JUKI LU-2800 Series, Руководство инженера

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Adjustment procedures Results of Improper adjustment
1. Adjust the distance from condensation stitch pin
❶
to nut
❷
to
5.2 ± 0.5 mm.
2. Set stitch dial ❸ at the pitch corresponding to the condensation
amount you want to set.
(Pitch 2 in the case of condensation amount of 2 mm)
Loosen clamping screw ❹ of the condensation arm ❺ .
3. Turn ON the condensation stitch cylinder
❻
. In this state, tight-
en clamping screw
❹
of the condensation arm
❺
.
4. The condensation stitch amount can be set up to -3 mm (reverse
feed stitch).
(Caution) If the condensation amount is excessively small, the
material can be torn depending on the type of seam
to cause stitch skipping. This can cause a thread
trimming failure.
Adjustment procedures Results of Improper adjustment
1. Set the stitch dial to “1.5”.
2. Loosen clamping screw
❸ of the condensation arm.
3. Make cylinder
❻
retract the most.
At this time, manually lower the reverse feed lever to place the
sewing machine in the reverse feed state. Tighten clamping
screw
❸ of the condensation arm at the position where the top
end of slot in link ❹ comes in contact with hinge screw ❺ .
o
If the condensation arm posi-
tion deviates from the specified
value, there may be a failure in
thread trimming.