I did a bad (dumb) thing...

[GoAWOL]

After cleaning the battery on my Kubota 1850 I reconnected the battery cables incorrectly. After a quick 'zap', the dash lights no longer come on when I turn the ignition key and the tractor will not start. I've had time to check the fuses and none are blown. Any ideas or things to check? Anyone have the wiring diagram for the 1850?

Thanks ahead of time

 

[xring100]

My Condolences,

Did you check to see if you have power to the fuses still maybe you got lucky and only blew a fuseable link. You definitely let the magic smoke out of something maybe several things. In cars generally, alternators, ignition modules, (stereo's) , Engine computers etc... get fried its possible even your dash is fried and any other stuff with solid state electronics in it if it is not diode protected. Someone on here hopefully may have a better answer

Good Luck hopefully its not to costly

 

[GoAWOL]

My Condolences,

Did you check to see if you have power to the fuses still maybe you got lucky and only blew a fuseable link. You definitely let the magic smoke out of something maybe several things. In cars generally, alternators, ignition modules, (stereo's) , Engine computers etc... get fried its possible even your dash is fried and any other stuff with solid state electronics in it if it is not diode protected. Someone on here hopefully may have a better answer

Good Luck hopefully its not to costly

There's no doubt I screwed the proverbial pooch. Hoping someone has a simple thing I can check.

 

[xring100]

Do you have power to the fuses that would be the first thing to check. key on position should get power to all of them normally. most if not all will have power all the time though

 

[GoAWOL]

Do you have power to the fuses that would be the first thing to check. key on position should get power to all of them normally. most if not all will have power all the time though

Appreciate the response Dave. Didn't have time to check for power anywhere but I will tomorrow. None of the fuses were bad which I find confusing since I thought they existed to prevent bonehead moves like this.

 

[xring100]

there is also a fuseable link inline with the battery generally but i would be surprised if this blew. Unfortunately Fuses allow current to go both directions they don't stop the flow of electrons they are like a 2 lane 2 way street versus 4 or 6 lanes 2 way streets they just limit how many can get through at one time Overload them and they fault.. This is also the reason you can install a fuse in either direction. Diodes keep the direction of electrons flowing like a one way street, but they act like fuse if you reverse the flow they blow if overloaded, protecting other electronics from their demise. So i would suspect that the alternator diode is toast I'm not sure what else is diode protected definitely need a wiring diagram. Diodes are directional and must be installed in the correct orientation

 

[GManBart]

Appreciate the response Dave. Didn't have time to check for power anywhere but I will tomorrow. None of the fuses were bad which I find confusing since I thought they existed to prevent bonehead moves like this.

Fuses protect against current spikes (too much flow), not incorrect polarization (direction of flow). Good luck...hopefully it's something simple. R,

 

[GoAWOL]

okay, I suppose my next steps are to begin checking for power and trying to find a wiring diagram. Appreciate the responses guys.

 

[john40981]

doesn't sound good:duh: hope get it sorted with out too much expense

 

[k0ua]

The diode trio and the built in regulator in the alternator would probably be a good start, the main fuse, what ever it is for that model of tractor, My Kioti is an inline 60 amp. Workshop manual is gonna be a must.. You need a good schematic, and and good multimeter, and know how to use both. Good luck.

James K0UA

 

[GoAWOL]

The diode trio and the built in regulator in the alternator would probably be a good start, the main fuse, what ever it is for that model of tractor, My Kioti is an inline 60 amp. Workshop manual is gonna be a must.. You need a good schematic, and and good multimeter, and know how to use both. Good luck.

James K0UA

Ahhh crap....a new alternator is $260,

 

[xring100]

Ahhh crap....a new alternator is $260,

a descent alternator /starter repair shop can probably fix it for half the cost of new. unfortunately you don't need to worry about the alternator until you can get the rest of it working

 

[k0ua]

Ahhh crap....a new alternator is $260,

Take the Alternator/integral regulator in to the auto parts store and have it tested, and yes they can be rebuilt.

 

[PhysAssist]

Best of luck to you and your tractor!

 

[Wagtail]

Best of luck to you and your tractor!

Ditto. This is one heck of a "New Member" introduction, by the way.

Welcome to TBN, Mate.

 

[banjodunn]

G'day no lights on the dash makes me think a fusible link gone I know they will allow power flow both ways but I have seen them blow with reverse fitment of cables and they have saved the rest of the system. Start by getting power to the dash and go from there, globes are not polarity sensitive so they are not getting power for some reason so start with that and see how you go, oh and BTW :welcome: to TBN.


Jon

 

[GoAWOL]

Alright fellas, I appreciate all of the responses. They have been helpful in providing a starting point for me. That said, I think I'm on to something. I began tracing the start-run circuit this evening with my multimeter and noticed a 30amp fuse that was rattling when I removed it. I don't want to jinx myself but I think this may be the problem.

 

[GoAWOL]

G'day no lights on the dash makes me think a fusible link gone I know they will allow power flow both ways but I have seen them blow with reverse fitment of cables and they have saved the rest of the system. Start by getting power to the dash and go from there, globes are not polarity sensitive so they are not getting power for some reason so start with that and see how you go, oh and BTW :welcome: to TBN.

Jon

You may have won the prize if the fuse you're referring to looks like the one pictured in my last post!

 

[xring100]

Definitely a good start at root cause

 

[CanuckPT]

[QUOTE="I don't want to jinx myself but I think this may be the problem.[/QUOTE]

Welcome to TBN! Here's hoping you're right!! Keep us posted!!

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