| Author | Message | ||
     Andr� Vietor Unregistered guest Rating: N/A |
Dear friends, I would appreciate your help in this subject. I own a nice JLC Futurematic cal. 817 which is currently totally serviced. Apparently the watchmaker is not 100% sure how to allocate the arm of the power reserve indicator so that it shows white once it is fully charged and blue the charge is running empty. Is there a specific position of allocation? Anybody who can help wiht information? Thanks in advance for your feedback. Regards from a JLC fan in sunny Barcelona, Andr� | ||
| Zaf Moderator Username: Zaf Post Number: 1022 Registered: 05-2003 Rating: N/A |
There is a hook that locks the rotor once the watch is wound, so I take it that the rotor is locking too early? If so, there is an eccentric screw that will chage the height of this hook. What the watchmaker needs to do is raise the height slightly, so that the rotor hooks a little later in the wind cycle allowing more white to show. Zaf | ||
| Andr� Vietor Unregistered guest Rating: N/A |
Hello Zaf, Thanks for your quick response!!! I will see my watchmaker this afternoon. However, as far as I understand the problem is that the power indicator arm does not move enough in order to show the full blue part when running from fully wound down to zero reserve. Is there any advice you can give on how to position the arm if fully wound? Thanks again for your help. Regards, Andr� | ||
| Zaf Moderator Username: Zaf Post Number: 1024 Registered: 05-2003 Rating: N/A |
Is the watch rotor locking or not? | ||
| Andr� Vietor Unregistered guest Rating: N/A |
Yes, it locks. | ||
| Zaf Moderator Username: Zaf Post Number: 1025 Registered: 05-2003 Rating: N/A |
Then it's locking too soon. Make it lock later and you'll get more display on the disk. | ||
| Andr� Vietor Unregistered guest Rating: N/A |
Thanks Zaf, I will forward your recommendation this afternoon. I will update you on the outcome. Regards, Andr� | ||
| Zaf Moderator Username: Zaf Post Number: 1026 Registered: 05-2003 Rating: N/A |
The only other thing is can be is the "L" shaped arm is lifting towards the end of the wind, so that the little gear that moves it is missing its teeth. | ||
| Andr� Vietor Unregistered guest Rating: N/A |
Hi Zaf, Apparently everything you mentioned was checked, but it is not reason for the mentioned problem. It seems to be that the "L" shaped arm needs adjustment from where it is hooked. I'm not an expert, therefore I can not express myself properly with the right technical terms. The watchmaker will show it to me althoough he still does not know exactly how to fix it. Thanks again, Andr� | ||
| Zaf Moderator Username: Zaf Post Number: 1027 Registered: 05-2003 Rating: N/A |
OK. I will post a photo to show which are the adjustment screws. | ||
| Zaf Moderator Username: Zaf Post Number: 1028 Registered: 05-2003 Rating: |
OK, the red arrow is the hook adjustment. It should only hook when the watch is wound enough to run at least 30 hrs. 35-36 hrs is better. In green arrow is the eccentric screw to move the entire arm towards or AWAY from the red zone, so when the watch is fully wound and the rotor has hooked, 30 hrs or more, have the watchmaker adjust this screw so that the white is showing 100%. It's two screws that you have to adjust, go ahead and adjust the first one so you have the proper power reserve and then adjust the one that moves the entire "L" arm to adequately display the power reserve. Zaf  | ||
| Andr� Vietor Unregistered guest Rating: N/A |
Hi Zaf, That's exactly what's need to be adjsuted. Thanks. My watchmaker believes that is also have some relation with the "cone shaped thing" below the screw where the arm is hooked (not visible on the picture). So he keeps on trying to find the right position and adjustment of the arm. Regards, Andr� | ||
| Zaf Moderator Username: Zaf Post Number: 1029 Registered: 05-2003 Rating: N/A |
The "cone shaped thing" is what rubs against the mainspring barel, so as the barrel rotates, friction will move the lever. The screw has no impact on the cone shaped thing, just where the "L" lever sits. |
