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3-11-3. Remaining thread allowance length
3-11-4. Thread unraveling strength
In such a case, enable the thread loosener to allow it to loosen the thread end.
The thread loosener operates to loosen the thread end. Its reference set value is "1". The larger the set value
becomes, the more times the thread loosener operates in repetition according to the set value.
1. Thread loosening operation takes time. It is recommended to minimize the set value as
long as the thread can be wound on a bobbin. The larger the set value becomes, the
longer time is required for bobbin winding. In such a case, sewing cannot be started un-
til the bobbin replacement is completed.
2. Do not enable the thread loosener when using any thread other than the bond thread
(coating thread). If the thread loosener is enabled when using any other thread, the
thread will be fluffed and will be caught in the bobbin. In such a case, the thread remain-
ing in the bobbin cannot be completely removed.
3-11-5. Setting the bobbin thread end pull-in amount
When you press
allowance length setting screen is displayed.
The remaining thread allowance length can be set to
0 (zero) to 3.5 m in in increments of 0.01 m.
The remaining thread allowance length is used in the
case the bobbin thread remaining length determina-
tion method is set to the Auto.
When you press
strength setting screen is displayed.
The thread unraveling strength can be set in five
levels, 1 to 5.
If "0" is entered for the thread unraveling strength,
thread unraveling will not be carried out.
In the case the thread is stiffened with resin such as
the bond thread (coating thread), it is not possible to
wind the thread on a bobbin.
When you press
pull-in amount setting screen is displayed.
On the bobbin thread end pull-in amount setting
screen, the amount of the end of bobbin thread to be
pulled into a bobbin can be set to 0 (zero) to 100. If it
is set to 0 (zero), pulling in of the bobbin thread end
is not performed. The thread end length becomes
the length as trimmed by this device.
– 22 –
Ⓑ , the remaining thread
Ⓔ , the thread unraveling
Ⓒ , the bobbin thread end
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