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Elements and Performance Criteria
Required Skills
Evidence Required
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. Add any 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.Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.ContextThis competency applies to rotomoulding systems, including fixed spindle, single spindle, multiple spindle and shuttle, swing and carousel type machines. It includes the operation of all relevant additional equipment where that equipment is integral to the rotational moulding process.ProceduresAll operations are performed in accordance with procedures.Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards. Tools and equipmentThis competency includes use of equipment and tools such as:hand tools used in the rotational moulding processmaterial loading equipment used for loading of raw materials relevant personal protective equipment.HazardsTypical hazards include:noise, light, energy sources manual handlinghumidity, air temperatures, radiant heat, hot moulds stationary and moving machinery, parts and components.Problems'Anticipate and solve problems' means resolve a wide range of routine and non-routine problems, using product and process knowledge to develop solutions to problems which do not have a known solution/a solution recorded in the procedures.Typical process and product problems may include:routine and non-routine product rotational moulding faults machine malfunctionmould/tooling problemsvariations in materials and/or contamination of materials processing problems.Causes of faultsCauses of faults include:short mouldings sink marks voids burn marks mica splash marks warping silver streaking blistering flow marks poor surface finish windows erratic cycles poor colour dispersion rotation damage colour contamination black spots incorrect quantity of materials contaminated materials.VariablesKey variables to be monitored include:cycle time according to external temperatures and humidity operating temperaturestype of heating used cooling timespeed of rotation/movement pattern of movementcolour of productproduct integrity and general conformance to specification/sample.