Unit of competency Outline

Date retreived
23/07/2026 5:55 AM AWST

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Restore clockwork mechanisms

Restore clockwork mechanisms

Unit of competency
National Code
MEM21021
State Code
OAT75
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
26/06/2019
View on TGA
State Implementation and Classification
Approved Date
Field of Education
030715 - Precision Metalworking
Original Release Date
Nominal Hours
54
Description
This unit of competency defines the skills and knowledge required to restore and repair clock components by manufacturing parts using hand skills and machine tools and also covers servicing power equalisation systems.Application includes restoration and repair work to antique clocks where parts are no longer available. Where machine manufacture of clock components is required unit MEM21022 Manufacture watch and clock components should also be selected.No licensing, legislative or certification requirements apply to this unit at the time of publication.Band: BUnit weight: 6
Notes
Elements and Performance Criteria
1 Determine job requirements
  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Select and use appropriate personal protective equipment (PPE) in accordance with SOPs
  • 1.4 Identify job requirements from specifications, drawings, job sheets or work instructions
2 Identify clock restoration requirements
  • 2.1 Identify missing, damaged or worn parts
  • 2.2 Identify prior modifications and repairs, including non-standard or non-original components
  • 2.3 Plan repairs in consideration of original clock design and manufacture
  • 2.4 Record and document repair
3 Service and repair power equalisation devices
  • 3.1 Identify fusee and stopwork device
  • 3.2 Release mainspring power
  • 3.3 Diagnose system faults
  • 3.4 Replace fusee chains or cables
  • 3.5 Set up fusee and stopwork systems
4 Produce clock parts by hand
  • 4.1 Prepare working drawings and templates of replacement parts
  • 4.2 Plan suitable method and sequence of production
  • 4.3 Select materials suitable for manufacturing
  • 4.4 Transfer designs and mark out templates and work pieces
  • 4.5 Select appropriate hand tools to undertake process
  • 4.6 Produce components by hand to required specifications
  • 4.7 Conduct finishing, heat treatment and polishing of components
  • 4.8 Verify function of manufactured components
5 Refinish and polish clock components
  • 5.1 Select appropriate refinishing process to repair worn or corroded clock components
  • 5.2 Refinish parts to replicate original finish
  • 5.3 Adjust refinished components for correct function
6 Repair gears, wheels and arbors
  • 6.1 Identify worn or damaged teeth
  • 6.2 Fit, file and shape replacement teeth
  • 6.3 Re-pivot arbors
  • 6.4 Secure replacement part using appropriate fixing method
  • 6.5 Test-run with matched component
No information
No information
Replaces
State Code National Code Title Type
D5474 MEM21021A Restore clockwork mechanisms Unit of competency