0. Adjustment Of The Wiper Spring; 1. Installing The Save Button Bar (Accessory Part) - JUKI LK-1901AN Instruction Manual

10. Adjustment of the wiper spring
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
2
1
11. Installing the save button bar (accessory part)
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
2
4
3
3.5 to 4mm
Wiper spring 1 retains the needle thread after
thread trimming in between wiper 2 and the wiper
spring. Correct properly the tension of wiper spring
1 so that the tension at that time becomes 0.2 to
0.3N (a little higher tension than that of the bobbin
thread coming out of the bobbin case).
) Install save button bar 3 on button clamp base
1
2) Adjust so that a clearance of 3.5 to 4 mm is
3) To adjust the raising amount of the save button
70
－ －
If the retaining of the needle thread is
excessive, the thread may protrude
from the upper side of the button.
1 with hexagon screw 2 .
provided between the center of the button and
the top end of the save button bar.
bar, loosen screw 4 , and move the save button
bar up or down.