I'll try to answer some questions. Motor is mil-spec air cooled 4 cylinder, model 4a084. One diff runs backwards. hydro pumps are plumbed in common, so theoretically there could be wheel spin, but I haven't seen much. Steering pivot is right in the middle. I've since added a Volkswagen carb that has accelerator pump, that really helped low end torque. I added a snowplow using a simple light duty winch to raise and lower. I'm working on a video of still photos with voice over to describe the build.
Nobody gives a hoot that you made a hydraulic tractor. Sad that you need people to appreciate your reinvention of the wheel to feel good about yourself lol.
@@zefzone-215 Yah there is absolutely NO ROOM for any reflection from "actual experience" for the threatened, trolls. TROLLs should control all commutations as after all it is ALL ABOUT YOU Zefzone . Grow up, get a clue, move out of your parents basement already.
No I just see you in these comments acting like everyone is a dumbass as if what you made had any utility. Keep riding that horse it only proves my point. Lol all of a sudden I live in moms basement eh? Real original, don’t try too hard. What you are trying to say is that I’m “gate keeping” - which is false. If you have one thing right it’s that no one gives a shit about your dumb little hobby. Why don’t you post another random link to your favorite hydrostatic motor dealer to those who never asked you senile old fuck.
Hi Charles..... this is an awesome vehicle for a farm.....where a normal ATV won't get the job done neither will a normal mini 4x4 tractor would be out of question. Please list the draw bar out put.....(Max power at draw bar!?), and other configurations....Engine, hyd motor, etc!?
Have you considered putting a pressure compensated flow control valve inline between your pump and valve? That would allow you variable speed without the expense of a variable displacement pump or motors. just food for thought.
I use a full range pressure compensating valve, which allows me to run fixed displacement pump and motors. Decent low end torque, but not great. Motors are geroler type.
I used junkyard rear differentials from Subaru Outbacks. I made adapters to bolt fixed displacement hydraulic motors on to the ends of these. I got motors from Surplus Center. I plumbed both motors together, so wheel spin is still possible, hasn't been a problem yet. I have loose sand, works OK even on hills.
Are both axles driven the same direction or is one mounted reverse? I'm in the process of cobbling something similar together but am wondering if I am ok driving a diff in reverse long term.
I have another video on my channel that shows a bit of the drivetrain. One diff is running in reverse. I suppose that could be a risk, although I doubt I will be putting a huge amount of miles on the tractor.
Ya found that, most of my debate is about how to make it part time 4 wd and center articulating. Almost thinking of putting the motor on the input of a transfer case instead of using 2 motors with the misfortune of then needing to run an articulated shaft between the transfer case and the axle.
Gee David Lets see you build one and show us. To get the range of torque and speed requires a transmission of some kind or a piston motor to achieve both.
@@sojournsojourntraveler1203 What are you talking about? The way he had it in the video it looks ready to haul. Doesn't need a transmission and it has an aircooled engine already
@ amorag59 What I am stating is that a hydro static drive vehicle is much more complicated than a machine with a automatic or a gear transmission for example . For me to answer your question I would have to write a book. I will pose these considerations for you to consider . How many pump possibilities are there ? * Pump size ? = Many that could be wrong / Ka-ching / Ka-ching * Pump type ? = Many that could be wrong /Ka-ching / Ka-ching * Gear ratio of pump to engine Many that could be wrong /Ka-ching --------------- Then we get to the Motors = same kind of situations as pumps only reversed to achieve the demands for speed and torque matching up to the pump. Then there is the situation of matching pumps to motors even a bigger can of worms. Note the piston pumps are mostly computer controlled any more. Then there is the issue of the controls . valve issues dealing with the pumps and motors and many other control issues with subtleties of how it is plumbed . I have built hydra static drive vehicles with pressure switches to control valves with different pumps and motors and the relays started reacting to one another. kind of like AI. You may have seen hydro drive vehicles with a separate motor going To each wheel , well what happens when they all stop when one wheel looses traction ? Would you know how to solve the issue ? Are you ready to deal with draining oil from the system to try a solution that is going to cost how much ? Is your solution going to work and do you have room for the alterations ? How long is the process of refining the relationship between all the components ? Your comment reflects your lack of understanding of what is involved . A little bit of knowledge is dangerous and expensive. Many people peddling blue sky projections of their products. Then there is the issue of the viscosity of the oil for your application and components with different demands in this regard . Then there is the idea of what HP engine is needed to do the work. Last count there are some 205 different Horse Power rating / formula around the world . Not everyone uses James Watt HP formula for calculations. Yes I have to state, Lets see you build one and show us .
@@sojournsojourntraveler1203 "Lack of understanding of what's involved?" You need to stop flattering yourself by randomly writing arbitrary essay length ramblings and actually watch the video. No let's not "see me build one" that's the whole point of this video.
@ amorag59 what ever I stated the realities .and It is clear you need to learn for your self. go for it. I will not be contributing to your education any more.
I'll try to answer some questions. Motor is mil-spec air cooled 4 cylinder, model 4a084. One diff runs backwards. hydro pumps are plumbed in common, so theoretically there could be wheel spin, but I haven't seen much. Steering pivot is right in the middle. I've since added a Volkswagen carb that has accelerator pump, that really helped low end torque. I added a snowplow using a simple light duty winch to raise and lower. I'm working on a video of still photos with voice over to describe the build.
Few people actually can appreciate a successful hydro-static drive.
I have built a hydro-static drive car with a 2,000 psi side and a 5,000 psi side.
Nobody gives a hoot that you made a hydraulic tractor. Sad that you need people to appreciate your reinvention of the wheel to feel good about yourself lol.
@@zefzone-215 Troll
Genius, and does a frog have a water-tight ass? Try not to churn your loins too much here in your little accomplishment, this is a public forum.
