JUKI LK-1901AN Instruction Manual page 76

(2) Adjusting the height of the needle bar
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
1
2
) Loosen needle bar connection screw 1 and move the needle bar 2 up or down so that second
engraved marker line A as counted from the bottom is aligned with the bottom end of needlebar
bushing 3 when turning the hand pulley to bring the needle bar to its lowest position. Then further
raise only the needle bar by 4.3mm, and tighten needle bar connection screw 1 .
2) Attach the needle (TQx3 #4).
(3) Adjusting the feed plate base
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Adjust so that the slot of feed plate 1 becomes the center of the boss section of the needle hole guide,
and tighten setscrew 2 .
When the sewing state between the button and the material is loose, replace feed plate 1
with the feed plate B to obtain a stronger sewing state. At this time, however, the outside
diameter of the button is limited to max. ø19. So, be careful.
Center
73
－
3
A
1
－
4.3mm
2