– 14 –
(2) When the thread clamp is used, and bobbin thread at the sewing start appears on the right side of
material, reduce thread tension at the sewing start (2 to 3 stitches) and bobbin thread becomes less
conspicuous.
[Example of setting]
Tension of 1 to 2 stitches at the sewing start is “20” when sewing tension setting is “35”.
* For setting of tension at the start of sewing, see of
"II-2-8(1) Editing the thread tension" p.32
.
1. Thread at the start of sewing may be rolled in case of some patterns. When thread is rolled
in even after performing adjustment of (1) or (2), use the sewing machine with thread
clamp OFF.
2. Thread clamp failure may occur in the state that thread waste is jammed in the thread
clamp device. Remove the thread waste referring to
"III-1-7. Needle thread clamp device" p.107
5-3. How to use the plastic blank (supplied with the machine as an accessory)
1) Machine the plastic blank supplied with the
machine according to the stitching shape.
2) Attach the plastic blank to the feeding frame as
illustrated in the figure.
Use a sponge sheet or rubber sheet
supplied with the machine in combi-
nation with the plastic blank, if neces-
sary.
4530
6030
❶
Plastic blank
40072147
40072148
❷
Feeding frame
40072138
40072139
❸
Setscrew
SM1041401SN SM1041401SN
❹
Washer
WP0430801SC WP0430801SC
❺
Nut
NM6040001SC NM6040001SC
❻
Positioning screw SM4040501SN SM4040501SN
❺
❹
❷
❶
❻
❸
When needle thread is excessively long at the time of using the thick thread, the end of nee-
dle thread held with the needle thread clamp is rolled in the seams, and slip of position of
material may occur or needle breakage may be caused.
(1) When with thread clamp (motion), use the sewing machine after adjusting the needle thread length
at the start of sewing to 40 to 50 mm. When the needle thread length is too long, the needle thread
end held with the needle thread clamp may be rolled in the seams.
40 to 50 mm
1) In case of with the needle thread clamp, the
standard of the length of needle thread is 40 to
50 mm.
2) When needle thread is long after replacing
thread or the like or sewing while holding
needle thread by hand, turn OFF the THREAD
CLAMP key
.
3) When needle thread held with the needle
thread clamp is rolled in the seams, when error
has occurred, or when needle thread is held
entangled with the needle thread clamp, do not
forcibly draw the cloth, but cut the connected
needle thread with scissors or the like. The
seams cannot be broken because of the nee-
dle thread at the start of sewing.
1)
3)