@@zefzone-215 Yah there is absolutely NO ROOM for any reflection from
"actual experience" for the threatened, trolls.
TROLLs should control all commutations as
after all it is ALL ABOUT YOU Zefzone .
Grow up, get a clue, move out of your parents basement already.
No I just see you in these comments acting like everyone is a dumbass as if what you made had any utility. Keep riding that horse it only proves my point.
Lol all of a sudden I live in moms basement eh? Real original, don’t try too hard. What you are trying to say is that I’m “gate keeping” - which is false. If you have one thing right it’s that no one gives a shit about your dumb little hobby. Why don’t you post another random link to your favorite hydrostatic motor dealer to those who never asked you senile old fuck.
Hi
Charles..... this is an awesome vehicle for a farm.....where a normal ATV won't get the job done neither will a normal mini 4x4 tractor would be out of question.
Please list the draw bar out put.....(Max power at draw bar!?), and other configurations....Engine, hyd motor, etc!?
Just found your channel and Subscribed. Really nice tractor
Have you considered putting a pressure compensated flow control valve inline between your pump and valve? That would allow you variable speed without the expense of a variable displacement pump or motors. just food for thought.
I use a full range pressure compensating valve, which allows me to run fixed displacement pump and motors. Decent low end torque, but not great. Motors are geroler type.
I used junkyard rear differentials from Subaru Outbacks. I made adapters to bolt fixed displacement hydraulic motors on to the ends of these. I got motors from Surplus Center. I plumbed both motors together, so wheel spin is still possible, hasn't been a problem yet. I have loose sand, works OK even on hills.
Are both axles driven the same direction or is one mounted reverse? I'm in the process of cobbling something similar together but am wondering if I am ok driving a diff in reverse long term.
I have another video on my channel that shows a bit of the drivetrain. One diff is running in reverse. I suppose that could be a risk, although I doubt I will be putting a huge amount of miles on the tractor.
Ya found that, most of my debate is about how to make it part time 4 wd and center articulating. Almost thinking of putting the motor on the input of a transfer case instead of using 2 motors with the misfortune of then needing to run an articulated shaft between the transfer case and the axle.
What a beautiful job. I would like to see plans. Thank you for great ideas!
Prevedi na srpski
Hey Griff. . needs a snow plow on it. Then everyone would want it.
Very nice tractor!! What kind of hydraulic pump and motors do you use?
Hello, very well done. Will you please share where can I buy the exact same wheels with hydraulic motors? It will be highly appreciated.
have you tried making a dozer or some heavy machines?
What's the capacity of the hydraulic motor? Is that 400cc orbital motor?
What size hydraulic motors did you use, and what size hydraulic pump?
Very nice machine.
interesting machine. how many hydraulic fluid to you use? Do you have problem with a high hydraulic fluid temperature?
20 gallons. Volume is to mitigate temp rise. No problems yet, but I've only run it an hour at a time max.
Hi, Awesome Job can I use part of your video to my compilation homemade inventions and projects ?
Sure
What is the GPM on your pump/ motor, reservoir size?
See other video on my channel for component specs.
👍👍👍biutiful like
cool shirt!
Bacana .cual as medidas dos pneus
Motor details
hook up a log, something! let's see it put to work!
Gee David Lets see you build one and show us.
To get the range of torque and speed requires a transmission of some kind
or a piston motor to achieve both.
@@sojournsojourntraveler1203 What are you talking about? The way he had it in the video it looks ready to haul. Doesn't need a transmission and it has an aircooled engine already
@ amorag59
What I am stating is that a hydro static drive vehicle is much more complicated than a machine with a automatic or a gear transmission for example . For me to answer your question I would have to write a book. I will pose these considerations for you to consider .
How many pump possibilities are there ?
* Pump size ? = Many that could be wrong / Ka-ching / Ka-ching
* Pump type ? = Many that could be wrong /Ka-ching / Ka-ching
* Gear ratio of pump to engine Many that could be wrong /Ka-ching
---------------
Then we get to the Motors = same kind of situations as pumps only reversed to achieve the demands for speed and torque matching up to the pump.
Then there is the situation of matching pumps to motors even a bigger can of worms. Note the piston pumps are mostly computer controlled any more.
Then there is the issue of the controls . valve issues dealing with the pumps and motors and many other control issues with subtleties of how it is plumbed .
I have built hydra static drive vehicles with pressure switches to control valves with different pumps and motors and the relays started reacting to one another. kind of like AI.
You may have seen hydro drive vehicles with a separate motor going
To each wheel , well what happens when they all stop when one wheel looses traction ? Would you know how to solve the issue ?
Are you ready to deal with draining oil from the system to try a solution that is going to cost how much ? Is your solution going to work and do you have room for the alterations ? How long is the process of refining the relationship between all the components ? Your comment reflects your lack of understanding of what is involved . A little bit of knowledge is dangerous and expensive. Many people peddling blue sky projections of their products.
Then there is the issue of the viscosity of the oil for your application and
components with different demands in this regard .
Then there is the idea of what HP engine is needed to do the work.
Last count there are some 205 different Horse Power rating / formula around the world . Not everyone uses James Watt HP formula for calculations.
Yes I have to state, Lets see you build one and show us .
@@sojournsojourntraveler1203 "Lack of understanding of what's involved?" You need to stop flattering yourself by randomly writing arbitrary essay length ramblings and actually watch the video. No let's not "see me build one" that's the whole point of this video.
@ amorag59
what ever
I stated the realities .and It is clear you need to learn for your self.
go for it. I will not be contributing to your education any more.
mei want to knw how to place the motor on the wheel to move it really givess me hard time
Super
Looks great. I’m looking for someone to build me something like that . I have lots of donor parts to build a few.if you know anyone.