I bought one which the core looked just as this one does at a garage sale for $5 back in the mid eighties and It is now functioning but only after a crazy amount of work. No repair shop could afford the time to tackle this. However as a labor of love it can be done. The first test is to read the resistance of the primary winding and it should read about 6 ohms. If the power cord is intact you can read it through the plug I would add another .1-.5 ohms if reading on the end of the power cord. If you read 6-6.4 ohms Good. Now connect one of your meter leads to the laminations and make a reading through both prongs of the plug to the core laminations. A reading through the cord to the laminations should be an open circuit ! If both of your reading are good then it is possible to repair the secondary winding but it is some work. You need to find a motor rewinding service in your area and get some winding varnish from them. If your primary tested bad you "could" take to the motor shop and they can wind an identical coil though I don't know what that would set you back today, I would not bother. You will have to get the windings and laminations out of the case and frame then seperate the laminations and remove the two coils. Once you have done that you will spread the windings of the secondary about 1/3" per turn and take a soft wire brush and knock off any scorched varnish. Once you have done this you will have the coil spread a couple of feet and this is how you will brush on at least two coats of varnish leaving no bare spots. I stretched my coil down the work bench and put a piece of duct tape over the area where the wipers ride to keep the varnish off right on the top edge. However the sides where the winding press against one another you need a good layer of varnish. Once the varnish is dry you will compress it till it is just long enough to get in your wifes oven and hang it from one of the wire racks by the two ends of the coil. I do not remember the particulars, temp and time, of the bake but I am sure any electric motor shop you get your varnish from can tell you. In fact I bet you could get them to do the varnish and bake part of the project for not too much $. Once varnished and pressed back to the original length you can hold it together with some loops of tied cord till back on the core. It all goes back together in reverse order. Double check the schematics posted here for your wiring connections. OR YOU COULD PULL OFF THE HANDLES, CASE, WIPERS, LAMP LENSES............ ETC. AND SELL THE PIECES ON EBAY. j
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