There should have been a knee bar up in the dome of that case. You insert it into the hole in the front and power the machine with your knee. My Rocketeer is in a cabinet and the foot pedal hangs inside the cabinet. The knee bar presses the foot pedal, so you can sew either way. I put together two quilt tops with that machine and found that I really love the knee bar. I just checked ebay and it looks like you can get the bar there if you don't have it:
http://www.ebay.com/itm/Vintage-Sing...item3a95379e01
Enjoy your new machine.
Darren