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Lesson 8 -- Mainspring
Disassembly 21 Jan 2007
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| Tools Required: Eye Loupe,
Screw Drivers, Tweezers |
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| Mainspring is the power source of a watch, there are
2 types of Mainsprings: Automatic Mainspring, Hand-winding Mainspring. |
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Mainspring Barrel - Hand winding |
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Step 1.
Open the Mainspring Barrel
Put your fingers on the edge and press down.
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Step 2.
Pick out the Arbor (right)
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Step 3.
Pull out the Mainspring slowly and carefully.
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Pay attention on the end of the Mainspring and the Barrel
in green circle.
This design is for Hand Winding.
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Step 4.
Assembly
According to the winding direction, place the Mainspring
and the Barrel as shown on the left hand side.
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Step 5.
Pick up the Mainspring without changing its direction.
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Step6.
Put the Mainspring back into the Barrel.
The slot on the barrel should hold the Mainspring in position
(green circle)
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Step 7.
Put the Arbor back and close it.
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