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Elements and Performance Criteria

1. Identify scope of repair and/or fit required
   • Operational specifications for components are obtained from appropriate source and are interpreted and understood.
   • Operation and condition of components are assessed against specifications.
   • Faulty/worn components are identified.
   • Causes of faults are determined using appropriate engineering principles, techniques, procedures, tools and equipment.
   • Repair, replacement, adjustment or manufacture requirements are determined.
2. Repair/replace faulty components
   • Where applicable, appropriate method of repair is determined.
   • Where applicable, faulty components are repaired or adjusted to conform to specifications.
   • Where applicable, replacement parts are selected from manufacturers' catalogues and assessed against specifications.
3. Manufacture parts/components
   • Parts/component specifications are determined from appropriate source.
   • Materials are selected to meet specification requirements.
   • New components are produced in conformance to specifications using appropriate workshop practices.
   • Completed components are inspected for compliance with dimensions.
   • Where appropriate, component parts are marked for identification prior to assembly.
4. Fit engineering components into assemblies or subassemblies
   • Fitting requirements and sequence of assembly are determined.
   • Appropriate fitting principles and techniques are applied in the preparation and assembly of component parts using fastening equipment and methods which ensures conformance to specifications, operational performance, quality and safety.
   • Using acceptable engineering practices, correct gland packing, jointing/gasket materials are selected and applied correctly in conformance to specifications and operational requirements.
   • Correct lubrication requirements are determined by appropriate means and attended to where applicable.
   • Final adjustments are performed on component assembly to meet operational specifications using acceptable engineering principles, fitting techniques and procedures.
5. Check operation of repaired components/unit
   • Components/unit are checked under operational conditions for compliance to operational specifications using acceptable engineering principles to standard operating procedures.
   • Out of specification modification/alterations are approved by appropriate authority and are recorded and documented to standard operating procedures.
   • Final component assembly is commissioned and returned to service according to standard operating procedures.

Required Skills

Evidence Required

The evidence guide specifies the evidence required to demonstrate achievement in the unit of competency as a whole It must be read in conjunction with the unit descriptor performance criteria range statement and the assessment guidelines for the Metal and Engineering Training Package
Overview of assessment requirements	A person who demonstrates competency in this unit must be able to repair and fit engineering components Competency in this unit cannot be claimed until all prerequisites have been satisfied
Context of assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate
Interdependent assessment	This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with repairing and fitting engineering components or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Consistency of performance	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Required skills	Look for evidence that confirms skills in
	obtaining operational specifications for the components
	assessing operation against specification and identifying faults
	checking components visually and dimensionally against the operational specifications using work site procedures
	checking repaired components visually and dimensionally for conformance to specifications
	adjusting components to achieve conformance to specifications where appropriate
	selecting replacement parts which conform to specifications
	preparing and assembling components using appropriate fitting techniques and principles
	where appropriate applying gland packing jointing or gasket materials using acceptable engineering practices
	applying appropriate lubricants to the assembly using acceptable engineering practices where required
	checking components for conformance to specification
	where appropriate adjusting components to achieve conformance to specifications
	where appropriate recording any approved modificationsalterations to work site procedures
	inspecting the final assembly and checking conformance to operational specifications
	where appropriate returning the final assembly to service in accordance with work site procedures
	reading interpreting and following information on written job instructions specifications standard operating procedures charts lists drawings and other applicable reference documents
	undertaking numerical operations geometry and calculationsformulae within the scope of this unit
Required knowledge	Look for evidence that confirms knowledge of
	tools and equipment to be used to dismantle the components
	consequences of having components that do not comply with operational specifications
	the types of adjustment applicable to the components being repairedfitted
	appropriate methods of repair
	the features andor dimensions upon which replacement parts are to be selected
	the process of identifying replacement parts from third party suppliers catalogues
	the material properties required
	the manufacturing operations to be used in the production of new components
	the sequence of operations to be used in the production of new components
	the fitting requirements for assembling components
	the appropriate sequence of assembly tasks
	the purpose of using gland packing jointing or gasket materials
	the reasons for selecting particular jointing or packing materials
	the applications of different types of lubricants the consequences of using inappropriate or no lubricant
	the need to have approval for out of specification modifications
	the reasons for documenting out of specification modifications
	return to service procedures
	the consequences of not following work site return to service procedures
	hazard and control measures associated with repairing and fitting engineering components including housekeeping
	safe work practices and procedures

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Range Statement

The range statement provides information about the context in which the unit of competency is carried out. The variables and scope cater for different work requirements, work practices and knowledge between States, Territories and the Commonwealth, and between organisations and workplaces. The range statement relates to the unit as a whole and provides a focus for assessment. Text in italics in the performance criteria is explained here. The following variables may be present and may include, but are not limited to, the examples listed under the scope. All work is undertaken to relevant legislative requirements, where applicable
Variable	Scope
Manufacturers' catalogue	Any appropriate manufacturers' catalogues that contain replacement parts that conform with specifications and operational requirements
Appropriate workshop practices	Include drilling, scraping, filing, reaming, tapping, threading etc.
Fitting principles and techniques	Limits of tolerance Allowances and clearances Effects of wear, stress, temperature Types of fits - clearance transition interference Press fitting methods Force fits Shrink and freeze (expansion) fits Keyed fits Taper fits Lateral and radial forces Backlash Configuration and mating of parts Applied use of precision tools and measuring equipment Engineering components - shafts, single and multi throw crankshafts, cams and journals, bearings and bearing surfaces, keys Squareness, roundness, concentricity, flatness, straightness, surface finish, angular correctness Datum and centrelines Tapping, reaming, broaching

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