Re: Bob M or John T, W6 electrical problems

Posted by Clip41A on March 19, 2007 at 13:26:24 from (138.29.80.220):

In Reply to: Re: Bob M or John T, W6 electrical problems posted by Bob M on March 19, 2007 at 12:33:41:

Bob and Chad:

When I did this on my 'A' a number of years back, I actually had to run the generator as a motor for a few seconds with correct polarity to get it to take the proper polarity.

I think the repeated use while it was wired as a negative ground has permanently 'set' the magnets to produce a positive charge at the 'bat' terminals (i.e. negative at the ground, positive at the 'bat'). You can reverse this 'set' by repeated polarizations in the opposite direction (which is what running it as a motor does).

I'm working from memory here, but I think you can check the voltage at the 'bat' terminal by disconnecting the 'bat' (charging) wire and using a voltmeter to chekc the voltage at the 'bat' temrinal relative to chassis ground. If you take care with the voltmeter leads, you should read 6 volts at the battery (red to positive, black to negative).

At your generator, you should read 8 volts or so at the 'bat' terminal (wire leading to ammeter disconnected). This is again red to positive (chassis) and black on the 'bat' terminal itself.

My nickle bet is that you are getting NEGATIVE 8 volts at your 'bat' terminal. if so, polarization is the problem.

Good luck,
Clip

Replies:

• Re: Bob M or John T, W6 electrical problems chadd 14:32:22 03/19/07 (0)
• Re: Bob M or John T, W6 electrical problems Clip41A 13:42:43 03/19/07 (2)
  • Re: Bob M or John T, W6 electrical problems chadd 14:13:07 03/19/07 (1)
    • Re: Bob M or John T, W6 electrical problems Bob M 18:01:38 03/19/07 (0)

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