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Using The Threader - Brother NV-10A Service Manual

Computerized sewing machine.
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Outline of Mechanism Using the threader
The threader provided on this sewing machine is a device for making threading easy, but there are cases where it
cannot be used because of the combination of sewing machine thread and needle type.
At present, there are various types of sewing machine thread and sewing machine needles on the market for handling
a variety of sewing conditions. Not only may it be impossible to carry out the threading operation due to the
combination, but also there is a danger of damaging the threader. Be sure to check the combinations for which it can
be used, those for which it cannot and those for which it can but which do not give full performance in the following
table to deal with customer claims.
1. The threader cannot be used with sewing machine thread and needle combinations that are not in the table or
those marked with an x.
2. Since combinations marked with an asterisk have a greater possibility of damaging the threader or not
working properly, do your best to encourage users to avoid them.
3. When using the threader, lower the presser.
4. Do not turn the pulley while using the threader.
5. To not push the needle thread lever down when the sewing machine is in use. Not only could the threader be
damaged, but this could be a cause of needle breakage and injury.
6. When a #9 sewing machine needle is used, threading may be difficult. (This is caused by variations in needle
7. If the needle tip is less than 8 mm from the upper surface of needle plate A, threading may not be possible.
8. When a side cutter is being used, the threader cannot be used. Perform the threading operation before
attaching the side cutter.
Thread size
Needle size
1 - 7


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