Modification History
Not applicable.
Unit Descriptor
Unit Descriptor |
1) Scope: |
1.1) Descriptor |
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This unit deals with the skills and knowledge required to undertake fault finding, diagnosis, repair and/or overhaul of mechanical valves, but excluding any associated servo or actuating unit. |
Application of the Unit
Application of the Unit |
2) |
This unit is intended to augment formally acquired competencies. It is suitable for employment-based programs under an approved contract of training. |
Licensing/Regulatory Information
License to practice |
3) |
The skills and knowledge described in this unit do not require a licence to practise in the workplace. However, practice in this unit is subject to regulations directly related to Occupational Health and Safety and where applicable contracts of training such as apprenticeships and the like. |
Pre-Requisites
Prerequisite Unit(s) |
4) |
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Competencies |
4.1) |
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Granting of competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed. Where pre-requisite pathways have been identified. All competencies in the Common Unit Group must be have been completed. Common Unit Group |
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Unit Code |
Unit Title |
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MEM18006C |
Repair and fit engineering components |
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MEM09002B |
Interpret technical drawing |
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MEM12023A |
Perform Engineering Measurements |
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MEM18001C |
Use hand tools |
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MEM18002B |
Use power tools/hand held operations |
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MEM18003C |
Use power tools/hand held operations |
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MEM18055B |
Dismantle, replace and assemble engineering components |
Literacy and numeracy skills |
4.2) |
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Participants are best equipped to achieve this unit if they have reading, writing and numeracy skills indicated by the following levels. A description of what each level entails is provided in Section 2.3.1 Language, Literacy and Numeracy. |
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Reading |
3 |
Writing |
3 |
Numeracy |
3 |
Employability Skills Information
Employability Skills |
5) |
The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements. |
Elements and Performance Criteria Pre-Content
6) Elements describe the essential outcomes of a competency standard unit |
Performance Criteria describe the required performance needed to demonstrate achievement of the element. Assessment of performance is to be consistent with the Evidence Guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
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1 |
Plan and prepare for the work |
1.1 |
Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection |
1.2 |
Occupational Health and Safety standards, statutory requirements, relevant Australian standards, codes of practice, manufacturers’ specifications, environmental requirements and enterprise procedures are identified, applied and monitored throughout the work procedure |
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1.3 |
Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications |
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1.4 |
Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan |
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1.5 |
Correct size, type and quantity of materials/components are determined, obtained and inspected for compliance with the job specifications |
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1.6 |
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 |
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1.7 |
Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work |
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1.8 |
Potential hazards are identified and prevention and/or control measures are selected in accordance with the work plan and site procedures |
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1.9 |
Work area is prepared in accordance with work requirements and site procedures |
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1.10 |
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 |
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2 |
Remove valves for maintenance |
2.1 |
Required isolations are confirmed where appropriate in accordance with site requirements |
2.2 |
Valve is disconnected in accordance with the work plan |
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2.3 |
Valve is removed in a manner which will assist in replacement in accordance with the work plan |
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2.4 |
Valve is inspected for abnormalities in accordance with the work plan. |
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3 |
Perform valve maintenance |
3.1 |
Maintenance is performed in accordance with manufacturers specifications and the work plan |
3.2 |
Valve is dismantled, clearly marked for identification and relevant sketches drawn in accordance with the work plan |
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3.3 |
Components are correlated in preparation for re-assembly in accordance with manufacturer drawings/manuals |
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3.4 |
New components are inspected to ensure compliance with manufacturer specifications |
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3.5 |
Dimensional inspection is performed with precision measuring devices to ensure compliance with manufacturer specifications and site requirements |
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3.6 |
Components are reassembled for testing in accordance with manufacturer specifications and site requirements |
