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Bernina hook race & cover replacement problems

I have a Bernina 153 that normally works wonderfully. But every time I clean the hook and hook race, I have tremendous difficulty getting the race hook back in place properly. Are there *clear* photos anywhere that shows how to replace it?

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Posted on Jan 02, 2017

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SOURCE: Bernina Virtuosa 153 Quilter's Edition sewing machine jams

Bernina Virtuosa 150 pressure foot does not go down quite all the way. The stitches don't go straight and are not even. PrewettOE

Posted on Dec 13, 2009

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SOURCE: There is a noise when I sew in the bobbin case

Sounds to me as though you're not pressing the hook retainer back into place properly, or that the spring retainer is not properly engaging with the metal 'pip' on the left-hand-side of the 'U'-shaped hook retainer. You should press the hook retainer back until there is a definite 'click' and you should see the spring clip on the left just move a little bit when it clicks. You definitely shouldn't be able to 'loosen the hook race cover' at all - if you can, the hook will be able to rattle-around in the hook race causing noise and (probably) inconsistent stitch formation. The other thing you mention is that you 'cleaned-out' the hook race, but you didn't mention oiling it. If your machine has got the lightweight hook/shuttle that is black plastic with a metal hook around the outside, Bernina claims these dont need oiling, however, I've found that a small drop of oil will improve the performance of these machines immensely (note a SMALL drop of oil !). If you have an all-metal hook, you most-definitely need to oil it after cleaning ... lack of oil is probably the biggest cause of noise in machines of this type.

Posted on Oct 27, 2011

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Bernina 1008 thread bunching on bottom


"Nesting or Rat's Nesting" on the bottom side of Bernina sewing machines (CB hook type) is generally the result of very loose top tension. If the problem is found in newer sewing machines such as machines made after 1986 (serial numbers beginning with 26xx xxxx), may have an older Bernina bobbin case in the machine. The problem with the older bobbin cases is that the rounded projection of the latch on the left side of the casing will catch thread, preventing easy thread escapement during the take-up lever cycling resulting in loops on the bottom side and or thread breakage, etc..
Note:....Timings and modified latch geometry's were applied to later models to allow for good thread escapement. Older Bernina cases cannot be used on newer machines but newer cases can be used on all CB hook Bernina machines.
Additionally, Chinese copies of the Bernina/Cerliani OEM bobbin are rampant and can cause sewing issues. Always ask for OEM Bernina cases.

Note the following trouble shooting logic:
1. The center tension disk that is visible through the thread slot in the top cover of most machines must be positioned exactly in the middle of the top cover slot. By loosening the fixing screws on the top tension mechanism, one can adjust the disk position to center.
2. It would be a very rare situation for the top tension to change whatsoever from the (red center marking) factory setting. The most likely cause of loose top tension under the normal center mark position, would be accumulated lint, thread, or a sticky substance between the disks. This would prevent the tension compression disks from applying an even tension on the sewing yarn (thread). Often this can be blown out with compressed air when the presser foot lever is lifted in the up position. In some cases, soft drinks and other sticky or corrosive liquids can find their way between the disks. In this case, the tension assembly must be removed, disassembled, and the disks cleaned and polished.
3. Check the facial surfaces of the bobbin case for corrosion, and sticky substances that prevents the thread from easily sliding over the bobbin case.
4. Check that the spindle of the hook body is not bent or warped, causing the bobbin case to wobble, thus creating an intermittent pressure on the hook race cover at the moment that the thread is trying to escape over the bobbin case finger. (Replace the hook body)
5. Inspect the undercut on the hook body spindle for thread wrappings and knots. This condition can cause the bobbin case to press hard against the hook race cover, hence hindered thread escapement .
6. Exceedingly tight bottom tension can cause some problems as well. ( If you don't know how to adjust Bernina bobbin cases to factory settings, please ask).
7. Hook timing, (loop lift) can be out enough to affect thread escapement. This is typical of newer machines made after 1986 since Bernina no longer made fixed timed machines like the earlier Swiss made models. The later made models have timing components that can slip under stressed machine mechanics.
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Feb 13, 2014 | Bernina 1008

