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

MEM21009A Mapping and Delivery Guide
Inspect, diagnose, adjust and repair mechanical watches

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency MEM21009A - Inspect, diagnose, adjust and repair mechanical watches
Description This unit of competency covers repair techniques for inspecting and evaluating the condition of mechanical watches, diagnosing problems, making repairs and adjusting mechanical watch movements and sub-assemblies. It builds on skills and knowledge required to service mechanical watches.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit applies to fault-finding and repair work undertaken by a watch repair tradesperson on mechanical watches. Work would normally be undertaken in watch service and repair centres and jewellery stores where watch service and repair is offered. Band: AUnit weight: 4 points
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites MEM18001C Use hand tools MEM21008A Service mechanical watches
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
  • Identify watch construction, function and characteristics
  • Source manufacturer technical guidance information to determine correct tolerances and specifications
  • Prepare watch for handover
  • Record and document repair process
       
Element: Inspect mechanical watches
  • Undertake inspections of watch movements in accordance with manufacturer tolerances and procedures
  • Make accurate observations of the condition and function of components and sub-assemblies
  • Remove and replace components and sub-assemblies in a sequence designed to accurately assess condition and faults during the process of dismantling and assembling
  • Inspect lubrication quantity and condition
       
Element: Diagnose faults in mechanical watches
  • Evaluate observations and watch performance characteristics to determine appropriate repair procedure
  • Analyse timekeeping performance using appropriate techniques and equipment
  • Make alterations in a logical sequence to diagnose faults
       
Element: Repair and adjust mechanical watches
  • Select and use appropriate hand tools
  • Undertake dismantling and reassembling of watch movements according to industry standard procedures and manufacturer guidelines
  • Make precise corrections to sub-assemblies
  • Remove, dismantle, replace and reassemble sub-assemblies and components in correct order without damaging or marking
  • Select appropriate replacement components
       
Element: Test and adjust watch function and performance
  • Verify and confirm function of watch movement and sub-assemblies
  • Verify watch performance and rate testing
  • Adjust, as required, according to manufacturer specifications
  • Repeat testing, as required, to confirm performance
       
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 inspect and evaluate the condition and performance of mechanical watches, diagnose faults and make repairs and adjustments 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:

apply dextrous hand skills to manipulate components and sub-assemblies

select and use appropriate bench tools when adjusting

interpret readings and make accurate observations to recognise faults

determine appropriate sequence to accurately assess condition and faults during the process of dismantling and assembly.

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:

good manual dexterity

assembling and dismantling in accordance with procedures and manufacturer guidelines of mechanical watches including movements

undertaking inspection and adjustment of watch mechanisms and sub-assemblies, including:

escapement end shake and freedom checks

observation of gear train backlash

wear checks

performing timekeeping analysis and adjustment techniques

Required knowledge

Required knowledge includes:

function and operating principles of mechanical watches:

mainspring

gear train

escapement

oscillator

winding and setting mechanisms

procedures for fault-finding and inspection of watch mechanisms and sub-assemblies

manufacturer specifications and tolerances for performance and timekeeping

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.

Watch construction, function and characteristics

Watch construction, function and characteristics may include:

mainspring variation of motive force

gear train freedom (e.g. end shakes, side shakes and backlash)

escapement operation performance

oscillator amplitude, balance spring positional changes and influences

winding and setting mechanisms

Condition and faults

Condition and faults may include:

end shakes, side shakes and clearances of operating components

oscillators balance spring condition, shock protection operation, condition and component replacement

functioning, clearances and safety action of the escapement system

mainspring and barrel assembly condition

gear train (e.g. pivot, pinions and bearings conditions - wear and corrosion)

winding and setting components (e.g. wear and end shake freedom)

lubrication including type, application, quantity and cleanliness

Timekeeping performance

Timekeeping performance may include:

regulating system components adjustment

balance spring condition (e.g. flat, concentric, beating evenly between curb pins)

beat error diagnosis and adjustment

Sub-assemblies and components

Sub-assemblies and components may include:

balance and cock assembly (e.g. shock spring replacement)

escapement components (e.g. pallet and escape wheel)

barrel and mainspring assembly (e.g. barrel arbor, barrel wall hooking device )

gear train (e.g. observe backlash)

winding and setting mechanisms, including motion work and canon pinion

hand setting tension (e.g. cannon pinions and friction wheel)

shock-resistance system

calendar, winding system and other mechanisms

power reserve

Watch performance/rate testing

Watch performance and rate testing may include:

in-beat adjustment without movable stud holder

rate adjustment

amplitude evaluation of watches performance

Hand tools and equipment

Hand tools and equipment may include:

timing machine

staking set

jewel press

eyeglass, screwdrivers and tweezers

case opening and closing tools

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 watch construction, function and characteristics 
Source manufacturer technical guidance information to determine correct tolerances and specifications 
Prepare watch for handover 
Record and document repair process 
Undertake inspections of watch movements in accordance with manufacturer tolerances and procedures 
Make accurate observations of the condition and function of components and sub-assemblies 
Remove and replace components and sub-assemblies in a sequence designed to accurately assess condition and faults during the process of dismantling and assembling 
Inspect lubrication quantity and condition 
Evaluate observations and watch performance characteristics to determine appropriate repair procedure 
Analyse timekeeping performance using appropriate techniques and equipment 
Make alterations in a logical sequence to diagnose faults 
Select and use appropriate hand tools 
Undertake dismantling and reassembling of watch movements according to industry standard procedures and manufacturer guidelines 
Make precise corrections to sub-assemblies 
Remove, dismantle, replace and reassemble sub-assemblies and components in correct order without damaging or marking 
Select appropriate replacement components 
Verify and confirm function of watch movement and sub-assemblies 
Verify watch performance and rate testing 
Adjust, as required, according to manufacturer specifications 
Repeat testing, as required, to confirm performance 
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

MEM21009A - Inspect, diagnose, adjust and repair mechanical watches
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

MEM21009A - Inspect, diagnose, adjust and repair mechanical watches

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: