NTISthis.com

Evidence Guide: MEM21020 - Service and repair clock chiming mechanisms

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM21020 - Service and repair clock chiming mechanisms

What evidence can you provide to prove your understanding of each of the following citeria?

Determine servicing requirements and liaise with customer

  1. Follow standard operating procedures (SOPs)
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify functions and types of chiming system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify clock condition and performance concerns with customer

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare written and verbal quotations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Agree with customer on recommended service procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare clock for handover

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record and document repair process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Source replacement parts from industry suppliers

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Service and repair chiming mechanisms

  1. Establish an appropriate clean and safe work environment
Establish an appropriate clean and safe work environment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and use appropriate personal protective equipment (PPE) in accordance with SOPs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove and replace movement considering case design and chiming system employed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Handle components without damaging and marking

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use appropriate hand, bench tools and equipment in a safe and correct manner

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm design and operation of the chime corrector mechanism

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine service procedure for particular movement design

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Inspect condition of chime release, activation and sound generation, and identify wear and faults

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dismantle and clean chiming components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify orientation of gear trains, strike and chime detents

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm servicing and repair requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair and rectify faults in chiming components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reassemble chiming mechanism and verify correct set-up, operation and performance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and apply lubricants to chime components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Bench test and adjust chime functions

  1. Verify and confirm function of chiming mechanism
Verify and confirm function of chiming mechanism

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify clock operation over 24 hour period

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and rectify faults in chiming mechanism

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge
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.

Functions and types of chiming system include one (1) or more of the following:

chiming clocks of various movement design (count wheel or locking plate, rack or combinations of control systems)

long case and mantle clocks

motive force (mainsprings or weights)

gear trains (components of each train)

chime release mechanism (control functions - chime and strike)

chime and strike fans (control speed of trains)

hand setting and synchronisation with chimes and strike

winding systems in chiming clocks

night shut-off switch types

chime correcting mechanisms

types of chimes by hammers and sequences for tunes (4 or 8 hammer)

tunes played (Westminster, St. Michaels or Whittington)

chiming media (gongs, tubes or bells)

Record and document repair process includes one (1) or more of the following:

date and extent of repair

cost of replacement parts

time spent on procedure

Design and operation of chiming corrector mechanism includes one (1) or more of the following:

double detent

spring loaded catch

rocking locking plate

bell crank

pivoted detent

Inspect condition includes one (1) or more of the following:

originality of components

corrosion

cleanliness

wear

hand setting tension

function and safety of winding mechanism

gear train end shake/backlash/lubrication

mainspring engagement/hooking/tension/ lubrication

adjustment of chime and striking functions

verification of chime corrector functions

synchronised chime release with operations of hands at the four quarters

amount of warning for chime train

strike release mechanism operation

sound of chimes and strike monitored

gong rods, bells, tubes alignment and security including attachment to case

hammer head inserts (condition - worn or aged)

Chime components include one (1) or more of the following:

four quarter cam

lifter

chime flirt or detents

strike flirt or detent

chime locking plate

chime corrector

chime gear train

ratio wheel

chime pin barrel

gong rods, bells and tubes

hammers

Faults in chime components include one (1) or more of the following:

mounting security (gong rods, bells or tubes)

warning and locking pin security and detent mountings

hammer condition

worn arbors and bearings

broken or worn chime components

Correct set-up includes the following:

synchronised chime release with hands

amount of warning

chime corrector operation

correct tune sequence

sounds of chime

Hand tools and equipmentinclude one (1) or more of the following:

clock repairers' hand tools:

tweezers

screwdrivers

eyeglasses

universal shifter, sockets and spanners

pliers, end cutters, files and levers

movement holders, stands and wall brackets

stakes for supporting removal/replacement of components

lathe for pivot and arbor repairs and finishing

clock bushing tool and replacement bushes

lubrication (oiler, oil pots and greases)

cleaning brushes, peg wood, solutions, rinses and solvents

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