Elements and Performance Criteria

RANGE STATEMENT
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.
Micro-mechanisms
Mechanical and electric precision watches and clocks of recent manufacture, or restoration pieces. Includes chronometer timepieces. May include day/date, automatic winding or generating systems. Clock mechanisms may include alarm, striking and chiming mechanisms
Repair/servicing requirements
Repairs and timing adjustments include balance spring, dynamic poising, static poising, truing balance (flat and round)
Repair and adjustment of chronograph mechanisms to ensure correct operation of seconds, minute and hour recording systems
Tools and equipment
Range of precision mechanical/electronic tools and high-tolerance testing equipment for detailed observation diagnosis and servicing. Includes specialist service tools for adjusting oscillating systems and chronograph mechanisms
Precision components
Timekeeping elements, including balance staff, pallet staff, pallet jewels, wheel trains and other precision components
Power source, mechanical oscillating systems, motion work, calendar systems
Specifications
Precision adjustment performed to detailed manufacturer specifications and tolerances
Account made of inherent influences in design, internal and external influences on rating variation
Tests
Observations of high-tolerance clearances, fits and adjustments and functioning
Operation of systems and performance analysis

EVIDENCE GUIDE
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
A person who demonstrates competency in this unit must be able to perform precision micro-mechanism diagnosis and servicing. Competency in this unit cannot be claimed until all prerequisites have been satisfied.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Context of and specific resources for assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with preparing precision micro-mechanism diagnosis and servicing or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning should not require language, literacy and numeracy skills beyond those required in this unit. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Guidance information for assessment