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.
Clock origin, case and movement construction and function
Clock origin, case and movement construction and function may include:
clocks from all countries of manufacture
clocks manufactured during the 19th and 20th Centuries
clock cases made from timber, metal, natural stone and composite materials
movement components made from brass and steel
pendulum or balance oscillating systems
timepiece only mechanisms
motive force (e.g. mainspring or weight driven)
gear train for transmitting of power
escapement for release power
oscillator for controlling the speed of release of power
winding (e.g. by key)
time setting (e.g. by key or direct movement of hands)
Clock handover
Clock handover may include:
informing customer of features and characteristics of clock
demonstrating winding and setting procedures for clock
inform customer of operation and switching of any automatic night silent, or shut-off for chiming or striking mechanism
warranty information
date of installation
Record and document repair process
Record and document repair process may include:
extent and date of repair recorded
tracking of subcontractors
cost of replacement parts
time spent on procedure
Appropriate working environment
Appropriate working environment may include:
clean bench and working area
adequate lighting and ventilation
tools and equipment organised and in good condition
ergonomic seating, including bench height
Condition and faults
Condition and faults may include:
originality of components
corrosion
cleanliness
wear
damaged or failed components
Faulty or worn components
Faulty or worn components may include:
barrel and mainspring (e.g. hooking, teeth and bearings)
gear trains (e.g. bearings, pivots and pinions)
pendulum escapements (e.g. pallets and escape wheels engagement drop, locking and impulse)
oscillators pendulum type (e.g. rod, crutch engagement, suspension spring fittings and bob security)
oscillators balance type (e.g. balance spring, balance staff and roller)
winding mechanisms( e.g. key fitting, click, ratchet wheel and click spring)
setting hand tension or centre wheel friction
Hand tools and equipment
Hand tools and equipment may include:
clock repairers' hand tools (e.g. tweezers, screwdrivers and eyeglasses)
clock mainspring winder
clock re-bushing tool
reamers and smoothing broaches
lathe
oilstones and burnishers
movement supports for clock movements
oilers and oil pots
cleaning brushes, peg wood, solutions and rinses e.g. solvents
clock timing machine (this includes any type of machine that provides frequency count or indication of daily rate)
Cleaning and finishing
Cleaning and finishing may include:
hand cleaning
conventional machine (rotational)
ultrasonic
vibrational finishing and polishing
types of clock cleaning solutions
precautions for handling and disposing cleaning solutions
safe practices for the use of polishing equipment
Verify and adjust hand setting tension
Verify and adjust hand setting tension may include:
test for correct friction (e.g. power to escape wheel)
adjustment of motion work friction
Select and apply lubricants
Select and apply lubricants may include:
correct lubricants for escapements, bearings, barrels and mainsprings
techniques for lubricating
Clock assembly inspections and precautions
Clock assembly inspections and precautions may include:
gear train end shake, backlash, lubrication
mainspring engagement, hooking, tension, lubrication
escapement operation, depthing, lubrication
pendulum oscillator (e.g. amplitude, crutch engagement and suspension function)
balance oscillators (e.g. end shake and balance spring condition, correct lubrication)
Performance and design characteristics
Performance and design characteristics may include:
source of motive force
escapement type
oscillator and pendulum construction
Clean and safe work environment
Clean and safe work environment may be specified through:
relevant legislation and regulations
enterprise operating procedures
5S housekeeping related principles and procedures (e.g. sort, straighten, shine, standardise, sustain)

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 service and repair clock timepieces to industry standards, manufacturer specifications and in accordance with safety regulations and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently:
dismantle and reassemble clock movement and components
safely remove and replace clock mainsprings
repair and re-finish worn arbor pivots
re-centre and replace worn bearings (re-bushing)
safely clean clock components using appropriate methods and media
apply lubrication techniques (e.g. correct type and amount)
perform function and performance testing (e.g. adjust escapements, beat error and rate).
Context of and specific resources for assessment
Assessment may occur on the job or in a simulated working environment. Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and information on workplace practices and OHS practices.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.
Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.
Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.
Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.
Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.
Assessment may be in conjunction with assessment of other units of competency where required.
Guidance information for assessment
Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.