Groundsmaster® 5900

  • Model: 31698
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  • One Groundsmaster 5900 matches the production of two 11 ft (3.4 m) mowers or four 6 ft (1.8 m) out front rotaries
  • We designed this machine to be powerful, yet energy efficient
  • The large-diameter ductile cast iron spindle housing (9 in. / 229 mm) dissipates impact loads, while dual tapered roller bearings last up to six times longer than ball bearings
  • 4-way adjustable seat and air-ride suspension isolate the operator platform, reducing noise and vibration
  • The ability to mow a 0" (0 cm) uncut circle—without wheel brakes—enables easy striping without leaving grass uncut
  • The onboard InfoCenter™ provides the operator with a quick overview of all systems and timely assistance
  • 3.3L (202 cu. in.) Yanmar Tier 4 Final compliant turbo-diesel engine, delivering 72 HP (53.7 kW) at 2500 rpm and 206 lb-ft (279 Nm) torque at 1625 rpm; B20 diesel compatible
  • The Groundsmaster 5900 offers mowing widths from 57" (145 cm) to 192" (487 cm), providing the flexibility for nearly any mowing requirement
  • Automatically adjusts the mower’s ground speed for the cutting conditions
  • Belts transfer power more efficiently than hydraulic motors, providing protection against hydraulic failures. The large diameter spindle housing dissipates impact loads, and dual tapered roller bearings last up to six times longer than ball bearings
  • The SmartCool™ system prevents overheating with auto-reversing cooling fans
  • CrossTrax® all-wheel drive system offers increased cross wheel traction control

Overview

The Groundsmaster® 5900-D rotary mower offers an impressive 16' (4.88 meter) cutting width for making quick work of even the largest jobs. Equipped with a 72 hp (53.7 kW) diesel engine, the 5900-D is powerful and efficient. The onboard InfoCenter™ provides diagnostics to identify potential maintenance issues. These features, along with the SmartCool™ system with an auto-reversing cooling fan, ensure a long, productive life.

Features

Mows 20.8 Acres Per Hour
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.
EnergySmart Efficiency
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
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.
Reduced Operator Vibration
Reduced Operator Vibration
4-way adjustable seat and air-ride suspension isolate the operator platform to reduce noise and vibration.
0
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.
Onboard InfoCenter™
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
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
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™
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
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™
SmartCool™
The SmartCool™ system prevents over-heating with auto-reversing cooling fans.
All Time Traction Assist
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 N/A
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; Disconnect ON/OFF switch for 12 & 24 volt service safety.
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 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 85" (216 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
IntelliDash™ Capable No
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 Two-post ROPS Extension System, 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)
Reel/Cylinder Drive Hydraulic
Safety/Operator Safety LED headlights, brake lights, tail lights, amber turn signals and flashers
Seat 4 -way adjustable seat with vinyl 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 4WD
Traction Drive (System) 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.
Transport Width 99" (251 cm)
Turning Circle (Diameter) Uncut circle - 0" diameter. Turning radius - 86" (218 cm)
Weight 6,710 lbs. (3043 kg) with full fluids
Wheelbase 77" (196 cm)
Width of Cut 192" (488 cm)

Documents

Title Documents
Groundsmaster 5900 Accessory Guide PDF - Brochure-en-us
Groundsmaster 5900/5910 Sell Sheet PDF - Sellsheet-en-us
Groundsmaster Large Rotary Lineup 1_21.pdf PDF - Product Literature-en-us