3R Premium Compact Utility Tractors
Everything the E has plus: 3-Range Twin Touch™ hydrostatic controls or PowrReverser™ 12F/12R, Optional Cab with heat/AC. Optional AutoConnect™ Mid Mount Mower Deck.
Attractive styling provides improved visibility and serviceability
The bold styling of the tractor provides an attractive and functional appearance similar to that of the larger agricultural tractors. Benefits of this styling include:
- Easy tractor family identification
- Updated fixed grill and side panel hood design allowing for optimum sealing of the cooling compartment
- Integrated maintenance position on front grill for easy battery access
- Wraparound-style halogen headlights
- Premium integrated automotive style headlight bezels
- Bold graphics allowing for easy tractor family identification
- Aggressively sloped hood design giving a softer, smoother look, and providing improved visibility
The result gives the tractor a distinctive appearance and feel.
NOTE: If tractor is equipped with optional field-installed vertical exhaust, exhaust pipe must be removed before opening and closing the hood of the tractor.
Powerful Yanmar® diesel engine delivers plenty of power under heavy loads
The Yanmar 3-cylinder, TNV series diesel engine features a high torque reserve that provides plenty of power under heavy loads.
This engine features lower levels of exhaust emissions and reduced noise levels. The engine meets all current Environmental Protection Agency (EPA) emission requirements for Final Tier 4 emission standards.
The 1.642-L (100.2-cu in.) displacement, naturally aspirated, 3TNV88C-MJTV Yanmar diesel engine provides 23.7 kW (31.8 hp) to the 3033R Tractor.
The 1.568-L (95.7-cu in.), turbocharged, 3TNV86CT-MJTV Yanmar diesel engine provides 28.5 kW (38.2 hp) to the 3039R Tractor.
The 1.568-L (95.7-cu in.), turbocharged, intercooled 3TNV86CHT-MJTV Yanmar diesel engine provides 33.3 kW (44.7 hp) to the 3046R Tractor.
The engine uses latest technologies to optimize fuel economy, improve control and accuracy, and reduces environmental impact.
The common rail system (CRS) optimizes fuel economy and reduces operating costs compared 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 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 new 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.
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 conditions:
- 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.
NOTE: Passive filter cleaning requires no operator involvement, and there is no interruption to tractor operation.
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 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. Most likely, 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 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.
NOTE: Number of hours since last regeneration and soot level percentage viewable on LCD display.
NOTE: When the tractor is in a filter cleaning process at low speed or while parked and running, the exhaust will be routed through the vertical exhaust outlet. In all other cases, the exhaust will be routed through the downward exhaust outlet. This ensures minimal heat impact to operator.
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 gallon of fuel than indirect injection engines
- Aluminum alloy pistons with built-in steel struts 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
- Key start and shutoff eliminates fuel shutoff knob
- Electric solenoid shuts fuel supply off immediately when key is turned off
- Fuel filter with replaceable element
- Water separator
- See-through coolant recovery tank permits operator to check coolant level without removing radiator cap
- Sealed radiator compartment keeps trash and debris on outside of hood
- Dry-type air cleaner with safety element and electronic air service indicator
- Electronic air restriction indicator alerts operator when air filter servicing is required
- Dual element design for added engine protection
- Easy to service
- Standard side exhaust
- Upward exhaust standard on turbo-charged Snow Cabs
- Optinal vertical exhaust kit
Yanmar is a trademark of Yanmar Company Limited.
Maximize productivity with an eHydro™ transmission
The 3R Series Tractor is available with an exclusive three-range electronic hydrostatic (eHydro) transmission.
- Fluid under pressure transmits engine power to the drive wheels through a pump and motor
- Provides high torque for start-up
- Reduces powertrain shock loads
Sauer-Danfoss® supplies both the pump and motor. This ensures that the components are matched to each other, providing maximum efficiency.
The electronic hydrostatic transmission is ideally suited for jobs where productivity is a must, such as loader or mower applications.
Twin Touch™ foot controls allow selecting both direction of travel and speed with a touch of the toe.
Key features of the eHydro transmission are:
- Infinite ground speeds, even at full throttle, 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
- Cruise control is base equipment
- Cruise-control switch is located on the right-hand console for easy access
- Cruise control is electronically engaged and disengaged and allows for more precise setting of speed
Sauer-Danfoss eHydro transmission is used for reliable operation. Durability features include:
1) Large forged trunnion shaft with larger support bearings to reduce vibration and noise.
2) Center section made from durable cast aluminum, which is 10 percent stronger.
3) Transmission oil cooler cools transmission oil for longer transmission life.
Safety features of the eHydro transmission include:
- The tractor starts with one or both foot pedals depressed, but it does not move until both pedals first come to neutral.
- The tractor comes to a stop if the operator leaves the seat, but the engine does not shut off unless the power take-off (PTO) is also running.
