Assessment Requirements for AURTTF005 Diagnose and repair engine forced-induction systems

Release: 1

Assessment Requirements for AURTTF005 Diagnose and repair engine forced-induction systems

Modification History

Release	Comment
Release 1	New unit of competency.

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:

diagnose and repair a turbocharger fault in an engine forced-induction system

diagnose and repair a fault in two of the following components of engine forced-induction systems:

variable turbocharger

compound turbocharger

waste-gate actuator

intercooler

supercharger.

Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing engine forced-induction systems, including procedures for working with high temperature exhaust and intake system components

operating principles of engine forced-induction systems and associated components, including volumetric efficiency

application, purpose and operation of engine forced-induction systems and components, including:

turbochargers, including:

twin scroll

twin turbocharger

turbo compounding

variable geometry turbocharger

waste-gate operation

lubrication and cooling

intercooler operation, including air to air and water to air

supercharger operation

diagnostic testing procedures for engine forced-induction systems, including:

intake manifold pressure and vacuum testing

intake and exhaust system leak testing

turbo boost air pressure

intercooler pressure and temperature checks, types include air to air and air to water

oil supply

oil return to sump

turbocharger waste-gate testing

visual inspection for oil leakage

turbine rotating assembly end float and axial movement

repair procedures for engine forced-induction systems, including procedures for:

removing and replacing turbochargers

testing, removing, replacing and adjusting waste-gates

post-repair testing procedures for engine forced-induction systems.

Assessment Conditions

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the engine forced-induction systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer engine forced-induction system specifications

one vehicle or machinery with engine forced-induction systems and a fault in turbocharger

diagnostic equipment for engine forced-induction systems, including dial indicator, vacuum and pressure gauges, and temperature gauges

tools, equipment and materials appropriate for repairing engine forced-induction systems.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1