Description
The engine uses the latest technologies to optimize fuel economy, improve control and accuracy, and reduce environmental impact. The common rail system (CRS) optimizes fuel economy and reduces operating costs comparted to engines not using CRS technology. High-pressure injection atomizes fuel into finer particles which burn more completely. It results in improved fuel economy and a lower cost of operation.
The electronic control unit (ECU) provides optimum fuel control and accuracy. ECU monitors and controls the engine. It continuously monitors engine conditions and adjusts the fuel delivery accordingly to ensure optimum performance and emissions.
The engine comes with an after-treatment system. The system operates automatically. The exhaust filter consists of a diesel particulate filter (DPF) which captures particulate matter (PM) contained in the exhaust gas. Using a natural cleaning process, most of the PM trapped in the exhaust filter is eliminated by the heat of the exhaust stream generated by normal use. In situations of low temperature, engine speed, or load factor, an active cleaning cycle is initiated. In this cleaning cycle, the exhaust gas temperature is raised by injecting additional fuel during the exhaust stroke of normal vehicle operation to the diesel oxidation catalyst (DOC).
After many hours of use, the exhaust filter may require an ash removal service.
DPF cleaning
Depending on the load that the tractor is under, as well as ambient temperature, humidity, and engine speed, the DPF may build up with particulate matter, thus requiring cleaning. Filter cleaning is determined by one of three factors:
A prescribed time-based estimation of needed filter cleaning
DOC/DPF pressure sensors
A particulate matter buildup estimation based on load conditions
Once one of the three conditions has been met, filter cleaning will occur.
There are three different types of filter cleaning processes:
Passive filter cleaning
Active filter cleaning
Parked filter cleaning
Passive filter cleaning
Passive filter cleaning occurs naturally when the engine is generating enough heat to oxidize particulate matter. This automatic process occurs continuously during normal operating conditions. No tractor icons or symbols appear on the display during passive filter cleaning.
Key John Deere advantage – John Deere’s Twin Touch foot controls offer several key advantages over competitive HST models tractors.
Some competitive hydrostatic tractors use a treadle pedal (toe-heel) design foot control for operation of the HST
Requires the operator to use both toe and heel to change direction, resulting in increased operator fatigue
The Twin Touch configuration also makes it easier to “inch” the tractor forward or rearward (i.e., when attaching to implements)
The 3E Series Tractors can be outfitted with an optional cruise control switch that is installed on the right-hand control console. This gives operators the ability to keep a constant speed when in transportation, field mowing, or other applications where extended use of the transmission is needed. This kit is very quick and easy to install for those who desire this feature.
Integrated hydrostatic pump and motor
Sauer-Danfoss® company provides the integrated pump and motor; this assures that the components are matched to each other, providing maximum efficiency
Reduces powertrain shock loads
Provides strength and durability needed for operating such attachments as loaders
One reservoir (with one check point and fill point) for the transmission, differential, and hydraulic system speeds up daily maintenance
Mechanically actuated by Twin Touch foot pedals allow selecting both directions of travel and speed with the touch of a toe
Foot-actuated differential lock is integrated into the brake pedal to simplify operator controls; the differential lock is included as base equipment to assist traction in tough spots.
Press the brake pedal down half way to engage the differential lock that locks the rear axle for improved traction in tough spots.
An uncluttered design gives operators of all sizes plenty of room to be comfortable. Color-coded controls are located on either side of the operator.
The hydrostatic transmission (HST) and brake pedals are designed and located for maximum comfort and ease of use.
Contoured, comfortable seat enhances operator comfort.
Seat position adjusts fore and aft.
Seat flips forward for protection from the elements.
Flat operator platform provides for easy entry to and exit from the tractor.
Folding Roll-Gard™ rollover protective structure (ROPS) and retractable seat belt increase operator safety.
Operator presence system:
If the operator leaves the seat when the tractor is in gear, the engine shuts down
If the operator leaves the seat when the power take-off (PTO) is engaged, the engine shuts down
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