Jennifer is correct about the differences between an 15-90 and 15-91. The 15 clone machines are of the 15-90
not the 15-91. The 15-91 does not have a belt. I agree that if the belt would fit a 15-90, then it should work. There are a couple of places that tell how to measure a sewing machine belt. Sew-classic has a pdf at
http://www.shop.sew-classic.com/medi...%20install.pdf I don't know how long it will be there as she has closed her shop
.
There a couple of differences between the Singer 15 and the 15 clones. One difference is that the flat of the needle on the clones goes on the right for the clones, whereas, the 15-90 has the flat on the left. The clones would be threaded from left to right through the eye of the needle. The other difference would be the drop feed for the clones is on the bed of the machine, in front of the pillar.
There is a manual for a White 15 clone at
https://res.cloudinary.com/singer-se...e-575-st-x.pdf There may be some differences in the bobbin area, but the rest of it should be helpful.
Janey - Neat people never make the exciting discoveries I do.
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