Fix it !
Check the wiring first. It looks old and crumbly, there may be a broken wire. It looks like it needs to be replaced anyway.
Next, check the switch on the motor. There should also be a switch near the spindle, by the handles (I can't see it in the photos)
If the motor is thermal protected, check the reset button.
If it
is the motor, see what it might cost to have it rebuilt (assuming that you can find someone near you that still rebuilds electric motors). Suitable motors turn up on ebay often, but shipping will just as often kill the deal.
That's one of my favorite DP's. If you can find a slow speed pulley attachment for it you'd be in DP heaven. (they're harder to find, and go for big bucks)
Good luck, and keep us informed.
EDIT :
Here's a link to a PDF version of the manual :
http://www.vintagemachinery.org/pubs/222/1193.pdf