Question about Brother SE-270D Computerized Sewing Machine

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Adjusting Bobbin Tension

I have a SE270D. The bobbin thread it came with is 60wt...and costs 10.95 a spool. I would like to change over to a more affordable bobbin thread. I have tried several different bobbin threads and each time I get less than perfect results. I was told that I need to adjust my bobbin tension..but how do I do it? I'm so afraid of messing my machine up...does anyone know what I can do to fix my problem???


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Re: Adjusting Bobbin Tension

I looked forever to find this darn green bobbin screw. Around the opening for your bobbin is a plastic cover. If you slide it forward it will pop right off. Once you remove this, the bobbin case will lift right out. On the front you will see your green screw for adjusting your bobbin tension.

Posted on Sep 25, 2008

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Re: Adjusting Bobbin Tension

The bobbin screw on my se 270 D is covered in green paint. Should be easy to spot.

Posted on Jan 18, 2008

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How do I set a straight stitch? What is causing the top thread to break?

You do not say which machine you have. As for a straight stitch, make sure the needle is central and not in zig zag mode.
The thread can break for several reasons, such as. Incorrect tension.
:Wrong thread for the material.
: Thread in bobbin different from the top thread.
:Old thread.
: Not threaded correctly.
: Needle not inserted correctly, or incorrect needle.or the thread could be wound around the spool holder pin,
Try removing the spool and turn it around.
Hope this helps.

Mar 02, 2015 | Sewing Machines

1 Answer

How to adjust the tension disks on my Pfaff sewing machine?

Make sure your bobbin is the right size. If it is too high it won't turn freely. Also, make sure you drop the bobbin in so it rotates clockwise. The tension must adjusted by hanging the bobbin from your hand and bob it up and down gently. It should move about one inch downward once adjusted properly. The hole in your plate should be checked to ensure the center where the thread dispenses is smooth. Use a finger nail file to smoothen if needed. Now, adjust the top tension to four. You may need to adjust just slightly. Just remember when you remove the bobbin assembly to put a drop of oil on the race. (Many forget this). When you rotate the handwheel towards you the bottom thread should come up. If this doesn't happen then you will need to have adjustments made.

Jul 31, 2014 | PfaFF Sewing Machines

1 Answer

How to fill a bobbin on Virtuosa 150

Put the thread spool on the vertical spool holder with a sponge pad underneath. Wind the thread off the spool and through the small wire thread guide next to the spool holder. Take the thread across the top of the sewing arm to the tension unit just next to the gap in the case through which the thread is normally threaded - the tension unit looks like the top of a shiny screw without the slots in it. Wind the thread in a clockwise direction around the tension unit once and pull the thread with a bit of tension until it slips into the sprung gap around the underside of the shiny part. Slip the end of the thread through one of the holes in the bobbin and, preferably, wind a few turns on, then push the bobbin onto the bobbin winder shaft at the right-hand end of the top of the machine. Turn the bobbin clockwise by hand a few more times to make sure the thread is 'locked' onto the bobbin and then just push the lever adjacent to the bobbin winder to the left. To wind the bobbin, you then press the foot controller and either stop when you've got enough thread on the bobbin or let it stop automatically when full. Make sure you dont go so fast that the spool rattles-around on the spool holder otherwise this could spoil the way the bobbin gets filled.

Sep 28, 2011 | Bernina Virtuosa 150

1 Answer

My bobbin thread keeps looping and the top looks fine but pulls out easily. I tried adjusting the top tension, but it didn't help. What can I do?

There could be several things that could cause the machine not to pick up the bobbin thread.

1. The upper thread could be tangled. Remove the thread completely from the machine. The correct size spool cap should be used for the size of the thread spool. Re-thread the machine according to the directions in the manual.

2. Remove the bobbin and make sure the bobbin is threaded properly in the shuttle race. Remove any loose threads or lint in the shuttle race.

3. You could be holding the needle thread too tight. Hold the thread lightly to keep the end from going down into the shuttle.

4. The needle could be thread incorrectly. Thread the needle eye from the front to the back.

5. The needle could be bent or improperly inserted. Install a new needle with the flat side of the needle facing the back.

If the problem persists, your machine may require service.

The bobbin thread tension has already been adjusted at the factory for general use. For most applications, no adjustment is needed.

When sewing with then thread on thin fabrics, the thread tension may not be adjusted adequately with the upper tension control dial. Therefore, the thread tension must be adjusted according to the procedure described below.

If bobbin tension is too loose and locks appear on the surface of the fabric, decrease the thread tension by turning the dial to a lower number.

If the result is still not satisfactory, then adjust the bobbin thread tension.

Increase the tension in the bobbin by turning the screw with a small screwdriver in a clockwise direction. However, do not turn the screw more than one full turn.

Jun 19, 2011 | Brother XL-5340 Mechanical Sewing Machine

1 Answer

I am experiencing tension issues. Same fabric and thread, worked with the first spooling of the bobbin. Re-spooled the bobbin and now the tension is all messed up. Cannot tighten, and it's gathering...

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs

Thank you and good luck.

Jun 07, 2011 | Brother CS-6000

2 Answers

Singer 57817 thread tension problem


If you have Increased the upper thread tension on your machine, try these solutions.

* Decrease your bobbin tension if your sewing machine allows you to adjust it. Consult your manual.

* Re-thread your bobbin, It may be threaded incorrectly.

* Reinsert your bobbin, It may be inserted incorrectly.

* Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both.

I hope this helps.

Sep 21, 2009 | Singer 57817 Computerized Sewing Machine

2 Answers

Underneath stitch bad

Sometimes even though the tension is at recommeded placement, you may find with various fabrics or threads, you have to adjust it. I would try to raise the tension just a bit. Try it a little at a time until you achieve a stitch you are happy with. If adjusting the tension does not correct the problem, double check your threading. If sure it is threaded properly, especially going through the tension assembly...check your thread. I have found that the thread you use can and often does create tension problems. Try changing the thread and see if the stitch quality improves.

Mar 21, 2009 | Bernina Virtuosa 150

1 Answer

Thread or bobbin tension

Thread tension. Beware of adjusting the bobbin screw. Pfaffs maintain their tensions just fine without adjusting the bobbin tension, unless you're using some crazy thick or fine thread. If you must change your bobbin tension, you would be well-advised to buy an extra bobbin case, because re-calibrating your tensions after changing them can be less than fun.

Increase your top tension, and your looping should cease. I normally keep my tension around 4.5. Also make sure you're using a good quality thread, and that there's nothing in the upper tension assemblies. Sometimes a tiny piece of debris can keep the top tension from applying enough tension, so turning the machine off and blowing some canned air in there can help as well.

Good luck,


Mar 10, 2009 | PfaFF Creative 7570

1 Answer

Brother se270d

tighten the tension on the bobbin thread. or you are using the wrong size bobbin spool.

Nov 10, 2008 | Brother Sewing Machines

1 Answer

Need timing instruction for brother SE270d

Your needle thread lock on the bottom of your fabric and your bobbin thread locks on top. If you are getting jamming in the bobbin it is caused by the needle thread. Thread your machine with the presser foot up this will ensure thread going between tension disks.

Oct 14, 2008 | Brother SE-270D Computerized Sewing...

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