Brother International PR1050X Operation Manual - Page 297

APPENDIX Symptom The upper thread breaks. The bobbin thread breaks. Stitches are skipped. The embroidery pattern is misaligned. Probable Cause Lint or dust has accumulated in the thread tension disc. The bobbin thread is not correctly threaded. The bobbin is scratched or does not rotate smoothly. The bobbin case is damaged. The thread is tangled. A bobbin designed specifically for this machine is not used. Lint or dust has accumulated in the thread tension disc. The upper thread is not threaded correctly. The needle is bent or blunt. The needle is not installed correctly. Dust has accumulated under the needle plate or in the hook. The needle and the hook are not correctly passing each other. The thread twist is either too tight or too loose. The thread is tangled. The fabric is not secured in the embroidery frame (for example, the fabric is not taut). The embroidery frame is too large for the size of the embroidery. The thumbscrews on the embroidery frame holder are loose. Stabilizer (backing) is not used. The embroidery frame is not correctly attached to the carriage. The carriage or the embroidery frame is hitting objects. The fabric is caught or pinched. Remedy Remove the tension dials, and then remove any lint or dust accumulated between the felt washers. Correctly thread the bobbin thread. Replace the bobbin. Replace the bobbin case. Remove the thread jammed and clean the hook. Use the correct bobbin. Remove the tension dials, and then remove any lint or dust accumulated between the felt washers. Thread the upper thread correctly. Replace the needle with a new one. Correctly install the needle. Clean the hook and the needle plate. Consult your nearest authorized Brother dealer. Improper twisting results in irregular loop formation. Try using a new spool. Use tweezers to remove any tangled thread from the hook. If the fabric is not taut, the pattern may become misaligned or the stitching may shrink. Be sure to correctly frame the fabric in the embroidery frame. Use an embroidery frame that is close to the size of the embroidery. Use the included disc-shaped screwdriver to firmly tighten the thumbscrews. Use stabilizer (backing) when embroidering on thin or stretch fabrics, fabrics with a coarse weave or fabrics that easily allow the stitching to shrink. Use hard stabilizer when embroidering on a cap made of soft material. Correctly attach the embroidery frame to the carriage. Make sure that the pins on the left and right arms of the embroidery frame holder securely fit into the holes in the handles on the embroidery frame. The pattern may become misaligned if the carriage or embroidery frame is hitting objects. Make sure that there are no objects within the operating field of the embroidery frame. Stop the machine, and then correctly position the fabric. Reference Page p.287 p.36 p.36 p.36 p.284 p.33 p.287 p.57 p.33, 86 p.86 p.284, 285 p.48, 93 p.88 p.30 p.92 p.50 7 295