When I get the feed dog side gaps corrected between needle plate, tighten top screws (green) to hold position. (Had to move shaft/bar to the left to correct)
Then loosen screws (yellow) to adjust the feed dog moving front to back evenly. (Had to move the hinge unit to the right), it reverses the gap fixed by moving bar to the left to fix needle plate gap.
I tried putting shim between the edge of shaft/bar and foot (right red arrow) and completely freeing the left bolt (left red arrow) but still no success.
Although instructions indicate there is no connection between the two corrections (side gap versus front to back), I’m now wondering if there is. I.e., I should be able to set them independent of each other. Also wondering if I should be moving hinges differently
Any suggestions appreciated. (Using instructions for 1245 as no service Manual for 145).