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Adjusting the Thread Tension

The tensions of the upper thread and of the bobbin thread (thread tension) should be adjusted so that they are equal.

Changing the tension of the upper thread

You may need to change the thread tension, depending on the fabric and thread being used.

Correct thread tension

The upper thread and the bobbin thread should cross near the center of the fabric. Only the upper thread should be visible from the right side of the fabric, and only the bobbin thread should be visible from the wrong side of the fabric.

1

2

3

4

aWrong side of fabric

bRight side of fabric

cUpper thread

dBobbin thread

Upper thread is too tight

If the bobbin thread is visible from the right side of the fabric, the upper thread is too tight.

Note

zIf the bobbin thread was incorrectly threaded, the upper thread may be too tight. In this case, refer to “Installing the bobbin” (page 26) and rethread the bobbin thread.

1

2

3 5

4

aWrong side of fabric

bRight side of fabric

cUpper thread

dBobbin thread

eThe bobbin thread is visible from the right side of the fabric.

Turn the thread tension dial to the left to loosen the upper thread.

2

Upper thread is too loose

If the upper thread is visible from the wrong side of the fabric, the upper thread is too loose.

Note

zIf the upper thread was incorrectly threaded, the upper thread may be too loose. In this case, refer to “Upper Threading” (page 28) and rethread the upper thread.

5

1

2

3

4

aWrong side of fabric

bRight side of fabric

cUpper thread

dBobbin thread

eThe upper thread is visible from the wrong side of the fabric.

Turn the thread tension dial to the right to tighten the upper thread.

Note

zIf 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.

Adjusting the Thread Tension 57

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Brother 285C, 885-U22 Adjusting the Thread Tension, Changing the tension of the upper thread, Correct thread tension

885-U22, 285C specifications

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