Features
EnergySmart Efficiency
We designed this machine to be powerful, yet energy efficient. System designs improve horsepower efficiency through: Hydraulics: (12hp savings) Cooling: (7hp savings) Cutting: (10hp savings).
Heavy Duty Spindle
Ductile cast iron spindle housing is large in diameter [9 in. (229 mm) at the base] to dissipate impact loads. Dual tapered roller bearings last up to six times longer than ball bearings.
All Season Safety Cab
The optional, factory installed, permanent safety cab protects the operator with a four-post rollover protection structure (ROPS), tempered safety glass, and climate controlled environment including both air conditioning and heater.
Reduced Operator Vibration
4-way adjustable seat and air-ride suspension isolate the operator platform to reduce noise and vibration.
0" Uncut Circle
The ability to mow a 0" (0 cm) uncut circle - without wheel brakes - allows you to easily mow striping patterns without leaving any grass uncut.
Mows 20.8 Acres/Hour
One Groundsmaster 5900 has the equivalent production of two 11 ft (3.4m) mowers or four 6 ft (1.8m) out front rotaries.
Onboard InfoCenter™
The onboard InfoCenter™ gives the operator a quick read on all systems and even provides assistance at the right moment.
Powerful Tier 4 Engine
3.3L (202cu. in.) Yanmar Tier 4 Final Compliant turbo-diesel engine, 72 HP (53.7kW) @2500 rpm, 206 lb. ft. (279 Nm) torque @1625 rpm, B20 diesel compatible.
Flexible Cutting Width
With the ability to mow widths ranging from 57" (145 cm) to 192" (487 cm) the Groundsmaster 5900 has the flexibility necessary for nearly any mowing need.
Smart Power™
Automatically adjusts the mower’s ground speed for the cutting conditions to maintain optimal power to the blades, taking the guesswork out of a consistent cut.
HybridDrive™ Cutting Deck System
Belts transfer power more efficiently than hydraulic motors while adding a layer of protection against hydraulic failures. Large diameter spindle housing dissipates impact loads, and dual tapered roller bearings last up to six times longer than ball bearings.
SmartCool™
The SmartCool™ system prevents over-heating with auto-reversing cooling fans.
All Time Traction Assist
CrossTrax® all-wheel drive system offers increased cross wheel traction control.
Specifications
| Armrests | Standard |
| Battery | 12V |
| Blade Style/Type | Rotary |
| Blade Type (Description) | 20" (50.8 cm) heat-treated steel blades |
| Cab Unit | Yes |
| Cab Unit Description | ROPS certified cab with heat & AC; Includes: climate system pressurized cab, windshield wiper & washer, folding exterior side mirrors, molded front fenders, right, left & rear window have tinted (50%) glass, quick release window latches, rubber sound isol, ROPS certified cab with heat & AC; Includes: climate system pressurized cab, windshield wiper & washer, folding exterior side mirrors, molded front fenders, right, left & rear window have tinted (50%) glass, quick release window latches, rubber sound isolator cab mounts, interior dome light. |
| Controls | Control arm, right armrest, travels with seat and suspension. Deck lift/lower, electrohydraulic switches. Throttle; electronic, variable. Traction pedal, electronic. Park brakes: double-motion switch. Steering; hydrostatic load sensing. |
| Cooling System Description | 24V dual electric fan banks for separate engine radiator and hydraulic oil cooling; fan banks are variable speed and have auto-reverse, radiator is cross flow, 3 rows, 9 FPI. Hydraulic oil cooler is crossflow, 6 FPI. |
| Cup Holder | Standard |
| Cutting Unit Accessories | Atomic™ Mulching Blades, Flat Blades |
| Cutting Unit Type/Configuration | Three rear discharge rotary decks. All three decks: 192" (488 cm), One wing: 57" (145 cm), center deck: 92" (234 cm), center deck + one wing: 144" (366 cm) |
| Deck Construction | 11-gauge high-strength steel. 7-gauge, reinforcements, bullnose bumpers. |
