Application

This unit of competency defines the skills and knowledge required to maintain gas turbine engines used in stationary plant applications.

It covers scheduled servicing, preventative maintenance, fault finding and repair or rectification of faulty operation and components undertaken on gas turbine engines up to 5 GJ/hr (1300 kw) capacity, including ancillary equipment that may be associated with the engine operation.

The application of the skills and knowledge described in this unit in some states/territories may require an authority to practice in the workplace. Other conditions may apply under state and territory legislative and regulatory requirements.

What You'll Learn

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two (2) occasions and include:

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 of turbine engine operation with and without fuel

checking gas turbine engine performance against specifications for conformance

purging of gas turbine and associated equipment

checking components and parts for abnormal wear or defects and identifying whether to reuse, repair or replace components and parts

replacing worn or faulty parts

cleaning parts using appropriate solutions and safety precautions and rack and setting out engine parts according to their original position in readiness for reassembly

obtaining and recording measurements and interpreting readings for replacement or reuse as being under or over size

assembly and disassembly of gas turbine engine using appropriate tools, equipment and techniques.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

tools, techniques and equipment to be used and reasons for selection

characteristics of surface finishes and wear patterns as applied to gas turbine engine components

criteria for identifying the components for reuse or replacement

gas turbine engine layout and operation, including:

types of gas turbine

operating principles and power output

gas path

intakes

compressors

combustion chambers

turbine blades

air intake path

exhaust path

bearings and seals

lubrication system

starting system

ignition system

safety systems, including safety shut off systems, leak detection systems and vents

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 engine components

test instruments and tools used for gas turbine service and maintenance

purging procedure for the stationary gas turbine and associated equipment

gas turbine engine fuel types, properties and applications

relevant standards and regulations including AS 3814:2015 Industrial and commercial gas-fired appliances and AS/NZS 5601 Gas installation

concept of under/over size of replacement parts and the reasons for identifying replacement parts as under or over size

tools, techniques and equipment required to correct faults.

Assessment Conditions

Assessors must:

have vocational competency in maintaining, fault finding and repairing stationary plant gas turbine engines at least to the level being assessed with relevant industry knowledge and experience

satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires

Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills

Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Foundation Skills

• text: This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

• {'code': 'MEM09002', 'title': 'Interpret technical drawing'}
• {'code': 'MEM11011', 'title': 'Undertake manual handling'}
• {'code': 'MEM12023', 'title': 'Perform engineering measurements'}
• {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
• {'code': 'MEM16006', 'title': 'Organise and communicate information'}
• {'code': 'MEM18001', 'title': 'Use hand tools'}
• {'code': 'MEM18002', 'title': 'Use power tools/hand held operations'}
• {'code': 'MEM18055', 'title': 'Dismantle, replace and assemble engineering components'}

Parent Qualifications

• MEM40119 — Certificate IV in Engineering
  MEM

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