Brother PR600 6-Needle Embroidery Machine W/3x Hoops And Manual

Timing issue - Picks up thread, but slips after a few cycles. Bought this second hand to try and get it working, but no longer have time to suss it out. It does power on, takes a design and does initially pick up the thread, but after a few passes it seems to slip. Probably a timing issue but I don't have time to work on it. Comes with the manual, 3x Hoops, and a spare Hook.

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