1 Answer

Bernina virtuosa 160 is jammed


When you say you were oiling it ... what were you oiling ??? Normally, unless you know what you're doing, you should only oil one part ... the hook. Have you removed the hook, cleaned the hook race, oiled it and then replaced the hook ... if so, have you replaced the hook properly because if not, that could easily cause a jam-up ... check that first. If you removed the head cover and started randomly oiling parts of the needle bar and takeup mechanism, does leaving the head cover off remove the jam ? Have you removed the free-arm cover and started messing-about with the cams etc that drive the feed-dogs ? If so, you may have disturbed the reversing cam - this is mounted on the end of the upper shaft in the free-arm. The other thing you can do is jam up the feed-dog drop mechanism if you replace the front cover with the feed-dog drop button pressed in. Some suggestions to start with ... best suggestion is, however, if you dont know what you're doing, please just restrict yourself to cleaning and oiling the hook ! Shout if I can be of more constructive help.

Jan 31, 2012 | Bernina Virtuosa 160

1 Answer

My mother has a bernina 1008 and now that we have taken the bobbin casing out to clean it won't catch when threaded. Any ideas?


Are you threading the bobbin case correctly - the bobbin should rotate clockwise when pulling the thread out under the tension spring. Are you ensuring that the bobbin case is firmly clicked back into position when replacing it. Check your needle is OK. Did you remove the hook from the hook race when cleaning out - have you oiled the hook race ?

Jan 22, 2012 | Bernina Sewing Machines

2 Answers

My Activa 130 makes a clacking sound when I sew. It is 10 years old. What do you think is wrong? Can I repair this or do I need to take it to be serviced?


I would take it to a Bernina repairman, nice machine and well worth getting it serviced by a qualified technician.

I presume that you've tried the obvious things like a new needle and checking the bobbin case is in correctly.

Sep 03, 2011 | Bernina Activa 130

1 Answer

Should the machine have some oil? Where? It is a Bernina Activa 130


The Activa range is fitted with a light-weight part-plastic hook/shuttle that Bernina claims does not require oiling. However, this does not mean it shouldn't be regularly cleaned and I'd recommend that it is also lightly oiled at the same time. Remove the bobbin case, press the metal lever to the top left of the bobbin door and the black plastic hook/shuttle retainer should pop open so that the hook/shuttle can be removed, or it will just drop out anyway. Use a cotton bud to firmly clean around the inside edge of the hook race (the round piece that the hook/shuttle sits in. Give the whole thing a good clean to make sure any surface grime/fluff is removed. Put a small drop of oil on the running surface of the hook race - the recessed groove around the inside edge, before replacing the hook/shuttle and holding in place by pressing the hook/shuttle retainer back until the securing lever clicks back into place. Rotate the handwheel once to distribute the oil and off you go. Dont overoil but do this regularly and your machine will run much quieter and produce a consistent stitch formation.

Jul 07, 2011 | Bernina Activa 130

1 Answer

Im trying to put back my bobbin in a bernette 60 for bernina


The bobbin you just thread in the bobbin case and pop it back in with the tail pointing up. Now if you are talking about the hook and race cover I'll go over that aswell. The hook is the 1/2moon shaped part, put that in first, it goes opposite of the other 1/2 moon part already in there. Next put the round part over it(race cover). It goes on with the to demples to the inside and the flat part up. Then flit the tabs on the left and right over the race cover. Hope this helps

Mar 24, 2011 | Bernina BERNETTE 65 Mechanical Sewing...

1 Answer

Where is the shuttle race on a Bernina Artista 180? I'd like to be exact as to where to put the drop of oil.


Just to the left of the bobbin case you will see a small lever. Remove the bobbin case and push the lever and that will release the latch which holds the race cover and shuttle (hook).

Clean well with a toothbrush and place one small drop of oil on the edge of the hook where it makes contact with the raceway. Place the hook back and snap the race cover back on.

Oct 01, 2009 | Bernina Artista 180

2 Answers

Bernina Virtuosa 153 Quilter's Edition sewing machine jams


Bernina Virtuosa 150 pressure foot does not go down quite all the way. The stitches don't go straight and are not even. PrewettOE

Apr 07, 2009 | Bernina Sewing Machines

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