Elements and Performance Criteria

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
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
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

OH&S requirements, vehicle industry regulations, safety management systems, hazardous substances and dangerous goods code and safe operating procedures
Work is carried out in accordance with legislative obligations, Australian Design Rules, environmental legislation, relevant health regulations, manual handling procedures and organisation insurance requirements
Work requires individuals to demonstrate research, analytical, judgement and problem solving skills in the diagnosis of faults

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

Equipment isolation procedures are to regulatory, industry and enterprise standards

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 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 is to include that prescribed under legislation, regulations and enterprise policies and practices

Workplace procedures relating to the use of tools and equipment
Workplace procedures relating to reporting and communication
Manufacturer/component supplier specifications and application procedures for testing equipment and material
Manufacturer/component supplier specifications, schematics and operational procedures related to stability/steering and suspension systems
Australian Design Rules
Gas fuel system regulations
Vehicle industry publications related to emerging gas fuel system technology and technology changes

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Interpret work order and locate and apply relevant information
Apply safety requirements including the isolation of equipment and the use of personal protective equipment

Follow work instructions, operating procedures and inspection processes to:

minimise the risk of injury to self and others
prevent damage and wastage of goods, equipment and products
maintain required production output and product quality

Diagnose gas fuel system faults, including one fault from each category listed below:

poor engine performance
increased emission levels
impact of a prior system modification
incorrect installation of the gas system
caused by an influence from an external system
Accurately record and report the diagnostic process and findings and recommended rectification
Work effectively with others
Modify activities to cater for variations in workplace context and environment

Underpinning knowledge
Mechanical theory covering the concepts and principles of mechanical, hydraulic and pneumatic systems
General knowledge of the concepts, principles and processes involved in planning and implementing systems analysis and evaluation
General knowledge of the theory of diagnosis including concept, design and planning
Detailed knowledge of the concepts, types, functions, operations and limitations of gas fuel systems
Detailed knowledge of the types, functions, operations and limitations of diagnostic testing equipment
General knowledge of the methods and processes for recording and reporting diagnostic findings and recommendations
General knowledge of personal computer operation

Specific key competencies, underpinning and employability skills required to achieve the performance criteria
These include a number of processes that are learned throughout work and life, which are required in most jobs. Some of these are covered by the national key competencies, although others may be added. The details below highlight how these competencies are to be applied in the attainment of this unit.

Application of the key competencies in this unit are to satisfy the nominated level in which:

Level 1 - relates to working effectively within set conditions and processes;
Level 2 - relates to the management or facilitation of conditions or processes; and
Level 3 - relates to the design, development and evaluation of conditions or process.
How will the candidate apply the following key competency in this unit? The candidate will need to:

Collect, analyse and organise information
Research, organise and understand technical information related to contemporary gas fuel systems, monitoring and testing processes, diagnostic methods and options and safety procedures.
(Level 3)

Communicate ideas and information
Communicate ideas and information to enable confirmation of work requirements and specifications, coordination of work with site supervisor, other workers and customers, the reporting of work outcomes and the completion of regulatory, commercial and vehicle information systems inputs.
(Level 2)

Plan and organise activities
Plan and organise activities including the planning of analytical processes, the establishment of evaluative (success) criteria, the preparation and layout of the worksite and the obtaining of testing equipment and material to avoid any backtracking, workflow interruptions or wastage.
(Level 2)

Work with others and in a team
Work with others and in a team by recognising dependencies and using cooperative approaches to optimise workflow and productivity.
(Level 2)

Use mathematical ideas and techniques
Use mathematical ideas and techniques to complete measurements, calculate analytical requirements, calibrate and establish testing equipment and present analytical results.
(Level 2)

Solve problems
Establish analytical processes, including diagnostic processes, which anticipate and allow for risks, cater for both direct and indirect evidence, avoid or minimise reworking and avoid wastage.
(Level 3)

Use technology
Use the workplace technology related to systems analysis and diagnosis, information research and management systems, testing equipment, maintenance equipment, tools, calculators and measuring devices.
(Level 2)

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

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

Specific resource requirements for this unit
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