My first post, and its embarrassing....I hooked my battery up backwards 4400 John D.
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    My first post, and its embarrassing....I hooked my battery up backwards 4400 John D.

    I am new to the forum and new to John Deere's. I Took out my battery and fully charged it, but when I put it back in backwards. It was only for a second, but there was some heavy smoke on the right side of the tractor as you look at it. I have a 2001 John Deere 4440. I pulled battery back out, and will see if there is anything messed up with that. What are the next steps. Tell me there is a main fuse...... What else would you move to? Starter Solenoid? Did I mess up the alternator or does this have a computer? Thanks for the help.
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    Tomfive's Avatar
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    Sorry for your troubles ... not sure on your particular tractor, but I'm pretty sure that your alternator or at least the diode/rectifier in it has been fried. You said that there was a release of smoke on the right side, I'll assume that's the side your alternator is on. In the old days, you could replace just the rectifier assembly, but you may have burned other parts of the alternator, better to have that professionally checked out.

    Not sure about any other electronics, your starter should be OK.

    I'd start with checking your alternator, it may be shorted or open, but if you disconnect the battery lead (and keep it insulated), you can probably reconnect the battery to start checking other circuits in the tractor.

    Not to joke, but you know that everything electrical or electronic works on smoke... once you let the smoke out, it won't work anymore.

    But seriously, good luck, and let us know how you make out.

    BTW,


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    Welcome to GTT and sorry to hear of your OOPS.

    I have a 4200 of the same vintage and the electronics is minimal in these tractors, and what is there tends to be of the dumb variety as these tractors are still pretty much mechanically controlled.

    I'll make two quick suggestions; create an account on https://jdparts.deere.com and get yourself the shop manual on CD from https://techpubs.deere.com as both are great resources. The JD Parts website is the same system your dealer uses.

    The 'regulator' part number is LVU14116 for the 40-AMP alternator. I didn't price it out. If you have to replace the alternator, get the optional 55-AMP one, which is what I did a few years ago when the original puked.

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    I have more ideas than ambition.


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    Welcome from Illinois. Good luck.
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    Welcome to GTT
    You must have stated wrong model because 4440 was built'78-'82. I will guess you fried the voltage regular & possibly some alternator components. I searched 4400 parts catalog but found no ECM listed.
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    Welcome to the forum! I'm not far from you- I live near Sherando Lake.
    If you wind up needing someone to figure things out, let me know. I have a friend who is an excellent troubleshooter/mechanic.
    Romans 1:16 "For I am not ashamed of the gospel of Christ..."

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    First thing I would check is the battery cables. Probably start by replacing both seeing you tuned them into welding rods. Also look over all your wiring for hard spots and or melted insulation.
    Good luck
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    MDrew's Avatar
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    Wow that sucks. At least you have a direction now and an offer of help. Good Luck.

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    Mike

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    Welcome, keep us posted on your findings.
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    Thanks Bob
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    Well, I can't help but I can say...
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