Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM21017A Mapping and Delivery Guide
Service and repair clock timepieces

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM21017A - Service and repair clock timepieces
Description This unit of competency covers servicing techniques for wall, floor or shelf clock timepieces that have a running time of eight days or thirty hours.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit of competency applies to clock repair work undertaken in clock service workshops. The unit does not cover servicing and repairs to complex clocks (e.g. clocks which are fitted with rack or count wheel striking mechanisms, complex escapements or oscillating mechanisms, rack or count wheel striking mechanisms, or clock chiming mechanisms). Where servicing or repairs are to be undertaken on these clocks or components appropriate higher level metal and engineering units should be selected.If after service and repair the clock is to be installed at the client's premises, MEM21016A Install and set up clocks, should be selected.Band: AUnit weight: 6 points
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Establish servicing requirements and liaise with customer
  • Identify clock origin and case and movement construction and function
  • Verify clock condition and performance concerns with customer
  • Prepare written and verbal quotations
  • Agree with customer on recommended service procedures
  • Prepare clock for handover
  • Record and document repair process
  • Source replacement parts from industry suppliers
       
Element: Disassemble clock, case and movement components for servicing
  • Establish appropriate working environment
  • Remove clock movements in sequence considering case design and construction
  • Select and correctly use appropriate hand and bench tools
  • Verify condition and completeness of clock case
  • Perform power release safely
  • Dismantle clock movement in correct sequence
       
Element: Service and repair movement, sub-assemblies and components
  • Inspect movement, sub-assemblies and components, and identify condition and faults
  • Confirm servicing and repair requirements
  • Replace or repair faulty or worn component parts, movement or sub-assemblies
  • Use hand tools and equipment correctly for servicing and repair
  • Clean clock components at appropriate stages using cleaning and finishing methods
  • Verify condition of components after cleaning
       
Element: Service clock cases
  • Verify completeness of clock case
  • Repair and replace missing or damaged components
  • Clean internals and refinish/refurbish exterior with appropriate materials and techniques
       
Element: Reassemble clock movement and case components
  • Reassemble clock movement and case components
  • Assemble motion work and verify and adjust hand setting tension
  • Check and adjust component operations and clock functioning
  • Select and apply lubricants according to component design and estimated frictional load
  • Apply clock assembly inspections and precautions
  • Install and secure movement in case
       
Element: Bench test and adjust clock functions
  • Verify/confirm function of clock movement
  • Set up, operate mechanical clock timing machine and interpret readings correctly
  • Verify clock performance and rate testing
  • Adjust rate according to performance and design characteristics
       
Element: Apply industry workshop standards to perform work
  • Use hand tools and equipment safely and correctly
  • Handle components without damaging or marking
  • Establish a clean and safe work environment
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Required skills include:

identifying country of origin

identifying various mechanical clocks by features, escapement and oscillator

dismantling and reassembling clock assemblies and movements

identifying and rectifying wear and faults in escapement, bearings, arbors, wheels and pinions

replacing or repairing broken or damaged components

safe handling of clock mainsprings, including using mainspring handling equipment

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

using service equipment (e.g. timing machine, cleaning machine, bushing tool, lathe

determining and calculating train counts, such as vibrations per hour (VPH)

Required knowledge

Required knowledge includes:

types of mechanical clocks by country of origin, function, escapement, quality

function and operating principles of mechanical clocks

dismantling and reassembling techniques of clock movements according to procedures and manufacturer guidelines

clock cleaning methods

procurement of replacement clock parts

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.

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)

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Identify clock origin and case and movement construction and function 
Verify clock condition and performance concerns with customer 
Prepare written and verbal quotations 
Agree with customer on recommended service procedures 
Prepare clock for handover 
Record and document repair process 
Source replacement parts from industry suppliers 
Establish appropriate working environment 
Remove clock movements in sequence considering case design and construction 
Select and correctly use appropriate hand and bench tools 
Verify condition and completeness of clock case 
Perform power release safely 
Dismantle clock movement in correct sequence 
Inspect movement, sub-assemblies and components, and identify condition and faults 
Confirm servicing and repair requirements 
Replace or repair faulty or worn component parts, movement or sub-assemblies 
Use hand tools and equipment correctly for servicing and repair 
Clean clock components at appropriate stages using cleaning and finishing methods 
Verify condition of components after cleaning 
Verify completeness of clock case 
Repair and replace missing or damaged components 
Clean internals and refinish/refurbish exterior with appropriate materials and techniques 
Reassemble clock movement and case components 
Assemble motion work and verify and adjust hand setting tension 
Check and adjust component operations and clock functioning 
Select and apply lubricants according to component design and estimated frictional load 
Apply clock assembly inspections and precautions 
Install and secure movement in case 
Verify/confirm function of clock movement 
Set up, operate mechanical clock timing machine and interpret readings correctly 
Verify clock performance and rate testing 
Adjust rate according to performance and design characteristics 
Use hand tools and equipment safely and correctly 
Handle components without damaging or marking 
Establish a clean and safe work environment 

Forms

Assessment Cover Sheet

MEM21017A - Service and repair clock timepieces
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEM21017A - Service and repair clock timepieces

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: