Toro’s upgraded Groundsmaster 5900/5910 rotary mower integrates a fuel-efficient, Tier 4 Final-compliant Yanmar 3.3L turbocharged diesel engine and offers a number of features to boost productivity, maneuverability, and safety.

The Groundsmaster 5900/5910 delivers improved horsepower efficiency through a number of innovations. Updates to the hydraulic systems, electric cooling system, and deeper cutting decks all contribute to a reduction in overall power usage in thick or tall cutting conditions. Because of these improvements, Tier 4 Final models have demonstrated fuel savings of up to 30% when compared to the previous Groundsmaster 5900/5910 models, the company reported.

Smart Systems Bolster Uptime

Toro has increased uptime productivity by incorporating both the Smart­Power and SmartCool systems.

“The SmartPower system essentially allows operators of all skill levels to increase their productivity,” explained Kevin Conry, senior marketing manager for The Toro Company. “With the integration of the SmartPower system, the mower automatically keeps the blade speed at optimum cutting performance, regardless of conditions. When the operator experiences heavy, wet, or challenging conditions, the mower automatically slows down the traction unit ground speed and diverts excess power to the blades to handle even the most difficult terrain.”

The SmartCool system is a variable-speed, temperature-actuated reversing fan. It blows chaff and debris off the intake screen to reduce the possibility of overheating. This feature saves time, as it eliminates the need for an operator to stop mowing, exit the machine, and clean the back of the hood.

“These two new features complement one another and are both integrated into the new Toro Groundsmaster 5900/5910 for the sole purpose of increasing productivity through uptime improvement and automatic power management,” Conry said.

Since the SmartPower system delivers the proper amount of power at the right time, the system eliminates the guesswork for less experienced operators. Additionally, the SmartCool system cuts downtime and can keep the operator mowing for longer periods of time.

Greater Maneuverability & Capacity

For city park use, large-area mowers need exceptional maneuverability, mowing capacity, and trimming capabilities — and the Groundsmaster 5900/5910 delivers all three, according to Toro.

“The maneuverability of the Groundsmaster 5900/5910 large-area mower is outstanding,” Conry said. “Designed and engineered with a number of applications in mind, the 5900/5910 can mow closely around trees and other obstacles, while at the same time being able to turn 180 degrees and leaving no uncut grass.”

The mower boasts a 16-foot-wide cutting width, enabling an operator to mow more than 100 acres per day. Trimming capability is another strength, with the 5900/5910 featuring both retractable left- and right-wing decks to allow mowing between objects or on narrow swaths.

“The Groundsmaster 5900/5910 allows the operator to mow with one, two, or three decks, increasing overall versatility by providing the operator with the ability to mow in both tight and large areas with a single mower,” Conry said.

Key safety features include all-time traction assist, in-service braking, bull-nose bumpers and bumper skids, and an isolation-­mounted operator platform. There’s also an optional factory-installed permanent safety cab featuring a four-post rollover protection system.