Brother International AIRFLOW 3000 Operation Manual - Page 18
After threading the loopers, When not to use air threading
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After threading the loopers 1. To separate the pipes, move the air threading switching lever until locked. 2. Close the front cover . Closing the front cover also closes the knife cover . %! $! 3. Lower the presser foot lifting lever. Using the threading wire CAUTION Turn off the machine. IMPORTANT - Do not press the air threading pushbutton while using the threading wire, otherwise the machine may be damaged. 1. Pass 2 to 3 cm (about 1 inch) of the sewing thread through the loop of the threading wire 1. 2. Insert the threading wire into the looper thread insertion hole 2. NOTE: The front cover will not close unless the pipes are separated. When not to use air threading It may be difficult to insert woolly nylon thread or thick thread into the looper thread insertion hole, or threading with these types of thread may not be possible, even after pressing the air threading pushbutton. In these cases, thread the loopers with either of the following methods. • Using the included threading wire • Using thread that can be used with air threading (spun thread) 3. Feed in the threading wire by hand until it comes out of the hole 3 at the end of the looper. 4. Pull out the threading wire until enough thread has come out 4. 16