Help me, please! I´ve been spending my day on trying getting my Adler 5-27 to work properly. It missed a stitch here and there, and I thought the hook-needle-timing might be off. Searching this fantastic forum, I (thought I) found the way to adjust it. Seems that the drive shaft was stuck and not able to adjust. have a look at the attatched picture! The red arrow points at the screw I loosened. Is the shaft supposed to rotate freely? It doesn´t. The blue arrows points at the screws I suppose are ment to adjust feed dog timing. Loosing them dont make any difference either. Am I wrong in my assumptions that the shafts are stuck? And, if so, how to get them loose? Sorry about my english. It is not my first language.