■Attaching the Twin Needle
Attach the twin needle in the same way as a single needle (see page 8). The flat side of the needle should face toward the back and the rounded side should face toward you.
■Attaching the Extra Spool Pin
Put the extra spool pin in the hole on the top of the machine. Put the second spool of thread onto the extra spool pin.
■Twin Needle Threading
You should thread each needle separately.
1Thread the left needle.
Follow the same instructions for threading a single needle (see page 21).
2Thread the right needle.
Thread the right needle in the same way that you threaded the left needle using the thread from the spool on the extra spool pin, but do not pass the thread through the guide above the needle before you pass it through the eye of the right needle.
Thread Tension
The tension of the thread will affect the quality of your stitches. You may need to adjust it when you
change fabric or thread. | 1 |
|
Memo
●We recommend that you do a test sample on scrap of a fabric before you start to sew.
■Correct Tension
Correct tension is important as too much or too little tension will weaken your seams or cause puckers on your fabric.
| 2 |
1 | 1 Surface of fabric |
| |
| 2 Back of fabric |
3 | 3 Upper thread |
44 Lower thread
■Upper Tension is too Tight
Loops will appear on the surface of the fabric.
2
5 | 4 | 3 |
1
1Surface of fabric
3 | 5 | 2 Back of fabric |
| 4 | 3 Upper thread |
| 4 Lower thread | |
|
|
5 Loops appear on surface of fabric
Solution
Reduce the tension by turning the upper tension control dial to a lower number.
■Upper Tension is too Loose
Loops appear on the back of the fabric.
1 Left needle thread passes through the needle bar |
2
1
5
5 | 4 | 3 |
1Surface of fabric
2 Back of fabric
thread guide |
2Right needle thread passes in front of the needle bar thread guide
3Needle bar thread guide
Note
Models Equipped with a Needle Threader
●You can not use the needle threader to thread the twin needle. Instead, thread the twin needle by hand, from front to back. Using the needle threader may damage the machine.
3 | 3 Upper thread |
44 Lower thread
5 Loops appear on back of fabric
Solution
Increase the tension by turning the upper tension control dial to a higher number.
Note
●If the upper thread is not threaded correctly or the bobbin is not installed correctly, it may not be possible to set the correct thread tension. If the correct thread tension cannot be achieved, rethread the upper thread and insert the bobbin correctly.
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