Modification History
Not Applicable
Unit Descriptor
Unit descriptor |
This unit covers the competence to analyse and evaluate gas fuel systems in order to initiate action to sustain, vary or enhance performance. |
Application of the Unit
Application of the unit |
It includes failure analysis covering the complex diagnosis of multi-system and intermittent faults as well as evaluation of performance achievements and variations. It also requires the candidate to identify, evaluate, select and record the most appropriate response to the stated objective of the analysis and evaluation process. Work requires individuals to demonstrate research, analytical, judgement and problem-solving skills in the diagnosis of faults. |
Licensing/Regulatory Information
Not Applicable
Pre-Requisites
Prerequisite units |
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Employability Skills Information
Employability skills |
This unit contains employability skills. |
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
1. Identify and confirm the work requirement |
1.1. Work instructions and reports are used to determine the nature and objective of the analysis and evaluation requirements. 1.2. Benchmark specifications for correctly functioning gas fuel systems are accessed and interpreted. 1.3. OH&S requirements, including regulatory requirements, equipment and system isolation requirements and personal protection needs are observed throughout the work. 1.4. The effects of any systemic deficiencies/discrepancies or faults are identified and confirmed from indirect and/or direct evidence. 1.5. Possible safety impacts of the work are considered and responded to in accordance with regulatory and enterprise obligations and practices. |
2. Prepare for analysis and evaluation |
2.1. Evaluative criteria are developed/adopted to meet the objective of the work. 2.2. System performance achievements and/or discrepancies are identified from an analysis of technical support information and available on-board diagnostic systems. 2.3. The most appropriate analytical and evaluative methodology including diagnostic process, sequence, tests and testing equipment are developed and/or identified and selected from the range of available options. 2.4. Testing equipment is obtained and prepared for application in accordance with regulatory, manufacturer/component supplier and enterprise requirements. 2.5. Tools and material required to support the diagnostic process are identified, selected and prepared for use. 2.6. Gas fuel system components are prepared for the diagnostic process including park-up, isolation and cleaning requirements. |
3. Apply the analysis and evaluative methodology |
3.1. The selected analytical and diagnostic process is followed in accordance with specifications and directions and/or the locally authorised method. 3.2. Tests and testing equipment are applied in accordance with regulatory requirements and the manufacturer/component supplier specifications. 3.3. Analytical and other diagnostic findings are verified, if necessary, by using reliable alternate or optional processes, and documented. 3.4. Analytical findings and results are evaluated against the agreed criteria. 3.5. Valid conclusions are drawn from the available evidence and documented to enterprise requirements. 3.6. Information and detail related to the analysis and evaluation is provided to the appropriate parties in accordance with regulatory and commercial obligations. |
4. Select response measure |
4.1. Options for responding to the objective or need are identified from further research of technical support information. 4.2. The most appropriate response option is selected from an analysis of the options, the prevailing circumstance, regulatory requirements and commercial policies. 4.3. The selected response option is documented and reported in accordance with regulatory and enterprise requirements and practices. |
5. Restore the workplace |
5.1. Material that can be reused is collected and stored. 5.2. Testing equipment and other support material are cleaned, maintained and prepared ready for further use or stored in accordance with manufacturer/component supplier specifications and enterprise requirements. 5.3. Waste and scrap is removed following workplace procedures. 5.4. Equipment and work area are cleaned and inspected for serviceable condition in accordance with workplace procedures. 5.5. Unserviceable equipment is tagged and faults identified in accordance with workplace. |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
This section describes the skills and knowledge required for this unit. |
Required skills |
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Required knowledge |
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Evidence Guide
EVIDENCE GUIDE |
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The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
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Context of , and specific resources for assessment |
Assessment may occur on the job or in a workplace simulated facility with relevant process equipment, material, work instructions and deadlines. Access to a realistic requirement and objectives for analysis and evaluation, operational gas fuel systems with real or simulated faults, monitoring processes and testing equipment appropriate to the objectives, research facilities and technical information and a realistic work environment. |
Method of assessment |
Assessment of this competency is most likely to be project related under real or simulated conditions and require portfolios or other forms of indirect evidence of process. Direct evidence may include certification of compliance of the final outcome/product or authorisation for use by a competent authority. Assessment must confirm the inference that competency is able not only to be satisfied under the particular circumstances, but is able to be transferred to other circumstances. Competence in this unit may be assessed in conjunction with other functional units which together form part of the holistic work role |
Guidance information for assessment |
Range Statement
RANGE STATEMENT |
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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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Failure analysis and evaluation process |
The objective of the failure analysis and evaluation process may be to determine fault rectification measures, to effect variation in system characteristics and parameters or to enhance system performance. |
System faults |
Gas fuel system faults covered by this unit are to include direct failures in safety systems, electrical systems, fuel delivery system, sequential vapour injection, fuel container, calibration and adjustment specifications, component specifications, component assembly and system modifications. |
System failures |
Gas fuel system failures covered by this unit are to include indirect faults caused by the influence of external systems which may or may not be faulty in their primary operations. |
Unit context |
Work is carried out in accordance with legislative obligations, Australian Design Rules, environmental legislation, relevant health regulations, manual handling procedures and organisation insurance requirements. |
OH &S |
OH&S requirements, vehicle industry regulations, safety management systems, hazardous substances and dangerous goods code and safe operating procedures. |
Evaluative criteria |
Evaluative criteria, sometimes referred to as success factors, detail the criteria against which the achievement of the objectives of the analysis are judged. They are to include statistically based criteria and may include other measures. |
Isolation procedures |
Equipment isolation procedures are to regulatory, industry and enterprise standards. |
Testing equipment |
Testing equipment is to include multimeters, data scanners, test lights, pressure/vacuum gauges, water and mercury manometers, electronic leak detectors, engine tune oscilloscopes, four-gas engine analyser and exhaust pressure gauge, and may include other manufacturer testing equipment. |
Tests |
Tests to be conducted are to include liquid and vapour pressure, leakage, operation of all safety components and systems, electrical control systems, exhaust emissions, engine performance, gas system performance and data interpretation and readings related to direct, indirect and intermittent causes. |
Personal protective equipment |
Personal protective equipment is to include that prescribed under legislation, regulations and enterprise policies and practices. |
Information and procedures |
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Unit Sector(s)
Unit sector |
Technical |
Co-requisite units
Co-requisite units |
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Competency field
Competency field |