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How to Fix Bobbin Thread Tension

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Embroidery Machine Threading and Tension Guide

Proper threading and tensioning are crucial to achieving high-quality embroidery results. Improper threading can cause issues such as skipped stitches, looping, thread breakage, and bird-nesting. On the other hand, proper thread tensioning is essential for trouble-free, high-quality embroidery. Most thread breaks are caused by poor tension.

Follow these steps to fix bobbin thread tension:

  1. Run a pattern test with an "H" or "I" file to test your tension.
  2. After the test pattern has been stitched out, flip over your fabric and check the ratio of bobbin to top thread.
  3. Perfect tension is when there is 1/3 bobbin thread running down the middle and 1/3 top thread on each side.
  4. If there is not enough bobbin thread showing on your "H" or "I" test, loosen the large flat head screw on the metal bobbin case to loosen the bobbin tension.
  5. If there is too much bobbin thread showing on your "H" or "I" test, tighten the large flat head screw on the metal bobbin case to tighten the bobbin tension.

Why Bobbin Thread Tension is Important:

Proper bobbin tension is crucial for good embroidery. If the tension is too tight, unwanted bobbin thread may appear on top of your garment, leading to frequent thread breaks and wasted time and money. On the other hand, if the tension is too loose, your thread may begin looping. Bobbin tensions should be between 18 to 22 grams (up to 25 grams when embroidering caps).

Keep an Eye Out for Looping:

Looping of the top thread or bobbin thread showing on top of your design are an indication of improper tensioning. If your tension is too loose, your thread will begin looping; too tight, bobbin thread may appear on top, leading to frequent thread breaks and wasted time and money.

Helpful Tip: You can find videos on how to thread your machine in your customer portal under the Pre-Training tab.

If you still have difficulty threading your machine, refer to the threading section in your machine's operating manual for step-by-step instructions for your specific model. If you are still experiencing bobbin thread on top of your garment after tensioning your bobbin thread, make sure you are not using a damaged bobbin case, as this may cause undesirable results.

Other factors that can cause thread breaks include improper top thread tensioning and damaged needles. Old needles may produce burrs and lead to frequent thread breaks. If you need additional help, don't hesitate to reach out to customer support for assistance.

Need additional help? 

Please don’t hesitate to reach out to us for further assistance via email at service@ricoma.com or by visiting our support page at www.ricoma.com/US/support. 

Video Resources: 

A Beginner's Guide to Thread for Embroidery Machines 

MT-1501: The Bobbin 

EM-1010: The Bobbin 

TAGS:
BOBBIN TENSION
Need additional help?
Please don’t hesitate to reach out to us for further assistance via email at service@ricoma.com or by visiting our support page at www.ricoma.com/US/support.