Posted by ScottyHOMEy on February 25, 2009 at 11:36:49 from (70.105.240.166):
In Reply to: Light switch problems posted by neblinc on February 25, 2009 at 11:17:52:
#1. You did polarize the generator, right?
Was wondering, after I saw your pic the other day, if that resistor was going to make it. The strip in the center is usually straight. When mine was't working, I found that the wires that make the winding weren't making a good contact to the hollow rivets that anchor it to the switch. A couple dabs of solder and, viola!
To test it, hook an ohmmeter to each of the rivets. If you get no continuity at all, test from the middle of the winding to each of the rivets. If you don't get continuity that way, test it up closer to the rivet on the winding. That should show up any break in the winding. It may be as simple as my problem.
If you do find the continutiy to be okay, hae your ohmmeter set on it's coarsest setting, as correct resistance is only a few ohms as I recall, maybe 3-5??? BobM and JimN are much better for those numbers than I am.
Still, even if the resistor were bad for whatever reason, it is only in the circuit when the switch is in the low charge position (fully CCW) and you should be showing a charge with the switch in the H position (one click turning clockwise), which takes the resistor out of the circuit.
Other thoughts . . . too much paint and not getting a good ground somewhere (like when grounding the field wire), bad ammeter, loose dirty connection . . . those are the things that come first to mind that might keep some of the tests on John T's very good list from revealing the problem.
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