Sewing Machine Adjustment; Cooler Wire Guide Adjustment - Jack k4 Series Manual Book & Parts Book

Sewing machine adjustment

Attention In order to prevent the sudden start of the machine which causing a personal
accident, please turn off the power, make sure the motor does stop rotating before
operating!
1 Cooler wire guide adjustment.
Adjust the release needle thread guide hight to the number below
Figure7-1 Accounting to different fabric, we can change thread taking up length by
adjusting needle thread guide hight A B C Thread taking up quantity increase when
needle thread guide hight decrease and thread taking up quantity decrease when needle
thread guide hight increase. Figure 1
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then tightening screw