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National Electric Watch Cleaning Machine

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When I said that I was waiting for the puller I actually got it already I just did not notice it on the ground in front of the entrance door. I have replaced the ball bearing, twice actually because i forgot to add the dust cover first, not like it is needed now as the new ball bearing is double Z (closed both sides). Now you can see my first ever attempt to clean a watch with a watch cleaning machine. I used a movement which is not worth saving in my opinion for the test run, going to check the parts with my microscope but it looks promising. I used elma 1:9 pink milk solution for the first jar and filtered rain water for the 2nd and 3rd. I still need to work on the motor though, if i screw it down it slows down as something is too tight, its like a play with the balance end shake. Too lose at the moment, it starts to shake too much with high speed because it is not screwed down properly. 






Edited by luiazazrambo
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Stephen, the brushes look as though they still have plenty of meat on them. Have you had a look at the commutator? It may need cleaning. Have a look at this: m.youtube.com/watch?v=MkBLwUG_AdU

Thanks guys. Rather than getting new brushes I've just done as suggested and cleaned everything. Now working as good as new - well, as good as a decades old machine anyway. Pity the speed control no l

If the bush is sintered then it will hold lubricant inside the material.

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    • I bought this for my new watch bench. It is nice but because of the way you work on a watch bench, the lamp is mounted on the same plane as your work space (this is higher than if it were a typical work bench).  As a result, the lamp cannot pivot upward enough to get optimal positions. So, what I had to do was design and print an short extender that pushes the fulcrum of the lamp away from the manufactured pivot point.  This allows me more range of motion. I am pretty happy with how it turned out.
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