Brother International DZ2400 Operation Manual - Page 110
pitched noise
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APPENDIX Symptom Possible cause How to put it right Reference The fabric is wrinkled. The presser foot you are using is not appropriate for the type of stitch that you want to sew. The thread tension is incorrect. Attach the presser foot that is correct for the type of stitch that you want to sew. Adjust the tension of the upper thread. page 81 page 43, 98 You have not threaded the upper thread properly. Correct the upper threading. page 25 Stitches are skipped. You have not used the right combination of fabric, thread and needle. The needle is bent or blunt. The needle is incorrectly installed. Choose a thread and needle that are appropriate for the type of fabric. Replace the needle. Correctly install the needle. page 31 page 32 Dust has accumulated under the needle plate or in the race. Remove the needle plate cover and clean the plate and the race. page 91 Dust has built up in the feed dogs or Remove the needle plate cover and in the race. clean the plate and the race. page 91 There is a highpitched noise while sewing. You have not threaded the upper thread properly. The bobbin case is scratched. Correct the upper threading. Replace the bobbin case. Contact your retailer or the nearest authorized service center. page 25 - You have not used bobbin that has been designed for this machine. Incorrect bobbins will not work properly. Only use a bobbin that has been designed for this machine. page 17 The feed dogs are lowered. Slide the feed dog position lever to . page 57, 67 The stitch is too fine. Lengthen the stitch length. page 40 You have not used the right combination of fabric, thread and needle. Choose a thread and needle that are appropriate for the type of fabric. page 31 The fabric does not feed. The thread is tangled, for example, in the race. Remove the tangle thread. If the thread is tangled in the race, clean the race. page 91, 95 The presser foot you are using is not Attach the presser foot that is correct appropriate for the type of stitch that for the type of stitch that you want to you want to sew. sew. page 81 The needle is bent or blunt. Replace the needle. page 32 Zigzag foot "J" is slanted on a thick seam at the beginning of stitching. Use the presser foot locking pin (black button on the left side) on zigzag foot "J" to keep the presser foot level while sewing. page 45 The fabric feeds in the opposite The feed mechanism is damaged. direction. Contact your retailer or the nearest authorized service center. - 108