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The needle in the C slot of my Husquavarna 936 won't stay in

The needle in the C slot of my Husquavarna 936 Serger will not stay in place when it has been reinserted after working in a 3 thread mode. The set screw appears to be fine but will not tighten against the needle. I have tried different needles and the problem remains. Any ideas?

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  • jrattt May 19, 2009

    Thank you.  I will pursue changing the clamp.

  • radcal May 11, 2010

    Are your C and D screws both on the right side of the clamp, one above the other or do you have one on the right side and one on the left? If you have one to either side, you may want to have the clamp replace for the more modern design.



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Make sure you have backed out the screw almost all the way, grab the needle with a pair of needle nose pliers and push the needle up with "gentle" force to make sure it's up all the way. When you tighten the screw without a needle in the hole (when 3 thread sewing) the screw makes an indentation inside the needle hole. That indentation stops the needle from reaching it's upper most position. By "gently" forcing the needle up in the holder all the way, you correct the opening for the needle by breaking out that tiny imperfection. Your needle screw then can hold the needle correctly.

Posted on Oct 10, 2009


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