Adjusting The Stitch Bite Width - JUKI MEB-3810N Series Instruction Manual

8-2. Adjusting the stitch bite width

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start
of the sewing machine.
❶
Center of rod
Standard of stitch bite amount (mm)
Needle rocking width
2.0 to 4.0 mm
❷
To aligned
❷
Lowest
position
Rocking amount
small
B
2
2.5
3
3.5
4
A
Rocking amount
large
− 66 −
1) Open needle rocking adjustment cover ❶.
2) Turn the handwheel to bring the needle bar to its
lowest position.
3) Loosen fulcrum shaft ❷ of rocking link B.
• Moving the rocking link B in the direction A increas-
es the stitch bite width.
• Moving the rocking link B in the direction B decreas-
es the stitch bite width.
4) When the stitch bite width is determined, fix fulcrum
shaft ❷ of rocking link B and close the needle
rocking adjustment cover.
5) After adjusting the stitch bite width in the aforemen-
tioned steps, check the respective items of
Timing between the needle and the looper" p.
79, "10-5. Clearance between the needle and
the looper" p. 84 and
the spreader and looper and the opening timing
of the spreader" p. 85.
The engraved marker dot is a standard. Make
sure of the amount by putting the needle tip
marks on a sheet of paper or the like for the
precise measurement.
"10-2.
"10-7. Clearance between