To Adjust The Height Of The Lower Looper - Janome 990D Service Manual

990D
Correct Setting:
The height of lower looper is 65.7 mm from the center of lower looper shaft as shown in illustration.
To adjust:
1. Set the upper knife in down postion to loosen setscrew A.
2. Turn the hand wheel to get the lower looper in rightmost position.
3. Replace the lower looper.
4. Turn the handwheel to get the lower looper in leftmost position.
5. Insert the gauge downwards into the lower looer shaft as shown.
6. Loosen setscrew A, and move the lower looper up or down to get the tip off lower looper is in
line with guide line of gauge.
7. Tighten setscrew A.
8. Remove the gauge and set the upper knife in up position.
NOTE: You can adjust the height of lower looper without removing the lower looper thread guide.

TO ADJUST THE HEIGHT OF THE LOWER LOOPER

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