Elements and Performance Criteria

Stream: Production Plant
Field: Maintenance
Equivalencies: This unit of competence incorporates units 10.6a and 18.4a of the
National Metal and Engineering Competency Standards
Crusher types may include impact, ball mills, bowl mills, hammer, jaw crushers, pulverisers, rotary breaker, roller crusher and tines
Details of maintenance may be clarified by diagnosis and work place inspection
Maintenance may include repair, inspection, modification, overhaul, lubrication, servicing and test running
Work completion details may include plant and maintenance records, job cards, check sheets, on device labelling updates and reporting and/or documenting equipment defects
Work site environment may be affected by nearby plant or processes, e.g. chemical, heat, dust, noise, gas and oil
Isolations can refer to electrical/mechanical or other associatedprocesses

Critical aspects of evidence
The knowledge and application of relevant sections of: Occupational, health and safety legislation; Statutory legislation; Enterprise/site safety procedures; Enterprise/site emergency procedures
Preparation and planning of work
Removal techniques
Identifying faults
Conducting in service testing
Maintenance techniques and procedures
Installation techniques and procedures
Completion of work procedures
In service test procedures
Context of assessment
Competency Standards should be assessed in the workplace or simulated workplace and under the normal range of workplace conditions
Assessment of this unit will be supported with documentary evidence, by means of endorsement stating type and application of work
Interdependent assessment of unit
Nil
Knowledge and Skills
A knowledge of:
Occupational health and safety; Crusher types and operating principles; Measuring equipment; Quality assurance/quality control; Engineeringprinciples; Technical drawings and data; Data recording techniques; Hand and portable power tools; Specialised tools and jigs; Levelling and alignment principles; Rigging and lifting techniques; Materials and components; Diagnostic and testing techniques; Torquing techniques; Plant and systems; Balancing procedures; Lubrication systems; Communication principles
The ability to:
Apply occupational health and safety procedures; Identify and use measuring equipment; Use hand and portable power tools; Use and draw sketches, technical drawings and data; Apply data analysis techniques; Select and use specialised tools and jigs; Level and align; Work to precise tolerances; Identify and select materials and components; Apply diagnostic and testing techniques; Test, adjust, replace and overhaul crushers for desired material sizing; Install and remove bearings; Dismantle and reassemble components; Communicate effectively.