2025 John Deere - Lawn 3038E

• Standard four-wheel drive (4WD) for maximum traction
• Hydro transmission with Twin Touch™ pedals for ease of use
• Category 1 3-pt hitch compatible with dozens of implements

Features May Include: 

• Powerful, diesel engine delivers plenty of power under heavy loads

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.
Active filter cleaning

If conditions (temperature, load, or speed) for passive filter cleaning cannot be achieved, then PM is removed using active filter cleaner.

To achieve the required conditions, exhaust temperature management (ETM) manages the initiation and duration of active filter cleaning. ETM can adjust numerous engine parameters and/or inject a small quantity of fuel into the exhaust stream for a short duration. The fuel turns to vapor and chemically reacts with the catalysts in the DOC to create heat to oxidize the PM.

It is important to note that at no time is the fuel in the DOC/DPF ignited, and there is no flame within the DOC/DPF.

Like passive filter cleaning, active filter cleaning requires no operator involvement, and there is no interruption to tractor operation.

Parked filter cleaning

In some instances where passive and active filter cleaning have not fully cleaned the PM from the system, a parked filter cleaning may need to take place. In general, the only time a parked filter cleaning will need to occur is when automatic filter cleaning has been disabled for an extended period of time and multiple warnings to engage filter cleaning were ignored or if the tractor has been used during light load conditions. Additionally, when the automatic filter cleaning process has been deliberately interrupted multiple times, or if active filter cleaning has failed numerous times due to a failed component, a parked filter cleaning may be requested. In these rare instances the operator will have to park the tractor and start the filter cleaning process.

The parked filter cleaning process needs to be activated based on usage and operation of the tractor. The process will take approximately 30 minutes.  See the operator's manual for more details.

This system constantly monitors the soot level of the tractor; making sure the tractor is always in peak performance condition.  This ensures high performance at all times.

Key features of the engine are:

• Economical cast-in-block cylinder design for good cooling and long life
• Direct fuel injection
  • Improves starting
  • Injects fuel directly on top of pistons for more efficient combustion
  • Develops more horsepower per liter (gallon) of fuel than indirect injection engines
• Aluminum alloy pistons are lightweight to reduce connecting rod bearing loads and provide good heat transfer characteristics
  • Design permits tighter tolerances and neutralizes expansion of the piston, which reduces blow-by and noise from piston slap
  • Top rings are higher on the piston and a thinner head gasket is used to greatly reduce the volume of unburned waste gases and increase combustion efficiency
• Timing gears and injector drive gears have a helical profile to reduce engine noise
• Auto-bleed fuel system
  • There is no need to prime the system if the tractor runs out of fuel
  • The system will self-prime the injection pump, lines, and injectors, providing fast fuel recovery for easier starting
• High-capacity lubrication system provides filtered oil, under pressure, to all engine bearings for long life 
• Key start and shutoff eliminate fuel shutoff knob
  • Electric solenoid shuts the fuel supply off immediately when key is turned off, which replaces the need to pull a fuel shutoff lever like many older tractors
• Fuel filter with replaceable element
• Water separator with additional replaceable filter element
• See-through coolant recovery tank permits operator to check coolant level without removing radiator cap

• Dry-type air cleaner with safety element
  • Dual element design for added engine protection
  • Easy to service
• Hood can be easily opened without tools for full access to the engine
• Easy access to engine check and fill points on the right-hand side of the tractor by removing the side panels.

• Easy-to-use hydrostatic transmission (HST) increases tractor performance

The 3E Tractors are available with a two-range hydrostatic transmission (HST) incorporated in a die-cast aluminum transmission case. Fluid under pressure transmits engine power to the drive wheels via a closed-loop pump and motor arrangement. Infinite ground speeds allow the operator to match the speed of the tractor to the job.

• No clutching for fast and easy direction changes
• Twin Touch™ foot pedals for quick and easy forward/reverse operation
• Transmission oil cooler cools transmission oil for longer transmission life

Safety features of the HST include:

• The tractor will only start with the range lever in neutral

• The engine will shut off if the operator leaves the seat unless the range lever is in neutral

• The engine will shut off if the operator leaves the seat and the power take-off (PTO) is engaged

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.

• Clean and simple operator station is comfortable and convenient

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

The thick, soft padding on this seat provides a smooth and comfortable ride.

• Seat flips forward for protection from the elements.
• Adjustable using the fore and aft lever located under the seat, the seat slides on ramped rails to provide comfortable access to all controls.

Easy-to-read instrument panel includes the following:

• Tachometer
• Low oil pressure indicator light
• Battery discharge indicator light
• PTO engagement indicator light
• Signal/hazard lamp indicator lights
• Multifunction liquid crystal display (LCD) display (hours, filter cleaning information, etc.)
• Filter cleaning status indicator light

All 3E Series Tractors come standard with a fuel gauge that is easy to read from the operator's station to ensure operators do not run out of fuel.

Safety

Operator presence switch (OPS) in seat:

• OPS requires the operator to be in the seat to operate the transmission or PTO.

• ROPS is designed to meet or exceed American Society of Agricultural and Biological Engineers (ASABE) safety standards.

• Reflective ROPS strips for better tractor visibility.

• Seat belts are in base equipment on all John Deere compact utility tractors.

• Key switch interlock prevents bypass starting.

• Visual PTO warning light on the instrument panel alerts the operator when the PTO is running.

• Turn signal and flashing warning lights operate according to ASABE standards.

• Slow-moving vehicle (SMV) sign is provided for road transport.

3E Series Tractors are equipped with Roll-Gard ROPS. These folding ROPS meet the ASABE standards for compact utility tractors.

• With the Roll-Gard ROPS folded down, producers can easily to get their tractor into a garage with a standard 2.1-m (7-ft) garage  door.

• Optional two-spool rear selective control valve (SCV) for superior implement performance

3E Series Tractors can be equipped with a field-installed rear hydraulic remote kit, providing two additional hydraulic spools on the back of the tractor. This kit can be field installed on a tractor with a loader or without a loader.

The functions are completely separate from the loader. These rear remotes can be hooked up to a wide variety of implements and attachments such as follows:

• Hydraulically angled blade
• Hydraulically controlled chute/spout on a 3-point hitch-mounted snow blower
• Hydraulic scarifiers on a box blade
• Many other hydraulic rear attachments

This versatile kit gives 3E Series Tractor operators the options they desire for putting their tractors into a wide range of tasks.

The first spool is equipped with a float position, giving the operator the ability to contour the landscape and improve the final grade with certain implements.

• Optional iMatch™ Quick-Hitch feature allows for easy implement hookup

One of the greatest operator concerns involves difficulty in attaching tractor implements. John Deere has addressed this issue with the iMatch Quick-Hitch.

The iMatch Quick-Hitch provides easy hookup and a guaranteed fit for all Category 1 implements that are designed to meet the American Society of Agricultural and Biological Engineers (ASABE) Category 1 Standard S278.6 for quick-attach hitches.

• All implements require a set of bushings in order for the attachment to fit and work properly with the iMatch Quick-Hitch. One set of bushings comes with the iMatch Quick-Hitch.
• Upper bushing
  • Inside diameter: 1.93-1.95 cm (0.76-0.77 in.)
  • Outside diameter: 3.15-3.18 cm (1.24-1.25 in.)
• Lower bushings
  • Inside diameter: 2.24-2.26 cm (0.88 to 0.89 in.)
  • Outside diameter: 3.63-3.66 cm (1.43 to 1.44 in.)