A few points you have to consider but definitely:
1) on the band elements typically located an arrow that points to the Ausdrückrichtung. Upon closer examination, it is found that a lateral pin hole appears larger than those against. From the seemingly smaller opening to the larger towards the arrow should point. That's the Ausdrückrichtung.
2) it is worth a piece of tissue paper as a backing in the clip set to to prevent scratches
3) Insert the tape -sehr- accurately and meticulously ensure that the Ausdrückspitze comes nicely centered on the band pin and everything is properly aligned vertically.
1 flaw: It is shown that the tips are not working particularly pressing precisely because they stagger slightly when turning.
4) decided, but rotate with sense of resistance to the handle and pushing the pin. This should initially somewhat strict, but then go easier. Under no circumstances use force to rotate until the tip bends!
Blemish 2: the thread that carries the pressing tip is not necessarily a precision part. That makes you feel immediately at play and the right rough guide.
5 found) belt and pull out the pin
Assemble tip for Use: The pins must indeed back inside, plus there is appropriate Watchmaker Hammers.