The shutter was seized and the winding mechanism did not work.
I opened the top of the camera and pieces started to fall from the camera. I tried to find information about repairing this camera and could not find information about the shutter, a Prontor 250S or the camera a Contina. I could find information about the ContinaI, the ContinaII and the F model, but not the Contina. Same for the shutter, tons of information about the SVR and the 500, but the 250 is nowhere on the web.
Top cover removed
Some pieces found inside. Screws, a spring and a piece from the crank lever
The lever in place. This lever is the clutch og the winding lever.
Using some common sense and lots of patience, little by little I found where the bits and pieces should go. The most complicated part was the shutter, since some resorts were missing and I had to figure out how to put them back. Trial and error, and a week time of work finally gave a working shutter.
Tool to unscrew the shutter
The shutter removed
Diaphragm grip and mounting rings
Front lens removed
Speed ring removed
Springs on wrong position
Shuter blades repositioned
Finished shutter
New spring
The return spring of the winding lever was broken. I did one with a stretched spring from an old Xerox Copier.
I have to
figure out how to focus this camera since the negative area is very
small. I’ll try.