– 11 –
2
1
4-6. adjusting the thread tension
If thread tenson controller No. 1
1
s turned
clockwse, the length of remanng thread on the
needle after thread trmmng wll be shorter. If t s
turned counterclockwse, the length wll be longer.
Shorten the length to an extent that the thread s
not slpped off.
Adjust needle thread tenson from the operaton
panel and bobbn thread tenson wth
2
.
Longer
Shorter
[adjusting the needle thread tension]
1) Select THREAD TENSION button
A
n the sewng screen.
2) Set needle thread tenson wth TEN
keys
B
. There s a settng range of 0 to
200. When the set value s ncreased,
the tenson becomes hgher.
* When the set value s 50 at the tme of
standard delvery, the thread tenson s
adjusted to 2.35N (spun thread #50).
(When thread tenson No. 1 s released)
B
A
4-7. Intermediate presser height
Press INTERMEDIATE PRESSER SET-
TING button
A
and adjust wth TEN keys
B
so that the clearance between the bot-
tom end of ntermedate presser and the
cloth s 0.5 mm (thckness of thread used).
1. Setting range of the intermediate presser is up to the standard of 3.5 mm.
However, the setting range can be changed up to max. 7 mm with memory switch u112.
2. When increasing the height of intermediate presser or making the needle size thicker, con-
firm the clearance between the wiper and the components. Wiper cannot be used unless
the clearance is secured. turn oFF the wiper switch. Besides, note that the wiper is set so
as to sweep at the position where the intermediate presser is in the lowest position in spite
of the setting of intermediate presser height at the time of delivery. (Memory switch u105)
When raising the intermediate presser height, turn the pulley by hand to lower the needle bar,
and confirm that the needle bar does not interfere with the intermediate presser.
0.5 mm
B
A
