kiotiken
Veteran Member
Yeah, Kubota has them, but I wish they didn't.
I'll second that, the most annoying design feature by far.
Yeah, Kubota has them, but I wish they didn't.
I have never driven a tractor with a Hst tranny so I can't speak to the pros and cons. I bought a lease return tractor that was big enough for my needs, at a cost I could afford and it had shuttle shift. Works fine. It is paid for. If there is a next tractor, I will have to make a choice. If Hst is anything like an automatic tranny, a bit of a bore, I will go running back to the shuttle shift.
But when my neighbor fires up his Kubota with Hst I always know because of the nasty whining noise that I can hear at 500 feet. I assume that ear protection is a good idea. Do they all whine like that?
Daedong CUTs (Kioti/Bobcat/McCormick/Landini) do have a clutch pedal on the HST model. You can't start it unless it's pushed in and they have a lock to lock it open if it's being stored, other than that, it's not used. I could be completely wrong, but I think some Kubotas have them too.
You can only shift on the move with the Kubota HST+ (I believe JD has a version called eHydro). Daedong uses the older HST type transmission and you have to stop to change ranges.
what's hst plus
It's call HST+ at Kubota, and yes, it is expensive. JD has a similar version, can't remember what they call it.
Sorry, didn't see nybirdman beat me to it.
Yes, Kubota and JD have a dual speed HST. New Holland was the first to have something similar. I have that on my New Holland, but when I need to change ranges of the geared portion, I still have to stop and move a lever. Now I could be wrong, but I believe to move into a higher/lower geared range, both Kubota and JD require a manual shift. The way the dual speeds on HSTs are done is by changing the angle of the swashplate in the motor side of the HST. Your foot pedal changes the swashplate on the hydraulic pump, but by changing the swashplate angle on the motor, there is a "dual-speed" effect.
Yes, Kubota and JD have a dual speed HST. New Holland was the first to have something similar. I have that on my New Holland, but when I need to change ranges of the geared portion, I still have to stop and move a lever. Now I could be wrong, but I believe to move into a higher/lower geared range, both Kubota and JD require a manual shift. The way the dual speeds on HSTs are done is by changing the angle of the swashplate in the motor side of the HST. Your foot pedal changes the swashplate on the hydraulic pump, but by changing the swashplate angle on the motor, there is a "dual-speed" effect.
Ken, I don't own an HST Kioti, but I'm not sure you have this right. The DK series with electric over hydraulic PTO switches don't have clutch pedals because the switch is used to control PTO. And on the CK HSTs, I think the clutch still disengages the PTO (live PTO), but serves no purpose for the tranny.
The clutch on my Kubota is needed to start the engine (safety switch) but it also disegages the hydro as well as the PTO.. It also allows you to soft start up the PTO by throttleing down and feathering the clutch as the load on the PTO ramps up. Also an easy safety "switch" when your rotary cutter finds a big ole rock. It is easier to stomp that clutch, which you have been trained to do for years driving gear tractors than hunt around on the dash for the dang electrical switch that disengages the PTO.. So I like my clutch.. but for 99 percent of the time.. it is as useless as those appendages on a boar hog:laughing:
James K0UA
None of my HST tractors have clutch pedals. Are some of us missing out? My New Holland has two non-synchronized mechanical ranges. Are you able to shift between ranges on the move by engaging the clutch pedal?
Thats your opinion.do not EVER use a hydro tractor, especially for loader work or tight mowing or anything that requires a lot of directional changes, because all it will do is cause hate and discontent. Don't ask me how I know
James K0UA
Thats your opinion.
I have a DK 35 with shuttle shift. A friend of mine has a DK 35 with hydro.
I've used his hydro tractor several times. The hydro is nice, and easy to use, but it certainly didn't make me feel I need to run out and buy one.
My shuttle works just fine for loader work and mowing.
If your going to perform any real tractor tasks, plowing fields, discing , planting corps etc....Hydrostatic drive just don't cut it. Hydrostatic drive is a toy gentlemans tractor for those that want a tractor for around the yaad tasks, a gear box is for real work IMHO........I have owned both and thats the bottom line for me.