Elements and Performance Criteria

Relevant compliance documentation may include:
legislative, organisational and site requirements and procedures
manufacturer’s guidelines and specifications
Australian standards
code of practice
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Work instructions may come from briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:
nature and scope of tasks
specifications
quality of finished works
achieved targets
operational conditions
obtaining of required permits
site layout
out of bounds areas
worksite inspection requirements
lighting conditions
plant of equipment defects
coordination requirements or issues
contamination control requirements
environmental control requirements
barricade and signage requirements
Hazards may include:
working in proximity to drilling rig
injuries to fingers, hands and back
incorrect speed of operation
inadequate maintenance
heat, dust, fatigue, dehydration
high pressure air discharge
leakage of couplings
flailing components
flailing couplings
fire
rock fall
void ground
Coordination requirements may include:
other equipment operators
maintenance personnel
supervisors
site personnel
Tools and equipment may include:
drill rods and drill pipe including:
conventional drill pipe
API threads
BECO threads
thread protectors
drill bits including:
DTH hammer concave, convex and flat face bits
rod handling equipment:
manual handling
mechanised rod handlers
hydraulic pipe/rod/clamps
hydraulic pipe/rod/spinner
make and break:
stillsons
hydraulic tongs
pipe wrenches
pipe/rod spinners
hydraulic make/break devices
make up torque requirements
bit break out plates
Driller’s duties may include:
using correct rod to hole diameters
selecting best bit configuration for ground and hole conditions
maintaining correct rotation speed and weight on bit for optimum penetration
calculating line string and hole depth
using correct combination of air volume and pressure to suit drilling conditions
monitoring collection, splitting and bagging of samples
ensuring all equipment is kept clean and stored correctly
ensuring principles of good housekeeping are followed
measuring bit diameters
Restraining devices may include:
internal/external whip checks
full ‘sock’ whip checks
anchor points
hose fittings
Fluids may include:
dust control additives
water
Sample and sampling tasks may include:
air core samples
DTH samples
Maintenance tasks may include:
sharpening button bits, cross bits
using grinders, bit sharpening machines
line string components (e.g. drill rods, subs, stabilisers, couplings, air swivels)
drill bits

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for down-hole hammer drilling
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of down-hole hammer drilling
working with others to undertake and complete the conduct of down-hole hammer drilling that meets all of the required outcomes
consistent timely completion of down-hole hammer drilling that safely, effectively and efficiently meets the required outcomes
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment. Selection and use of resources for particular worksites may differ due to the site circumstances.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate’s required knowledge
observed, documented and/or first hand testimonial evidence of the candidate’s:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes
consistent achievement of required outcomes
first hand testimonial evidence of the candidate’s:
working with others to undertake and complete the conduct of down-hole hammer drilling
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.