Hello one and all! Long time lurker, first time poster. On a whim I bought a broken 50 Distagon CF, thinking I could fix the lens. Lens required a CLA, which I have almost completed. I am having some difficulty getting the main spring and the drive train to mesh correctly. I think there is an exact order of operation to get the drive train installed but I can't se to figure it out. Anyone have a prontor CF repair manual, or a photo of the shutter with the cover removed? A photo would help me to understand how to correctly mesh the gears Before anyone chimes in and tells me to send it out, understand that the job is just about finished.