This message was posted by sewsew7 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/ultimatebb.php?/topic/1/398.html#000002 Hi Tom, my machine was "ka chunging" about a month and a half ago as well. It's was a real loud alarming noise to hear. My problem turned out to be that the thread feed gears( sorry my book isn't in front of me, but I think this is what they are called) were out of mesh with each other. My black thingies were jumping with this problem as well, but the noise only happened during a needle change. Look behind your needle case at the top, and there is a white gear back there. Change needles and see if they are in grinding against the white gears that you service during a 4 million stitch maintenance. If so there is a quick fix for this through the key pad, but unfortunately I can't remember the keys to press. If you phone your tech support they should be able to walk you through this on the phone if this ends up being the problem. Hope this helps. =========================================================== The AmayaUsers Mailing List Website: http://www.amayausers.com Discussion Board: http://www.amayausers.com/boards Subscribe/Unsubscribe: http://www.amayausers.com/list ===========================================================