Assessment Requirements for AURHTQ002 Diagnose and repair heavy commercial vehicle final drive assemblies

Release: 1

Assessment Requirements for AURHTQ002 Diagnose and repair heavy commercial vehicle final drive assemblies

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 one heavy commercial vehicle final drive assembly and:

undertake a complete dismantle and reassembly of a crown wheel and pinion final drive assembly

remove, refit or replace one final drive assembly

remove, refit or replace one rear axle wheel bearing assembly.

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 heavy commercial vehicle final drive assemblies, including procedures for:

isolating and stabilising vehicles

lifting and supporting final drive assemblies

environmental requirements, including procedures for trapping, storing and disposing of oil released from final drive assemblies

operating principles of heavy commercial vehicle final drive assemblies and associated components, including:

final drive gears, including:

gear types

gear ratios and torque reduction and multiplication

differential function

application, purpose and operation of heavy commercial vehicle final drive assemblies and components, including:

single reduction

two-speed reduction

double reduction

tandem drive

power divider

differentials, including limited slip differentials

axle shafts and bearings

diagnostic testing procedures for heavy commercial vehicle final drive assemblies, including:

road-testing procedures, including:

final drive assembly noise diagnosis

final drive assembly operation

pre-dismantling inspection procedures

repair procedures for heavy commercial vehicle final drive assemblies, including procedures for:

dismantling assemblies

inspecting assemblies

reassembling and adjusting the following components:

pinion depth

pinion bearing preload

crown wheel and pinion backlash

side bearing preload

crown wheel and pinion tooth contact

post-repair testing procedures for heavy commercial vehicle final drive assemblies.

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 heavy commercial vehicle final drive assemblies 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:

mechanical repair workplace or simulated workplace

workplace instructions

manufacturer final drive assembly specifications

heavy commercial vehicle crown wheel and pinion final drive assembly with faults

diagnostic equipment for heavy commercial vehicle final drive assemblies

tools, equipment and materials appropriate for repairing and adjusting heavy commercial vehicle final drive assemblies.

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