Re: 6v, 12v negative or positive ground?

Posted by Bob M on March 30, 2009 at 10:38:32 from (151.190.254.108):

In Reply to: 6v, 12v negative or positive ground? posted by Maniak on March 30, 2009 at 09:57:14:

Mark - A couple ways to determine ground polarity/voltage:

1 - Look at the voltage regulator. It MAY be marked for both voltage and polarity.

2 - With the jump box connected, turn on the lights or ignition and note which way the ammeter deflects. If it goes toward the left (discharge) your ground is correct. However if it deflects right (charge) the jump box is grounded backward.

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Once the jump box is grounded correctly re-polarize the generator (jumper the BAT and ARM terminals at the regulator together for an instant.) Now start the engine and run at 1/2 throttle.

If the ammeter shows a charge you are all set. However if it still shows discharge either the system is 6 volt, and/or the generator/regulator have other issues.

Good luck!

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