I had seen it. But I was hoping to avoid translating.
On the up side, the shutter is now clean and I think I figured out the adjustment (it's two screws that hold a bar on one side).
But on the down side, I had a very hard time fitting the shutter back in and some levers are not in the right position.
Also, I found a very small spring that probably goes somewhere and three small washers... got absolutely no idea where they go