Adjust The Needle Bar Height - Jack JK-T781E Series Manual

2.1、adjust the needle bar height
Second way:（observe the hook)，Install the needle to make the needle in the middle
of the pinhole, move the needle bar to the lowest point, observe and make the upper
edge of the pinhole not exceed the needle plate.
lowest
point,of the
needle
needle
Front panel
plate
of neele
plate
the middle
of the
pinhole