Unit of competency Outline
Date retreived
23/07/2026 7:22 AM AWST
23/07/2026 7:22 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Service clock escapements and oscillating systems
Service clock escapements and oscillating systems
Unit of competency
National Code
MEM21018A
MEM21018A
State Code
D5471
D5471
TGA Status
Replaced
Replaced
DTWD Status
Transition (Replaced)
Transition (Replaced)
State Implementation and Classification
Approved Date
10/06/2011
Field of Education
030715 - Precision Metalworking
Original Release Date
10/06/2011
Nominal Hours
36
Description
This unit of competency covers servicing techniques for inspecting, diagnosing faults and adjusting common clock escapements (e.g. deadbeat, recoil, cylinder and verge). It also covers techniques for servicing and replacement of different types of oscillating systems, including compound and compensating pendulums, torsional pendulum (e.g. 400 day and Atmos clocks) and platform escapement and floating balances.
Notes
Elements and Performance Criteria
1. Identify escapement and oscillator type
- 1.1. Identify clock escapements/oscillating systems and applications
- 1.2. Establish the performance characteristics of the clock according to escapement and oscillating system
- 1.3. Record and document repair requirements
2. Diagnose clock escapements and oscillators
- 2.1. Select and use workshop tools and equipment appropriately
- 2.2. Inspect clock escapement and oscillators for correct function, engagement and performance
- 2.3. Record and report wear and damage to parts
- 2.4. Determine appropriate repair process to rectify faults
3. Repair and adjust clock escapements and oscillators
- 3.1. Remove and reassemble escapement/oscillators using appropriate tools, equipment and techniques
- 3.2. Determine theoretical length of replacement pendulum
- 3.3. Repair or replace escapement and oscillator components
- 3.4. Adjust escapement and oscillator components for correct operation
4. Service and adjust torsional pendulums
- 4.1. Remove and reassemble torsional pendulums and oscillator components using appropriate tools, equipment and techniques
- 4.2. Inspect torsional pendulum components and identify condition and wear
- 4.3. Repair and replace torsional pendulum
- 4.4. Adjust torsional pendulum for correct operation (in-beat)
5. Service and set up platform escapements
- 5.1. Remove and reassemble platform escapement using appropriate tools, equipment and techniques
- 5.2. Inspect platform escapement and identify condition/wear
- 5.3. Repair and replace platform escapement
- 5.4. Adjust platform escapement and correct depthing with contrate wheel
6. Test and adjust rate
- 6.1. Verify/confirm function of clock movement
- 6.2. Correctly set up and operate mechanical clock timing machine and interpret readings
- 6.3. Verify clock performance and rate testing
- 6.4. Adjust rate, as required, according to performance and design characteristics
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 escapements/oscillator systems
Clock escapements/oscillator systems may include:
verge
recoil escapement
deadbeat escapement
cylinder
platform (e.g. lever escapement and cylinder)
simple pendulum
compound pendulum
compensating pendulum
torsion pendulum
floating balance
suspension systems (e.g. spring blade, knife edge and silk)
Record and document repair
Record and document repair may include:
extent and date of repair
cost of replacement part
time spent on procedure
Adjust escapement and oscillator
Adjust escapement/oscillator may include:
condition amount of drop
condition and extent of lockings
condition and amount of impulse
pendulum action and amplitude
in-beat
Torsional pendulums
Torsional pendulums may include:
400 day and Atmos clocks
suspension spring
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 escapements/oscillator systems
Clock escapements/oscillator systems may include:
verge
recoil escapement
deadbeat escapement
cylinder
platform (e.g. lever escapement and cylinder)
simple pendulum
compound pendulum
compensating pendulum
torsion pendulum
floating balance
suspension systems (e.g. spring blade, knife edge and silk)
Record and document repair
Record and document repair may include:
extent and date of repair
cost of replacement part
time spent on procedure
Adjust escapement and oscillator
Adjust escapement/oscillator may include:
condition amount of drop
condition and extent of lockings
condition and amount of impulse
pendulum action and amplitude
in-beat
Torsional pendulums
Torsional pendulums may include:
400 day and Atmos clocks
suspension spring
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, inspect and adjust clock escapement and oscillating system 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:
identify different types of clock escapements
diagnose faults in clock escapement action
repair faults in worn escapements
set up and adjust clock escapements for optimum performance
fault-find oscillating systems
calculate length of replacement pendulum
adjust rate of timepiece.
Context of and specific resources for assessment
Assessment may occur on the job or in an appropriately simulated 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.
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, inspect and adjust clock escapement and oscillating system 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:
identify different types of clock escapements
diagnose faults in clock escapement action
repair faults in worn escapements
set up and adjust clock escapements for optimum performance
fault-find oscillating systems
calculate length of replacement pendulum
adjust rate of timepiece.
Context of and specific resources for assessment
Assessment may occur on the job or in an appropriately simulated 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.
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OAT78 | MEM21018 | Service clock escapements and oscillating systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| W245 | MEM40105 | Certificate IV in Engineering | Qualification |
| W247 | MEM50105 | Diploma of Engineering - Advanced Trade | Qualification |
| W946 | MEM31010 | Certificate III in Watch and Clock Service and Repair | Qualification |