KEY JOHN DEERE ADVANTAGE
John Deere's Twin Touch foot controls offer several key advantages over competitive hydrostatic transmission (HST) tractor models.
Key advantages over competitive HST tractor models:
- Some competitive hydrostatic tractors use a treadle pedal (toe-heel) design foot control for operation
- Requires the operator to use both toe and heel to change direction, resulting in increased operator fatigue.
Integrated eHydro features
The eHydro convenience controls have been integrated into a single module. Combining features such as SpeedMatch™ cruise control, LoadMatch™ switch, MotionMatch, eThrottle, and automotive style cruise control pulls the maximum efficiency out of the eHydro transmission tractors. All these features are standard on the 3R models and deliver an easier and more comfortable user experience.
eHydro convenience control module
The 3R Series Tractors come equipped with the eThrottle function. This feature is designed make the tractor quieter and use less fuel. With the simple push of a button, the engine speed is linked to the pedal position. The operator can keep the throttle essentially all the way in the low position. The engine rpms, as well as the tractor speed, increase together with the pedal position. This provides the operator with comfort and convenience as well as fuel economy.
AUTOMOTIVE-STYLE CRUISE CONTROL
Cruise control indicator
An automotive-style cruise control is standard equipment on the 3R Series Tractors. Cruise control is electronically engaged and disengaged and is located on the right-hand operator console.
- Maintains desired forward speed without pressure on the foot pedal
- When activated, operator can set cruise speed
- Use the SET/- button to set cruise speed, or to decrease cruise/max speed
- Use the RES/+ button to set cruise speed, or to increase cruise/max speed
- A speed sensor also allows the tractor to maintain preset speed driving up and down hills
- To disengage the cruise control, either:
- Apply pressure to the brakes
- Disengage cruise control button
- Briefly depress the reverse travel pedal
LOADMATCH POWER MANAGEMENT SYSTEM
LoadMatch is an industry exclusive and a standard feature on the 3R Series Tractors.
If torque requirements increase significantly, the transmission will reduce the tractor's drive speed to compensate for the increased load on the transmission, maximizing torque to drive wheels and minimize stalls.
Controls automatically adjust LoadMatch compensation depending on the tractor’s application. PTO applications require less engine speed fluctuation, therefore adjusts the amount of droop depending on PTO speed. This adjustment increases efficiency and optimizes engine speed and torque output based on tractor application.
While typically left on, LoadMatch can be turned off with the right-hand console controls.
MotionMatch, standard on the 3R Series Tractors, is located on the right-hand console. It offers seven settings for adjusting the rollout or decelerate when the pedal is released.
Longer accelerate and decelerate distances.
Shorter accelerate and decelerate distances.
SpeedMatch, standard on the 3R Series Tractors, further enhances the eHydro cruise control functions by allowing the operator to preset maximum speed. Once this feature is engaged, the operator must stroke the travel pedal fully to meet the operator preset speed. This function improves accuracy and safety, particularly at lower travel speed applications.
Rotary tilling or spraying applications are examples of where SpeedMatch can be applied. SpeedMatch will work in both the forward and reverse set speeds.
NOTE: Automotive-style cruise control and SpeedMatch can be used in conjunction with LoadMatch to maximize productivity.
Sauer-Danfoss is a trademark of Sauer-Danfoss, Inc.
PowrReverser™ transmission allows for clutchless direction changes
The PowrReverser transmission, available on 3033R and 3039R Tractors, offers a hydraulically shifted forward-to-reverse transmission. This allows for clutchless shuttle shifting between forward and reverse with one lever for quick and easy direction change.
- The PowrReverser transmission does not require the operator to use the clutch to shift between forward and reverse.
The 12x12 PowrReverser transmission's hydraulically actuated wet clutch takes the place of the dry-type traction clutch. Two multi-disk clutch packs (one forward and one reverse) are hydraulically actuated when the directional (reverser) lever is placed in either the forward or reverse position.
Each clutch pack consists of three large, 13-cm (5-in.) diameter clutch disks that are oil-cooled, allowing excellent heat dissipation and extended clutch life.
- Clutch A is used for the forward operation of the tractor
- Clutch B is used for the reverse operation of the tractor
Key features of the PowrReverser transmission are:
- 12 forward and 12 reverse speeds
- Reverser lever, located on the left side on the instrument console, allows operator to make direction changes without clutching
- Fast shuttle shift for improved loader operation
- Dual-cone synchronizers allow for synchronized shifts between gears for on-the-go shifting with use of the clutch
- Helical-cut gears for quiet operation
- Well-spaced speeds for turf, loader, and transport work
- Neutral-start switch prevents tractor from starting when transmission (main range) is not in neutral
- Dual wet-disk clutches provide long clutch life
- Shifts between ranges are not synchronized
NOTE: 3R Tractors with PowrReverser are not compatible with mid PTO. They are not compatible from the factory or field installed.