Brother International LS-2125i Users Manual - English - Page 54

APPENDIX Symptom The fabric is wrinkled. Stitches are skipped. There is a highpitched noise while sewing. The stitch is not sewn correctly. The fabric does not feed. The sewing light bulb does not come on. Possible cause You have not threaded the upper thread properly or fitted the bobbin properly. You have not fitted the spool properly. You have not used the right combination of fabric, thread and needle. The needle is bent or blunt. If you are sewing thin fabric, the stitch is too thick. The thread tension is incorrect. You have not threaded the upper thread properly. You have not used the right combination of fabric, thread and needle. The needle is bent or blunt. You have not inserted the needle properly. Dust has accumulated under the needle plate or in the shuttle race. Dust has built up in the feed dogs or in the shuttle race. You have not threaded the upper thread properly. The bobbin case is scratched. You have not used bobbin that has been designed for this machine. Insufficient oiling. The presser foot that you are using is not correct for the type of stitch. The thread tension is incorrect. The thread is tangled, for example, in the shuttle race. You have not used the right combination of fabric, thread and needle. The thread is tangled, for example, in the shuttle race. The sewing lamp is damaged. How to put it right Thread the upper thread and wind the bobbin thread properly. Fit the spool properly. Choose a thread and needle that are appropriate for the type of fabric. Replace the needle. Sew with stabiliser material under the fabric. Adjust the tension of the upper thread. Correct the upper threading. Choose a thread and needle that are appropriate for the type of fabric. Replace the needle. Insert the needle properly. Remove the needle plate cover and clean the plate and the shuttle race. Clean the shuttle race. Correct the upper threading. Replace the bobbin case. Contact your retailer or the nearest authorized service center. Incorrect bobbins will not work properly. Only use a bobbin that has been designed for this machine. Make sure to oil the machine once a week if you use it more than an hour a day. If you use it more often, oil every day. Attach the presser foot that is correct for the type of stitch that you want to sew. Adjust the tension of the upper thread. Remove the tangle thread. If the thread is tangled in the shuttle race, clean the shuttle race. Choose a thread and needle that are appropriate for the type of fabric. Remove the tangle thread. If the thread is tangled in the shuttle race, clean the shuttle race. Change the sewing light bulb. Reference page 14, 16 - page 19 page 20 page 31 page 28 page 16 page 19 page 20 page 46, 47 page 46 page 16 - page 12 page 45 page 33, 36, 38, 40, 41 page 28 page 46 page 19 page 46 page 45 52