| Deck Wing Protection | 2-way shock absorption on wing decks |
| Drivetrain | Diesel |
| Electrical System | Main: 12 volt system; Alternator: 12V, 80 amp, supplied w/ engine Battery: 1380 CCA (2x 690 CCA), Cooling Fans, Engine/Hydraulic cooling: 24 volt system; Alternator: 24V, 105 amp w/ remote sense; Battery: 350 CCA. |
| Engine Cooling | Liquid Cooled |
| Fuel / Power Source | Diesel / Biodiesel |
| Fuel Capacity | 35 U.S. gal. (132.5 L) |
| Gauges/Instrumentation | InfoCenter™: Shows gauges, service reminders, advisories/faults and troubleshooting assistance. Shows fuel level, coolant temp, hydraulic oil temp, engine glow plug, low oil pressure, air cleaner restriction, 12V & 24V alternator output, engine hours, rpm, InfoCenter™: Shows gauges, service reminders, advisories/faults and troubleshooting assistance. Shows fuel level, coolant temp, hydraulic oil temp, engine glow plug, low oil pressure, air cleaner restriction, 12V & 24V alternator output, engine hours, rpm and DPF regeneration. |
| Ground Clearance | 10.3" (26.1 cm) |
| Ground Speed - Forward | 0 - 20 mph (0 - 32.2 km/h) |
| Ground Speed - Reverse | 0 - 10.5 mph (0 - 16.9 km/h) |
| Height | 95" (241 cm) |
| Height of Cut Range | 1" - 6" (2.5 cm - 15 cm) in 0.5" (1.3 cm) increments |
| Hydraulic Fluid Capacity | 19 U.S. gal. (71.9 L) |
| Hydraulic Fluid Type | Toro PX™ Extended Life Hydraulic Fluid |
| Implement Drive | HybridDrive™ - Hydraulic motor to spindle, remaining spindle(s), driven by "B" section v-belts with automatic, spring loaded idlers |
| Lighting | Standard |
| Main Frame/Chassis | All welded formed-steel frame with integral tie-down anchors |
| Max Slope Angle | Refer to operator's manual |
| Mowing Rate (Productivity) | Up to 20.9 acres/hr (8.5 hectacres/hr) |
| Mowing Speed | 0 - 10.8 mph (0 - 17.4 km/h) |
| Number of Blades | 11 |
| Oil Capacity | 11 U.S. qt. (10.4 L) |
| Oil Cooler Description | Crossflow, hydraulic oil cooler @ 6 FPI |
| Operator Area | Storage box, cup holder, 12-volt power outlet, double USB port |
| Optional Accessories | Red Sunshade, White Sunshade, Rotating Beacon Kit, Work Light Kit, Additional Turn Signals, Horn, Backup Alarm, Auxiliary Braking System |
| Overall Width | 199" (505 cm) |
| Parking/Service Brakes | Parking: Electrohydraulic controlled via double-motion rocker switch. Service: Dynamic, hydrostatic 4WD in low range. Front wheel drive braking in high range. |
| Power Steering | Yes |
| Power Train (Engine Description) | 3.3 L Yanmar® EPA Tier 4 Final and EU Stage IV emissions compliant turbo-diesel engine. 72 HP (53.7 kW) @ 2500 rpm, Torque: 206 ft.-lbs. (279 Nm) @ 1625 rpm Displacement: 202 cu. in. (3.3 L). |
| Product Length | 174" (442 cm) |
| Safety/Operator Safety | LED headlights, brake lights, tail lights, amber turn signals and flashers |
| Seat | 4 -way adjustable seat with cloth cushions. Air ride suspension with 3" (7.6 cm) of adjustability. |
| Spindle Assembly | Shaft: 1.25" (3.2 cm) hardened steel. Housing: 9" (22.9 cm) ductile iron. Bearings: Greaseable tapered roller. |
| Starting | Key Start |
| Steering System Description | Power steering with dedicated power source. Steering wheel tilts to desired operator position. |
| Tires - Front | 29" x 12" - 15", 6-ply |
| Tires - Rear | 23" x 10.5" - 12", 6-ply |
| Tool Box | Standard |
| Traction Drive | Full time automatic forward and reverse 4WD in low (mow) range. Front drive: 2-speed, fixed displacement high torque, low speed radial piston motors. Rear drive: single speed, fixed displacement, high torque, low speed radial piston motors. |
| Traction Drive (System) | 4WD |
| Transport Width | 99" (251 cm) |
| Turning Circle (Diameter) | Uncut circle - 0" diameter. Turning radius - 86" (218 cm) |
| Weight | 7,304 lbs. (3313 kg) with full fluids. |
| Wheelbase | 77" (196 cm) |
| Width of Cut | 192" (488 cm) |
