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Re: C charging problems revisted
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Posted by Roger Mills on November 14, 2006 at 05:50:00 from (204.13.130.86):
In Reply to: C charging problems revisted posted by Tim Mattson on October 28, 2006 at 17:53:28:
Hope this helps cuz it relates to my A. Wouldn't charge. Had gen checked at a shop-OK. VR is just a voltage cutout and points are set for 6.7-7.1 volts at the battery, after it works. The moveable brush is the top side of the field and closer to the armature brush the more current it will put out, no current coil in VR. There is a resistor to ground in the VR that connects to the field post, and a wire to a resistor at the light switch. Check all connections for paint rust etc. and connect a wire from the ground side of the resistor at the light switch to the frame so you are not depending on the ground screws for the cover plate. Here is what should happen, with the field post grounded 16-18 amps to a discharged battery, adjust brush for this. Also adjust the VR coil spring for 6.9 v + - 0.2v. Then connect the wire from the field post to the VR. Current will be 3-4 amps to a discharged battery. Connect wire to light switch with it turned CCW to the off detent, current 8-9 amps. Disconnect lights and turn light switch on, 16-18 amps. The two resistors are the same and available from Delco, 30-40 ohms each. The light switch shorts the field to ground when on so high current.
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