Brother International DZ3400 Operation Manual - Page 108
While sewing, The sewing, machine does not, work., Fabric being, sewn with the, machine cannot,
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APPENDIX ■ While sewing Symptom Possible cause How to put it right The machine is not plugged in. Plug the machine in. The main power switch is turned off. Turn on the main power switch. The bobbin winder shaft is pushed to Move the bobbin winder shaft to the the right. left. The sewing You have not used the foot controller properly. Use the foot controller properly. machine does not The foot controller or the start/stop work. button was not pressed (for models equipped with the start/stop button). Press the foot controller or the start/ stop button. The presser foot lever is raised. Lower the presser foot lever. The start/stop button was pressed, even though the foot controller is connected. (for models equipped with the start/stop button) Do not use the start/stop button when the foot controller is connected. To use the start/stop button, disconnect the foot controller. Fabric being sewn with the machine cannot be removed. Thread is tangled below the needle plate. Lift up the fabric and cut the threads below it, and clean the race. The spool or spool cap is incorrectly Correctly install the spool or spool installed. cap. The upper thread was not threaded correctly. Correct the upper threading. The needle is incorrectly installed. Correctly install the needle. The needle clamp screw is loose. Use the disc-shaped screwdriver to firmly tighten the screw. The needle is bent or blunt. Replace the needle. 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. The needle breaks. 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. The upper thread tension is too tight. Loosen the upper thread tension. You are pulling the fabric too much. Lightly guide the fabric. The area around the hole in the needle plate is scratched. Replace the needle plate. Contact your retailer or the nearest authorized service center. The area around the hole in the presser foot is scratched. Replace the presser foot. Contact your retailer or the nearest authorized service center. The bobbin case is scratched. Replace the bobbin case. Contact your retailer or the nearest authorized service center. You have not used a 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. Reference page 14 page 14 page 20, 21 page 14 page 42 page 41 page 42 page 99 page 26 page 25 page 32 page 33 page 32 page 31 page 82 page 43 - - - - page 17 106