Question about Bernina 1008

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Bottom thread loops as if the tension is off. When I turn the tension dial nothing changes. Could it just need a good cleaning a lube job?

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Set tension at 3. See for tips on tension correction, oiling moving parts, lubricating gears, race & shuttle, proper threading order, etc, Don't waste gas, time& money on something you can do yourself! Jimmy

Posted on Apr 13, 2012

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  • Bernina Master
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Probably due for a service, the top tension discs can get dirty and gummed up or they may not be working at all.

Is the top thread actually into tension? Always raise the pressure foot when you thread up so the thread can get into tension, if the pressure foot is down, then the tension device closes up making threading correctly very hard.

I always suggest the following for any fault, take off all the threads, clean and oil according to manual, clean between the tension discs by turning to zero then flossing between them with a clean fabric edge of cotton waste. Oil if your machine manual says to. Wipe the whole thing over with a clean slightly damp cloth.

Then start fresh, wind a new bobbin, thread up, new needle and test sew. Then, if its still playing up, put it in the car and go for a visit to the tech.

Posted on May 28, 2011


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My thread keeps looping on bottom Have changed tension, needle rethreaded and changed bobbin nothing helps what am I doing wrong?

not sure if this will help you...Check Your Tension Settings. Looping underneath the fabric usually occurs when there is not enough tension in the needle thread to pull the bobbin thread. Sometimesthread buching can be caused by something as simple as the tension dial being inadvertently turned.

or you could go to this link and see if it helps you out.. thread keeps looping Google Search

Oct 22, 2017 | Sewing Machines

1 Answer

How do I adjust tension on a Necchi Lydia 510 sewing machine?

loops under fabric means top tension needs to be tightened
try cleaning the top tension dial with some unwaxed dental floss and see if that helps. if it doesn't then the tension dial may need to be replaced
also check to make sure the spool of thread is not getting caught on the spool holder
also try a new needle--one that is correct for the fabric being sewed

Feb 10, 2015 | Necchi Sewing Machines

2 Answers

New Home ss2015 machine. I am having trouble with the thread tension. I have loops on the bottom. I have cleaned the bobbin case, changed the needle, re-threaded and moved the upper tension all the way up....

try adjusting the top tension to 3 & if it doesn't stop the looping, try 4 but I wouldn't go any higher than 5,, if changing the top tension doesn't help then I suggest taking the machine in to have it serviced. the bottom tension is more difficult to do,, it's also very possible that the top tension dial is messed up & needs replacing. only a sewing machine shop can tell for sure.

Mar 02, 2012 | Sewing Machines

1 Answer

The bottom thread of stitch loops severly. I have checked and rethreaded, change dtop and bottom tension till the cows come home and nothing I've tried makes a difference.

if you are getting loops on the side its from the top thread not being tensioned enough to hold it firm as the needle goes down through the fabric. Either top tension device is broken or its gunked up with fluff or dye particles. If you can access the tension discs to clean them, then try this first. Turn top tension to zero, then "Floss" betwen the discs with the selvage edge of a clean piece of waste cotton fabric - if it comes out with black gunk on the edge, then do it again until it is clean. You can moisten the fabric edge with some denatured alcohol to aid cleaning if it seems really gunked up. Black and dark coloured threads often shed dye particles, and cheap thread will be quite "hairy" this adds to the gunk. Its a good idea to clean the tension discs out regularly, along with cleaning the bobbin area and oiling the designated oiling points (although many new machines now have oiling wicks for the technician, and may not have marked points for you to oil. However cleaning is still very important if this is your type of machine. Textile fibres absorb oil, and ultimately "felts" up into a lump that affects performance of the moving parts.

Once you have cleaned it, turn dial back to 4 or 5, normal setting, then thread up from spool to just above the needle with the presser foot raised, then lower presser foot and tug downwards on the thread; it should be firm to pull. If this is still not happening, take it for a service, the spring in the tension device may have broken.

