

Range Statement

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 fuel pressures environmental requirements, including procedures for containing and handling fluids released from engine and fuel systems.
Analytical and evaluative methodology must include:	diagnostic process, sequence, tests and testing equipment.

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Performance Evidence

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:

analyse and evaluate a fault in the:

engine system of a heavy commercial vehicle

fuel system of a different heavy commercial vehicle

engine or fuel system of a third heavy commercial vehicle.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to analysing and evaluating faults in heavy commercial vehicle engine and fuel systems, including procedures for working with high fuel pressures

environmental requirements, including procedures for containing and handling fluids released from engine and fuel systems

principles and processes involved in planning and implementing analysis and evaluation of engine and fuel system faults

design and planning of diagnostic procedures of heavy commercial vehicle engine and fuel system faults, including procedures for diagnosing:

hydraulic faults

mechanical faults

electrical faults

procedures for analysing and evaluating heavy commercial vehicle engine and fuel system faults, including:

system failure analysis

component failure analysis

types, functions, operation and limitations of the following systems:

engine and components

fuel system and components

impact of other associated vehicle systems on engine and fuel system operation, including:

engine electrical system and components

intake system and components

exhaust system and components

lubrication system and components

cooling system and components

testing procedures for heavy commercial vehicle engine and fuel systems, including:

engine wear analysis

engine performance

exhaust gas analysis

types, functions, operation and limitations of diagnostic testing equipment required to analyse and evaluate faults in engine and fuel systems

procedures for documenting and reporting the system analysis and evaluation process

requirements of Australian Design Rules (ADRs) relating to heavy commercial vehicle engine and fuel systems.

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