Feed Dogs should be set so that the teeth of the Dogs are below the Needle Plate during the return (forward) stroke. If they are above, back feeding and skipping will occur.

The height of the Feed Dogs are adjusted on the 15,17 and 18 class machines by loosening the Feed Dog Screw and raising or lower the Feed Dog to the desired position, then tighten the Feed Dog Screw.

On the FJ, and FJT Class machines the feed Dog height is adjusted by loosening the Screw on the Feed Adjusting Wedge 21575.

Sliding the Wedge forward and back raises and lowers the Feed Dog.

Once the Dog is in its desired poison, tighten the Screw holding the Feed Adjusting Wedge.