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3.7 |
Modifications/alterations are undertaken in accordance with manufacturer specifications and site requirements |
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3.8 |
Components are levelled, aligned, coupled and connected in accordance with manufacturer specifications and site requirements |
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3.9 |
Valves are pressure tested, monitored and adjusted if required in accordance with manufacturer specifications and the work plan |
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4 |
Replace/install valves |
4.1 |
Site is prepared for valve replacement in accordance with the work plan |
4.2 |
Valve is replaced in accordance with the work plan and manufacturer specifications |
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4.3 |
Valve is connected in accordance with the work plan and manufacturer specifications |
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4.4 |
Final job inspection is completed and any permits relinquished in accordance with the work plan |
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5 |
Complete the work |
5.1 |
Work is completed and appropriate personnel notified in accordance with site/enterprise requirements |
5.2 |
Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures |
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5.3 |
Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures |
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5.4 |
Work completion details are finalised in accordance with site/enterprise procedures |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
8) This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of maintaining mechanical valves. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-PM303B Mechanical valves T1 Evidence shall show that knowledge has been acquired for safe working practices of:
T2 Specific skills needed to achieve the Performance Criteria:
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Evidence Guide
EVIDENCE GUIDE |
9) This provides essential advice for assessment of the competency standard unit and must be read in conjunction with the Performance Criteria and the range statement of the competency standard unit and the Training Package Assessment Guidelines. 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 |
9.1) |
Longitude 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 Industry preferred 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 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 accord 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 substance/material carries risk in deeming a person competent. Hence, sources of evidence need to be ‘rich’ in nature so as to minimise error in judgment. Activities associated with normal every day 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 in the Assessment Guidelines of this Training Package. |
Critical aspects of evidence required to demonstrate competency in this unit |
9.2) |
Before the critical aspects of evidence are considered all pre-requisites shall be met. 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 – UEP12”. Evidence shall also comprise:
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Context of and specific resources for assessment |
9.3) |
This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:
Competency Standards should be assessed in the workplace or simulated workplace and under the normal range of workplace conditions. Assessment of this unit will be supported with documentary evidence, by means of endorsement stating type and application of work. In addition to the resources listed above in Context of assessment’, evidence should show competency working, in limited spaces, with different types of plant and equipment as well as different structural/construction types and method and in a variety of environments. |
Method of assessment |
9.4) |
This unit shall be assessed by methods given in Section 1.3.00 Assessment Guidelines. Note: Competent performance with inherent safe working practices is expected in the Industry to which this unit applies. This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learning/assessment 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 |
9.5) |
There are no recommended concurrent assessments with this unit, however in some cases efficiencies may be gained in terms of learning and assessment effort being concurrently managed with allied competency standard units where listed. Nil |
Range Statement
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. Valves may include high and low pressure and temperature valves that are flanged and bolted; dampers and hydro regulating valves; gate; globe; wafer; uni-flow; plug; ball; knife; rotary; piston (ported); diaphragm; non-return; pinch; pressure relief; regulating; isolating; slide dampers; isolating and regulating blade dampers; gas regulating or isolating dampers; hydro turbine guide vanes; and shutters. Precision measuring devices may include inside/outside micrometers, verniers, engineer’s rule, dial gauges, depth gauges and feeler gauges. Testing may include pressure testing (hydraulic and vacuum), blue check. Valve may control solutions which may include gases; solids; and fluids and chemicals such as caustic soda, chlorine, ammonia, sulphuric acid, sodium hypochlorite, hydrazine, diethylamine, citric acid, hydrofluoric acid, ammonium molydate, trisodium phosphate, hydrogen, nitrogen, carbon dioxide, water, fly-ash, slurry, compressed air, brine, oil, steam (superheated and saturated), hydrogen, propane and carbon dioxide. Valve drives may include electrical, mechanical, pneumatic, hydraulic or manual. 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, e.g. chemical, heat, dust, noise, gas and oil. Generic terms are used throughout this Training Package for vocational standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms are given in Section 2.1.00 Preliminary Information and Glossaries. |
Unit Sector(s)
Not applicable.
Competency Field
Competency Field |
11) |
Maintenance |