Hydro Dual Speed (H-DS)

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 for each, 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.

Mode1 : 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.

Mode2 : 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.

Mode3 : 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 maximize 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 you working.

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.

Auto Throttle Advance

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, synchronizing tractor speed and engine revolution. This greatly simplifies tractor operation and helps 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.