Question 1

How do I adjust the upper thread tension on the JANOME S7 sewing machine to prevent the thread from breaking?

Accepted Answer

If the upper thread of your JANOME S7 sewing machine keeps breaking, it is likely that the thread tension is incorrectly set or there is a threading issue. Here’s how to properly adjust the tension and avoid this problem:

1. Check the quality and condition of the thread

Use good quality thread suitable for the fabric you are sewing.
Make sure the thread is not worn, tangled, or damaged.

2. Check the upper thread threading

Ensure that the thread is correctly passed through all guides and the tension system of the machine.
Incorrect threading can lead to too high tension and break the thread.

3. Adjust the upper thread tension

Locate the tension adjustment dial on your machine (usually numbered from 0 to 9).
Start with a medium setting (for example around 4).
If the thread breaks, gradually decrease the tension (for example to 3) and test on a piece of fabric.
If the thread is too loose and forms loops, slightly increase the tension.

4. Check the needle and bobbin

Ensure that the needle is suitable for the fabric and in good condition (not dull or bent).
Check that the bobbin is correctly inserted and that the bobbin thread is of good quality and properly tensioned.

After following these steps, perform a sewing test on a sample of fabric similar to what you wish to sew. Adjust the tension if necessary until you achieve a smooth stitch without thread breakage.

Question 2

Should the same quality of thread be used for the bobbin and the upper thread on a JANOME S7 sewing machine?

Accepted Answer

To achieve quality stitching with your JANOME S7 sewing machine, it is strongly recommended to use threads of similar quality for the bobbin thread (lower thread) and the upper thread.

Here’s why:

Uniform tension: Threads of the same quality ensure balanced tension between the upper thread and the bobbin thread, preventing uneven or loose stitches.
Strength and cohesion: A thread of similar quality guarantees better strength and consistency in stitching, reducing the risks of breakage or premature wear.
Aesthetic appearance: The homogeneous quality of the threads allows for clean and regular stitches, enhancing the final appearance of your work.

It is possible to use threads of different qualities, but this may lead to issues such as:

Uneven tensions causing irregular stitches.
Faster wear of the lower quality thread.
Increased risk of thread breakage during sewing.

In summary, for optimal results with your JANOME S7, prioritize using threads of similar quality for the bobbin and the upper thread.

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