Hi Rick, I have a 153 that has been working perfectly but I put a filled bobbin on the thread spindle, to keep it out of the way, and while sewing away the end thread started wrapping around the turn wheel of the machine. All of a sudden I heard a bang, and stopped to look and found my bobbin all wound up around the spindly very tightly, and my motor wheel wouldn't move. I think the thread slipped into the small crack and jammed what little free space was there. I need to know how to actually get the cover off of the machine so I can look at the wheel hardware. I can't seem to figure out how to even get the cover off. I feel dumb but then read your earlier blog and I felt better after hearing it is hard to remove.Thank you in advance. Deborah
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