MEM18091 — Maintain and repair multistage, cascade and/or ultra-cold industrial refrigeration systems

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 or work instructions

2 Undertake preventive maintenance checks/adjustments

• 2.1Check the temperature, pressure and properties of the system for conformance to specification
• 2.2Check the noise/vibration levels of the system for conformance to specification
• 2.3Perform preventative maintenance tasks according to manufacturers’ specifications using refrigeration techniques/practices

3 Undertake fault-finding

• 3.1Identify system components
• 3.2Interpret the characteristics and operation of each component
• 3.3Inspect and test the operational function of each component and assess correct operation against specification

4 Repair/replace faulty components

• 4.1Localise faulty components and confirm malfunction
• 4.2Remove the refrigerant safely from the system and contain in accordance with procedures and regulatory requirements, where appropriate
• 4.3Dismantle faulty components and repair to manufacturers’ specifications, as required
• 4.4Select replacement parts from manufacturers’ catalogues

5 Return to service multistage, cascade and/or ultra-cold refrigeration systems

• 5.1Reassemble components and test for correct operation and assess against specification
• 5.2Charge the system safely with correct refrigerant and in accordance with procedures and regulatory requirements, where appropriate
• 5.3Verify correct operation of the equipment
• 5.4Complete maintenance records/service reports according to SOPs and legislative requirements

What does an assessment tool for MEM18091 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM18091 needs to address all 39 unit components: 5 elements with 18 performance criteria, 11 performance evidence requirements, 10 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 MEM18091?

Auditori pulls the current release of MEM18091 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 MEM18091 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM18091 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 MEM18091, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.