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2. 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 ...

3. Ferguson TE20 - Wikipedia

   en.wikipedia.org/wiki/Ferguson_TE20

   The tractor played a large part in introducing widespread mechanised agriculture. In many parts of the world the TE20 was the first tractor to be affordable to the average farmer and was small and light enough to replace the draft horse and manual labour. Many TE20s remain in regular use in farming and other work and the model is also a popular ...

4. Pilot-operated relief valve - Wikipedia

   en.wikipedia.org/wiki/Pilot-operated_relief_valve

   A separate actuator on the piping releases pressure in the line if it crosses a threshold. This releases the pressure on the back of the seal, causing the valve to open. The essential parts of a PORV are a pilot valve (or control pilot), a main valve, a pilot tube, the dome, a disc or piston, and a seat. The volume above the piston is called ...

5. Desmodromic valve - Wikipedia

   en.wikipedia.org/wiki/Desmodromic_valve

   A desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring. The valves in a typical four-stroke engine allow the air/fuel mixture into the cylinder at the beginning of the cycle and exhaust spent gases at the end of the cycle. In a conventional ...

6. SAME (tractors) - Wikipedia

   en.wikipedia.org/wiki/SAME_(tractors)

   The engine was a two stroke horizontal two-cylinder unit with a capacity of 12,723 cm3 producing forty horsepower at 550 rpm, with wick ignition, a compressed air starter system with pressurised air tank air, 4 speeds (3 FWD and 1 REV) and a top speed of 15 km/h. [2] This tractor was sold at a price of 28,000 Lire.

7. Trump’s approval rating jumps to one of his all-time highest ...

   www.aol.com/trump-favorability-jumps-post...

   There has been somewhat sparse polling of Trump’s favorabilities ratings in the wake of the Nov. 5 election. Another poll from the Economist/YouGov gauged it at 50% favorable to 49% unfavorable.

8. The most dangerous roads during Christmas and New Year's Eve

   www.aol.com/finance/most-dangerous-roads-during...

   Last year, more than 115 million Americans were projected to drive 50+ miles during the holiday season. Unfortunately, according to the National Safety Council, both Christmas and New Year's Eve ...

9. Severe weather to rattle south-central US through Friday - AOL

   www.aol.com/weather/severe-weather-rattle-south...

   A potentially volatile post-Christmas severe weather event will put more than 10 million people at risk for damaging thunderstorms across part of the south-central United States, AccuWeather ...