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Power an implement at 540 PTO rpm at a lower tractor engine rpm with Economy PTO (540E PTO). Depending on the transmission, the 540E PTO engine requirement could be as low as rpm. 540E PTO is ideal for many lighter-duty applications including mowing or spraying that do not require full engine horsepower.
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How does 540E PTO work?
On John Deere Tractors, the shiftable 540/540E mode operates a little like shifting gears on the transmission. By engaging economy mode, the operator changes the gear reduction ratio keeping the PTO spinning at 540 rpm while reducing the engine rpm. When the operator shifts the PTO back into the standard 540 mode, a different gear ratio is used to operate the PTO at 540 rpm and the engine at standard PTO rated speed.
To operate in economy mode, the shiftable 540/540E lever must be in 540E and then the throttle can be increased to the appropriate rpm. When in 540E, the tractor has a throttle limiter that keeps the operator from increasing engine rpm over the 540E setting. The limiter is used to prevent accidental over-speeding of PTO implements and protection against binding the PTO shaft.
The 540E setting cannot be used with full advertised PTO horsepower. If full PTO horsepower is required, operate the tractor in the standard 540 mode.
Details on the engine rpm required for standard 540 and 540 economy mode can be found in the operator's manual along with additional details on operation and adjustment.
The stationary PTO enable switch is in base for all Utility Tractors produced starting on 1 November (except for the 5E 3-Cylinder Tractors with 9F/3R transmission which began in November ). The PTO shuts down if the operator leaves the seat with the PTO on. Stationary operation of a tractor PTO-powered implement allows the operator to leave the driving position with the PTO engaged by pressing the stationary PTO enable switch. See operator's manual for additional details on operation and adjustment. Refer to the chart below for models with the stationary PTO enable switch in base.
If you want to learn more, please visit our website Small Multi-purpose farm tractors.