The engine was first not to get into the shaft. After I had the, all round very easily bent the sheet metal of the shaft on the side where the motor is fitted with a pair of pliers to the outside, the motor was to get at least 2-3 cm in the shaft. The engine then no strike in the shaft, Laying but board on the ground, the shaft with the motor on top, stomp on the board. Due to the weight of the engine this then slips into the shaft. Good was also that was the camp for the engine there. Thus, even the camp had to be replaced, the other side could remain. Now the wave capsule from the other side hit, previously check whether the shaft must be shortened. Prefer something more saw off, which is offset from the shaft capsule. Lay the shaft with motor horizontally and hit from the side. So they do not too far turn, check again and again how far they still have to follow, because back is very difficult because the capsule partly fits very tightly. Although the wave capsule sits very tightly, adjust with less tapping screw so that nothing slips. As far as the installation of the motors. The time switch is in a frame that is screwed onto the flush-mounted box, snapped. That I did not like, because I leisure the clock take twice out of the frame. The third engagement, the catches were so widely consumed, sat the clock loose in the box. I then sprayed with silicone to the frame around, thus I was able to save the thing. Better would please me if the clock is screwed into the socket, as an outlet or switch, then also sits firmly. As I said, with the snap, which appears a bit cheap to me. Snap the clock on only after all wires are properly connected, the direction of rotation, so up and down right. The first locking the clock still holds good. By the way my shaft had no recesses for the spring holders, were with me even fabric straps on the shutters, but I have exchanged. In the area of the engine you have to use very short self-tapping screws, which they would otherwise damage the engine. Possibly with pliers cut a too long screw itself. Otherwise, I was pleased with the delivery. Motor draws krafvoll passes smoothly and quietly.