Elements and Performance Criteria
- Plan and prepare for top-hole hammer drilling
- Access, interpret and apply top-hole drilling documentation and ensure the work activity is compliant
- Obtain, read, interpret, clarify and confirm work requirements
- Identify and address potential risks, hazards and environmental issues and implement control measures
- Select and wear personal protective equipment appropriate for work activities
- Communicate and coordinate activities with others throughout the work activity
- Select, and check for faults, tools and equipment to carry out tasks
- Check restraining devices on all pressure hoses
- Fit/replace restraining devices on pressure hoses as required
- Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
- Operate top hole hammer drill
- Carry out pre-start and start up procedures
- Identify, select and apply rig operational controls
- Select appropriate rod type, thread form and drill string components for job
- Measure and select appropriate bit for the job
- Collar hole
- Use rod handling equipment safely and correctly
- Add/break out and remove drill rods/pipes and top hole equipment
- Adjust/feed/rotate drill at right rate for optimum penetration
- Adjust impact pressure and rate to match ground conditions
- Adjust air pressure to achieve required hole clearance
- Measure line string and calculate depth of hole
- Use drilling fluids as required
- Respond to problems
- Monitor operation and chips/sample/air return
- Identify possible problems in equipment or process
- Clear blockages
- Determine other problems and maintenance tasks needing action
- Determine possible fault causes
- Rectify problem using appropriate solution within area of responsibility
- Follow through items initiated until final resolution has occurred
- Report problems outside area of responsibility to designated person
- Complete equipment maintenance and housekeeping
- Carry out shutdown procedures and secure equipment
- Monitor wear
- Check all equipment and hoses
- Replace shanks as required
- Replace/adjust and report damaged/worn parts as required
- Undertake bit sharpening as required
- Grease drifter as required
- Ensure housekeeping activities are completed
- Process records
- Plan and prepare for top-hole hammer drilling
- Access, interpret and apply top-hole drilling documentation and ensure the work activity is compliant
- Obtain, read, interpret, clarify and confirm work requirements
- Identify and address potential risks, hazards and environmental issues and implement control measures
- Select and wear personal protective equipment appropriate for work activities
- Communicate and coordinate activities with others throughout the work activity
- Select, and check for faults, tools and equipment to carry out tasks
- Check restraining devices on all pressure hoses
- Fit/replace restraining devices on pressure hoses as required
- Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
- Operate top hole hammer drill
- Carry out pre-start and start up procedures
- Identify, select and apply rig operational controls
- Select appropriate rod type, thread form and drill string components for job
- Measure and select appropriate bit for the job
- Collar hole
- Use rod handling equipment safely and correctly
- Add/break out and remove drill rods/pipes and top hole equipment
- Adjust/feed/rotate drill at right rate for optimum penetration
- Adjust impact pressure and rate to match ground conditions
- Adjust air pressure to achieve required hole clearance
- Measure line string and calculate depth of hole
- Use drilling fluids as required
- Respond to problems
- Monitor operation and chips/sample/air return
- Identify possible problems in equipment or process
- Clear blockages
- Determine other problems and maintenance tasks needing action
- Determine possible fault causes
- Rectify problem using appropriate solution within area of responsibility
- Follow through items initiated until final resolution has occurred
- Report problems outside area of responsibility to designated person
- Complete equipment maintenance and housekeeping