Yanmar SA424 lifts more than the 1025R?
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Thread: Yanmar SA424 lifts more than the 1025R?

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    Yank's Avatar
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    Yanmar SA424 lifts more than the 1025R?

    Did you know that Yanmars similar version to the 1025R, the SA424, lifts over 1200 pounds at the fel? That’s more than the 2038R I’m waiting on. Makes you wonder how they get so much more lift out of a 24hp subcompact tractor than JD.
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    Yancey

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    coaltrain's Avatar
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    Nice thread title......
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    ~Stan~
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    Yank's Avatar
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    Didn’t know what to call it. Just thinking out loud.
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    Yancey

    2017 2038R 220R loader
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    The SA424 is closer to the "old" 2025R than the 1025R when you look at specs. Wheelbase is 6" longer than the 1025R's and it weighs 600 lbs more.

    But, as you questioned, it still has 175lb more loader lift capacity (at the pivot pins) than the 2025R has.

    Interestingly, the SA424 has a 1,209lb 3pt lift capacity where the 2025R is rated at 1,433lbs. So you have 175lbs more at the loader but 200 lbs less on the 3pt. (As anoher odd-ball item, the old 2025R/2032R have more 3pt lift capacity than the new 2032R/2038R.)
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    Yank's Avatar
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    I hear ya, Jim. Some of these numbers make you really scratch your head. It makes me wonder if these numbers we get are real capabilities or liability numbers crunchers setting them low. A 24hp 1800 pound tractor shouldn’t be out lifting a 2450 pound 38hp tractor. Bottom line.
    Last edited by Yank; 10-18-2017 at 07:20 PM.
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    Yancey

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    It's all in the hydraulic pump not the engine. Whatever engine that pump is hooked to just needs to spin at the correct RPM to power the pump correctly. I bet the HP draw to run the pump on a 1 series is not that much.

    With that said, the pump in the JD has to be rated lower than the one in the Yanmar or they have set the by pass pressure low. With the pump on the 1025 it powers both the hydraulic and steering systems so it's not going to be that powerful. I am sure JD does this on purpose for several reasons, liability is part of it. You also have to remember you don't want the FEL lift capacity exceeding the rating of the front axle. That is probably also a factor in this, maybe not in the bigger tractors but for the smaller 1 series, I am sure it is. I suppose you can always shim the valve like some have done on the 45 loader used on the older X7 series. The problem though is you can possible make the FEL lift more than the front axle capacity of the tractor or the benefit may not be worth the effort. If you need to lift a lot of weight, JD is going to make you get a bigger tractor and heavier tractor. Their business plan is designed that way.
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    Very good answer, 69. Different brand tractors do have much different philosophies on the ratio of tractor size and lift capacity. I love John Deere. It’s in my blood. But I will admit, JD seems to have some of the most conservative numbers in the market.
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    Yancey

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    Yes it's the pump pressure and capacity, and what is used for the implements versus what is
    diverted for the power steering. The Yanmar 424, as Jim said, is very close to the old 2320/2025R
    which makes sense because Yanmar built those tractors for Deere. Yanmar put a bigger pump,
    cast iron hydro, and more lift capacity.

    I bet the Yanmar 424 is a great tractor. But there is one thing Yanmar didn't do and that is put
    differential lock on those smaller machines. Personally I want and need that feature.

    The "old" 2320 and 2025R were definitely fine tractors, that Deere decided to not offer in that size
    and capability any longer.
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    I'd bet it's more just how each manufacturer calculates the rating and where there level of safety falls with respect to liability and publishing of the data.
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    Quote Originally Posted by 69project View Post
    It's all in the hydraulic pump not the engine. Whatever engine that pump is hooked to just needs to spin at the correct RPM to power the pump correctly. I bet the HP draw to run the pump on a 1 series is not that much.

    With that said, the pump in the JD has to be rated lower than the one in the Yanmar or they have set the by pass pressure low. With the pump on the 1025 it powers both the hydraulic and steering systems so it's not going to be that powerful. I am sure JD does this on purpose for several reasons, liability is part of it. You also have to remember you don't want the FEL lift capacity exceeding the rating of the front axle. That is probably also a factor in this, maybe not in the bigger tractors but for the smaller 1 series, I am sure it is. I suppose you can always shim the valve like some have done on the 45 loader used on the older X7 series. The problem though is you can possible make the FEL lift more than the front axle capacity of the tractor or the benefit may not be worth the effort. If you need to lift a lot of weight, JD is going to make you get a bigger tractor and heavier tractor. Their business plan is designed that way.
    i do believe u hit the nail on the head so to speakat least in my tractor--as my hydraulics was very impressive when i first bought it-even with my brush hog back then for ballast--i could still lift the right rear tire off the ground. but i feel that led up to my front axle failing in the left side(shaft and bronze part in their all being worn out.
    i have since replaced both sides of front axle with the upgrades they(jd) made to the 2720's model--and added a ballast box-anytime loader is on--ballast box is on too--unless not digging anything
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    2018 835R gas model gator-"aka" the Cadillac i say!! 6ft jd snow plow-which already has a dtac out on it. i got just about everything on it i could at the time

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