HST vs. Shuttle shift

[MechanicalGuy]

My mx5200 hst has a mechanical lever cruise control.

 

[mikester]

HST's do have cruise control. Depending on if you have electronic HST or older manual HST will depend on how it works. My JD with eHST has automotive style cruise control. It also has load match, so whn you are brush hogging or whatever, it will maintain RPM's and reduce speed to keep the power and speed to the PTO.

The JD eHST is the nicest HST Ive ever operated, very smooth. Kubota puts cruise control on other HST models, just not the M59.

JD also gives the option for excellent seats and air ride. Kubota seat just suck.

 

[ovrszd]

As Lou has already pointed out,,,, there are many, many times more variations of Shuttle Shift than HST. Due to Lou's profession he is familiar with Shuttle variations that many of us have never heard of.

The grader I run is a variation similar to what he described with his larger tractors. Even has "anti-stall". You can't kill the engine by trying to force the shuttle to do something the engine can't handle.

These "smarter" Shuttle Shift systems also have gear speed spaced so close they almost duplicate HST and are much, much more efficient.

 

[Tx Jim]

As Lou has already pointed out,,,, there are many, many times more variations of Shuttle Shift than HST. Due to Lou's profession he is familiar with Shuttle variations that many of us have never heard of.

I must have overlooked the thread showing Lou's profession. I asked Lou to state how many different variations of shuttle shift he thought there was & now you state there are """many,many variations of shuttle shift""". Would you or Lou please state to this forum how many shuttle shift variations y'all are referring to in numbers?? It will surprise me if there's more than 10
Thanks,Jim

 

[ovrszd]

I'll give it a go.

Power shuttle are incorporated in transmissions in three forms: counter-shaft, full planetary (power shifts), and CVT transmissions. (3)

Mechanical shuttle are also incorporated in transmissions in three forms that I am aware of. Non Sychronized, Sychronized, and Dual Transmissions. (3)

The Kubota Glide shift is it's own creation and has features the above listed do not. (1)

The variations of Power Shuttle have their own secondary variations. Two that JD uses that I have ran operate completely different. I'm not sure what their specific title for each is.

One requires the shuttle lever to go thru neutral to change from F to R also requiring the gear selection to be shifted to neutral and then gated/clicked to whatever gear you choose. (1)

One simple rocks the shifter inward for F, outward for R not changing the selected gear in the process. The transmission is smart enough to select the necessary gear to implement the movement change then shift thru the gears to the previous selected speed. (1)

How'm I doin? Let's see, that's (9).

I'll do some Google searching and see how many more I can find. I haven't even touched the CVT designs.

 

[ovrszd]

Oh Jim, for comparison why don't you tell us how many variations of HST there are? Thanks.

 

[LouNY]

Well I guess that would depend on what variations you would wish to count,
it's about like how many heel styles are popular in the State of Texas, I'd say many how about you.
Also I would say ten was many or several.
I'd say that every manufacture currently in business has at least 2 variations how do you want to count them,
or make it simple and call it 3 mechanical, power, computer that better???
Realistically I'd say that there are 6-8 significantly different styles as long as you don't start counting construction types, is that """"many""""?????

 

[Tx Jim]

Oh Jim, for comparison why don't you tell us how many variations of HST there are? Thanks.

I don't have a clue nor really care to know how many type HST there are but the operation of a HST once one gets past the type of control is IMHO fairly similar. Best I remember from my dealer service manger days is HST has a piston pump with a swash plate to change hyd flow/speed hydraulically powering a piston motor.

 

[Tx Jim]

Well I guess that would depend on what variations you would wish to count,
it's about like how many heel styles are popular in the State of Texas, I'd say many how about you.
Also I would say ten was many or several.

Realistically I'd say that there are 6-8 significantly different styles as long as you don't start counting construction types, is that """"many""""?????

I fail to understand what the number of type of boot heels in Texas or any of the other 49 states has anything to do with number of types shuttle shift. And I think 10 or less different types of shuttle shifts is not very many. I hope you have a wonderful day,Jim

 

[ovrszd]

I actually forgot two. One of which I own. My TLB ises a Toque Converter with a hydraulic shuttle and a non sychronized 4 speed trans.

My Brother's TLB uses a Torque Converter with a Hydraulic Shuttle and a semi automatic 4 speed. No gear shift lever. Just twist the knob on the shuttle lever.