List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1 | Select concrete polishing equipment | 1.1 | Planetary concrete grinding/polishing equipment and attachments are selected consistent with the needs of the job |
1.2 | Hand edge and corner polishing tools are selected consistent with the needs of the job |
1.3 | Equipment is checked for serviceability and safety and any faults are corrected or processed for repair |
2 | Clean and prepare sub-floor | 2.1 | Applicable work health and safety (WHS), legislative and organisational requirements relevant to polishing concrete floors are followed including selecting, correctly fitting and using personal protective equipment |
2.2 | Fittings, fixtures, loose debris, dirt and other items are removed from the sub-floor |
2.3 | Sub-floor is inspected to determine the need for removal of existing adhesive, paint or other contaminants |
2.4 | Planetary polishing machine, appropriate machine rotation speed, direction and diamond tools are selected for removal of contaminants |
2.5 | Machine is attached to a suitable power supply, emergency stop is released, the machine powered up and contaminants are removed in accordance with manufacturer specifications |
3 | Polish the floor | 3.1 | Machine is attached to a suitable power supply, emergency stop is released, the machine powered up, a passing pattern established and main area is polished to the required standard in accordance with manufacturer specifications |
3.2 | Outer zones are overlapped and passes staggered to achieve desired finish |
3.3 | Machine operation is monitored constantly to ensure motor/motors are running within manufacturer’s safe operational limits and no electrical faults are evident |
3.4 | Perimeter of the designated area is polished using edge and corner polishing equipment and appropriate attachments |
3.5 | Diamond polishing tools are examined for wear and exchanged, when required, throughout the polishing process |
3.6 | Excessive wear of polishing tools is recognised and remedial action taken as required |
3.7 | Floor area is cleaned, inspected and re-worked as required |
4 | Clean up work area and tools | 4.1 | All tools and grinding/polishing equipment are cleaned, maintained and stored |
4.2 | Equipment is cleaned, maintained and stored |
4.3 | Work area is cleared and waste removed |
Comply with legislation, regulations, standards, codes of practice and established safe practices and procedures for operating and maintaining planetary grinding/polishing equipment
Apply safe handling practices for equipment, products and materials
Follow work instructions, operating procedures and inspection practices to:
prevent damage to goods, equipment and products
maintain required production output and product quality
minimise the risk of injury to self and others
Polish a concrete sub-floor using single headed, double headed and planetary action concrete polishing equipment correctly and safely
Complete operator maintenance on concrete polishing equipment
Modify activities to cater for variations in workplace contexts and environment
Communicate ideas and information to enable confirmation of work requirements and specifications and the reporting of faults and problems
Collect and understand information related to the use and maintenance of grinding and polishing equipment
Work with others and in a team by recognising dependencies and using cooperative approaches to optimise work flow and productivity
Use pre-checking and inspection techniques to anticipate polishing problems to avoid re-work and wastage
Recognise and respond to circumstances outside instructions or personal competence
Plan and organise activities, including the preparation and layout of the worksite and the obtaining of tools
Use mathematical ideas and techniques to correctly complete measurements and estimate material requirements
Maintain current knowledge of:
tools and materials
concrete surface polishing techniques
Use workplace technology related to the use and operator maintenance of concrete polishers and associated materials
State or territory WHS legislation, regulations, standards and codes of practice relevant to the use of concrete polishing equipment
Organisational and site standards, requirements, policies and procedures for the use of concrete polishing equipment
Types of concrete polishers and procedures for their safe use, operation and maintenance
Polisher attachments, their uses, limitations and maintenance requirements
Diamond polishing tools, uses and wear factors
Environmental protection requirements
Established communication channels and protocols
Relevant problem identification and resolution
Assessors must:
hold training and assessment competencies as determined by the National Skills Standards Council (NSSC) or its successors
have vocational competency in the furnishing industry at least to the level being assessed with broad industry knowledge and experience, usually combined with a relevant industry qualification
be familiar with the current skills and knowledge used and have relevant, current experience in the furnishing industry.
Assessment methods must confirm consistency of performance over time rather than a single assessment event and in a range of workplace relevant contexts.
Assessment must be by observation of relevant tasks with questioning on underpinning knowledge and, where applicable, multimedia evidence, supervisor’s reports, projects and work samples.
Assessment is to be conducted on single units of competency or in conjunction with other related units of competency. Foundation skills are integral to competent performance in the unit and should not be assessed separately.
Assessment must occur on the job or in a workplace simulated facility with relevant process, equipment, materials, work instructions and deadlines.
Access is required to single, double and planetary action grinders/polishers and hand grinding and edging tools, manufacturer/user instructions and/or manuals, and a defined polishing standard.