HST vs. Shuttle shift

[k0ua]

I've said this before, maybe in this thread, I've got three tractors with three different transmissions. Each one is perfect on that particular tractor.

Exactly. If one transmission was perfect for all applications, that would be the one that every manufacture would make.

 

[ovrszd]

Exactly. If one transmission was perfect for all applications, that would be the one that every manufacture would make.

Yep, and I can see how the HST would be much preferred for "pineapple harvest".

 

[k0ua]

Yep, and I can see how the HST would be much preferred for "pineapple harvest".

That and the strawberry harvest in January.

 

[Tx Jim]

It would be interesting to see an accurate comparison of efficiency with a 50hp HST versus a 50hp gear drive doing the same ground engagement task. I would suspect the fuel useage after a few hours would be much different. Maybe 25% or more?

I don't recall ever seeing such a comparison.

Below is a comparison of 2 similar older higher HP tractors with gear drive vs hydrostatic. Max drawbar pull in #s 986=5938#s @5.69 mph 186=5032#s @5.95 mph

 

[kenmac]

When I hook a chain to a stump to pull it over, I prefer my hydrostat to any other type of transmission, as I can apply stead, even and ever increasing pressure. No jerking. That is rather "ground engagening".

And, when you back up to an attachment and don't get it just right. I can just walk around to the HST pedal and push it down to go forward some,or back up some. I don't have to climb back on the tractor, place it in gear and try to back up to just the correct spot

I wish my CX105 was HST instead of shuttle

 

[5030]

Not true. I pull a heavy 24x22x9 2160# disk with my HST.

I don't consider a disc cultivator all that 'ground' engaging. Now a Swedish tine cultivator or moldboard plow, certainly. HST's run inherently hotter as well.

Bottom line is of course whatever blows your dress up. My dress prefers a gear drive.:laughing:

 

[k0ua]

I don't consider a disc cultivator all that 'ground' engaging. Now a Swedish tine cultivator or moldboard plow, certainly. HST's run inherently hotter as well.

Bottom line is of course whatever blows your dress up. My dress prefers a gear drive.:laughing:

The thought of you out there operating your gear driven tractor with you dress on, but blowed up around your waist paints a very disturbing mental picture.

 

[Steppenwolfe]

I don't consider a disc cultivator all that 'ground' engaging. Now a Swedish tine cultivator or moldboard plow, certainly. HST's run inherently hotter as well.

Bottom line is of course whatever blows your dress up. My dress prefers a gear drive.:laughing:

Agree 100%, but we say, whatever tilts your kilt...

 

[kenmac]

I don't consider a disc cultivator all that 'ground' engaging. Now a Swedish tine cultivator or moldboard plow, certainly. HST's run inherently hotter as well.

Bottom line is of course whatever blows your dress up. My dress prefers a gear drive.:laughing:

well, It does engage the ground. You can go pretty deep depending on how much cut you put in it.

It all comes down to what you want. I enjoy my 105 hp shuttle and my MX5100 HST. Wish my 105 was HST

 

[5030]

well, It does engage the ground. You can go pretty deep depending on how much cut you put in it.

It all comes down to what you want. I enjoy my 105 hp shuttle and my MX5100 HST. Wish my 105 was HST

Too much parasitic loss with an HST. A hydrauilc shuttle is is almost as good with hardly any parasitic loss.

I very rarely clutch my hydraulic shuttle but then it has no clutch anyway. The shuttle pack is the clutch pack as well.