Janome AirThread 2000D Professional - Lower Looper Height; Position Lower Looper Gauge; Adjust Lower Looper Height to 65.7 mm

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Lower Looper Height
 If it is at an incorrect height, loosen the Philips head screw, move the
looper up or down to the 65.7mm position. When done, tighten the
screw. Please DO NOT overtighten the screw
.
 Place the lower looper gave U groove
onto the lower looper shaft. The tip of the
looper should be parallel with the guide
line.