Adjusting The Sewing - JUKI LB-6 Manuel D'utilisation

(5) Cutting away chain-off thread from the material
2

4. Adjusting the sewing

(1) Stitches
(2) Chain-off thread
The most desired state of the chain-off thread is soft-chains.
Adjust the thread with the thread tension controllers on the upper stage.
1
Good example
2
× Bad example
1
4
3
1 Lightly pull chain-off thread produced at the end
of sewing away from you. (To such an extent
that the chain-off thread comes off the latch of
the throat plate)
2 Route the chain-off thread so that it is not caught
by the feed dog.
3 Place the chain-off thread under the chain-off
thread pressing plate.
* Pull the chain-off thread toward you, and place
the chain-off thread in the state of being
stretched.
4 When the chain-off thread is placed further to
the right direction after it has entered the groove
of throat plate, the counter knife cuts away the
chain-off thread from the material.
The thread tension controllers to adjust stitches are
the ones on the lower stage of the two stages of the
thread tension controllers.
The thread tension controllers on the upper stage
are used for the chain-off thread sewing.
Upper stage : For chain-off thread sewing
Lower stage : For stitches
Adjust the controllers so tat the desired stitches can
be obtained.
Adjust so that looper thread and needle thread in-
terlace by the same length. 1
(Chain-off thread that slightly returns to the previ-
ous length when it is drawn then released.)
Tighten the protruding thread.
If this type of chain-off thread is produced, the needle
thread may sew the chain-off thread resulting in
improper rolling-in of the chain-off thread. 2
41