Nov 27, 2011 | Singer 3116 Simple

2 Answers

My Janome Sewist 500 is making me crazy. The tension is loose on top, causing loops on the back, and the bobbin thread is just a straight line. I have changed the needle, changed the thread, rethreaded...

that sounds like the top tension dial is not working, causing looping on the underside so start by cleaning out the top tension device. To do this, unthread, turn tension to zero, then "Floss" between the discs with the selvage edge of a clean piece of waste fabric. If some black gunk comes out onto the fabric, then refloss on a fresh edge until its clean.

Then reset tension to 4 or 5 and thread up again until just before the needle. Now lower the pressure foot to engage the tension device and pull the top thread downwards - it should feel firm. If this is not happening, then I'd go the serviceman next. These things have a spring in and it may have broken.

I think the bobbin tension is probably okay so just reset that back to what it was, the straight line on the bottom is because the top thread is not being drawn back up by the take up lever on the upwards stroke due to insufficient tension on the top thread.

Hopefully cleaning the tensioner works though. Good luck.

Sep 25, 2011 | Janome Sewist 500 Sewing Machine

1 Answer

I have looping underneath. Top stitch looks great.

top tension is too loose,check threading up and tension dial. should be on 4-6. read manual and if possible clean tension device. if it is accessible you turn dial to zero and "floss" between tension discs using selvage edge of clean piece of cotton fabric. you can moisten it with denatured alcohol if very dirty. thread sheds dye particles, especially black or cheaper threads. needs to be removed regularly to keep tension discs clean. turn back dial to 5 after and thread up again. often this will resolve the problem

Aug 27, 2011 | Janome Memory Craft 9000 Computerized...

1 Answer

My singer curvy 8780 has a timing issue the needle is scraping on the bobbin casement and will not sew,cleaned and oiled, changed needle turned off and on. any suggestions?

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 06, 2011 | Singer Curvy 8770 Electronic Sewing...

1 Answer

Hi, What steps do I need to take to correct loops on the underside of the fabric. I have changed the needle, re-threaded the machine, switched the bobbin

Looping on the underside is usually your top thread coming through as its not under tension correctly. So rethread the top of the machine carefully, checking your threading diagram in the manual and checking the thread is going between the tension discs carefully.

You also should clean between the tension discs regularly as thread sheds dye particles and fine fibres and this will build up with time. Turn tension dial to zero, then carefully slide in the selvage edge of a piece of waste cotton and slide it back and forwards between the discs carefully to remove any buildup.

Now turn tension dial back to the medium number, usually 4 or 5 is the recommended setting, and rethread top and bottom as per your manual threading diagram, and try again.

There is good general machine maintenance and threading information at, however if the above fails to improve the situation, then perhaps the top tension device has failed and needs replacing.

Mar 09, 2011 | Kenmore 19233 Computerized Sewing Machine

1 Answer

Stitches form loops below te work. i tried to tighten the thread tension & a used the pressure regulator but to no avail. kindly help

If you are getting loops on the underside of your seam, it is usually the top tension that is at fault. Check that the thread is under tension by pulling the top thread just before it goes into your needle with the pressure foot down (most machines don't apply tension until the pressure foot is lowered).

Check the tension dial - is it set to the middle number? usually 5 if the dial goes from 1-10?.

You can also clean between the tension discs - turn the dial to zero and slide the salvage edge of an offcut of light fabric between the tension discs to remove any build up.

Thread will shed particles of dye and filaments as it goes through the tension discs so you need to clean this area regularly.

Now rethread everything, check the tension dial is back to 5 and try again.

There is also good general sewing machine maintenance guides at which I find very useful.

Mar 06, 2011 | Sewing Machines

2 Answers

March 12, 2009 kenmore 385.17922 sewing machine ***this site won't let me ask a question - because it doesn't have this sewing machine in it's PRODUCT LIST...but i'd still like to ask the questions, and...

Dear VeeVeeV,
when I've had that problem it was due to incorrect threading of the top thread. Sometimes it "jumps" out of one of the thread guides, particularly the round one with the tension spring. The bottom thread looping & the machine not sewing is my first clue sometimes that it's done that. good luck, Georgia

Mar 12, 2009 | Singer 3116 Simple

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