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Dave H (MI) 11-17-2009 07:47:58 64.12.116.20 741521 Report to Moderator	So, is there any way to bench test "an induction type ammeter"? I want to pull this off the tractor and see if it works before I replace it. Will any 6 volt circuit run thru the back cradle of this gauge register on it? Any electrical experts here? Also, can I bench test my cut-out? Would like to clean it and see if it still works. Looks like a solenoid to me and thinking it should maybe work if cleaned up. [Reply]   [No Email]
Dave H (MI) 11-17-2009 17:13:53 64.12.116.20 741564 Report to Moderator	Re: 1944 2N charging system.... in reply to Dave H (MI), 11-17-2009 07:47:58   Appreciate it! The gauge was working OK but starting to deteriorate inside the glass so I went ahead and got a new one.   [Reply]   [No Email]
JMOR 11-17-2009 08:10:56 72.251.11.69 741527 Report to Moderator	Re: 1944 2N charging system.... in reply to Jim.UT, 11-17-2009 07:47:58   Dave H (MI) said: (quoted from post at 11:47:58 11/17/09) So, is there any way to bench test "an induction type ammeter"? I want to pull this off the tractor and see if it works before I replace it. Will any 6 volt circuit run thru the back cradle of this gauge register on it? Any electrical experts here? Also, can I bench test my cut-out? Would like to clean it and see if it still works. Looks like a solenoid to me and thinking it should maybe work if cleaned up. Looks like Dell pretty well covered you. I will add that if you have variable voltage power supply, you can do some 'testing', but the reverse current kick out test is a bit more involved, but could also be done with the right supplies & meters. "The cutout relay unit 9N10505B used with 3 brush generators should be adjusted to a closing voltage of 6.5-7.25 volts. Opening voltage should be 1/2 to 1-1/2 volts less than the closing voltage or 6 amperes maximum reverse current at 6 volts minimum.   [Reply]   [No Email]
Dell (WA) 11-17-2009 08:00:24 172.191.150.93 741522 Report to Moderator	Re: 1944 2N charging system.... in reply to Dave H (MI), 11-17-2009 07:47:58   Dave......to "bench test" enny amp-meter, you need a "known" load and a "known" voltage. Its the LAW, Ohm's Law. Amp-meters don't care what the voltage is. For a known load, think headlite bulb. For a known voltage, enny volts battery that matches the headlite volts specifications. In other words, DON'T use a 12v battery on a 6v headlite, or you will let the smoke out. And don't use a 6v battery on a 12v headlite. Understand the concept??? Yer loop amp-meter is 20-percent accurate, so iff'n you expect 10-amps, it could read 8-amps or 12-amps. As fer yer cut-out, they usually are replaced 'cuz the relay pivot points gitt worn and sticky. .....Dell   [Reply]   [Send Email]
Dave H (MI) 11-17-2009 08:04:55 64.12.116.20 741523 Report to Moderator	Re: 1944 2N charging system.... in reply to Dell (WA), 11-17-2009 08:00:24   Been waiting for you to show up and answer this one! I was hoping that was the case. I have a good rectifier that does 6/12 volts and more than my share of spare tractor headlights around. I'll see if I can get a rise out of this gauge and, if no then run up and get a new one. It's a long stinkin drive is all and I am trying to avoid it. Thanks!   [Reply]   [No Email]
soundguy 11-17-2009 08:07:20 173.6.231.12 741524 Report to Moderator	Re: 1944 2N charging system.... in reply to Dave H (MI), 11-17-2009 08:04:55   if you wanted to test the cutout, you can use a battery charger and battery... pretty much just like it was doing it's job n the tractor.. it should behave on the bench.. when the cutout threshold voltage is eclipsed at the input side.. it should pull in and charge the bat.. thus you can test your induction meter and cutout at the same time with the bat charger and bat. soundguy   [Reply]   [Send Email]