I have a faulty KR600X - an older KenPro model - azimuth part of the az/el version. It behaves as if it hits the CCW limit at around 060 degrees, giving me only about 120 degrees of rotation. Clockwise limit is fine. Anyone got any ideas? Seems a simple enough thing, but do I get a lapful of ball-bearings if I open it up? 73 Stewart GM4AFF/GM0F