Per Kryptonite's mention of the "add on" transmission to slow the speed of our walking foot machines. My add on transmission and extra belt, seems to have changed the mechanical advantage of the motor so much, that, when I try to rotate the handwheel, to line up the needle during a partial stitch, the original Juki LU-563"s handwheel is pretty much impossible to turn, . My "work around," when I need to hand turn and move the needle position a little, is to pick up the sewing machine "head" an inch or two, and then stick a large, plastic, screw driver handle between the head and the table. Jacking up the head releases the belt tension a little, which allows me to hand turn the machine like I could before I added the accessory transmission (please understand, I dearly love this transmission and smaller clutch motor pulley) for slowing the feed about six to one slower. Although it might be a little too slow if and when I get better at sewing. Maybe changing to a "servo motor" instead of fooling with an "add on transmission" and "clutch motor" would have been a better choice?
I do remember reading somewhere, a recommendation about not using an automobile fan belt, because the sewing machine operator needs the drive belt to slip a little, so maybe my belt is just gripping the pulleys too well. I am new at this, and have never seen a sewing machine belt, so how are they different? Round instead of Vee?.
Any body got a better idea, like maybe adapting a six pound, big hugger large diameter handwheel off a Sailrite sewing machine?
