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  1. #1
    Elite Member bindian's Avatar
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    Feb 2007
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    Willis, Texas
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    Mahindra 6520 4WD

    Default Amco Offset Disc

    I am not sure what model Amco offset this disc is. I do know it was built in Yazoo City, Mississippi. I am thinking it is a vintage F42 model Heavy Duty. It is 8 foot 6 inch wide with 24 discs that are 22 inches in diameter. The discs are on about a 9.5 inch spacing. It is suppose to have dual transport wheels, but only has 2 with tires and one axle assembly missing and one unused axle with no hub. So it needs one axle and two hubs with wheels. I gather this disc is around 4100 pounds. Best I can figure (in my online search) is that it is a F42 Heavy Duty disc. I need help in figuring out the exact model.

    I won this disc at Richie Brother's Auction in Houston last Wednesday. I bid more ($2500)than I wanted, but now am glad to have it. Amco's webpage says a new F42 HD sales for right at $16,000. At least one existing wheel bearing needs replacing. Somebody painted it green, years ago over the yellow. It will be RED very soon.

    The closest Amco dealer to me is 2 hours away in Giddings. I hope to stop by there next Friday or the next Friday. So any help will be appreciated. I am new at using an offset disc. I have only used 6 foot 3PH (spelled LITE WEIGHT) in the past. I need advice on how to adjust it on all the various gang settings it has and spring adjustment.

    It is in the barn now waiting to have the the hoses and cylinder purged today. Yesterday evening I got excited just staring at it's immense size and then got misty eyed thinking of Dad and how many hours he pulled a disc bigger than this one.
    hugs, Brandi
    -2-8-13-front-end-2-8-13-luke-8-a-2-8-13-rear-disc

  2. #2
    Super Member flusher's Avatar
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    Sacramento
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    Sold the farm, sold the tractors, moved back to the city

    Default Re: Amco Offset Disc

    Nice disc. Looks like it's worth $2.5K.
    Hope your 6520 can pull it.
    My 5525 has trouble with my 6.5 ft Towner offset disc in soft soil. It's a pure drag type--no transport wheels like yours.

    Good luck.

  3. #3
    Super Member
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    Feb 2008
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    9,392
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    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: Amco Offset Disc

    Nice looking disk and pretty heavy too. Had a 6 1/2' like that years ago and will say those spools between the blades add lots of weight. Sure would like to find another one like I had.

  4. #4
    Elite Member bindian's Avatar
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    Willis, Texas
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    Mahindra 6520 4WD

    Default Re: Amco Offset Disc

    Thanks Guys.

    Flusher,
    My concern was my 6520 pulling it, also. The guys that sold me my 6520........and that ran a Mahindra 7520 haying and discing, told me my 6520 would pull it and that if it got to hard pulling, to just raise it up with the transport wheels. I'm not too concerned. If my Mahindra is a little on the small side, I'll just buy a dedicated tractor for pulling and 3PH work, as I really like to keep the backhoe on the 6520. Mahindra has that 100 hp tractor out now. Maybe they will come out with a bigger Bradco backhoe to fit it. Also, my neighbor has 100 acres a stone's throw from my back gate and is working up a herd of Black Angus. He has no tractor and says he won't have to buy one now that he knows I am nearby and willing to work for him. This disc will fit into my business/retirement plan nicely.
    hugs, Brandi

  5. #5
    Elite Member bullbreaker's Avatar
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    Mar 2009
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    SW FLA 34120 ZIP
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    BOTA L3400 DT -SQ 172 B HOG-WAC PHD-JD SUBARU PWRD GENNY

    Default Re: Amco Offset Disc

    Howdy again Ms. Brandi !
    Looks like there's another Beast in the arsenal !
    Big Congrats on awesome purchase !
    Neat pic's too.

    Boone
    2 CHRONICLES 7 : 14 (KJV)

  6. #6
    Elite Member bindian's Avatar
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    Willis, Texas
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    Mahindra 6520 4WD

    Default Re: Amco Offset Disc

    Quote Originally Posted by bullbreaker View Post
    Howdy again Ms. Brandi !
    Looks like there's another Beast in the arsenal !
    Big Congrats on awesome purchase !
    Neat pic's too.

    Boone
    Boone,
    Thanks. It is always a pleasure to hear from you!

    I stopped at a truck stop to refresh on the way home with it. I looked back at the disc on the trailer and wondered.............will my tractor fit on there with the disc. When we unloaded it yesterday, I purposely backed the tractor over the tongue until it touched the spring "pogo stick" that holds up the hydraulic lines to the cylinder. It just barely fit with the loader lowered after the ramps were stowed, just missing the front tractor tires. Whew...........I thought I was gonna need a longer trailer!
    hugs, Brandi

  7. #7
    Elite Member
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    MtnViewRanch's Avatar
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    Mar 2005
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    4000\' mountains of Southern California
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    Mahindra 7520, Mahindra 3215HST, Case 580 extendahoe, Case 310 dozer, Parsons trencher, Cat D6,

    Default Re: Amco Offset Disc

    Not to be a pessimist, But your 6520 will not be able to make use of that disk to it's fullest capabilities. I think that you will be using the transport wheels for more than just transporting. I hope I'm wrong, but I don't think so.

    Good luck
    Brian
    Top and Tilt Kits by Fit Rite Hydraulics

  8. #8
    Platinum Member npalen's Avatar
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    Beloit, KS
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    Kubota B9200 HSTD and Allis 720

    Default Re: Amco Offset Disc

    While not familiar with this particular disc, I would say that the wheels need to be in contact with the ground at all times to control tillage depth. A good match between tractor size and disc size/type doesn't mean that the tractor can always handle the disc when cutting maximum depth. (down to the spools) The tillage depth needs to be controlled by the operator and most hydraulic lifts will include an adjustable depth stop for this purpose.

  9. #9
    Elite Member bindian's Avatar
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    Willis, Texas
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    Mahindra 6520 4WD

    Default Re: Amco Offset Disc

    Quote Originally Posted by MtnViewRanch View Post
    Not to be a pessimist, But your 6520 will not be able to make use of that disk to it's fullest capabilities. I think that you will be using the transport wheels for more than just transporting. I hope I'm wrong, but I don't think so.

    Good luck
    Brian,
    I agree to you using the word "fullest". I am a firm believer in having too much tractor and now,.... .........that 100 hp Mahindra is looking better and better! I'd even consider a used, different color tractor to have just for pulling. We'll see what the Big RED Beast can pull first!
    hugs, Brandi

  10. #10
    Elite Member bindian's Avatar
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    Willis, Texas
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    Mahindra 6520 4WD

    Default Re: Amco Offset Disc

    Quote Originally Posted by npalen View Post
    While not familiar with this particular disc, I would say that the wheels need to be in contact with the ground at all times to control tillage depth. A good match between tractor size and disc size/type doesn't mean that the tractor can always handle the disc when cutting maximum depth. (down to the spools) The tillage depth needs to be controlled by the operator and most hydraulic lifts will include an adjustable depth stop for this purpose.
    Npalen,
    I agree. This disc does have holes to lock the cylinder lift assembly into different heights (settings) when in the ground. But I realized it will be the remote lever setting the height and fine tuning it. I am not gonna disc with it until I get all 4 wheels back installed.
    hugs, Brandi

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