Https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwiR1v30-ZrMAhVIkoMKHYM1AEEQFggdMAA&url=http%3A%2F%2Fwww.juki.co.jp%2Findustrial_j%2Fdownload_j%2Fmanual_j%2Fddl8700b7%2Fmenu%2Fddl8700b7%2Fpdf%2Finstruction_eg.pdf&usg=AFQjCNELa9vBuXlODt-ff-b-EfwnMWW0dQ

You can also search the internet (or YouTube) for instructions:

Juki D8700 threading Google Search

or contact Juki support for a manual.

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