Issue link: https://docs.hic.us/i/403552
burn the thread or fuse the plastic compounds to the needle, thus causing thread breaks. Some materials are so abrasive that the thread is actually sanded down as the stitch loops are pulled through the material by the take-up arm. For such materials, try one or combinations of the following; (1) Use a sharp or wedge point needle. (2) Use a Teflon coated needle. (3) Use a stepped or tapered needle, which opens a larger hole. (4) Reduce the machine speed. (5) Re-digitize the design with longer stitch lengths. (6) Use silicone thread lubricant. (7) On some materials, use a smaller needle. Improper Framing Of Goods. Excessive play in hooped goods can cause the needle to deflect too much, and break both needle and thread. Wrong Kind Of Spray Adhesives. Screenprinters' adhesive used for holding items to a printing pallet is too tacky for embroidery use. It will cling to the needle and cause thread breaks. Use only spray adhesive designed for embroidery applications. Always spray away from the machine on to the loose goods, catching the over spray on paper or cardboard. Keep spray off the floor and use in well-ventilated areas only. Follow all label directions. Use correct protective gear. Mechanical Problems Wrong Needle Depth. This usually manifests itself in the form of thread splitting where one ply peels back. The thread eventually breaks, leaving previous stitches thinned out. Hitting a hoop or frame is a common way to throw off the needle depth. Wrong Timing. This shows up in many ways, from broken needles and no stitching, to poor quality stitching and occasional thread breaks. Trimmers Not Working Properly. If the trimming mechanism is not functioning properly, you can experience anything from threads not being cut all the way, to design tails being cut too short. Needle Too Close To Hole In The Needle Plate. This causes thread to rub against the edge of the hole in the needle plate and eventually break. Nick Or Burr On Needle. Usually caused by a needlepoint hitting on one of these parts: presser toot, edge in needle plate, rotary hook or retainer. Hook Basket Retainer Too Close. www.hsi.us care@hic.us 216