Kubota: Third generation M7 tractors introduced

Kubota’s third-generation M7 tractors now meet Stage V EU emissions regulations.

Kubota has introduced the M7003 tractor series to the UK market. Now in its third generation, the latest M7 models meet EU Stage V emission regulations, and combine further refinements with enhanced functionality, and greater operator convenience.

“New features across the range include Xpress restart, Multispeed steering, an advanced LED lighting package and Tractor Implement Management (TIM),” Kubota’s agricultural product manager, Luke Sellwood, said. “The M7003 buyer also has access to a greater range of optional extras.”

The M7003 series offers three models – M7133, M7153 and M7173. Power outputs from the four-cylinder engine remain unchanged at 130hp, 150hp and 170hp respectively, with a 20hp boost on the two lower-powered models, and a 5hp boost for the flagship M7173.

Revised engine characteristics deliver a constant power band from 1,800 to 2,100rpm, while a constant torque level extends from 1,200 to 1,600rpm. Full power is delivered at 1,900rpm, while maximum torque arrives at 1,500rpm.

EU Stage V emissions compliance is achieved using a combination of advanced diesel particulate filter (DPF) and selective catalytic reduction (SCR), allowing low-pressure exhaust gas recirculation (EGR) to be eliminated. The DPF cleaning interval has been doubled from 3,000 to 6,000 hours, contributing to lower operating costs.

The flagship Kubota M7173 offfers 175hp.

Transmission options continue to include the stepless KVT and a powershift gearbox that uses six powershift speeds in five synchronised ranges. The powershift transmission now benefits from additional functionality, with the development of Xpress restart. Activated by a switch, Xpress restart provides a brake-to-stop function, which avoids the need to depress the clutch pedal to stop the tractor. This feature suits repetitive start-stop tasks such as round baling and loader work.

All models are now equipped with Multispeed steering control. This new development allows the operator to select the steering ratio to suit working speed and application, offering greater comfort and convenience with headland turns, for example.

“The standard steering ratio is four turns lock-to-lock,” Mr Sellwood said. “With Multispeed, the operator can choose from a 20 per cent, 40 per cent or 60 per cent reduction in the number of turns required.”

At its quickest setting, Multispeed allows full-lock to be reached with just 1.5 turns when travelling forward, and 2.4 turns when travelling backwards. For safety, the system automatically disengages at a forward speed of 18km/hr (12km/hr in reverse), and re-engages as speed drops below this threshold the travel speed slows. The system is completely disabled when forward speed reaches 25km/hr (20km/hr in reverse) and can only be re-engaged when the tractor slows and the Multispeed selector switch is repositioned.

The M7 range’s rear-lift capacity is 9,400kg.

M7003 tractors also get a swap-valve function, allowing re-assignment of spool valves to suit operator preferences for fingertip or joystick control. Up to six spools can be fitted, and the maximum hydraulic system flow rate is 110 lit/min with a load-sensing, variable displacement pump for M7153 and M7173 models. The M7133 uses an 80 lit/min fixed displacment pump.

Rear lift capacity is 9,400kg, and PTO choices include 540/540E and 1000/1000E. Up front, the tractor’s linkage offers a 3,500kg lift capacity, with the option of a 1,000rpm front PTO.

Improved lighting is also available for M7003 tractors, offering three different levels of configuration. Buyers can choose 10 halogen worklights, or 10 LED worklights, or an enhanced package with 14 LED worklights. In addition, tractor options now include automatic climate control, and electrically adjustable and heated mirrors.

Advances in precision farming technology include the integration of TIM. Now with AEF certification on M7003 models, TIM is a bi-directional communication between tractor and implement through ISObus that allows the implement to control tractor functionality on-demand, for example when round baling.

“TIM has the ability to optimise efficiency with AEF certified TIM-compatible implements, such as Kubota’s BV5 round balers,” Mr Sellwood said. “By taking over repetitive baling tasks, TIM can slow and stop the tractor, unload the bale and restart baling, to deliver bales with near-identical densities.”

Kubota’s M7003 series is priced from £92,000 for the powershift equipped M7133 (price correct at October 2020).

For more information visit: www.kubota-eu.com.