Consew Sewing Machines - Page 8 - Recent Questions, Troubleshooting & Support

Belt too loose or miss aligned tighten or realign.

I'm not familiar with your machine but here is a manual that may help. It might be good to review the feed dog height. If the feed dogs are moving forward and back, perhaps they are too low to grab the fabric. http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CCUQFjAB&url=http%3A%2F%2Fwww.consew.com%2FFiles%2F112347%2FInstructionManuals%2F255RB-2.pdf&ei=9N6KVdi1DYvLsAWr4oCoDA&usg=AFQjCNGJOrYBKa2w-PrvW8pXUc9j0MVvig&bvm=bv.96339352,d.b2w&cad=rja

the catcher/hook on the bobbin case system loosen or not fix properly probably becoz of vibration or something( check or replace new), then check upper system either tension/ tighten of your thread/yarn or correct..

I found a manual for your machine that you can download. http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCAQFjAA&url=http%3A%2F%2Fwww.consew.com%2FFiles%2F112347%2FInstructionManuals%2FCN2230R.pdf&ei=ZGtVVaa7OYKRyQTGo4GoBA&usg=AFQjCNG-1xhxBFtfhJZJn7y5QZ_0E1r48w&bvm=bv.93564037,d.aWw

Servicing the Timing is NOT a home fix

It is the knob above your reverse lever. Heres a copy of instruction manual.http://www.consew.com/Files/112347/InstructionManuals/206RB-5.pdf

Here is a link to the Manual: http://www.consew.com/Files/112347/InstructionManuals/199R-1A.pdf

Here is a Manual on the internet: http://www.consew.com/Files/112347/InstructionManuals/199R-1A.pdf

There are several sites that all offer a number of Consew manuals; none for the 166 or 166r. You might fine a model number that is close to yours and see if it looks like yours. http://www.tias.com/cgi-bin/search.fcgi?lc=1&database=%2Faltavista%2Fstores%2Fitems&itemDatabase=%2Faltavista%2Fstores%2Fitems&store=%2Fstores%2Frelics&resultPageTemplate=ResultPage.html&resultItemTemplate=ResultItem.txt&noResultPageTemplate=NoResultPage.html&case=no&minPrice=&max=20&matchAll=0&bothSearch=1&searchText=Consew

Did you try Resources You could also email them at [email protected]

Thread breaks are caused by one of quite a number of reasons on any machine. It could be that there is a burr on the needle plate or along the thread path that is fraying the thread or the needle might be damaged or not seated properly. Another common reason is that the cone of thread has aged and rotted or the thread is simply not traveling in the proper path. And one issue that causes thread breaks, most especially in winter months or in naturally dry environments is a lack of humidity. Use a humidity gauge to determine the humidity around the machine and when the gauge drops below 25, run a humidifier to maintain the humidity up to an average of 30-40 percent.

I doubt you will find one. Consew.com has the instruction and parts book. I have many manuals but don't think I have one for the 99 A parts book will go a long way. Often I have had to rely on it to repair many machines. If you have a specific question contact me or contact Consew.

Parts for these machines can be found at many parts providers. Dunlap Sunbrand in Ky will have them. Henderson Sewing is another. Just google--there are a lot of them

The entire tension assembly will come out intact. There should be a screw (usually about 8-9 oclock) that holds the unit in place. Loosen it and pull assembly out. There will be another screw that holds the big round part (that was back in the machine before removing). Loosen and slide off, then remove and replace spring. Make sure when you install that its not in too far that it keeps your tension discs open all the time or you won't be able to adjust the tensions.

If you are saying the needle is hitting the bobbin case when it goes down then it could be one of two things: 1. Bobbin case not all the way in. This can be caused by debris in the rotary hook or the bobbin case has been hit by the needle and has cracked/and or bent it. Make sure it is snapping into place correctly. 2. The rotary hook is out of time. Reset the rotary hook point behind the needle and about the middle of the scarf of the needle. Make sure you run the needle all the way down and as it starts back up this is where you set the hook.

Most likely your tension is to tight.

oh my that gave me a good laugh and I really needed it. before finding an authorized dealership/ repair shop, i would open it up and make sure it is free and clear of dust thread and dirt. I bet you find stuff in it that locked it into reverse.... good luck

THE SPRING THAT TIGHTENS AGAINST THE THREAD IS BENT OUTWARDS. IT MUST BE BENT INWARDS BY KEEPING THE TIP HELD UP WHILE YOU PUSH DOWN ON THE SPRING WITH A SMALL SCREWDRIVER. THIS WILL BEND THE METAL INWARDS. NOW, WHEN YOU TIGHTEN THE SPRING AGAINST THE THREAD IT SHOULD TIGHTEN AND LOOSEN AS YOU ADJUST IT. TO ADJUST YOU JUST NEED TO HANG THE BOBBIN FROM YOUR FINGER AND BOB IT UP AND DOWN. WHEN YOU ADJUST IT PROPERLY THE BOB WILL CAUSE THE THREAD TO EXTEND ONE INCH. THIS HAS NOTHING TO DO WITH TIMING SO DON'T BE CONCERNED ABOUT THIS.

If the feed dog stays in one position and just moves up and down, and doesn't pull the fabric through, press on the button in the bed closest to the needle bar. Hold it down and rotate the wheel. This adjusts stitch length/feed dog travel. There should be numbers on the wheel or under a flat metal panel next to the wheel. The numbers are for stitches per inch.
The problem you describe isn't timing, it's most likely stitch/feed dog adjustment.