12. Checking the Thread Tension

Check the embroidery to see if it was sewn with the correct thread tension. If the thread tension is not adjusted correctly, the stitching may be uneven or there may be puckering in the fabric.

■Correct thread tension

From the wrong side of the fabric, the bobbin thread should be about one third of the stitch width.

(Right side)

(Wrong side)

If the embroidery appears as shown below, the thread tension is incorrect. Correct the thread tension.

(Right side)

(Wrong side)

The tension of the upper thread is too tight, resulting in the lower thread being visible from the right side of the fabric.

Loosen the tension dial by turning the dial counterclockwise.

(Right side)

(Wrong side)

The tension of the upper thread is too loose, resulting in a loose upper thread, loose thread locks or loops appearing on the right side of the fabric.

Tighten the tension dial by turning the dial clockwise.

For details on adjusting the thread tension, refer to “Adjusting the Thread Tension” on page 85.

Note

●In this tutorial, the thread tension was checked after embroidering was finished. However, normally, embroidering should be temporarily paused and the thread tension should be checked after the first 100 stitches of each color sewn with each needle bar.

●The resulting embroidery may not appear as expected, due to the type or thickness of the fabric being sewn or to the type of stabilizer material used. Be sure to sew a trial embroidery before sewing on your project.

Memo

●In the built-in embroidery patterns, one pattern is used for checking the thread tension. For details, refer to “Checking the thread tension of built-in patterns” on page 160.

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Brother PR-620 operation manual Checking the Thread Tension, Correct thread tension
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PR-620 specifications

The Brother PR-620 is a state-of-the-art embroidery machine that caters to both amateur enthusiasts and professional embroiderers. It is renowned for its versatility, combined with an array of advanced features that facilitate creating intricate designs with ease.

One of the standout features of the PR-620 is its six-needle capability, which allows users to embroider with multiple colors without the need for constant thread changes. This efficiency saves time and enhances productivity, particularly for those working on large or complex projects. The machine supports an extensive range of thread colors, making it easier to bring vibrant designs to life.

The PR-620 is equipped with a large 10.4-inch LCD touchscreen display that allows for intuitive navigation and control. Users can customize designs, adjust settings, and preview their work with exceptional clarity. The interface is user-friendly, making it accessible for beginners while still offering advanced options for seasoned users.

In terms of technology, the Brother PR-620 features a high-speed embroidery mechanism that can achieve approximately 1,000 stitches per minute. This remarkable speed doesn’t compromise the quality of stitching, ensuring that each design is executed with precision. Coupled with the automatic needle threader, threading becomes a hassle-free task.

Another noteworthy characteristic is the PR-620’s built-in embroidery designs and fonts. The machine comes pre-loaded with a wide selection of designs and includes the capability to import custom designs via USB connectivity. This feature empowers users to create personalized projects effortlessly.

Additionally, the PR-620's advanced color sorting and thread trimming capabilities contribute significantly to minimizing thread waste. Users can enjoy efficient stitching with fewer interruptions, enhancing their overall workflow. The machine also includes a range of hoop sizes, accommodating various project dimensions, from small patches to larger embellishments.

The durable construction of the Brother PR-620 ensures reliability and longevity, making it a smart investment for anyone serious about embroidery. The machine is not only designed for functionality but also prioritizes user comfort during extended use.

In summary, the Brother PR-620 stands out in the embroidery machine market due to its innovative features, rapid stitching speeds, and user-friendly interface. Whether for home projects or business endeavors, the PR-620 provides excellent performance, versatility, and quality that meet the evolving needs of embroiderers.
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