mark in ny 27 #1 Posted January 23, 2020 I'm in the process of reqiring a electro that was converted to essentially a charger meaning no more electric pto. I have everything sort of figured out and can run the tractor now but I have a question regarding ammeter. Right now I have the center wire of the rectifier hooked up to the rectifier terminal of the ignition and the ammeter isnt hooked up. As someone previously hacked the wires all up I dont have most of the original colors on the diagram. Battery is hooked to battery and condenser is hooked to the I terminal. Do I have the rectifier or battery hooked up wrong? Thanks Share this post Link to post Share on other sites
Achto 29,229 #2 Posted January 23, 2020 (edited) 1 hour ago, mark in ny said: Battery is hooked to battery and condenser is hooked to the I terminal The I terminal from the switch should connect to the + side of the coil. Then condenser and points wire should be on the - side of the coil. If you are using an automotive style battery ignition. The rest sounds correct. Just to make sure unplug the rectifier from the R term on the switch. Check this term with a meter or test light. It should only have power when the switch is in the ON position. You do not want power feeding to your rectifier when the engine is not running. Edited January 23, 2020 by Achto 1 Share this post Link to post Share on other sites
WHX?? 51,370 #3 Posted January 23, 2020 Here is a basic wiring diagram of @953 nut 's if you have the five term switch but like Dan said check that switch for correctness. I would just leave the ammeter out or go to a voltmeter gauge. Share this post Link to post Share on other sites
mark in ny 27 #4 Posted January 23, 2020 11 minutes ago, WHX24 said: Here is a basic wiring diagram of @953 nut 's if you have the five term switch but like Dan said check that switch for correctness. I would just leave the ammeter out or go to a voltmeter gauge. Thanks guys that's actually the diagram I used to rewire it I was just unsure of the ammeter. Kinda thought about using it since it's there but unsure of how it fits in which line. Share this post Link to post Share on other sites
Achto 29,229 #5 Posted January 23, 2020 (edited) 23 minutes ago, mark in ny said: I was just unsure of the ammeter. Kinda thought about using it since it's there but unsure of how it fits in which line Need to take note that the diagram above is for a magneto ignition not a battery ignition. So the ignition circuit will be different. To use the ammeter - disconnect the wire from the B term on your switch, this wire will be used from the battery to the + side of the meter. ( It would be a good idea to add an in line fuse in this wire ) Connect another wire from the - side of the meter to the B terminal on the switch. This way any power to or from the switch has to run through the meter. Ammeter can cause issues if they go bad. I prefer to use a voltmeter. Easier hook up too. Hook a wire from the I or R term on the switch to the + side of the meter. Hook a wire from the - side of the meter to ground. Edited January 23, 2020 by Achto 1 Share this post Link to post Share on other sites
Pullstart 65,781 #6 Posted January 23, 2020 Most guys will agree with @Achto on that matter. Both will tell you if the tractor is charging. If the ammeter lets out the magic smoke, it might not stop with just itself. 1 Share this post Link to post Share on other sites
mark in ny 27 #7 Posted January 23, 2020 I do have a 312 8 that I'm gonna strip down for parts and scrap the rest that has a voltmeter so maybe I'll just swap that over to the charger. 1 Share this post Link to post Share on other sites
