FST vs. GST

[mcnitt]

I have a grand L3430 with the full synchro transmission. I am completely satisfied with it, but I would like to know how the Glide shift transmission is different. I tried using the search function, but I couldn't get anywhere with it.

 

[TripleR]

I have a grand L3430 with the full synchro transmission. I am completely satisfied with it, but I would like to know how the Glide shift transmission is different. I tried using the search function, but I couldn't get anywhere with it.

If he doesn't show up, check with Agrantina, he has a 3240 GST.

 

[Verticaltrx]

The GST is basically like a powershift transmission. You can either shift using the clutch or just push the gear shift lever to the next speed and it will shift by itself using an electro-hydrualic clutch pack. You can shift up and down and also from forward to reverse on some models without clutching, IIRC. Not quite like powershift on the big ag tractors, but pretty close.

 

[David_Kb7uns]

Not sure how a Powershift transmission works but from reading a description they sound different then the GST since the Kubota only has clutch packs for forward and reverse and you must clutch fully before shifting.
The GST is a synchronized gear transmission with hydraulic plungers shifting the forks in the transmission. The newer GST such as I have on my L3130 use solenoid valves controled by a ECU to do the gear selection and clutch feathering using the hydraulic clutch packs. Since you are not limited by having shifter forks going to a shifter there is a little more flexability and that is why the GST has 12 forward and 8 reverse, although you could have 12 reverse I think the put the limit at the 8 slower gears for safety.



David Kb7uns