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Deere has chosen to utilize an exhaust filter (DOC) and/or diesel particulate filter (DPF) to reduce particulate material so the engine can operate at a level which produces less nitrogen oxide (NOx). With less NOx created, it requires less DEF to treat or no DEF for 3-cylinder models. The result is improved total fluid economy (diesel and DEF). Some applications also reduce NOx using cooled exhaust gas recirculation (EGR) that allows a controlled amount of exhaust gas to be returned to the engine leading to lower combustion temperature for a cleaner, more efficient exhaust. Complete with six screws and two drill bits, the John Deere Preschool Build-A-Johnny Tractor is sure to get your little one's cogs turning and their imagination rolling.
Provide quieter operation and excellent reliability while the pressure-lubricated top shaft adds to the transmission durability For more than 180 years, John Deere has led the way in developing innovative solutions to help their customers become more efficient and productive. They conduct business essential to life. Running for the people who trust them and the planet that sustains us. Fully enclosed, rigid shift linkages for short throw and crisp shifts enable all operators to clearly know in what range and gear they are operating Little ones feel like real engineers as they use the battery-powered drill to screw all the pieces of this tractor pal together.Once it's built, they're ready to roll into hours of pretend-play adventure! Or they can just take it apart and build it again and again.
The gear lever selects one of four speeds, all synchronized shifts for on-the-go shifting with the use of the clutch. This same lever is where the hi-lo control buttons are located which provide a single shift up/down in speed within each forward range. The rear lever selects ranges A, B, C, or D. All ranges are fully synchronized which means, when shifting, operators can move between any range A-D without stopping the tractor.The gear-shift lever is easy to reach, and the less-used range lever is shorter. Unique knobs make it easy to distinguish between the two The adjustable depth stop (found on both control types) provides consistency when lowering the hitch. Each time the position control lever is pushed forward, it stops where the depth stop has been positioned. This feature is a value to anyone who desires a consistent, level ground, like when preparing a seedbed. The engine is programmed to aggressively respond to changes in power needs, which can temporarily increase particulate matter. Since the exhaust filter removes particulate matter instead of the engine, the engine is left free to do what it is designed to do – deliver all of the power, torque, plus transient response needed at the exact moment needed. SCR is the final step in the process of reducing engine exhaust emissions to meet FT4 regulations. This process allows for the flow of engine exhaust dosed with DEF to pass from the SCR, reducing the presence of NOx converting it from NH3 to N2 (nitrogen gas) and H20 (water). The SCR canister is a welded, stainless assembly which requires no service. It also serves as a thermal insulator and provides additional noise reduction. Enable the following benefits by equipping your tractor with AutoTrac, a 4240 Universal Display and a StarFire™ receiver:
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