1-MChZ Strela 3017 caliber

[marc_wl]

I am trying to collect technical details before the tentative service my Strela 3017 chrono.

I have technical sheets ("Communication technique et pratique a l'usage de l'horloger-rhabilleur"...) of Ebauches S.A., Neuchatel, for a Venus 188 (March 1957). This caliber is however not related at all to the 1-MChZ 3017, more or less related to the Venus 150 if I remember well (?).

Does someone would have such technical sheet for the Venus 150 or better the 1-MChZ one?

I have the feeling that the red-circled parts are "excentric" (not screws) that should preferabbly not be turned upon dismount. Am I right? Any other else? Usually, some screws are of reversed senses for some rotating parts. Which ones?

http://img119.imageshack.us/img119/9383/301702a8sx.jpg

I can't remember who kindly provided on this forum those scans of the 1MChZ factory list of 3017 parts (Tiyok? Soviet?).

http://img492.imageshack.us/img492/4948/poljot30178ao.gif

May be the technical advices for service are also included in this publication?

Many thanks.

[Valdus]

I don't have your caliber, however I have the Venus 188 (sans roue a colonnes) which is otherwise similar in layout (same for the Valjoux 773x series).

The large head screws ARE NOT excentriques, the small ones are; and you missed one that controls the clutch (embrayage), SE to the lowest large head circled screw.
The one at 10 o'clock controls the "appui d'embreyage", the one at 12 the "baladeur" and the last one at 4 le "sautoir de compteur des minutes".
It's better not to touch them but if you do, it's not rocket science to redo the adjustments (I shall tell you how).
Hope this helps.

[marc_wl]

I don't have your caliber, however I have the Venus 188 (sans roue a colonnes) which is otherwise similar in layout (same for the Valjoux 773x series).

The large head screws ARE NOT excentriques, the small ones are; and you missed one that controls the clutch (embrayage), SE to the lowest large head circled screw.
The one at 10 o'clock controls the "appui d'embreyage", the one at 12 the "baladeur" and the last one at 4 le "sautoir de compteur des minutes".
It's better not to touch them but if you do, it's not rocket science to redo the adjustments (I shall tell you how).
Hope this helps.

Many thanks (also for the perfect French vocable)! It's very helpful.

I feel a bit more comfortable after the complete reading of the technical sheets I have in hands even if it not concerns this caliber. I need however a calm period to start...

Kind regards,