Hydrostatic transmissions

550Doug · Jul 5, 2021

The one thing I don't like about my case 222 is that it free wheels down hills. Do all hydro transmissions do that? What about the Ford LGT series? Are there any of the non-foot-pedal hydros that do not free wheel?

Roger in Iowa · Jul 5, 2021

I think your tractor is not hydrostatic, but hydraulic. They freewheel.

Hydrostatic does not freewheel unless really worn out or other problems.

I have three JD tractors, 300, 316 and 318 that are not foot controlled and they do not freewheel.

gab · Jul 5, 2021

These two Wheel Horses pick up speed going down hill. Think one has an Eaton seven and the other Eaton nine hydro.

jacks · Jul 5, 2021

The later Case garden tractors and Ingersolls used a main control valve which
prevented freewheeling down hill. You can also move the control lever to the
retard position when going downhill and it will provide braking. If you go on
one of the Case Ingersoll garden tractor groups they could tell you which
later model control valve would fit your 222.

RogerinIowa · Jul 5, 2021

Picking up speed is normal of any transmission. His, you have no control, they freewheel.

kencombs · Jul 5, 2021

that is correct, Case uses a separate hyd pump and motor with a valve to control speed. As others mentioned there is a replacement valve that will control it or an addon valve from older models that does the same thing, but external to the main valve.

I have a later Ingersoll, Case design but after the sale, that has the later valve and it works fine.

All true hydrastats have some holdback on hills, some more than others. MY JD 455 with a little loader will not hold on steep hills, especially with any added weight in the bucket.

Blackhole49 · Jul 6, 2021

When I had my older hydraulic 446, it would freewheel down hill unless you used the retard position. I got the unit
cheap because the previous owner felt it was unsafe. My three older hydostatics will all stop going down the same hills.

RogerinIowa · Jul 6, 2021

Bet your rear wheels are sliding, therefore no hold back.

kencombs · Jul 6, 2021

Nope. 100 lbs of weight on each wheel. Even happened when I had ATV tires on it. Machine is just a little too heavy for the trans. Probably 17-1800 lbs + any bucket load. And it has several hours on it so Im sure there is some wear in the bores/pistons in the pump and motor sections. It only happens on really steep hills.

CKain(MI) · Jul 16, 2021

All older Case hydraulic drive GT's, will free wheel downhill. Most of us 'Case users' use the travel control lever to 'control' the speed downhill. There is a improved valve that can be installed.

Hydrostatic transmissions

550Doug

Member

Roger in Iowa

Well-known Member

gab

Well-known Member

jacks

Member

RogerinIowa

Member

kencombs

Well-known Member

Blackhole49

Well-known Member

RogerinIowa

Member

kencombs

Well-known Member

CKain(MI)

Well-known Member

Similar threads