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Timing Machine Reading


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Anyone have any information on what this reading on my timing machine could be? This watch is a hamilton 747 and I have cleaned and oiled it, looked at it under my microscope and it is clean, no jewels are cracked. I have demagnetized it, the hairspring is perfectly clean and it is not rubbing against anything. I cant figure it out so any help would be great. ThanksIMAG1567_1.thumb.jpg.c1d58eea7257e8fddd7563253d4216c6.jpge

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Since it's evident from your other question of today that the mov.t was not completely disassembled and cleaned, you'll have to do that first.

Then balance verify end-shake as insufficient, as well that the end stud is firm. Finally, hairspring and pallet stones have to be in perfect geomometry.

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"Yes, It looks to me that the Timegrapher is getting spurious signals.  Remove the Balance and re-check and check the impulse jewel,  then the lever and pallet stones. Check for Draw, move lever slightly from the banking and see that it returns to where you started from. Check from both banking pins . Then re-assemble if all OK taking note of jdm`s advice. Another possibility is the Esc Wheel. I had a similar problem and it was a very slightly loose impulse jewel (ruby pin) playing havoc. Good wishes, Mike.

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Figured out this problem it was because there was some old oil on the balance cap jewel. I was having troubles removing the stripguard, but once i was able to remove it, clean it and oil it everything is now working.

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    • Sounds great! And yes, I would use grease for the keyless as well although treating the parts with epilame would make the grease less likely to spread in the long run. Not critical but won’t hurt. My current strategy is to epilame treat all parts getting in contact with oil or grease.
    • Hello everyone, for what it's worth, here is my approach: 1. Escape wheel submerged in Epilame, then dried quickly with a hairdryer. Then the final tip of the pivots are cleaned by poking into pithwood. The logic being that the Epilame is removed at the intended contact point (to avoid any residue that may mix with the oil), but remains in the areas where oil is not supposed to spread to (further down the pivot towards the wheel). The escape wheel teeth also benefit from having Epilame to keep the 9415 in place.  2. I use a syringe to treat only the pallet stones. I suspend the pallet fork with some Rodico so that the stones hang downwards. I notably use a rather thick needle where a drop WON'T form, but rather where the Epilame liquid stays in the needle tip, which I then dip into the pallet stones. It requires some practice to get the right amount of Epilame into the needle tip, but it works for me now. This way, no drop will "jump" onto the pallet fork and potentially go all the way to the pivots.  3. I let the movement run for a few minutes without lubricating the pallet stones... to scrape off the Epilame in the intended contact "channel". Then I remove the balance again and lubricate the exit pallet stone with 3-4 successive drops. See the "channel" that forms on the pallet stone in the picture -- not so easy to see, but it's visible.       I am conflicted about the use of Epliame in balance jewel settings. My impression is that the two jewels sufficiently suspend the oil (even 9010). Apparently Rolex recommends NOT to use Epliame there (heard from a former Rolex service center watchmaker), as it could cause additional wear. Apart from that, I follow specific instructions where I can find them. E.g. the infamous Rolex reverser wheels or sometimes (parts of) the seconds wheel. Exception: I'm currently servicing an Eta 2824 and will probably ignore the service sheet that recommends treating the whole keyless works with Epilame and then using HP1300... I'll skip the Epilame and use 9504 grease.        
    • I'm going to give this a try today/tomorrow on my UTC33/Seiko 66, thanks!
    • Hello and welcome from Leeds, England. 
    • Don't forget Mark is a hard working watch maker so he is also tied up with work. I'm sure he is keeping his eye on this forum making sure it is running along nicely. 
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