AURTTM005 — Balance rotating and reciprocating engine components

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What an assessment for AURTTM005 must cover

31 assessable components: 3 elements (11 performance criteria), 4 performance evidence and 8 knowledge evidence requirements, plus 8 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 balance rotating and reciprocating engine component

1.1Job requirements are determined from workplace instructions
1.2Methods of balancing component are sourced and interpreted from manufacturer literature and workplace procedures
1.3Tools and measuring equipment are selected and checked for serviceability
1.4Hazards associated with the work are identified and risks are managed
1.5Engine component is prepared for balancing operations and balancing machine is prepared to accept component according to safety requirements

2 Balance rotating and reciprocating engine component

2.1Component is mounted and engaged with machine according to workplace procedures and safety requirements, and following machinery safe operating procedures
2.2Rotating and reciprocating engine components are balanced in line with workplace requirements and according to workplace procedures, safety requirements, and machinery safe operating procedures, and without causing damage to components or system

3 Complete balancing processes

3.1Final inspection is made to ensure work is to workplace requirements
3.2Component is cleaned and presented ready for use or stored according to workplace procedures
3.3Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
3.4Workplace documentation is processed according to workplace procedures

Performance evidence

balance one four or six cylinder in-line engine crankshaft assembly, including: • front pulley • crankshaft and flywheel and pressure plate (manual transmission) or drive plate (automatic transmission)
balance one V8 engine crankshaft assembly, including: • front pulley • crankshaft and flywheel and pressure plate (manual transmission) or drive plate (automatic transmission)
balance one piston and connecting rod assembly
during the above work, perform each of the following methods of adding or removing weight from engine components: • drilling • welding • machining

Knowledge evidence

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to balancing rotating and reciprocating engine components, including operational risk assessment and treatments associated with: • electrical safety of balancing equipment and machinery • equipment and machinery movement and operation
operating principles of component balancing, including: • dynamic balance • internally and externally balanced engines • reciprocating mass • rotating mass • sources of torsional vibration • gas pressure • purpose of counterweights, torsional vibration dampeners, and balance shafts in balancing
difference between in-line engine balance, flat plane and V type engine balance, including the effect of the number and angle of cylinders
balancing procedures and techniques, including: • in-line engines, flat plane crankshafts and V type engines • protecting crank pins from damage from bob-weight clamping • protecting main bearing journals from damage from balancing machine cradle rollers or V block • weight matching the pistons and rod ends
methods of calculating bob-weight values for V type and in-line engines, including: • rotating mass with oil allowance • reciprocating mass • effect of number of cylinders and V angle on the total calculation • mounting bob-weights on crankshafts of V type engines
balancing internally balanced engines
balancing externally balanced engines
procedures for adding and removing metal to the crankshaft, including: • drilling and linishing to remove weight • welding to add weight • machining or drilling and adding heavy metal

Foundation skills

Learning skills: locate appropriate sources of information efficiently.
Reading skills: identify and interpret engine component specifications from workshop literature interpret safe operating procedures for engine component balancing machinery from operating manuals.
Writing skills: legibly and accurately fill out workplace documentation when recording measurements.
Oral communication skills: clarify instructions.
Numeracy skills: interpret numerical information in manufacturer specifications, workshop manuals, and machinery dials and gauges use basic mathematical operations, including addition, subtraction, division and multiplication to: • convert metric dimensions to imperial, and imperial dimensions to metric • weigh engine components to determine weight to be removed or added.
Digital literacy skills: navigate and operate computerised balancing machinery.
Problem solving skills: determine the most appropriate balancing method for the situation.
Technology skills: use metric and imperial 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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Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:

Questions about assessing AURTTM005

What does an assessment tool for AURTTM005 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for AURTTM005 needs to address all 31 unit components: 3 elements with 11 performance criteria, 4 performance evidence requirements, 8 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 AURTTM005?

Auditori pulls the current release of AURTTM005 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 AURTTM005 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing AURTTM005 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 AURTTM005, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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