Assessment Requirements for AURLTX002 Diagnose and repair light vehicle automatic transmissions

Release: 1

Assessment Requirements for AURLTX002 Diagnose and repair light vehicle automatic transmissions

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 fault in two different light vehicles with different automatic transmissions, in which the faults must involve two of the following components:

torque converter

transmission oil pump

front pump seal

valve body

shift or pressure solenoid

clutch pack

brake band

brake band servo

one-way clutch

planetary gear set

continuously variable transmission (CVT) belt or pulley

internal bearings or thrust washers

remove, refit or replace one of the above light vehicle automatic transmissions.

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 light vehicle automatic transmissions, including procedures for lifting, supporting and manual handling light vehicle automatic transmissions

environmental requirements, including procedures for trapping, storing and disposing of fluids released from light vehicle automatic transmissions

operating principles of light vehicle automatic transmissions and associated components, including:

fluid couplings

planetary gears, including:

single planetary gear operation

types of compound planetary gears, including Ravigneaux and Simpson planetary gear sets

gear ratios and torque reduction and multiplication

lubricant types and properties

application, purpose and operation of light vehicle automatic transmissions and components, including:

torque converters, including:

impeller, stator, one-way clutch and turbine operation

lock-up torque converters

automatic transmission mechanical components, including brake bands, clutch packs, one-way clutches, and compound planetary gear sets

power flows, including:

longitudinal automatic transmissions

automatic transaxles

automatic transmission hydraulic components and hydraulic control components, including:

oil pumps

hydraulic valves, including pressure regulating valves, manual valves, shift valves, governor valves and throttle pressure valves

automatic transmission electronic components, including:

electronic control module

input sensors, including vehicle speed sensor, throttle position sensor, mass air flow (MAF) sensor, manifold absolute pressure (MAP) sensor, transmission range sensor, engine speed sensor and temperature sensor

electronic control module outputs, including indicator lamps, shift solenoids, pressure control solenoids and torque converter clutch solenoids

continuously variable transmissions, including operating principles of belts and pulleys

diagnostic testing procedures for light vehicle automatic transmissions, including procedures for:

stall tests

pressure test

using scan tools when testing

repair procedures for light vehicle automatic transmissions , including procedures for removing, replacing and adjusting them

post-repair testing procedures for light vehicle automatic transmissions.

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 light vehicle automatic transmissions 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 light vehicle automatic transmission specifications

two different light vehicles with faults in the automatic transmission components specified in the performance evidence

diagnostic equipment for light vehicle automatic transmissions

tools, equipment and materials appropriate for repairing light vehicle automatic transmissions.

Links

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

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