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Check the
field resistance with the plug disconnected.BTW what flavor of E-15 do
you have. Field reversed or armature reversed ? It will have a bearing
on diagnosis. RJ Steve Gaarder wrote: My E15 is having problems. When I try to run the motor (in neutral) it shudders in the lowest speed and spins very fast in the higher speeds, drawing lots of current. Sounds like no power to the field, right? I disconnected the armature (at the resistors) for sanity, measured the voltage at the field terminals, and see full battery voltage. The in-circuit resistance of the field terminals is 31 ohms. Do I have an open or partially open field coil? Anything else it could be? Where's the best place to get a replacement motor, or is it worth having it rewound? |