2001 New Holland 5610S Alternator Question

[TractorJack1]

Alternator isn't charging, and this is what I have done so far: Installed a new 3 wire alternator, and tested it with a meter and the alternator 12.53 volts with the tractor on or off. I'm not sure if the dummy light is effecting it not working, or the battery heat sensor could be the problem. The battery I have is about a year old. When I put a charger on the battery, it charged the battery to 13.8.

Any advice/help would be appreciated.

Thank you in advance,
Jack

 

[used red MN]

Hello Jack welcome to YT! The alternator you bought is specific to your tractor? In other words wherever you bought your alternator you requested one for a 2001 NH 5610s? Or are you trying to install a Delco 10SI 3 wire alternator as a cheaper alternative? If you installed the stock alternator the fact that your charge indicator light is not working may very well be the cause of your problem. It may be a fuse that has blown. Does it light up when you turn the key on? How about when you crank the engine does it light up then? This is usually a test time for such lamps. I would check in your manual for the fuse location. I suppose if your manual says something about the “battery heat sensor” being a possible cause of your issue it very well may be. To diagnose that we would have to see how it connects into the wiring that affects the charging circuits.

 

[TractorJack1]

It's raining when it stops l will take some pictures and post them

 

[used red MN]

Okay, but my question remains did you install a stock direct replacement alternator for your tractor or are you trying to make another type of alternator work on it?

 

[TractorJack1]

I bought it from New Holland for this tractor.

 

[Jim.ME]

Okay, but my question remains did you install a stock direct replacement alternator for your tractor or are you trying to make another type of alternator work on it?

You are going to have to wait for pictures. It is possible it did not have an original on it and he replaced it in kind.

 

[TractorJack1]

The alternator I bought looks exactly like the one in my manual. I replaced the warning light bulb still nothing. Then I manually excited the alternator with a screwdriver behind the regulator and the battery started reading 14.3. I turned tractor off and restarted the tractor and know it's charging very odd

 

[TractorJack1]

Maybe I have a short somewhere?

 

[used red MN]

Well hopefully you didn’t short out the wrong thing with your screwdriver and all will be good now. It does seem rather odd that you could possess a magic screwdriver!

 

[Harry in Ky]

Does your tractor have a battery temp sensor on the bottom of the battery tray with two wires connected to it? If it does, that has to be included in the charging system circuits or it will never charge. Are you aware of that?

 

[TractorJack1]

Yes I tested at the alternator an the battery sensor was getting 12 volts

 

[Harry in Ky]

What about the idiot light circuit? Does that work? If you take that wire off the alternator and ground it does the battery light come on? It won't charge without that working.

 

[TractorJack1]

Light wasn't working till I excited the alternator now it's working and battery meter reading 14..3

 

[Harry in Ky]

I'm quite sure the light circuit should turn the light on as soon as you turn the key to "on". You shouldn't need to manually excite anything. Maybe you need to revisit that circuit.