DrainPondDesign & RFB,
This may be more info than you really wanted, but I hope it helps! Deere is the only manufacturer of CUTs that has an "electronic" Hydro - everyone else's is linkage controlled. Not to beat a dead horse, but I really think you will prefer Deere's Factory Cab (from what I have been told, Kubota's cabs are made for them by the Curtis Cab Company and installed on a standard Open Station tractor) as well as the eHydro transmission with the TwinTouch pedals...
eHydro™ transmission
The 3x20 Series tractors are available with an exclusive 3-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 assures 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
1) No clutching for fast and easy direction changes
2) Twin Touch foot pedals for quick and easy forward/reverse operation
3) Cruise control is standard equipment
4) Cruise control switch is located on the right-hand console for easy access
5) Cruise control is electronically engaged and disengaged and allows for more precise setting of speed.
Sauer-Danfoss eHydro transmission:
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% stronger.
3) Transmission oil cooler cools transmission oil for longer transmission life.
Key John Deere advantages:
Twin Touch foot controls:
John Deere's Twin TouchTM foot controls offer several key advantages over competitive HST models tractors. These are:
- 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
- Certain competitive hydrostatic tractors locate their individual turning brakes on the same side as their treadle pedal
* This configuration makes it virtually impossible to operate both the turning brakes and HST pedal at the same time on competitive models
* This configuration also makes it difficult to ''inch'' tractor forward or rearward (i.e. when attaching to implements)
Standard cruise control:
A ''true-speed'' cruise control allows the operator to maintain a consistent speed over uneven terrain. It is standard equipment on 3120-3720 Tractors with eHydro transmission. Cruise control is electronically engaged and disengaged and is located on the operator console to the right of the operator.
- Maintains desired forward speed without pressure on the foot pedal
- Cruise control is set by engaging the switch when the desired speed is reached
- A speed sensor also allows the tractor to maintain preset speed driving up and down hills
To disengage the cruise control:
1) Apply pressure to the turn brakes opposite the eHydro pedals, or
2) Disengage cruise control switch, or
3) Briefly depress the reverse control pedal
Safety features of the eHydro transmission include:
1) The tractor will start with one or both foot pedals depressed, but it will not move until both pedals first come to neutral
2)The tractor will come to a stop if the operator leaves the seat but the engine will not shut off unless the PTO is also running
LoadMatch™ power management system:
LoadMatch is a standard feature of the eHydro transmission.
- The LoadMatch switch is located on the left side of the steering column.
- Activating this switch will automatically match the output of the transmission to the load on the tractor.
- If torque requirements increase significantly, the electronic hydrostatic transmission will reduce the tractor's drive speed to compensate for the increased load on the transmission, maximizing torque to drive wheels and minimizing stalls.
Standard MotionMatch™:
- The new enhanced MotionMatch is now adjustable and a standard feature of the eHydro transmission. It gives the operator the ability to select rate of deceleration. It is integrated into the instrument panel with 8 total settings available.
- For operators desiring frequent changes between short and long rollout, the MotionMatch switch, which is included in the automotive-style cruise upgrade, can be installed.
- Allows operator to instantly change from short to long rollout and vice versa
- Can be set to provide smoother, softer response for mowing or a sharper, more aggressive response for loader work
Last Updated : 12-Oct-2006