Required skills

Required skills include

obtaining all relevant work instructions and requirements

producing all drawings in accordance with AS Technical drawing General principles or equivalent

obtaining all relevant data sheets and catalogues

calculating required limits fits datum references and geometric tolerances where they are not supplied from designer or reference material

checking drawings for conformance to specification

checking drawings to ensure that assemblyfabrication is possible

reading interpreting and following information on written job instructions specifications standard operating procedures charts lists drawings and other applicable reference documents

planning and sequencing operations

checking and clarifying taskrelated information

undertaking numerical operations geometry and calculationsformulae within the scope of this unit

reading and selecting correct toleranced dimensions to meet the required class of limit or fit as selected by the engineer or other designer from the specifications

applying symbols for

dimensions

dimension origin

reference values

applying tolerance symbols for

datum identification

form

location

profile

runout

modifiers

inserting or calculating geometric tolerances with regard to the roundness straightness flatness concentricity and so on of an engineering component

applying schedules and legends to the drawing

converting between unilateral bilateral and limit of size or direct tolerances

applying tolerances to meet the individual fit classifications between a shaft and hole clearance interference and transition

determining part quantities and material lengths for inclusion in the partsmaterialcutting list

Required knowledge

Required knowledge includes

specifications andor requirements of the component assembly or layout to be drawn

functional operation of the componentassembly to be drawn

surfaces which are to be in contact or separated

appropriate type of fit for contacting surfaces

reasons for selecting the chosen type of fit

calculation methods for determining limits fits datum references and geometric tolerances

effect of surface finish on the performanceoperation of surfaces

all appropriate lineal diametric and geometric tolerances

procedures for determining tolerances

requirements of AS Technical drawing General principles or equivalent for drawings to be produced

specifications of the components materials andor assemblies

appropriate components and materials from suppliermanufacturer catalogues

reasons for selecting the chosen components andor materials

procedures for checking and approving drawings

reasons for checking the drawings to ensure that manufacturingassembly is possible efficient and costeffective

drawing specifications

methods of manufactureassemblyfabrication from drawings

unnecessary or inappropriate tolerances

hazards and control measures associated with performing advanced engineering detail drafting including housekeeping

safe work practices and procedures

engineering features terminology and abbreviations

hatching techniques such as large sections small sections thin sections and designation of materials

sectioning systems such as revolved section removed section local or part section offset section aligned section and interposed section

types of bearings

sectioning conventions such as screw threads shafts and rods webs and thin sections

awareness of copyright and intellectual property issues and legislation in relation to drawing

role of datum points in dimensioning and tolerancing a detail engineering drawing

RFI process for project or enterprise

symbols used for dimensioning

symbols used for tolerancing

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

A person who demonstrates competency in this unit must be able to perform advanced engineering detail drafting techniques to produce assembly sectioned drawings and specialised dimensioning and auxiliary views to AS Technical drawing General principles or equivalent

Critical aspects for assessment and evidence required to demonstrate competency in this unit

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

Specifically the candidate must be able to

work within typical siteteamwork structures and methods

apply worksite communication procedures

comply with organisational policies and procedures including quality requirements

participate in work meetings

comply with quality requirements

use industry terminology

apply appropriate safety procedures

perform required calculations to determine tolerances and fits required to meet design requirements

produce drawings to AS Technical drawing General principles with all components identified

Context of and specific resources for 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

This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with performing advanced engineering detail drafting 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

Equivalent standard

Dimensioning

Tolerancing

Symbols used for tolerancing

Symbols used for dimensioning

Condition

Geometry tolerancing

Assembly drawing types

Information from dimensioned drawing

Drawings

Auxiliary projection