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Feed dog height
Check
When the feed dog is in it’s highest position it should be 0.9 to 1.05 mm from the surface of the needle plate.
Adjustment
1. Turn the hand wheel until the feed dog comes to its highest position.
2. Remove the lower free arm cover.
3. Turn the adjusting screw (a) so that the feed dog height is between 0.9 mm to 1.05 mm from the surface of the needle
plate (A).
Clockwise = the feed dog will be raised.
Counter-clockwise = the feed dog will be lowered.
4. Attach the lower free arm cover.