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. |
Relevant compliance documentation may include: | legislative, organisational and site requirements and proceduresmanufacturer's guidelines and specificationsAustralian standardsEmployment and workplace relations legislationEqual Employment Opportunity and Disability Discrimination legislation |
Legislation may include Acts and regulation dealing with: | mining safety and health mine inspectionOHSexplosives |
Machinery and equipment may include: | airleg assembly and accessorieshand heldrising feeddrill steelsbitsraise ladderwater hosesair hoseslubrication devices |
Hand held machine operational checks may include: | checking and testing machine controlsrockdrill chuck wearlubricator and lubricationsecure nuts and boltswater tubesbridle pinssecurity of air and water connectionsinspection of hoses and connectionsoil flow from exhaust outlet |
Personal Protective Equipment may include: | lampsafety helmeteye protectionhearing protection protection from atmospheric contaminants (dust/oil mist)hand protection overalls with reflective stripsafety footwear |
Rockdrill machine faults may include: | drop in penetration rateloss of water or water pressureloss of rotation loss of air or air pressureloss of lubricationloss of gauge on bitclogged air or water tubesbroken water tubewater in airlineairleg problems (e.g. broken crows foot) |
Unusable drill steels may include: | bentbrokenblockedbluntwithout necessary gauge/diameter |
Work area inspections may include: | travel waysfootings/access/retreatfumes or dustventilation air flowground conditions breakthrough locations (if accessible)misfiresservices including firing cablesworkplace explosive storage |
Potential hazards and risks may include: | insufficient illuminationfalling rocks fire/flames/ignition sourcespremature explosionatmospheric contaminantsfaulty equipmentdebrisinsufficient ventilationunauthorised personshigh air or water pressuresbreaking hosesstuck or broken drill steelsdrilling in buttsdrilling into misfires |
Site procedures may include: | pre-start checklock out and tagging proceduresclean upblasting procedures and re-entry timespermit-to-work systemssafety equipmentuse of personal protective equipmentcommunication and reporting proceduresemergency procedures |
Dust suppression and/or extraction equipment may include: | secondary fans (electric or compressed air) and ventilation bagsmobile or fixed spraysventilation doors or other vent devicesair movers and ventilation bagsuse of water truckswatering down sitewash down backs and blasted material |
Conditions may include: | ground conditions(blocky, faulted, secure)floor stability (e.g. broken, blocky, flaky, stable, compacted)slope of working surfaceenvironmental conditions (e.g. hot, noisy, dry, wet)visibility and illumination conditions |