Hydrostat Vs Shuttle Shift - Pros and Cons
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- Опубликовано: 27 фев 2023
- Hydrostat Vs Shuttle Shift - Pros and Cons
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I have a JD 3043D. It's gear drive with a shuttle shift, though the clutch does need to be depressed to use the shuttle. It's 8 speed forward and reverse. I've run gear drive tractors all of my life so I guess that I might be less inconvenienced by a clutch than someone that hasn't run old tractors. Most of the time, the shuttle shift happens, almost without thought, while I'm operating the loader or turning the steering wheel. I doubt it costs more than a couple of seconds of time compared to operating a hydra-stat.
Gear drive transmissions operate in the 95 to 98% efficiency range, (engine power transmitted to the wheels) The best hydrostatic drive will be in the 78 to 83% range (less power to the wheels).
Hydrostatic transmissions are very user friendly and are instrumental in making repetitive back and forth tasks easier on the operator. With that said, you will never match the pulling power of a gear drive, especially when dealing with ground engaging implements and providing pushing power when going uphill. There is a much steeper learning curve with a gear drive transmission. They both have their pros and cons, it really depends on budget and what type of work you’re planning on doing with it.
I bought a JD 3025D and sometimes wish I had a hydro, but can’t stand the wine they make. My high range 2nd gear seem like a great all around gear for most loader work. And it’s been great for the brush hog and tilling that I have been doing. I wish front loader capacity was just a little better but a simple upgrade from hydros plus will help with that. Thanks Brock for always giving us great content from your channel.
Good video. Hydrostats are 85% or less efficient. Gear drives can go as high as 98%. Hydrostats are so easy it's silly. Shuttle shift is an awesome in between.
And how many hours have you used it? Ha ! Yeah and how many folks having problems with the 5075e shuttle shifter aka powerreverser ....among other problems....? A hell of a lot. It may last long enough for a few guys to plant their food plots to hunt once a year for a few hours. But, to depend upon it to make a living? Hell naw. Why doesn't JD have to recall all the issues they have? Back when made in the U.S. and computer and sensor free, not many issues back then and any mechanic including the farmer could repair them. Now mechanics depend on these diagnostic codes which are only as good as what's downloaded from JD. This is what happens when politicians accept $$$, from big corporate from pharma to food to our equipment. We have to live, or not live, with it. Corporate America 3rd party mfrd and 3rd party assembled should be held accountable for recalls ! F'ing unacceptable!!
I watch a lot of Tractor videos. Every Kubota guy says they prefer the treadle pedal because it’s more simple or easier or just superior. EVERY one of those guys raise their whole leg to move their heel back to the rear of that pedal to go in reverse. I’ve literally may be only seen one or two guys one or two times leave their foot in place and rock it back and forth. Feel free to tell me your Kubota is a better Tractor but you literally cannot argue that moving your whole leg is easier than just moving the tip of your foot while your heel and leg stays in place….
I'm pretty sure the reason the hydrostats only go so "big" is literally size as really the only way for a hydrostat to gain strength is to increase the radius from the center of the pistons to the center of the swash plate and fit a thicker plate, bigger pistons, rods, and pins. This grows in size for a given strength faster than gears do. Hydrostats can do everything better than traditional gears can do, except packaging.
I’m really thinking of a YM YANMAR. I GOT QUOTED 30k for a 47hp which is about 10hp more for the same price hydro.
I’ve had both. Hydro is sooooo much better. There are some real differences with shuttles out there. Most smaller 25-60hp tractors use single dry disc and they will need adjustment and will need replaced. All of the Deere shuttles are dual wet disc with power engagement like the other brands lancer tractors. Good video.
I think this was a good explanation for the average person that doesn't have any Ag experience. I haven't commented in a while because I haven't been watching many videos lately. Tom KF0QKK said it pretty well. All my life I have driven gear drive or shuttle shift tractors. Gear drive is awesome for long runs as you said. Shuttle shifts are awesome for repetitive work. Hydros are great for lawn/garden/small scale utility (light-medium light) work. As for electric over hydraulic it's the same story as vehicles these days; everything keeps getting more and more "convenient" but that comes at the cost of being more complex. You really have to ask yourself if you really "need" all the convenience that is available? Ask a person that has had a "convenience" system fail at a very inconvenient time and there is no way to "rig" the equipment to get the job done or get the equipment to a more suitable place for repairs. I'm guessing that person would say they could have done without some of that convenience (and cost to repair it). Just my opinion.
I believe hydrostatic machines overheat when doing heavy work, especially at low ground speeds.
This was very helpful. When I was a kid (60's and 70's) there was only one option. HST was brand new back then and there was no shuttle shift. This helped me a lot. Thanks.
Good stuff Brock! Having never owned a shuttle shift I learned something new. Great... now another decision I have to make when figuring out what to buy and from who to buy it from lol. Thanks for sharing 🤠
good job explaining the difference . I own a TYM 474 cab tractor with hydrostatic and i love it.
Been operating a NH 30 HP with a hydro for 17 years, mainly moving various kinds of material. Your analysis is 100% correct. Great video for somebody tractor shopping. The nice thing about the NH is that it has a cruise control for those long runs.
I love your shirt and hydrostatic transmissions! Keep up the good work.
1- good video
Great info as always, thanks Brock!
Well done breaking it all down very clearly and