Common Faults and Treatment Methods of Overlock Sewing Machines

Overlock sewing machines are also called edge machines, edge machines, and bone machines. They are generally divided into three-thread, four-thread, and five-thread machines. The main function is generally to prevent the seams of clothing from pilling. Overlock sewing machines can not only be used for edge binding, but also sewing T-shirts, sportswear, underwear, knitwear, and other fabrics. Overlock sewing machines can cut and sew simultaneously, and the seams are like mesh, which is also suitable for elastic fabrics. During use, it may have one or another fault due to various reasons, so that it cannot continue to work. When these faults occur, specific analyses should be made based on the structural principle and performance of the machine. The inspection scope should be gradually narrowed, the cause should be found as soon as possible, and eliminated in time. Various common faults and maintenance methods are introduced as follows:

Overlock Sewing Machine Thread Breakage

(1) Check Thread Quality: Use high-quality thread appropriate for your fabric.

(2) Re-thread Machine: Ensure the machine is threaded correctly. Misthreading can cause tension issues.

(3) Adjust Tension: Too much tension can cause the thread to snap. Adjust the tension settings gradually until the thread runs smoothly.

(4) Inspect Needle: A damaged or dull needle can cause thread breakage. Replace the needle if necessary.

Overlock Sewing Machine Skipped Stitches

(1) Check Needle Position: Ensure the needle is correctly installed and not bent. It should be at the right height for your fabric.

(2) Select the Right Needle: Use a needle appropriate for the fabric type (e.g., ballpoint for knits, sharp for woven fabrics).

(3) Examine Feed Dogs: Ensure feed dogs are clean and functioning properly. If they are damaged, they may need to be replaced.

Overlock Sewing Machine Fabric Not Feeding Properly

(1) Check Presser Foot Pressure: If the pressure is too light, the fabric may not be fed properly. Adjust the pressure as needed.

(2) Inspect Feed Dogs: Ensure they are not clogged with lint or debris. Clean them if necessary.

(3) Use the Correct Foot: Ensure you are using the appropriate presser foot for the type of fabric.

Overlock Sewing Machine Seams are Uneven or Fabric Wrinkles

(1) Adjust Tension Settings: Uneven tension can cause puckering. Make adjustments to the upper and lower thread tensions.

(2) Use Appropriate Stitch Length: A stitch that is too short can create tension. Adjust to a longer stitch length for better results.

(3) Stabilize Fabric: For lightweight or stretchy fabrics, consider using stabilizers to prevent movement.

Overlock Sewing Machine Jamming

(1) Remove Fabric: Gently pull the fabric to see if it releases the jam. Avoid forcing it.

(2) Check for Thread Tangles: Inspect the threading path for tangled threads and remove any knots.

(3) Clean the Machine: Lint and debris can accumulate and cause jams. Regularly clean the machine to keep it functioning smoothly.

The cost of overlock machine is high, so regular machine inspection is also very necessary.  Regular maintenance and inspection of the overlock machine can effectively avoid the occurrence of the above faults. Mastering the handling methods of common faults can help you respond in time, improve work efficiency, and ensure sewing quality. We hope these tips can help you use the overlock sewing machine better and complete every sewing project. Longsew focuses on industrial overlock machine for sale, if you want to know more about overlock sewing machine price, please do not hesitate to contact Longsew to get overlock machine price list!