MEM27017Maintain, fault find and rectify hydraulic systems for mobile plant

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What an assessment for MEM27017 must cover

64 assessable components: 7 elements (31 performance criteria), 14 performance evidence and 19 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 or work instructions

2 Secure system from potentially hazardous situations

  • 2.1Identify sources of stored energy and assess mobile plant for potentially hazardous situations and conditions
  • 2.2Bleed down accumulators and position actuators to remove stored energy in accordance with manufacturer instructions

3 Identify equipment hydraulic systems and relevant operational data

  • 3.1Check specifications and drawings for mobile equipment systems, actuators and accessories dependent on hydraulic power
  • 3.2Identify control modules and fieldbus wiring locations for hydraulic systems
  • 3.3Consult equipment operator where appropriate and collect additional data on equipment performance and faults
  • 3.4Check previous maintenance reports and preventative maintenance schedules and review for additional fault-finding data

4 Check hydraulic system components and fluid

  • 4.1Identify system components using appropriate circuit diagrams or manufacturer instructions
  • 4.2Inspect equipment for obvious faults, leaks and contamination
  • 4.3Access, inspect and test the operational function of components in accordance with SOPs
  • 4.4Trace and localise faults with reference to manufacturer troubleshooting procedures, including using accessing and interpreting fault codes in controllers
  • 4.5Determine parts that require repair or replacement
  • 4.6Check hydraulic fluid and components for signs of contamination

5 Rectify component faults

  • 5.1Remove faulty components from system using appropriate tools, procedures and techniques
  • 5.2Source replacement components from manufacturer/supplier
  • 5.3Prepare and assemble hoses, tubes and pipework
  • 5.4Assemble and refit replacement components and conductors to system
  • 5.5Replace filter or fluid where required
  • 5.6Test and adjust system for correct operation according to SOPs

6 Dismantle, inspect and rectify linear actuators

  • 6.1Dismantle hydraulic cylinders and rams using appropriate tools, procedures and techniques
  • 6.2Evaluate component parts for condition
  • 6.3Fit seals and bearings in accordance with manufacturer specifications
  • 6.4Reassemble and fit cylinders/rams in accordance with manufacturer instructions
  • 6.5Test assembly in accordance with manufacturer instructions

7 Complete maintenance and fault rectification work

  • 7.1Perform scheduled preventive maintenance and other hydraulic systems servicing according to manufacturer schedules and instructions
  • 7.2Verify correct operation of the system using fluid power principles and manufacturer instructions
  • 7.3Instigate appropriate follow-up procedures
  • 7.4Update maintenance and service records

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 maintain hydraulic systems on mobile plant
  • identifying sources of stored energy and hazardous situations/conditions, including bleeding down accumulators and position actuators, and applying appropriate safety measures
  • fault finding hydraulic system down to component level using appropriate fluid power principles and procedures
  • inspecting and testing components using appropriate equipment in accordance with procedures
  • identifying and tracing fieldbus circuits and control modules related to hydraulic systems on equipment
  • removing/refitting faulty components to system, including pipes, hoses, conductors and fittings and where appropriate cutting and assembling conductors to length using appropriate tooling/machine, techniques and procedures
  • undertaking calculation and numerical operations associated with maintaining fluid power systems on mobile plant
  • testing and adjusting replacement components for correct operation and compliance to specifications
  • dismantling linear actuators without damage using appropriate tools, techniques/procedures and safety measures and using specificatio ns to identify performance/condition of cylinders and rams for wear and damage
  • fitting seals and bearings and reassembling cylinder/ram in accordance with manufacturer instructions
  • refitting and testing assembly to machine and verifying repairs on machine circuit and/or test rig to specifications
  • carrying out general servicing of hydraulic system in accordance with manufacturer instructions
  • recording/reporting service activities in accordance with SOPs.

Knowledge evidence

  • safe work practices and procedures and use of personal protective equipment (PPE)
  • different sources of stored energy and their applications and reasons for bleeding accumulators and actuators and the hazards associated with working on pressurised systems
  • open circuit hydraulic systems, including: - applications - fixed displacement pump systems, including simple Open centre DCV systems and closed centre with bypass (3 port) compensator inlet - variable displacement pump systems, including pre and post-compensated systems - open centre systems - pump control systems, including proportional displacement control for open circuit pumps - common faults and preventative maintenance
  • closed circuit systems, including: - applications - simple fixed/variable pumps with manual control - common faults and preventative maintenance
  • full range of hydraulic system components in a mobile plant application
  • information on circuit diagram or manufacturer instructions
  • characteristics and operational function of each system component
  • impact of other equipment systems on the hydraulic system
  • methods and techniques for tracing and localising faults and problems and reasons relating to faulty hydraulic system components/ operation in accordance with specifications
  • procedures for: - inspecting and testing hydraulic system components and equipment to be used - checking and adjusting the system - dismantling linear actuators and tools, techniques, procedures and safety measures to be used - fitting bearings and seals - reassembly/fitting of cylinder/ram and sequence to be used - testing and verifying repairs using machine circuits and/or test rigs and necessary remedial action
  • common faults in hydraulic components
  • specifications and correct operation of each hydraulic system component and conductors
  • removal methods for various components
  • information in catalogues or electronic media and procedures to obtain replacement parts
  • typical conductor types and fittings their applications
  • methods for cutting/assembling hoses/tubes/pipework
  • tools and techniques for fitting replacement components and conductors
  • methods of inspection and measurement and guides and specificatio ns for reusable parts
  • manufacturer scheduled service timeframes, service items and service procedures.

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 MEM27017

What does an assessment tool for MEM27017 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM27017 needs to address all 64 unit components: 7 elements with 31 performance criteria, 14 performance evidence requirements, 19 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 MEM27017?

Auditori pulls the current release of MEM27017 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 MEM27017 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM27017 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 MEM27017, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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