– 31 –
Rotating direction of bobbin and threading
1) Ft the bobbn so that t rotates n the drecton of the arrow.
2) Pass the thread through thread slt
1
, then through under the tenson sprng
2
, agan through thread
slt
3
, and pull the thread from
4
.
3) Threadng at
4
for purl sttchng s dfferent from that for whp sttchng. So, be careful.
Whip stitch
Bobbin case
Bobbin
Purl stitch
(3) Threading the bobbin case
(4) Adjusting the bobbin thread tension
Adjust the bobbn thread tenson as gven below when the bobbn thread s pulled up at the poston where
thread slt
1
of bobbn case comes up.
Turnng tenson adjust screw
2
clockwse wll ncrease bobbn thread tenson, and turnng t
counterclockwse wll decrease the tenson.
Adjust the bobbin thread tension to lower for synthetic filament thread, and to higher for spun thread.
The thread tenson s hgher by approxmately 0.05N when the bobbn case s set to the hook snce dle-
preventon sprng s provded.
When bobbin thread tension is adjusted, make sure of the needle thread tension setting of the
memory switch. (Refer to
-2-3. Changing the needle thread tension" p. 59
Purl sttch
0.05 to 0.15N
To such an extent that bobbn case quetly comes down
when holdng thread end comng from bobbn case and
shakng t quetly up and down.
To such an extent that bobbn case barely comes down
when holdng thread end comng from bobbn case and
shakng t somewhat strongly.
Whp sttch
0.15 to 0.3N
1
2
4
3
4
1
2
