Posted by scotc on July 03, 2011 at 11:21:23 from (75.245.49.140):
In Reply to: Re: inventions posted by MF Poor on July 02, 2011 at 19:43:24:
STS- Synchro-Tri-Six transmission, three ranges with six speeds each, with the 1-2, 3-4, and 5-6 shifts being powershift, like the JD powerquad.
Every 72 and 7488 not in private hands was destroyed as soon as the papers were signed.
Ever seen one? That's where the Magnum rear-end and 18 speed powershift was born.
They had 4 models planned up to 300 PTO HP, but never got the 76's and 78's into production.
The AC powerdirector is nice for PTO work, especially round baling. Plug up the pickup head, pull uphill,hit the clutch, let it roll slowly back and feather the hand clutch, and you can usually spit the plug right back out.
I'd give IH credit with actually putting a road gear in the tractor. Had a neighbor with AC's that complained about us having to shift the IH on hills, when he didn't. He also didn't like it when you topped the hill behind him, shifted back into high, and passed him.
One thing about the 4840 I hate. Top speed 17.8MPH by GPS, unless going downhill.
Ford may have built the first powershift, but JD didn't get the bugs worked out. Unless you want to count the powerquad. The 4450s and even 7810s still jerk and lunge and do all kinds of weird things on the 6-7, 11-12, and 13-14 shifts. Even in newer ones like the 7820, the powerquad is superior to the powershift, in that the shifts are a lot smoother.
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