Do i have a gear problem with my necchi lydia 3... I oiled the machine and worked with it

Question

I oiled the machine  and worked with it to get it to run but in looking under the black end cover it looked like there were  two worm gears one turned the vertical one did not.  Should it? 

Interesting! We have the same problem with my Lydia 3. The shaft with the cams for zig-zag and decorative stitches doesn't turn. It appears that the worm gear is fine, but the gear at the top of the shaft holding the cams does not turn. Help!!