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Design Feature Function Tested
Horizontal and Vertical columns Thread Tension (upper and lower)
Circles Belt Tension
Rose Thread breaks on long stitches
Diamond Registration
Horse & Buggy Orientation
Spiral Thread breaks
Alphabet Small letter problems
Triangle Fill and Outline Looping
Tricolored Diamond Fill Thread Break Sensor
Mark Trim Trimmer/Grabber
Knit Material Embroidery on Knit Material
It is important that the appropriate tests are run on the machine after all major repairs or adjustments.
These tests validate repairs and adjustments made to the machine and help to identify whether repairs
and adjustments were successful.
Thread Tension Test
The thread tension test tests for upper and bobbin tension. When you look at the back side of the sewn
material, approximately 1/3 of the width of the bars should show bobbin thread. This however, is sub-
ject to a variety of conditions, such as the type of thread being used, material thickness and weight, and
quality of thread and material.
The thread tension test should be sewn with not more than one thread break for the entire design. It
should be sewn on one layer of white broad cloth (or any white polyester material) or the equivalent with
one layer of backing.
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