MEM27022 — Maintain, fault find and repair traction drive mechanics

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What an assessment for MEM27022 must cover

36 assessable components: 4 elements (21 performance criteria), 9 performance evidence and 6 knowledge evidence requirements. 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 Determine job requirements

1.1Follow standard operating procedures (SOPs)
1.2Comply with work health and safety (WHS) requirements at all times
1.3Use appropriate personal protective equipment (PPE) in accordance with SOPs
1.4Identify job requirements from specifications, drawings, job sheets and work instructions
1.5Check equipment operational records and fault reports and codes for indications of traction system problems

2 Diagnose and rectify traction drive mechanical components

2.1Observe engine and alternator or generator during operation for signs of abnormal shaft vibration and noise
2.2Inspect shafts and bearings from prime mover to alternator or generator for poor lubrication, wear, overheating, corrosion or other faults
2.3Rectify shafts and bearings through repair or replacement
2.4Align shaft to manufacturer specifications using specified procedures and test instruments
2.5Assess coupler and bearing clearances and adjust, as required
2.6Check dynamic retarding components, including resistance grids, cooling air ducts and fan/blowers for operation and blockages and repair/rectify damaged components
2.7Check wheel motor assemblies for alignment, wear, vibration and rectify faults to manufacturer specifications
2.8Test operation of solenoids, valves, sensors, links to electronic control modules (ECMs) and rectify where required
2.9Arrange for repair/rectification of any identified electrical related faults

3 Remove or install new, repaired or replacement major traction drive components

3.1Ensure equipment is parked safely, engine off and battery, other electrical and hydraulic systems de-energised
3.2Check all cables, hoses and pipes are disconnected
3.3Remove or install major component according to manufacturer specifications
3.4Remove or refit ancillary components, hoses, pipes, sensors, fieldbus links and connections
3.5Arrange for connection of low and/or high voltage power supply connections

4 Complete repair or installation

4.1Test run equipment and make any required post-installation adjustments
4.2Document work undertaken on traction drive according to workplace procedure

Performance evidence

following work instructions, standard operating procedures (SOPs) and safe work practices
identifying and interpreting specifications, charts, lists, drawings and other applicable reference documents to perform engine repair or replacement
testing procedures for traction drive components
checking traction drive and equipment performance against specifications
checking components and parts for abnormal wear or defects and identifying whether to reuse, repair or replace components and parts
aligning shafts from engine to alternator or generator
replacement of worn or faulty parts
obtaining and recording measurements and interpreting readings for replacement or reuse as being under or over size
assembly and disassembly of traction drive components using appropriate tools, equipment and techniques

Knowledge evidence

safe work practices and procedures and use of personal protective equipment (PPE)
tools, techniques and equipment to be used and reasons for selection
criteria for identifying components for reuse or replacement
traction system layout and principles, including: - types of engines (prime movers) and operating principles and power output - relationship of alternator/generator speed/load to engine performance - power path to motors, including role of engine, alternators/generators, inverters and rectifiers, and dynamic retarding, including function of cooling grid and blower, and wheel motors - controls and instrumentation, including systems and controls for remote operation and monitoring
action to be taken when abnormal wear or defects are observed in the traction drive components
test instruments and tools used for traction drive service and maintenance

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 MEM27022

What does an assessment tool for MEM27022 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM27022 needs to address all 36 unit components: 4 elements with 21 performance criteria, 9 performance evidence requirements, 6 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 MEM27022?

Auditori pulls the current release of MEM27022 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 MEM27022 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM27022 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 MEM27022, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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