i-HMT Transmission
Yanmar i-HMT transmission
The i-HMT transmission (integrated Hydro-Mechanical Transmission) introduces a new standard of operation for enhanced performance. You no longer have to choose between efficient, constant speed and flexible operation. With the i-HMT transmission, you get both.
No other compact tractor can boast the integrated Hydro Mechanical Transmission technology of the Yanmar YT347 and YT359.
Efficient conversion of engine power into usable PTO or drawbar power
Ability to choose the optimum speed for each task and application.
Reduced fuel consumption from greater efficiency
Step-less and clutch-less speed shifting
Stop tractor without clutch
Highly efficient variable transmission i-HMT
I-HMT achieves smooth and step-less gear shifting from zero to maximum speed.
Optimum speeds that were not previously available with existing equipment are now selectable at will to match specific duties and applications
i-HMT variable: AB Mode
Control your engine speed and ground speed with AB Mode. AB Mode allows you to preset your maximum speed when the i-HMT pedal is fully engaged.
AB mode in operation
Optimum speed can be selected by variable transmission depending on type of work. Two engine speeds can be preset in advance, allowing the operator to switch between the two to match the application and ground conditions.
Example: soil cultivation and turning into next row
Setting of A mode for cultivation, B mode for turning speed. By using the AB mode function, the operator does not need to adjust speed setting manually so is able to make more controlled turns into the next row. This makes turning safer and more convenient.
Auto Throttle
Engine and travel speed can be controlled with the accelerator/drive pedal. The operator can achieve top speed by pressing the main shift pedal. The main shift pedal automatically synchronizes to engine speed when the range shift lever is in 3rd position
Brake stop without clutching
The tractor can be stopped by pressing the brake pedal without the need to operate the clutch. Decrease ground speed when the engine is overloaded and keep operation speed constantly.
Anti-stall & Cruise control
Decrease ground speed when engine is overloaded and keep operation speed constantly.
I-HMT motion control dial
Operator can set response of I-HMT drive pedal, reverser lever or clutch pedal operation. When you set a dial to highest position, response of I-HMT is four times quicker than lowest position.