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Elements and Performance Criteria
Performance Evidence
Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:
locates and applies relevant documentation, policies and proceduresimplements the requirements, procedures and techniques for the safe, effective and efficient completion of air drilling including:applying prescribed thread form torque parameters during make-up of down hole equipment and consumablesapplying correct internal and external calipers, vernier, rule and or tape measure for identification of drill pipe/rod diameter wear limits, measurement of bits/shrouds and other down hole equipmentapplying correct measurement of drill string lengthapplying methods for calculating hole depthworks effectively with others to undertake and complete air drilling tasks that meets all of the required outcomes including:complying with written and verbal reporting requirements and procedurescommunicating clearly and concisely with others to receive and clarify work instructionscommunicating clearly and concisely with others to resolve coordination requirements prior to commencing and during work activitiesdemonstrates completion of the conduction of air drilling that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:fitting/replacingg must demonstrate knowledge restraining devicesensure mounting and security of cyclone is adequate for safe operation, particularly when down hole water may result in release of energymaintaining dust suppression systems to ensure minimal emission of airborne dust and integrity of sample qualityselecting and using appropriate drill rod and drill string components given hole specification and anticipated ground conditionsdrilling/open-up hole collar as required to suit given ground conditions and hole specificationinstalling drill hole collar casing and seal at the hole collar monitoring and adjusting air pressure and other drilling parameters to achieve maximum performancemonitoring and controlling down hole water conditions to ensure integrity of the hole, drill cuttings and sample qualitymonitoring and controlling discharge from outside hole return collar devicecalculating depth of holeselecting appropriate drilling additives to suit ground conditionspreparation of required drilling additivesselecting and checking sample devices to ensure client sample quantity and quality specifications are metmonitoring splitting, bagging, presentation, and marking of samples to ensure client specifications are metsupervising drill crew and ensuring all sampling tasks are carried out correctly and safely
Knowledge Evidence