AURTTL105 — Diagnose and repair LNG fuel systems
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What an assessment for AURTTL105 must cover
34 assessable components: 4 elements (17 performance criteria), 1 performance evidence and 10 knowledge evidence requirements, plus 6 foundation skills. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.
Elements & performance criteria
1 Prepare to diagnose and repair LNG fuel system
- 1.1Determine job requirements from workplace instructions
- 1.2Source and interpret diagnostic information
- 1.3Analyse diagnostic options and source testing strategy, selecting those required for the circumstances
- 1.4Identify hazards associated with the work and manage risks
- 1.5Select and check diagnostic tools and equipment required for testing strategy for serviceability
2 Diagnose LNG fuel system
- 2.1Perform diagnostic tests set out in testing strategy according to workplace procedures and safety and environmental requirements
- 2.2Identify faults from diagnostic test results and determine causes of faults
- 2.3Confirm and report cause of fault according to workplace procedures
- 2.4Develop and report recommendations for required repairs or adjustments according to workplace procedures
3 Repair LNG fuel system
- 3.1Source and interpret repair information
- 3.2Analyse repair options and select those required for the circumstances
- 3.3Select and check repair tools, equipment and materials
- 3.4Carry out repairs and component replacements and adjustments according to manufacturer specifications, workplace procedures, safety and environmental requirements, and AS/NZ 2739 Natural gas (NG) fuel systems for vehicle engines, and without causing damage to components or system
- 3.5Carry out post-repair testing according to workplace procedures and AS/NZ 2739 to confirm fault rectification, and rectify any further problems detected as having been introduced during the repair process
4 Complete work processes
- 4.1Conduct final inspection according to workplace procedures and confirm vehicle is ready for use
- 4.2Clear work area and dispose of or recycle materials according to workplace procedures
- 4.3Process workplace documentation according to workplace procedures
Performance evidence
- diagnose and repair a fault in one of the following components in at least two vehicles with different liquefied natural gas (LNG) fuel systems: mixers, regulators, fuel lock-off valves, electronic control valves or switches.
Knowledge evidence
- methods to locate and interpret information required to diagnose and repair LNG fuel systems, including: information provided by customer and supervisors; manufacturer specifications and procedures or equivalent documentation
- workplace procedures required to diagnose and repair LNG fuel systems, including: establishing serviceability of tools and equipment; documentation procedures; housekeeping procedures, including: examination of tools and equipment, storage of equipment, identification, tagging and isolation of faulty equipment, disposal of excess materials, recycling procedures
- work health and safety (WHS) requirements relating to diagnosing and repairing LNG fuel systems, including procedures for: working with extremely cold and flammable gas; storing LNG
- environmental requirements, including procedures for preventing loss of gas to atmosphere
- key requirements of AS/NZ 2739 Natural gas (NG) fuel systems for vehicle engines
- operating principles of LNG fuel systems and associated components
- application, purpose and operation of LNG fuel systems and components, including: mixers, regulators, fuel lock-off valves, filters, tanks, control valves and switches
- diagnostic testing procedures for LNG fuel systems, including: mixers, regulators, fuel lock-off valves, electronic control valves and switches
- repair procedures for LNG fuel systems, including procedures for removing, replacing and adjusting the systems
- post-repair testing procedures for LNG fuel systems.
Foundation skills
- Learning: Locates required sources of information efficiently; Develops a sequenced plan for a specific task.
- Numeracy: Measures LNG fuel system components and uses mathematical operations to calculate distances, areas, volumes, tolerances and deviations from manufacturer specifications.
- Oral communication: Clarifies instructions; Obtains information from customers and supervisors.
- Reading: Interprets information from manufacturer and workshop literature when seeking LNG fuel system specifications and procedures.
- Planning and organising: Plans own work requirements; Prioritises actions to achieve required outcomes; Ensures tasks are completed within workplace timeframes.
- Technology: Uses precision measuring equipment.
Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.
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Questions about assessing AURTTL105
What does an assessment tool for AURTTL105 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for AURTTL105 needs to address all 34 unit components: 4 elements with 17 performance criteria, 1 performance evidence requirements, 10 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.
How does Auditori generate an assessment tool for AURTTL105?
Auditori pulls the current release of AURTTL105 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.
Is the first assessment tool really free?
Yes. Every new account includes one free credit — enough to generate the complete assessment tool for AURTTL105 — with no card and no subscription required. After that it's pay-as-you-go per unit.
Can I check my existing AURTTL105 assessment instead of generating a new one?
Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of AURTTL105, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
Related units
- AURTTL001 — Inspect and service CNG fuel systems
- AURTTL003 — Install CNG fuel systems
- AURTTL007 — Inspect and service LPG fuel systems
- AURTTL009 — Install LPG fuel systems
- AURTTL014 — Analyse and evaluate faults in gas fuel systems
- AURTTL102 — Diagnose and repair CNG fuel systems
- AURTTL104 — Inspect and service LNG fuel systems
- AURTTL108 — Diagnose and repair LPG fuel systems
- AURTTL111 — Diagnose complex faults in CNG fuel systems
- AURTTL112 — Diagnose complex faults in LNG fuel systems
- AURTTL113 — Diagnose complex faults in LPG fuel systems
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