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  1. #1
    Silver Member
    Join Date
    Nov 2003
    Posts
    114
    Location
    Lower CT River Valley/US/Blue Moon Farm
    Tractor
    NH/TC40D SS

    Default Painting battery acid corrosion?

    This is my second go-round with battery leak damage on my TC40D and I'd like to be done with it. The tractor has been down for two weeks with a hydraulic steering leak caused by leaking acid and I've been removing parts too badly corroded to replace including battery plate and bolts. A mechanic from a dealer is returning this week with new hydraulic fittings and lines plus oil cooler pipes and other parts (some is warrantee work). I allready bought an Optimum sealed battery. There is bad paint damage on top of the front axle and peeling on the chasis near where the supersteer arms fasten.
    I sponged affected parts with baking soda water but this corrosion is rough and scaly so I'm wondering if I need to grind, sand or just spray on the NH Gray paint right out of the can. These areas will be real tricky to work on after the new plate is installed. I'm trying to include a picture but this system is fighting me.
    Attached Images Attached Images

  2. #2
    Super Star Member
    Join Date
    Apr 2001
    Posts
    11,552
    Location
    PA
    Tractor
    NH TC25D

    Default Re: Painting battery acid corrosion?

    I'd use a wire wheel on a drill to remove the scale and rust, clean the areas, prime and paint.

  3. #3
    Platinum Member Redneck_Randy's Avatar
    Join Date
    Mar 2006
    Posts
    528
    Location
    Oklahoma
    Tractor
    2005 New Holland TC35A

    Default Re: Painting battery acid corrosion?

    Seeing a number of post here about batteries leaking and doing damage I think it might be a good idea for me to trash the factory New Holland battery and replace it with an Optima battery before I have any damage from leaking.

    What battery model number or cranking amps do I need guy's? It's for my TC35A

    Thanks!

  4. #4
    Super Star Member
    Join Date
    Apr 2001
    Posts
    11,552
    Location
    PA
    Tractor
    NH TC25D

    Default Re: Painting battery acid corrosion?

    You might try a search on Optima in the NH OO forum. It depends what model Boomer you have.

    Tractorganic - I assume you meant an Optima battery?

    I installed a dry cell battery, an Odyssey PC925L .

  5. #5
    Super Member George2615's Avatar
    Join Date
    Feb 2005
    Posts
    5,251
    Location
    Central Square, NY
    Tractor
    LS XR3037HC

    Default Re: Painting battery acid corrosion?

    I agree with MikePA. Wire brush, scrape, chip, grind or whatever you need to do to remove the crusty buildup then neutralize with baking soda / water mix. any pitting can be filled with liquid steel putty then sanded, primed and repainted.

  6. #6
    Super Star Member
    Join Date
    Apr 2001
    Posts
    11,552
    Location
    PA
    Tractor
    NH TC25D

    Default Re: Painting battery acid corrosion?

    Unless the pitting is really bad, I wouldn't bother with the liquid steel.

  7. #7
    Super Member
    Join Date
    Oct 2003
    Posts
    7,345
    Location
    Northeast, Ohio
    Tractor
    TC-40D SS New Holland

    Default Re: Painting battery acid corrosion?

    Once you install an Optima battery further damage from acid will end. Wire wheel, prime & paint.


  8. #8
    Silver Member
    Join Date
    Nov 2003
    Posts
    114
    Location
    Lower CT River Valley/US/Blue Moon Farm
    Tractor
    NH/TC40D SS

    Default Re: Painting battery acid corrosion?

    Thanks MikePA and everyone!
    Yup it's an Optima, my dumb. I got it at an Interstate battery dealership 20 miles from home. I paid about $140. It looks like a red plastic tall boy six pack.
    The questions the dealer asked me regarding the right model for my TC40D (I'm replacing my NH 60 amp hour car/truck battery the NH dealer provided after my first mess) were:
    1) Will it fit snugly between the two bolt down plastic brackets or does it use a hold down strap.
    2) What's the position of the posts pos. and neg. and will they mate with the cables.
    I put the new battery on the old corroded plate I'd allready removed and remounted the plastic brackets. They seem to grip the lip at the bottom of the battery so I guess it will hold. The posts are right for my config. so I broke it down awaiting new parts. Now I need the right wire wheel for work in the confined spaces underneath the radiator and above the axle.
    Today I have skin on my knuckles, tomorrow??

  9. #9
    Elite Member
    Join Date
    Mar 2006
    Posts
    3,059
    Location
    Wisconsin
    Tractor
    2003 NH TN70A

    Default Re: Painting battery acid corrosion?

    Quote Originally Posted by Tractorganic
    Thanks MikePA and everyone!
    Today I have skin on my knuckles, tomorrow??
    More power to you for all that work! Nice to see you have a solution. Be careful, wear glasses and wear gloves. Be careful!
    Bob

  10. #10
    Epic Contributor
    R.I.P.
    jinman's Avatar
    Join Date
    Feb 2001
    Posts
    21,014
    Location
    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: Painting battery acid corrosion?

    Quote Originally Posted by Tractorganic
    This is my second go-round with battery leak damage on my TC40D and I'd like to be done with it.... There is bad paint damage on top of the front axle and peeling on the chasis near where the supersteer arms fasten.
    I sponged affected parts with baking soda water but this corrosion is rough and scaly so I'm wondering if I need to grind, sand or just spray on the NH Gray paint right out of the can. These areas will be real tricky to work on after the new plate is installed.
    If you want to go a little extra on the heavily rusted areas, there is a Loctite product called "Extend" that will neutralize the rust and convert it so it will not come back beneath your new primer and paint. Here are a few pictures of my repair and battery shelf.

    When you get the paint finished, you will want to use oem foam or creat something to seal the front area to keep dirt and debris from getting into your radiator. That area relies on the grill to filter out large particles and keep the radiator clean.
    Attached Images Attached Images
    Jim


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