Adjustment Of The Bobbin Winder Driving Wheel Position; Adjustment Of The Bobbin Winder Amount - JUKI LK-1900AN Engineer's Manual

(30) Adjustment of the bobbin winder driving wheel position

The distance is 10 mm between the measuring plane B of the bobbin winder driving wheel 1 and the
cover mounting plane A of the sewing machine frame 3 .

(31) Adjustment of the bobbin winder amount

The position of the bobbin winder lever 1 is based on the standard that it is 14 mm apart from the bobbin
winder shaft 2 . Try to perform bobbin winding actually and make fine adjustments in the directions of the
arrows A and B so that the amount of thread winding becomes adequate (recommended value: 80 to
90% of the bobbin).
Standard adjustment
Standard adjustment
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