Janome AirThread 2000D Professional - Align Threader Shaft with Screw; Adjust Needle Bar Position

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Adjusting Needle Bar Height
 Loosen the 2.0mm hexagon screw and move the needle bar up or down
to the proper position. DO NOT rotate
the needle bar or the alignment
with the presser foot and needle plate will be off.
 Using a 2mm hexagon driver, insert the tip of the driver
into the needle threader shaft hole, lower the needle
threader shaft to align it with the needle bar screw.