Hallo Erich.
It's the first motor. My system has Bosch steppers installed but they look very muth the same. Mine has a white plastic thing in the hole where the metal rod is clipted in. The other one with the brass square thing is for all the others as far as I detached them.
On the picture I attached, it's steppermotor 6 operating the flap on the other foto. I repared the flap. Couldn't get an other one according to my dealer.
Now I have to install the flap and the metal rod with the plastic yellowish device (also on the foto) This device has a square axel which goes in the square hole in the flap.
There is also a white plastic device still in place which operates another flap made out of perforated aluminum.
The white device clicks in the yellowish device so both flaps are operated by the same motor.
I go on reading the PDF.
Gruss Henk.
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