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2. Power take-off - Wikipedia

   en.wikipedia.org/wiki/Power_take-off

   A PTO at the rear end of a farm tractor A PTO (in the box at the bottom) in the center of the three-point hitch of a tractor. A power take-off or power takeoff (PTO) is one of several methods for taking power from a power source, such as a running engine, and transmitting it to an application such as an attached implement or separate machine.

3. List of John Deere tractors - Wikipedia

   en.wikipedia.org/wiki/List_of_John_Deere_tractors

   The R also incorporated live hydraulics. PowrTrol, as it was known, provided the operator the ability to lift equipment by the pull of a lever. A pump powered by the PTO clutch provided 1,800 psi (12 MPa) of hydraulic pressure to a lever controlled valve. At 45 hp (34 kW) at the drawbar and 50 hp (37 kW) at the belt, it was the most fuel ...

4. Fortschritt ZT 300 - Wikipedia

   en.wikipedia.org/wiki/Fortschritt_ZT_300

   The first clutch stage connects the gearbox, the second stage connects the PTO shaft(s), hydraulic system and the load stage of the gearbox. The load stage increases the torque transmitted to the wheels. It can be switched without having to stop the tractor by moving the load stage lever and pressing the clutch pedal. [2]

5. Cockshutt 30 - Wikipedia

   en.wikipedia.org/wiki/Cockshutt_30

   Starting in 1939, Cockshutt studied designs for a Cockshutt-built tractor, with effort accelerating as World War II and war-related production drew to a close. In particular, a need was identified for a "live" power take-off (PTO) drive; i.e. a PTO that provided full power whether the tractor was moving or not, operated by its own clutch. The ...

6. Ford N-series tractor - Wikipedia

   en.wikipedia.org/wiki/Ford_N-series_tractor

   A continued drawback to this series of tractor, was the lack of a "live" PTO. Without a live PTO certain implements such as brush cutters which store inertial energy could send that back into the transmission. This would cause the tractor to surge forward if the clutch were disengaged. This was addressed with the advent of the PTO overrunning ...

7. Tractor - Wikipedia

   en.wikipedia.org/wiki/Tractor

   An implement connected to a tractor's power take-off (PTO) shaft. Modern tractors use a power take-off (PTO) shaft to provide rotary power to machinery that may be stationary or pulled. The PTO shaft generally is at the rear of the tractor, and can be connected to an implement that is either towed by a drawbar or a three-point hitch.