Throttle for shuttle shift

[k0ua]

Here's a related question that I can't find in search (iPhone again). Can I shift my crash box tranny on the fly? I know the manual says not to, but that doesn't make sense to me. Seems that if I match gear to RPM it should slide in nice and easy. Obviously I haven't tried this.

(I only mean forward gears, not forward-reverse)

What about high and low ranges? Can I shift those on the fly? Can HST tractors do it?

In my experience no not very well. occasionally you can match speeds and do it, but most of the time no. No on the range shifting, No on the HST either as they are not syncro either. Some of the more upscale hydrostats have a high low that can automatically shift on the fly, Kubota HST+ and the New Holland has the Turtle Rabbit switch but this is not swapping gears it is doing something inside the hydro. I think JD has something similar. My hydro does not have these features, but I seldom change ranges anyway. There are several good videos on you tube on Hydrostat + on the Kubota.

James K0UA

 

[TripleR]

I have up-shifted with a non synchronized transmission, but no down shifting. Not shifting between ranges on any of our HST; don't know if this is universal.

 

[ddb123]

I have up-shifted with a non synchronized transmission, but no down shifting.

I'm going to try it. Use foot throttle like a car, or just set and forget with hand throttle?

 

[k0ua]

I'm going to try it. Use foot throttle like a car, or just set and forget with hand throttle?

grind... grind....if you grind off a pound, send it on up and we can make coffee:laughing:

James K0UA

 

[TripleR]

I'm going to try it. Use foot throttle like a car, or just set and forget with hand throttle?

I grew up farming with a Ford 600 then later a 841 and did the throttle up and down as well as leaving it at a set RPM, did the same thing with a Case 995 and Massey Ferguson.

I have never driven a tractor like yours.

 

[toxicjeeper]

On the Higher RPM Shuttle shifting...

I also set my rpm at around 1500 and shift back and forth( shuttle) ALOT when plowing snow. I use the foot throttle from 1500 on up to 2400( for the snowblower).I have done it this way for years and even did it with my old 79 ford 3500 even tho it didnt have a shuttle 2nd gear and rev lined up..I dont think it hurts them and i think the fact that the clutch isnt dragging as long shifting in this manner would cause less wear than "riding" the clutch..

 

[billfires]

As the original poster, (almost 10 years ago), I can say that I use the foot throttle almost exclusively when doing loader work. Sometimes if I am digging into a gravel bank I will set the hand throttle to 12-1300 rpms, to prevent stalling, and also use the foot throttle for higher rpms. When using the BH I obviously have to use the hand throttle. Bill C

 

[ddb123]

As the original poster, (almost 10 years ago), I can say that I use the foot throttle almost exclusively when doing loader work. Sometimes if I am digging into a gravel bank I will set the hand throttle to 12-1300 rpms. When using the BH I obviously have to use the hand throttle. Bill C

Wow, I didn't even realize this thread was that old!

 

[rd_macgregor]

Cars didn't always have synchro transmissions. Double-clutching was the usual method of matching engine to gear speeds. A good operator who knew his machine well, could nail shifts without noticeable grinding 9 times out of 10 (more or less).
BOB

 

[dennis52]

grind... grind....if you grind off a pound, send it on up and we can make coffee:laughing:

James K0UA

Whine....Whine.... will be the coffee hst:thumbsup: