If you side with a length of 1 cm compresses the LS cable with a pair of pliers something (not by force, only the insulation) by pushing, then it is very easy inched through the small hole of the bent tube. Once at the top then pull with a pair of pliers from the hole and then squeeze also bit by bit to one side, and then pull up with the pliers something. So the cable must not be purely rotated.
So I had the second stator mounted within 5 minutes.