Brother International AIRFLOW 3000 Operation Manual - Page 23
Sewing
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English CHAPTER 5 SEWING CAUTION • Do not touch moving parts (such as the knife, needles and loopers) and adjustment parts (such as dials and levers) during sewing. • Do not open any cover during sewing. • If any abnormality is noticed while using the machine, immediately stop it, and contact your authorized dealer. Safety mechanism This machine is equipped with a safety mechanism in order to prevent misuse. In the following cases, the red error indicator LED lights up, and the machine does not operate. • The front cover is open. • The material plate cover is open. • The presser foot lifting lever is raised. 4. Holding all threads with your left hand, turn the handwheel slowly a few times toward you, and check to see that the threads entwine themselves before using the foot controller to sew. Test-sewing Turn on the machine and test-sew before you start sewing. 1. Set all the thread tension to "4". 2. Thread the machine and pull all threads out about 15 cm (6 inches) behind the presser foot. Chaining-off After test-sewing, continue to depress the foot controller slightly and chain off about 10 cm (4 inches). The threads will entwine themselves into a chain automatically. NOTE: If the thread tension is not correctly balanced, the chaining-off result will be uneven. If this happens, pull the threads slightly. Check the threading and adjust the thread tension to create an even chain. (See "CHAPTER 1 Thread tension dial".) 3. Place a piece of scrap material under the presser foot for test-sewing. NOTE: Always lift the presser foot before placing the fabric under it. You cannot start sewing by just running the fabric under the presser foot without lifting it. 21