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Industrial sewing machine top thread breaking

Brother db2-b755-3a mark 3B

Top thread tearing from eye. Catching at bottom even when bobbin is removed, is this timing? perhaps due to needle hitting an obstruction? can I rectify this myself ? I have replaced needle - eye to side - with flat needle side to right.

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Re: industrial sewing machine top thread breaking

The brother DB 2 series of machines do not use a needle with a flat side. the needle system is DBX1 and are available from size 10 to size 20.
Try using the right needle for the machine and the right size for the thread you are using. this should make it better

Posted on Feb 27, 2008

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My bobbin and thread are constantly breaking. I have the correct thread to needle, but I don't even get one stitch before both break. Tension is on auto; should it be less or more?

is the needle in the holder the correct way ( groove in the needle facing the thread )
Is the needle eye the correct size for the thread in use

remove it from auto tension setting and adjust it your self
make sure that the top thread is between the tension plates and not around the thread behind the plates
the thread tension is close to correct when you need a bit of a pull to pull it along to the needle
is the method of threading to the needle correct as any areas where the thread reverses direction will cause it to break
what do mean that the bobbin is constantly breaking or is it the bobbin thread that is breaking
have you got the thread down the case slot and under the flat spring correctly
the bobbin has to be inserted into the case in such a manner that when the thread is pulled , it flows down the slot freely as the bobbin turns
if the direction is wrong , the thread has to move across the sharp edge of the slot and will cut easily

Dec 21, 2015 | Brother Sewing Machines

1 Answer

Thread is bunching up in bottom.

It sounds like you have no tension on the bottom bobbin reel. Did you check your tension on the bobbin reel. The tension must be right on both sides. When pulling on the cotton when the reel is in its bobbin case you need to feel a little resistance. Adjust the tiny srew on the bobbin case to tighten the reel to avoid it to turn in the casing.

Jan 11, 2014 | Brother PE770 Computerized Sewing Machine

2 Answers

Thread not catching

it's very possible that the machine could have jumped time & needs to be

May 16, 2012 | Brother PE770 Computerized Sewing Machine

2 Answers

My needle thread keeps breaking. I've tried different thread (top and bobbin), a new needle, and I opened up the bottom plate to clean out lint. I have also tried adjusting the thread tension.

Are you sure you have got the top thread threaded correctly including the take up lever? Start at the thread spool and follow the thread all the way through the thread path checking that it is not snagging on anything enroute and that the thread is correctly through the tension device. Also tension dial should be on 4-5, if its higher this could be breaking the thread. YOu should not need to adjust top thread tension more than a half increment at any time.

Other possibility is that the bobbin holder under the needle plate has moved out of alignment and then the top thread is catching there as it goes around the hook.

If you check your manual it should give you instructions on removing the needle plate (2 screws need to come out), then you can lift the bobbin case out towards you, clean underneath with your little brush, then reinsert it. There are two little red marks on the right side of the bobbin case and a stopper, these need to be lined up. Then put in bobbin and rethread into tension spring, replace needle plate, bobbin cover, and test stitch.

Hopefully one of the above is causing the thread to break.

Aug 02, 2011 | Janome Memorycraft 6500P Computerized...

2 Answers

Bobbin thread keeps knotting

1. Do you mean that there are knots in the bobbin thread?
2. Is the bottom thread in your stitching looping and knotting.

If yes to 1. you need to rewind your bobbin fresh, and keep slight tension on the thread reel that you are winding it from. Put the handle of your scissors into the top of the reel to apply a gentle pressure while winding. Keep your eye on the bobbin as it winds and give it a nudge with a finger tip to ensure it winds the bobbin evenly top, middle and bottom.

If yes to 2, then you need to check your bobbin threading, is the thread even under tension. Is the bobbin tension set correctly. Break out your manual and revisit this to ensure it is set correctly.

Feb 27, 2011 | Brother XL-5340 Mechanical Sewing Machine

1 Answer

Morse 6300, the thread keeps breaking every attempt i make

Change your needle, make sure the needle is new. and change your thread. Use a high quality thread and rethread the machine carefully, following all the guides. Also, check your tensions. I bet it is the needle tho.

May 11, 2009 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

I have a White 3300 embroidery machine not catching bobbin thread

Try putting a new sewing machine needle in and make sure the eye of the needle is facing the right way. Needles look like they should go just anyway, but if they aren't in right, it could cause the problem you are having.

Jan 01, 2009 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Brother Industrial Machine Tension

This is an answer to another person with a similar complaint. Try the suggestion below, it may fix the problem.

From your description it appears that you have tried tension settings on the upper tension control adjustment knob without success.
Check that the bobin tension is adjusted correctly by taking out the bobin complete with the spool.
Pull the cotton thread and it should be a smooth light pressure if the tension is correct. If it is tight to pull or pulls freely then adjust the tension screw which is found on the outside of the bobbin. The screw is very small and requires a minature size screwdriver. The adjustment will only be a slight turn of the screw one way or the other to obtain the correct tension(depending if it was loose or tight).
Once this is set reinstall the bobin and tread up the machine, hopefully with the upper tension set at approx."2" the machine will sew correctly.

Nov 14, 2008 | Brother LS-2125 Mechanical Sewing Machine

3 Answers

Bobbin thread breaks

Make sure your bobbin thread is turning clockwise as it sits in the bobbin case. There is a screw on the outside of the bobbin case you can turn with your thumb slightly to adjust tension. If you dangle the case from the thread and give it a light ****, it should move down slightly when doing so-an indicator of good bobbin tension.

Nov 13, 2007 | PfaFF Quilt & Craft Pro 7530

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