Katahdin
Platinum Member
Opinions from an HST owner.
Cons of the HST:
The price. You guys with the Shuttle Shifts definitely are getting nice cash breaks, I envy you!
Parasitic power loss. The PTO HP output on the LX are surprisingly low. My 4tnv88 puts out 45hp, and the PTO output is measly 32.5hp. Really? I haven't figured out why this. I'd like to think its because the HST transmission is super heavy-duty for a tractor in its class, but who knows. I can say I can run a 6 foot cutter up a steep hill with tall grass no problem, in Medium gear. So I'm not unhappy with the power, just pointing out the stats.
Gentlemen, start your engines! If we were to race a shuttle shift LX against a HST LX, I'm guessing the shuttle shifters would win. Its fine for my purposes, but you can't help but feel the tranny is a little sluggish. I guess that's why they call 'em slush boxes.
PROs of the HST:
On uneven terrain and loader work I find the HST very handy and precise. I have not driven the shuttle-shift, but I can't imagine it can creep as slow over and around obstacles as well as the HST.
You have two independent throttles, the hand lever throttle, and the foot pedal throttle. When I'm moving between bush hogging spots I find its convenient to power down the hand throttle, turn off the PTO, then drive away using the foot throttle. When you reach your destination and stop, the engine idles down automatically, and now its safe to turn on the PTO and bump up the RPMs using the hand throttle.
Its safe and easy to drive for new tractor owners. Just take the foot off the pedal and the tractor will come to a smooth halt.
Cons of the HST:
The price. You guys with the Shuttle Shifts definitely are getting nice cash breaks, I envy you!
Parasitic power loss. The PTO HP output on the LX are surprisingly low. My 4tnv88 puts out 45hp, and the PTO output is measly 32.5hp. Really? I haven't figured out why this. I'd like to think its because the HST transmission is super heavy-duty for a tractor in its class, but who knows. I can say I can run a 6 foot cutter up a steep hill with tall grass no problem, in Medium gear. So I'm not unhappy with the power, just pointing out the stats.
Gentlemen, start your engines! If we were to race a shuttle shift LX against a HST LX, I'm guessing the shuttle shifters would win. Its fine for my purposes, but you can't help but feel the tranny is a little sluggish. I guess that's why they call 'em slush boxes.
PROs of the HST:
On uneven terrain and loader work I find the HST very handy and precise. I have not driven the shuttle-shift, but I can't imagine it can creep as slow over and around obstacles as well as the HST.
You have two independent throttles, the hand lever throttle, and the foot pedal throttle. When I'm moving between bush hogging spots I find its convenient to power down the hand throttle, turn off the PTO, then drive away using the foot throttle. When you reach your destination and stop, the engine idles down automatically, and now its safe to turn on the PTO and bump up the RPMs using the hand throttle.
Its safe and easy to drive for new tractor owners. Just take the foot off the pedal and the tractor will come to a smooth halt.