Unit of competency details

Unit descriptor 

This unit covers assessing task requirements; preparing materials; undertaking the repair, replacement or modification of the fabrication; cleaning and finishing to specifications; and inspecting the result.

Application of the unit 

This unit requires an integrated level of skills in fabrication maintenance and repair. This unit is intended to build on skills covered by the specialist prerequisites. Processes may involve the simple mark out of materials, and the setting up and operation of a variety of welding and cutting plant/equipment. If individual skills are required, relevant specialist units only should be selected.

Where additional or more complex marking out skills are required, refer to Unit MEM12007D (Mark off/out structural fabrications and shapes). If machines and equipment for forming, bending or shaping are required, Unit MEM05010C (Apply fabrication, forming and shaping techniques) should also be selected.

Band : A 

Unit Weight : 4 

Prerequisite units 

Path 1 

MEM05005B

Carry out mechanical cutting

MEM05007C

Perform manual heating and thermal cutting

MEM05011D

Assemble fabricated components

MEM05012C

Perform routine manual metal arc welding

MEM05015D

Weld using manual metal arc welding process

MEM05051A

Select welding processes

MEM05052A

Apply safe welding practices

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

MEM18002B

Use power tools/hand held operations

Path 2 

MEM05005B

Carry out mechanical cutting

MEM05007C

Perform manual heating and thermal cutting

MEM05011D

Assemble fabricated components

MEM05017D

Weld using gas metal arc welding process

MEM05050B

Perform routine gas metal arc welding

MEM05051A

Select welding processes

MEM05052A

Apply safe welding practices

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

MEM18002B

Use power tools/hand held operations

Path 3 

MEM05004C

Perform routine oxy acetylene welding

MEM05005B

Carry out mechanical cutting

MEM05007C

Perform manual heating and thermal cutting

MEM05011D

Assemble fabricated components

MEM05022C

Perform advanced welding using oxy acetylene welding process

MEM05051A

Select welding processes

MEM05052A

Apply safe welding practices

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

MEM18002B

Use power tools/hand held operations

Path 4 

MEM05005B

Carry out mechanical cutting

MEM05007C

Perform manual heating and thermal cutting

MEM05011D

Assemble fabricated components

MEM05019D

Weld using gas tungsten arc welding process

MEM05049B

Perform routine gas tungsten arc welding

MEM05051A

Select welding processes

MEM05052A

Apply safe welding practices

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

MEM18002B

Use power tools/hand held operations

Employability skills 

This unit contains employability skills.

Elements describe the essential outcomes of a unit of competency.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide.

ELEMENT 

PERFORMANCE CRITERIA 

1. Assess and process repair, replacement, modification requirement

1.1. Work requirements are determined from job sheet, instruction or visual inspection.

1.2. Specifications and drawings are obtained and interpreted where required.

1.3. Fabrication is inspected and suitability for repair/replacement/modification determined.

2. Assess and process material requirements

2.1. Material requirements are assessed in accordance with relevant codes, manufacturers' specifications and standard operating procedures.

2.2. Materials are obtained/requisitioned according to standard operating procedures.

2.3. Tool and equipment requirements are assessed and obtained, where required, according to standard operating procedures.

3. Prepare materials

3.1. Fabrication for repair/replacement and/or modification is prepared to specification using acceptable workplace practices, tools and equipment.

3.2. Materials are marked out and prepared to specifications with minimum wastage using correct principles, tools, equipment and procedures.

3.3. Materials are cut, bent, rolled, shaped or formed to specifications using appropriate fabrication techniques/procedures, tools and equipment.

3.4. Where required, items are marked for identification.

4. Repair, replace or modify fabrication

4.1. Using suitable clamping methods, equipment, jigs and fixtures, materials are positioned/clamped for welding.

4.2. Pre-tack checks are undertaken and compliance with specifications is determined prior to tack welding in position.

4.3. Welding equipment is prepared and settings are adjusted according to requirements.

4.4. Immediate work site environment is checked to ensure compliance with safety requirements and procedures.

4.5. Material or item is tack welded using appropriate distortion minimisation techniques and procedures.

4.6. Material or item is checked against specifications prior to welding.

4.7. Material or item is welded to specifications using techniques and procedures appropriate to job requirements.

5. Finish and inspect repair, replacements and/or modification

5.1. Repair, replacement and/or modification is cleaned and finished to specifications using appropriate workplace practices.

5.2. Welds are visually inspected to assess weld quality against predetermined specifications.

5.3. Completed repair, replacement and/or modification is assessed against specifications.

5.4. Maintenance report is prepared and lodged according to standard operating procedures.

REQUIRED SKILLS AND KNOWLEDGE 

This section describes the skills and knowledge required for this unit.

Required skills 

Look for evidence that confirms skills in:

• visually inspecting fabrication for defects, faults, and compliance
• marking out
• minimising wastage of materials
• cutting, bending, rolling, shaping or forming materials
• positioning and clamping materials for welding
• undertaking pre-welding/tacking checks
• setting up and adjusting welding equipment
• tack welding
• welding according to all relevant codes, and specifications
• cleaning and finishing materials/fabrication
• reading and interpreting job sheets, specifications, drawings, standard operating procedures, manufacturer documentation and other literature to the level required by this unit
• assessing material and equipment requirements
• using measuring skills for preparing and marking out materials and for checking modification against specifications
• completing short reports using relevant terminology and format

Required knowledge 

Look for evidence that confirms knowledge of:

• applicable industry standards, national/Australian standards, NOHSC guidelines, State/Territory regulatory codes of practice/standards
• characteristics of faults, defects and or non-compliance
• means of rectifying faults, defects and/or non-compliance by rework or additional work, or by replacement of components/materials
• effects of proposed modifications on the fabrication
• reasons for selection of specific materials, tools, equipment and consumables
• marking out principles, techniques
• material preparation processes
• clamping method(s) for the welds undertaken.
• location of all materials to be welded
• weld specifications
• equipment, consumables and settings required to achieve the weld specification
• distortion minimisation procedures and methods for rectifying any distortion of materials
• material cleaning and finishing processes for the repair/replacement/modification
• reporting requirements
• use and application of personal protective equipment
• safe work practices and procedures
• hazards and hazard control measures associated with repairing, replacing or modifying fabrications

EVIDENCE GUIDE 

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 integrate skills in fabrication maintenance and repair/replace/modify fabrications. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

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.

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 repairing, replacing or modifying fabrications, 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, supervisor's 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.

Guidance information for assessment 

RANGE STATEMENT 

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Fabrication inspected 

Determine defects/faults, non-compliance with specifications, repair/replacement/modification

Marked out 

Marking out principles, techniques

Marked for identification 

To undergo repair, replacement and/or modification, to be cut, bent, rolled, shaped or formed to specifications

Clamping methods 

Automatic, semi-automatic, manual methods

Welding equipment 

MMAW, GMAW, GTAW

Unit sector 

Co-requisite units 

Competency field 

Fabrication