Repairing Your Own Clocks
By Mervyn Passmore

© Copyright
Mervyn Passmore 2005

M&P Home


Copyright notice
Contents
    Introduction
    Which clock to begin on?
    Hand Removal
        Pin and Collet
        Hand nut
        Friction fitting
    Removing the dial
    Letting down mainsprings
    To strip or not to strip?
        Cleaning without stripping down
    Stripping down the movement
    Repairs
        Pivots
        Bushing:
            Choosing cutting broaches
        Re-facing the pallets
        Checking the crutch and yoke
        The Platform Escapement
            Ordering a replacement platform
            Fitting a new platform
        Broken and Missing Pieces
            Broken teeth
            Suspensions.
            Clock chain
            Clock glass
            Mainsprings
            Pendulums
            Gong rods
            Winding keys
    Cleaning the dismantled movement
        Pegging out
        Using an ultrasonic tank
    Lacquering
    Re-assembly
    Lubrication
    Re-assembling and Setting up
    Setting up
        Siting
        Regulation
    Tips, Hints & Helps
        Bluing
        Silver soldering
        Soft soldering
        Dial Silvering
        Splicing 30 hour rope
        Black Marble or slate cases
    Tables
        Broach table
        Train count table

Home


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Broken teeth

Wheels normally become damaged as a result of a mainspring breakage. The impact can damage one or two teeth or strip the whole wheel.

A damaged wheel
Damaged teeth on a wheel.

Material dealers cannot easily stock replacement wheels, except for very recent clocks, due to the vast variety of sizes and tooth counts.

If the wheel is beyond repair, you will need to consult a professional wheel cutting service.

One to three teeth can be replaced by cutting out that section

Cut out the damaged part
Cut out the damaged area.


and dovetailing in a new piece of brass.


Fit a new piece of brass
A new piece of brass is dovetailed in.

Silver solder the new material in place

Silver solder in position
The new piece is soldered in.


New teeth can then be cut and filed to shape.

Cut and file new teeth 
Forming new teeth.


New teeth can be formed by hand if no lathe is available.



This document is © copyright M&P 2005
© Copyright Meadows & Passmore Ltd and Mervyn Passmore 2005
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