Elements and Performance Criteria

Stream: Production Plant
Field: Maintenance
Equivalencies: This unit of competence incorporates unit 5.20a of the National Metal and
Engineering Competency Standards
Welding equipment may include TIG welder, leads, argon, tungsten tips and filler rods
Materials may include mild steel, stainless steel, aluminium, high and low carbon steels, high and low alloy steels in the appropriate profile, i.e. angle, plate, pipe and channel
Distortion prevention measures may include bracing, pre-setting, tacking, bolting and clamping
Appropriate tools may include wire brush and angle grinder
Non-destructive testing may include visual inspection, dye check, magnetic particle, pressure test and ultra sound
Maintenance may refer to replacing tips and gas nozzles and cleaning tips, nozzles and welders
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
Isolations can refer to electrical/mechanical or other associated processes

Critical aspects of evidence
The knowledge and application of relevant sections of: Occupational, health and safety legislation; Statutory legislation; Enterprise/site safety procedures; Enterprise/site emergency procedures
Preparation and planning of work
Welding techniques and procedures
Relevant standards and procedures
Completion of work procedures
Context of assessment
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
Interdependent assessment of unit
Nil
Knowledge and Skills
A knowledge of:
Occupational health and safety standards; Relevant Australian standards; Basic metallurgy; Hand and portable power tools; Welding and heating techniques; GTAW consumables; Weld and material preparation techniques; Distortion control techniques; Welding jigs; Weld testing techniques; Fabrication and assembly techniques; Hazardous fumes and gases; Materials and their various profiles; Welding and heating equipment and its basic maintenance; Welding symbols; Communication principles
The ability to:
Apply occupational health and safety standards; Apply relevant Australian standards; Use welding, cutting and heating equipment; Maintain welding and heating equipment; Use hand and portable power tools; Use and update drawings, manuals and plans; Select materials; Apply relevant standards; Control distortion; Inspect and identify defects in welds; Inspect and finalise job; Utilise jigs and templates; Communicate effectively.