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41 9N charging ???

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steve

11-09-1999 11:40:25

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i was searching the archives and truthfully i am now really confused. i think my 41 9N is not charging. the battery winds up dead real quick. i put the battery charger on the battery today and charged it up. when i turn the key on it shows a 2 amp. discharge. if i run the engine at full throttle i get a three amp. charge. when i shut down the engine and turned the key back on it showed a charge of 9 amps. anybody have an idea what gives ?
thanks, steve

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Jim WI

11-10-1999 10:47:52

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Re: 41 9N charging ??? in reply to steve , 11-09-1999 11:40:25

I was ready to tell you to adjust the charge rate until you said the ammeter showed a 9amp charg when you turned the key off.

I can't think of anything that would cause that.

The 2 amp discharge when you first turned the key on with a fully charged battery is nearly normal (3 to 4 amps would be expected). This is the current through the ignition system.

The 3 amp charge when the tractor at full throttle is too low (but at least it's charging). That's why I was thinking that the generator needs adjustment.

Are you sure about the 9 amp charge when the key is on? This is with the tractor not running??

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ZANE

11-10-1999 05:05:00

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Re: 41 9N charging ??? in reply to steve , 11-09-1999 11:40:25

The battery should be installed in the tractor with a positive ground.If it has been installed with a negative ground and operated this way you may have to repolarize the generator to get it charging with the correct polarity again. To do this on the 9N generator all you have to do is to remove the wire that comes off the cut out and touch it to the wire that goes into the cut out.Do this with the battery installed with a positive ground and a good charge on it.
It is also possible to recharge a dead battery in the wrong polarity if the charger is hooked up backwards. This will make everything confusing and I have seen it happen more than one time.

It is also possible that the ammeter has been wired backwards and is causing a false reading.
If you have the battery installed with a positive ground and the battery has not been charged backwards then when you turn on the switch the ammeter will show a slight discharge if and when the points are closed.

If it shows charge when the ignition is turned on and the battery is in correctly and charged correctly then the ammeter is wired backwards and should be rewired with the wire coming into the loop from the opposite side from where it is now.

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TimK

11-09-1999 13:45:27

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Re: 41 9N charging ??? in reply to steve , 11-09-1999 11:40:25

I think the volt gauge is bad. That notwithstanding, after you get it running, will the tractor work ok, which would mean to me that the generator is charging and carrying the engine, which then would indicate to me that the battery is not holding a charge (bad cell(s))after you shut down. If the battery is ok, but your not getting a charge, will you get it to charge if you jumper around the cutout switch ? If not then I would guess the generator has a problem, or the wiring or connectors to it.

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Claus

11-09-1999 12:19:40

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Re: 41 9N charging ??? in reply to steve , 11-09-1999 11:40:25

When you turn the key on, it is normal for the meter to show 2-3 amp discharge when the points are closed. The thing that does not compute, is when you stop the tractor and turn the key on and the meter shows 9 amp charge... I would have to make a big leap to come up with a scenario that would cause that.. I would love to get my hands on that one..
Sorry I was not much help.
Claus

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