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Elements and Performance Criteria

1. Plan and prepare for the work
   • Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection
   • Occupational Health and Safety standards, statutory requirements, relevant Australian standards, codes of practice, manufacturer specifications, environmental requirements and enterprise procedures are identified, applied and monitored throughout the work procedure.
   • Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications
   • Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan
   • Work is planned in detail including sequencing and prioritising and considerations made, where appropriate, for the maintenance of plant security and capacity in accordance with system/site requirements
   • Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work
   • Work area is prepared in accordance with work requirements and site procedures
   • Where appropriate, the teams and individuals roles and responsibilities within the team are identified and, where required, assist in the provision of on-the-job training
2. Conduct maintenance on WTG mechanical systems
   • If required, equipment is replaced due to faulty operation or maintenance plan requirements in accordance with manufacturer specifications and site procedures
   • Follow documented service checklists (or similar documentation)
   • Use diagnostic testing and data from monitoring systems to identify those components requiring maintenance
   • If required equipment is dismantled for maintenance in accordance with manufacturer specifications and site procedures.
   • Techniques are used to enable identification and/or re-assembly in accordance with job requirements and site procedures.
   • If required, new components are obtained and inspected for compliance with manufacturer specifications.
   • Equipment is tested, monitored and adjusted as required in accordance with manufacturer specifications and site/enterprise requirements.
3. Complete the work
   • Work is completed and appropriate personnel notified in accordance with site/enterprise requirements
   • Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures
   • Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures
   • Work completion details are finalised in accordance with site/enterprise procedures
   • Lessons learnt from the activity or experience are shared with other team members and recorded for future reference.

Required Skills

This describes the essential skills and knowledge and their level required for this unit All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies
KSPMA	Maintain wind turbine generator mechanical systems
Evidence shall show that knowledge has been acquired of maintaining wind turbine generator mechanical systems to the extent indicated by the following aspects
T Principles of hydraulics Hydraulic safety Hydraulic valves Hydraulic schematics T Oil sampling techniques Sources of oil contamination T Gearbox fundamentals and principles as used in the wind generation industry Planetary gears Helical gears Early signs of gearbox failure Cooling systems Oil heaters T Endoscopic inspection techniques T Grease and oil grades and constituents grease distribution systems and techniques T Backlash cause and effect T Oil pumps filters and breathers T Bearing fundamentals and types used in the wind generation industry T Oil and hydraulic sensors T Blade calibration techniques

Evidence Required

The Evidence Guide forms an integral part of this Unit and shall be used in conjunction with all components parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

Longitudinal competency development approaches to assessment such as Profiling require data to be reliably gathered in a form that can be consistently interpreted over time This approach is best utilised in Apprenticeship programs and reduces assessment intervention It is the industrypreferred model for apprenticeships However where summative or final assessment is used it is to include the application of the competency in the normal work environment or at a minimum the application of the competency in a realistically simulated work environment It is recognised that in some circumstances assessment in part or full can occur outside the workplace However it must be in accordance with industry and regulatory policy Methods chosen for a particular assessment will be influenced by various factors These include the extent of the assessment the most effective locations for the assessment activities to take place access to physical resources additional safety measures that may be required and the critical nature of the competencies being assessed The critical safety nature of working with electricity electrical equipment gas or any other hazardous substancematerial carries risk in deeming a person competent Sources of evidence need to be rich in nature to minimise error in judgment Activities associated with normal everyday work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its richness Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments Sample assessment instruments are included for Assessors in the Assessment Guidelines Section of this Training Package

Critical aspects of evidence required to demonstrate competency in this unit
	Evidence for competence in this unit shall be considered holistically Each element and associated Performance Criteria shall be demonstrated On at least two occasions In accordance with the Assessment Guidelines for the UEP Training Package On at least two (2) occasions. In accordance with the "Assessment Guidelines” for the UEP12 Training Package. Evidence shall also comprise A representative body of work performance demonstrated within the timeframe typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the Performance Criteria and range and Apply sustainable energy principles and practices as specified in the Performance Criteria and range and Demonstrate an understanding of the required skills and knowledge as described in this unit to such an extent that the learners performance outcome is reported in accordance with the preferred approach namely a percentile graded result where required by the regulated environment and Demonstrate an appropriate level of employability skills and Conduct work observing the relevant Anti Discrimination legislation regulations policies and workplace procedures and Demonstrated performance across a representative range of contexts from the prescribed items below
	A	All of the following	Change gearbox oil Sample gearbox oil Check the operating temperature of WTG gearbox Change oil filters and breathers
	B	All of the following	Confirm the correct operation of mechanical sensors through SCADA or similar analysis
	C	All of the following	Read a hydraulic schematic and trace out a hydraulic pathway
	D	All of the following	Confirm and calibrate the blades Confirm and calibrate the positioning sensors
	E	All of the following	Deal with an unplanned event by drawing on essential knowledge and skills to provide appropriate solutions

Context of and specific resources for assessment

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include OHS policy and work procedures and instructions Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this unit These should be used in the formal learningassessment environment Note Where simulation is considered a suitable strategy for assessment conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy The resources used for assessment should reflect current industry practices in relation to Maintain wind turbine generator mechanical systems

Method of assessment

This unit shall be assessed by methods given in the Assessment Guidelines Section of this Training Package Note Competent performance with inherent safe working practices is expected in the Industry to which this competency standard unit applies This requires assessment in a structured environment which is primarily intended for learningassessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit

Concurrent assessment and relationship with other units
	For optimisation of training and assessment effort competency development in this unit may be arranged concurrently with units
	UEPMNTA UEPMNT443A	Maintain wind turbine generator control systems
	UEPMNTA UEPMNT442A	Maintain wind turbine generator electrical systems

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Range Statement

10) This relates to the competency standard unit as a whole providing the range of contexts and conditions to which the Performance Criteria apply. It allows for different work environments and situations that will affect performance. Maintenance tasks on wind turbine generators may include: Climbing equipment, including personnel lifts, climb assist, elevators Winches and Cranes Ladders Hydraulic equipment, gearboxes, yaw and pitch gear, turbine braking equipment. Maintenance may include: visual inspections, replacement of mechanical components, checking the tension of bolts, replacing bearings, replacing seals and o-rings, condition monitoring, lubrication, testing of equipment for correct operation, and lubrication of equipment. Oil sampling techniques Testing includes visual, auditory and olefactory sensing Checking of sensors through SCADA Tools may include spanners, screwdrivers, side cutters, pliers, high torquing wrench, grease pump, endoscopic inspection tools Test equipment may include laser alignment tools, laptop computers, PC tablet, smart phones and other data acquisition tools and equipment. Consumables may include gearbox oils, hydraulic oil, bearing grease, paint, detergents, Loctite Cleaning, including the following equipment and gear: Grease from bearings Oil spills Dust Water Salt Hydraulic schematic diagrams Wind turbine generator range is from 50kW and greater Work completion details may include plant and maintenance records, job cards, check sheets, on device labelling updates and reporting and/or documenting equipment defects. Work site environment may be affected by nearby plant or processes and climatic conditions e.g. wind speed, chemical, heat, dust, noise, height and oil, acid and alkalie spills and vapours. Location of wind turbine generators may be in urban, suburban, regional or rural locales and environments. Isolations can refer to electrical/mechanical or other associated processes. Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in the Glossaries, Section 2.1 of this Training Package.

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