This message was posted by Mama Kass on AmayaUsers.com. PLEASE DO NOT REPLY VIA EMAIL. Instead, respond to the thread on the WEBSITE by clicking here: http://www.amayausers.com/boards/cgi-bin/ultimatebb.cgi?/topic/1/1226.html#000006 I have no idea if this could be the problem, but since I've been looking at knife and trimmer adjustments in the technical manual it came to mind. Is there any reason why your thread presser might not be retaining the bobbin thread between it and the adjustable fixed knife? Its easy enough to check and might save a service call. =========================================================== The AmayaUsers Mailing List Website: http://www.amayausers.com Discussion Board: http://www.amayausers.com/boards Subscribe/Unsubscribe: http://www.amayausers.com/list ===========================================================