Hello fellow RWG'ers!!!
Well it is a momentous day as I am doing my very first 7750 keyless works repair. I thought I would take some pics along the way to show you my progress and see if anyone has any tips or pointers
First of all, thank you txcollector for the fantastic link to the ETA SwissLAB with a full tear down procedure. Granted, this is an A7750 and there are some subtle differences, but I think it is working out just fine. For those of you who didn't see that post you can find a link to the SwissLAB here
Now I will be doing this teardown on a PAM 024D. The keyless works was messed up and to help out a good friend, I offered to give it a go. Obviously the first procedure is to de-case the movement (a procedure that I will not cover here). So, once removed, I mounted the movement and dial into my bergeon movement holder to begin the process of removing the hands:
And now the hand removal:
Next I removed the dial. This particular PAM has a GEN dial on it which was mounted with dial dots, so extra care is needed to remove it. Once removed, i cleaned off the old sticky residue from the dial dots:
Isn't that a lovely looking Lello date wheel? Anyways, now to remove the date wheel. There are several parts that need to be removed here, but I will caution you to be very, VERY, careful when you go to remove the Jumper Spring. It will fly out before you even know what has happened and then you will be quite screwed!
So, after some very careful work, the date wheel is now removed:
Next we remove the date platform. Three little screws and a little effort to pull it up and you are good to go:
Now we remove the hour and minute hand gears as they are just sitting in place. If you flip the movement over at this point, there is a very good chance these parts will just fall out so you need to be very careful:
And now the close up of the keyless works:
To be continued........