Then you have to ask about independent pto too. ;)
The first tractors had the shaft from the engine, the clutch, and then everything happening in the rear end - transmission, pto, and hydraulic pump.
So when you push in the clutch, -everything- stops running behind the engine.
They realized that wasn't so good, so they came up with other ways to power the hydraulic pump, closer to the engine not after the clutch. So now the hydraulics are live - always work when the engine is running.
Then they figured out to run 2 shafts, and 2 clutches, that release at different times for the transmission and pto. So when you push the clutch 1/2 way in the transmission clutch releases, but the pto clutch keeps spinning. So you have live pto. If you push the clutch all the way then both clutches release, and both the transmission and the pto stop. This is a live pto.
Then they figured well that is still interconnected a bit. So they came up with independent pto. This has the typical clutch for the transmission, and a totally seperate clutch, usually hand operated, for the pto all by itself. So you can shift either or both the transmission and the pto at any time and not affect the other at all.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [Read Article]
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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