oli

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  1. It looks home made, but I am sorry I cannot figure out what one would do with it...
  2. I use these too, excellent value for money. It seems I never have enough of them although I purchased very many over the years!
  3. It looks like the same design as the 7S26 barrel Mark made a video about it, the same procedure probably applies https://m.youtube.com/watch?v=DlyNICm2N9k
  4. Hi Roddy, I was there (Olivier), it was nice meeting you, I did not realise you were on the forum!
  5. 3rd wheel friction pinion

    It can be done with a Presto tool, provided you have enough space for the jaws to « grab »
  6. Learning with the 7S26

    7S26 is the first movement I disassembled and re-assembled (was not even a proper service!) Welcome and good luck.
  7. Tweezer dressing?

    You can also use flat emery sticks, they work well for this application
  8. Tweezer dressing?

    There is a good video on Youtube on the subject, well worth watching https://youtu.be/injDQHraiLI
  9. Thank you very much indeed John. I went through this thread and I have learnt that there is probably nothing wrong with my machine! My concern over the lack of adjustment was raised as I was looking at the basket spinning out of the fluid during the drying phase. I thought it looked too quick (i guess i never really paid attention before, i have not been using this machine for very long at all) - so I tried to adjust the speed, and found the speed control was not doing anything. As i kept testing speed control either outside the fluid or with no basket, same result, no adjustment possible. Reading through Micky's thread, if I understand correctly I believe this is normal and is due to the type of motor used (inductive motor, speed fixed by frequency i.e. Constant). The rheostat controls the power to the motor. The resistance of the rheostat is such that it provides a wide range of control when there is resistance from the fluid with the basket - i am quoting below RicardoG's post which explains it better than I can: QUOTE This kind of motor is called induction motor or inductive motor. The speed is a directly proportion to the frequency of the source that supply it. In this case, 50 Hz. The tension applied to it's terminals only give the power to turn. The number of the coils of the motor fix the speed and less coils more speed. Normally in this application the motor have two or four coils (two will turn faster than four). This kind of motor was used in vinil record players because as the source frequency is very stable, the speed of the turntable will be too. With a reostat in series with the motor supply you only change the power making the motor strong or weak. O course if you have some obstacles to fight like the fluid resistence of the cleanning liquid, reducing the power, indirectly you will reduce the speed. That's why when you turn it on outside the liquid the speed raise to the top limit. You can lower the speed outside the liquid using a reostat with high resistece value, and the motor will lower the speer against the atrit between the axis and the supports, that it is not perfect. However, if you do this, when the basket is inside the liquid, the reostat will only increase the speed at the end of his cursor, and the speed will have a fast icrease with a small turn of the reostat. One more tip. The energy that is not used by the motor (in the lower speed) will be burned by the reostat. So, when you adjust for lower speeds, it is normal to the reostat to heat. UNQUOTE I have since tested my machine again, with a basket this time, and speed control is good when the basket is immersed in the fluid. So I do not get good control of the speed only when the basket is spinning outside the fluid, which I understand from the above must be normal?
  10. Hi all I currently use the trusted Elma Super Elite cleaning machine at home, but lately the speed control has been playing up. As in, it is no longer adjustable. The trouble is that it is now set at a rather high spinning speed, a bit more than I am comfortable with. The adjustment knob was working fine and allowing a good range of speed control only a few days ago. This seems to be quite frequent on these machines judging by my initial googling on the subject. However I could not find any detailed, conclusive solutions. I will have a look inside it at the weekend and see if there are any obvious issues, but I thought I would ask for advice here first. Has anyone successfully replaced the rheostat (I believe this is what is used to control the basket rotational speed)? Has anyone "upgraded" to an electronic control? I would welcome any advice!
  11. I would not have thought the Utrasonic is the issue here, I have used L&R fluid #3 rinse in an L&R varimatic (which ultrasonically cleans every stage) with no issue. Have you experimented with new clean solution? (Just thinking that perhaps this is a contamination issue?)
  12. Yep, crazy prices...
  13. Loupes

    It really is down to what suits you, but x 13 certainly sounds too close for general work. I find that 2 1/2 (x4) works great for me for general work. i use 10x and 16x for closer work, and I have a super strong 25x for close inspection of pivots etc.. for any more magnification you would need a microscope. As already mentioned quality of the lens is very important. I started out with the cheap chinese stuff, and it made a massive difference when I upgraded to Asco.
  14. This looks like an ETA 2824-2 movement if I am not mistaken, as confirmed above the bearing is a friction fit in the oscillating weight. Mark has a video about bearing replacement for this movement, see https://m.youtube.com/watch?v=FL-MC4TKp84&ebc=ANyPxKoYSvYWIWx-fAQjyYh0GtXISkSZ0cxFwGTpDQeIfqNW4KxX3xjYHDCTfEa28dXqSNcqvfXOX-H9wyIDcUjvtuEwE5r6lQ if the hole is too large to allow good friction you always have the option to purchase a new oscillating weight + bearing assembly, swiss part number 1143, available from CousinsUK and I am sure other places.