Application
This unit of competency defines the skills and knowledge required to service wall, floor or shelf clock timepieces that have a running time of eight days or thirty hours.
Where the clock is to be installed at the client's premises after service and repair unit MEM21016 Install and set up clocks should also be selected.
No licensing, legislative or certification requirements apply to this unit at the time of publication.
Band: A
Unit weight: 6
Elements and Performance Criteria
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. | ||
1 | Determine servicing requirements and liaise with customer | 1.1 | Follow standard operating procedures (SOPs) |
1.2 | Comply with work health and safety (WHS) requirements at all times | ||
1.3 | Identify clock origin and case and movement construction and function | ||
1.4 | Verify clock condition and performance concerns with customer | ||
1.5 | Prepare written and verbal quotations | ||
1.6 | Agree with customer on recommended service procedures | ||
1.7 | Prepare clock for handover | ||
1.8 | Record and document repair process | ||
1.9 | Source replacement parts from industry suppliers | ||
2 | Disassemble clock, case and movement components for servicing | 2.1 | Establish an appropriate clean and safe work environment |
2.2 | Select and use appropriate personal protective equipment (PPE) in accordance with SOPs | ||
2.3 | Handle components without damaging or marking | ||
2.4 | Remove clock movements in sequence considering case design and construction | ||
2.5 | Select and use appropriate hand and bench tools | ||
2.6 | Verify condition and completeness of clock case | ||
2.7 | Perform power release in a safe manner | ||
2.8 | Dismantle clock movement in correct sequence | ||
3 | Service and repair movement, sub-assemblies and components | 3.1 | Inspect movement, sub-assemblies and components, and identify condition and faults |
3.2 | Confirm servicing and repair requirements | ||
3.3 | Replace or repair faulty or worn component parts, movement or sub-assemblies | ||
3.4 | Use appropriate hand tools and equipment for servicing and repair | ||
3.5 | Clean clock components at appropriate stages using cleaning and finishing methods | ||
3.6 | Verify condition of components after cleaning | ||
4 | Service clock cases | 4.1 | Verify completeness of clock case |
4.2 | Repair and replace missing or damaged components | ||
4.3 | Clean internals and refinish/refurbish exterior with appropriate materials and techniques | ||
5 | Reassemble clock movement and case components | 5.1 | Reassemble clock movement and case components |
5.2 | Assemble motion work and verify and adjust hand setting tension | ||
5.3 | Check and adjust component operations and clock functioning | ||
5.4 | Select and apply lubricants according to component design and estimated frictional load | ||
5.5 | Apply clock assembly inspections and precautions | ||
5.6 | Install and secure movement in case | ||
6 | Bench test and adjust clock functions | 6.1 | Verify function of clock movement |
6.2 | Set up, operate mechanical clock timing machine and interpret readings | ||
6.3 | Verify clock performance and rate testing | ||
6.4 | Adjust rate according to performance and design characteristics | ||
Foundation Skills
This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.
Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.
Range Statement
This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. | |
Clock origin, case and movement construction and function includes one (1) or more of the following: | 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 (mainspring or weight driven) gear train for transmitting of power escapement for release power oscillator for controlling the speed of release of power winding (by key) time setting (by key or direct movement of hands) |
Clock handoverincludes the following: | 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 includes one (1) or more of the following: | extent and date of repair recorded tracking of subcontractors cost of replacement parts time spent on procedure |
Appropriate working environment includes the following: | 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 include one (1) or more of the following: | originality of components corrosion cleanliness wear damaged or failed components |
Faulty or worn components include one (1) or more of the following: | barrel and mainspring: hooking teeth bearings gear trains: bearings pivots pinions pendulum escapements: pallets and escape wheels engagement drop locking and impulse oscillators pendulum type: rod crutch engagement suspension spring fittings bob security oscillators balance type: balance spring balance staff roller winding mechanisms: key fitting click ratchet wheel click spring setting hand tension or centre wheel friction |
Hand tools and equipment include one (1) or more of the following: | clock repairers' hand tools: tweezers screwdrivers 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, rinses and solvents clock timing machine (this includes any type of machine that provides frequency count or indication of daily rate) |
Verify and adjust hand setting tension includes one (1) or more of the following: | test for correct friction (power to escape wheel) adjustment of motion work friction |
Select and apply lubricants include one (1) or more of the following: | correct lubricants for escapements, bearings, barrels and mainsprings techniques for lubricating |
Clock assembly inspections and precautions include one (1) or more of the following: | gear train end shake, backlash, lubrication mainspring engagement, hooking, tension, lubrication escapement operation, depthing, lubrication pendulum oscillator (amplitude, crutch engagement or suspension function) balance oscillators (end shake or balance spring condition, correct lubrication) |
Performance and design characteristics include one (1) or more of the following: | source of motive force escapement type oscillator and pendulum construction |
Competency Field
Horology