New Home My Lock 134D Serger. The right needles keeps breaking. Yesterday I realize it is hitting the pressure foot. I have changed out the needle (size 14) about 7 or 8 times now. I have adjusted the tension. I don't know what else to try to eliminate the problem. I was sewing on denim but the needle also broke when sewing on a cotton. My manual says size 14 needle for denim. Thank you for you input.

Here's a manual that may be helpful:

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjaoN6jmu3YAhUIwWMKHYbqCTIQFggnMAA&url=http%3A%2F%2Fwww.supsew.com%2Fdownload%2FRimoldi%2FRimoldi%2520327%2C%2520329%2C%2520330%2520Instruction%2520handbook.pdf&usg=AOvVaw14vMdQONgR_VnA0x-U7wfb

Could be: Wrong needle size for fabric: The presser foot is not the correct one for the type of stitch you want to sew: The needle clamp screw is loose. Hope this helps.

SKIPPED STITCHES ON A SERGER
1. Is the needle bent or worn--replace
2. Is the needle inserted correctly into the needle holder--check needle
3. Is the Serger threaded correctly--rethread
4. Is the presser foot pressure right for the fabric--adjust

Hello,
Here are a few things to check. You may have checked some of these already but it may be worth checking again.


* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but check your manual), make sure that it goes all the way into the holder, and that the screw is securely tightened.

If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot
Make sure it’s attached securely.

* Change your pressure foot
Your pressure foot may be bent, causing your needle to hit it.

* Don’t sew over pins
A needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.

* Don’t pull your fabric as you sew
You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.

* Check your needle plate
Make sure it's securely in position.

* Change your needle plate
If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for sewing fine, delicate fabrics, switch to a needle plate with a wider hole.

* Check the position of your needle
Sewing machines with zigzag capability allow you to adjust the position of your needle – right,left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.

I hope this helps.

Hello,
Here are several solutions for you to try.

* Your broken needle may have been too thin for your fabric. Make sure your replacement needle
is appropriate for the weight and type of your fabric and thread. You may also need a thicker needle if you’re sewing through bulky layers of fabric. When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but consult your manual), that it goes all the way into the holder, and that the screw is securely tightened.


If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot to make sure it’s attached securely.

* Change your pressure foot. Your pressure foot may be bent, causing your needle to hit it.

* Don’t sew over pins. A needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.

* Don’t pull your fabric as you sew. You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.

* Check your needle plate to make sure it's securely in position.

* Change your needle plate. If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for sewing fine, delicate fabrics), switch to a needle plate with a wider hole.

* Check the position of your needle. Sewing machines with zigzag capability allow you to adjust the position of your needle, right,left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.


I hope this helps.

Hello,
Here are several things to try.

* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but consult your manual), that it goes all the way into the holder, and that the screw is securely tightened.


If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot and make sure it’s attached securely.


* Change your pressure foot Your pressure foot may be bent, causing your needle to hit it.


* Don’t sew over pins a needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.


* Don’t pull your fabric as you sew. You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.


* Check your needle plate and make sure it's securely in position.


* Change your needle plate. If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for sewing fine, delicate fabrics), switch to a needle plate with a wider hole.


* Check the position of your needle. Sewing machines with zigzag capability allow you to adjust the position of your needle – right, left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.


* Un-thread your machine and remove your bobbin. Clean any loose thread or lint out of your
bobbin case. Re-thread your machine, reinsert and re-thread your bobbin.

* Change your bobbin. There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.

Also, before you start to sew a seam, hold the upper and bobbin thread tails. Hold them back
and out of the way as you sew your first couple of stitches. This will keep them from getting
caught in your machine.

I hope these solutions help you.

Hello,
Here are some solutions to try.

* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side away from the bobbin, but consult your manual), that it goes all the way into the holder, and that the screw is securely tightened.


If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot and make sure it’s attached securely.


* Change your pressure foot Your pressure foot may be bent, causing your needle to hit it.


* Don’t sew over pins a needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.


* Don’t pull your fabric as you sew. You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.


* Check your needle plate and make sure it's securely in position.


* Change your needle plate. If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for sewing fine, delicate fabrics), switch to a needle plate with a wider hole.


* Check the position of your needle. Sewing machines with zigzag capability allow you to adjust the position of your needle – right, left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.

Hope this helps.

Hello,
Here are a few things to try.

* When you insert anew needle, make sure it’s positioned correctly. Usually with the flat side
away from the bobbin, but consult your manual. Make sure that it goes all the way into the holder, and that the screw is securely tightened.


If there doesn’t seem to be a problem with your needle, try the following:

* Check your pressure foot
Make sure it’s attached securely.

* Change your pressure foot
Your pressure foot may be bent, causing your needle to hit it.

* Don’t sew over pins
A needle that hits a pin can break. Always remove the pins from your fabric before they reach
your needle.

* Don’t pull your fabric as you sew
You could be bending your needle back, causing it to hit your needle plate instead of going into
the hole. Just guide your fabric, letting it feed on its own.

* Check your needle plate
Make sure it's securely in position.

* Change your needle plate
If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for
sewing fine, delicate fabrics), switch to a needle plate with a wider hole.

* Check the position of your needle
Sewing machines with zigzag capability allow you to adjust the position of your needle – right,
left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or
pressure foot.

I hope one of these solutions help you.

Hello,
Here are some things to try.

* Your broken needles may have been too thin for your fabric. Make sure your replacement needle is appropriate for the weight and type of your fabric and thread. You may also need a thicker needle if you’re sewing through bulky layers of fabric.

* When you insert your new needle, make sure it’s positioned correctly (usually with the flat side
away from the bobbin, but consult your manual), that it goes all the way into the holder, and
that the screw is securely tightened.


If this doesn’t seem to be the problem

* Check your pressure foot
Make sure it’s attached securely.

* Change your pressure foot
Your pressure foot may be bent, causing your needle to hit it.

* Don’t sew over pins
A needle that hits a pin can break. Always remove the pins from your fabric before they reach your needle.

* Don’t pull your fabric as you sew
You could be bending your needle back, causing it to hit your needle plate instead of going into the hole. Just guide your fabric, letting it feed on its own.

* Check your needle plate
Make sure it's securely in position.

* Change your needle plate
If you’ve been using a straight stitch needle plate (a plate with a small hole, often used for
sewing fine, delicate fabrics), switch to a needle plate with a wider hole.

* Check the position of your needle
Sewing machines with zigzag capability allow you to adjust the position of your needle – right, left, or center. If your needle is not positioned correctly, it may be hitting your needle plate or pressure foot.

I hope this helps.

your machine probably needs to be retimed.