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 striking mechanisms 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 clocks with count wheel striking mechanisms

dismantle and reassemble clocks with rack striking mechanisms

perform operation and performance testing of striking clocks

adjust striking clock mechanisms for correct operation and synchronisation with hands and sound generation and tonality

apply lubrication techniques (e.g. correct type and amount)

diagnose faults relating to strike mechanisms.

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.

Required skills

Required skills include:

identifying country of origin with respect to count wheel striking

identifying various mechanical striking clocks by features (e.g. count wheel or rack)

dismantling and reassembling striking clock assemblies and components

identifying and rectifying wear and faults in striking mechanisms

ensuring correct alignment of detents in striking mechanism and adjustment of function

lubrication, including selecting and applying correct amount, type, cleanliness and point of application

Required knowledge

Required knowledge includes:

types of clock striking systems

difference between designs from various manufacturers

application of gong rods, bells and hammers to achieve correct resonant sound generation

fault-finding techniques for ensuring strike does not impact on clock operation

dismantling and reassembling techniques for striking mechanisms

occupational health and safety (OHS) regulations and procedures

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.

Function and type of striking mechanism

Function and type of striking mechanism may include:

motive force (e.g. mainspring or weight driven )

gear train (e.g. transmits power)

ways of producing striking sound (e.g. metal gongs, chime rods, bells and air bellows)

count wheel striking movements (e.g. European and American manufacture)

rack striking movements (e.g. European and American manufacture )

Record and document repair process

Record and document repair process may include:

date and extent of repair

cost of replacement parts

time spent on procedure

Operation of strike mechanism

Operation of strike mechanism may include:

hour struck corresponds with hands

release mechanism synchronised with hands

warning set-up correctly

function of release mechanism

sound generation (e.g. gongs, rods and hammer engagement)

Striking mechanism components

Striking mechanism components may include:

release mechanism

gathering pallet

detents

counting mechanism (e.g. snail and count wheel)

rack

gongs, chime rods and bells

hammers

Faults in striking mechanismcomponents

Faults in striking mechanism components may include:

incorrect striking

continuous striking

striking mechanism stops clock or impacts on timekeeping

warning set-up

gong security

pin security

gathering pallet engagement with rack teeth, tightness and positioning

rack tail engagement position with snail

hammer inserts (e.g. condition - worn or aged)

security of gongs, rods and attachment to case

Correct set-up

Correct set-up may include:

synchronised strike release with hands

amount of warning

correct sequence

sound of strike

Lubricants to striking mechanismcomponents

Lubricants to striking mechanism components may include:

correct lubricants for cams and detents

techniques for lubricating

Hand and bench tools and equipment

Hand and bench tools and equipment may include:

clock repairers' hand tools (e.g. tweezers, screwdrivers and eyeglass)

universal shifter, sockets and spanners

pliers, end cutters and files

stakes for supporting removal or replacement of gathering pallet and cannon pinions

oilers and oil pots and greases

hand cleaning (e.g. pith, peg wood and rodico solvents jar)

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

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)