TRANSMISSION

We've enhanced the power, performance, and durability of our Hydrostatic Transmission, and we've given it a name: HST Plus. Now you can choose the HST Plus or FST* (Fully Synchronised Main and Shuttle Transmission) for the system that's best suited to meet your needs.
*L3240 only

HST Plus (Hydrostatic Transmission)

Tackle any task with ease and efficiency. With startling precision, the new HST Plus's automated control of both the HST pump and motor gives you optimal performance, regardless of the task, working conditions, or operator expertise. This new technology incorporates the popular light and smooth pedal feel of Kubota's traditional HST to provide the Grand L40 with a more comfortable, easier-to-operate, and higher-performance HST than ever before.
Hydraulic Servo System
Kubota's new HST Plus includes a hydraulic servo mechanism that decreases the amount of pressure required to depress the HST pedal. A popular and proven feature on previous Kubota models, this mechanism creates a more responsive pedal, which in turn delivers smoother handling and more control, whatever the load size. In addition, the system helps to reduce vibration, shock, noise and fatigue to provide a gentler ride and improved performance.

HST PLUS

Kubota 's advanced technology has made operating a tractor as simple as driving a car. Kubota's new HST Plus offers professional and novice users maximum HST performance by giving optimal control of both the hydraulic pump and the drive motor - all with simple operation. Thanks to new functions that regulate the pump swash plate and can adjust the motor swash plate between two stages, you can get the most out of the HST Plus, whether you prefer manual or automatic control.

Hydro Dual Speed H-DS - HST Hi-Lo Function

Kubota's HST Plus gives you more control. ALready featuring three range shift speeds, it now includes a lever to shift between high and low speeds in each range, expanding your options to six total speeds. Once your preferred range shift speed is set, you can easily shift the H-DS between the high and low speeds while moving, And with a simple touch of the Mode Selection button, you can activate the Auto H-DS for automatic Hi-Lo Shifting. Whether you're doing loader work or driving up a slope, you'll appreciate this newfound versatility and efficiency.

Load Sensing

The Grand L40 boasts a revolutionary Load Sensing feature that, if it detects a drop in engine RPM, will automatically regulate HST pump and motor activity. This feature makes operating the Grand L40 easy for almost anyone. Simply press the Mode Selection button, choose your preferred mode, and feel the difference.

HST Response Control

Kubota knows that different challenges require different responses. Now the HST response speed can be adjusted with a simple turn of a dial. If your task requires a quick response, you can turn the dial to the FAST setting. This setting is ideal for use during loader-related chores If the job at hand needs a more gradual response, as used for turf work, set the dial to SLOW. When your preferred response speed has been selected, you won't need to make any more adjustments with the foot pedal. It's that easy.

Thanks to the new Auto Throttle Advance feature, driving the Grand L40 is as simple as driving an automatic-transmission car. This function links the HST pedal and the engine throttle, synchronising tractor speed and engine revolution. This greatly simplifies tractor operation and help reduce fuel consumption. Now all you need to do to control
tractor speed and engine revolutions is depress the HST pedal. This feature is especially handy when moving between locations or when towing a trailer.

Mode Selection Button.

*when the engine is started, the tractor will remain in the same mode it was in during the previous engine shutoff.

• MODE 1 MANUAL MODE
  This mode offers manual control of all transmission functions. It's perfect for those experienced operators who enjoy complete control of the tractor
• MODE 2 STALL GUARD
  Thanks to the Grand L40 Stall Guard's load-sensing technology, you don't have to worry about engine stall. By pressing the Mode Selection button, Kubota's new Stall Guard function automatically regulates the burden on the engine and prevents it from stalling, without any need for sensitive pedal operations.
• MODE 3 AUTO H-DS WITH STALL GUARD
  Ideal for tasks involving major changes in engine burden, this mode activates both the Stall Guard and the Auto H-DS (Auto Hydro Dual Speed) to maintain the ease of operation, letting you work more effectively. The Auto H-DS enables automatic Hi-Lo shifting, and combined with the Stall Guard, maintains the torque and allows the tractor to continue bearing heavy loads, drive on slopes and keep working.