MAINSPRINGS

Important Notice

There is a special tool required to change a mainspring, called a mainspring let down key set. This tool eliminates the possibility of the repairman getting injured and is described in the Clock Help pages. You really do not want to get whacked by a mainspring, they can hurt. This is why the tension of the spring is released before separating the clock plates, or attempting to remove the spring in anyway. Without the tension of the spring being released, the spring will unwind it self very fast in a uncontrollable fashion that can harm the repair person and the rest of the clock movement.

LOOP END

Complete Listing

Mainspring
Let Down Tool

Handle with 4 chucks covers about every key size. Put the chuck into the handle and then release the mainspring in a slow controlled manner.

Item #CT25-- $38

HOLE END

Complete Listing

Mainspring
Winder

Winder for loop end mainsprings, to be used with the mainspring clamps next item over.

Item #CT1-- $10

Mainspring
Clamps

Set of 4 mainspring clamps keep a mainspring in the wound position to keep them under control. Best to get two of these sets for paired sized mainsprings.

Item #CT2-- $11

Let Down
Tool Set

Used to release the power in a wound up mainspring. Key goes into the chuck and the chuck goes into the handle so you can let down the power of the spring. Just another way to release the mainspring power.

Item #CT26-- $29

Wooden
Bench Key

Used to release the power in a wound up mainspring. This will go over your existing key and let you release the power in a safe manner as you release the click. This is really a ring holding tool, but it works good as a mainspring tool

Item #CT16-- $13

30 Hour Springs

These are the two most common sizes found in 30 hour clocks.

Item #CM1-- $7

Common Loop End's

This fits most American 8 day clocks 3/4 x 0.18 x 96" or 5/8 x 0.18 x 96"
This fits most 31 day Korean clocks 3/4 x .165 x 170

Item #CM2

Lux Springs

Loop end for Lux / Keebler 5/16" x .010" x 30" CML269

Item#CM3-- $7

400 Day Springs

Hole end mainsprings for Anniversary clocks. Select size below, the first number is the width of the mainspring in MM and the second number is the inside diameter of the barrel in MM.

Item#CM4-- $14