John Deere XUV590M S4 Crossover Utility Vehicle

Delivers quick acceleration and provides a top speed of more than 77 km/h (48 mph)

The Gator™ XUV590E and XUV590M Crossover Series Utility Vehicle is powered by a 586-cc (35.8-cu in.), inline twin-cylinder, electronic fuel-injected (EFI) gasoline engine. The engine is electronically controlled through an engine control unit (ECU) to ensure optimal engine performance.

The engine offers the following performance and reliability features:

• 23.8 kW (32 hp*) at 5600 rpm
• 77 km/h (48 mph) top speed
• Electronic fuel injection (EFI) with engine control unit (ECU)
• Liquid cooled
• Designed for cold-weather starting (tested to -28.9°C [-20°F])
• Wet-sump lubrication system
• Spin-on oil filter and oil pan drain accessible through skid plate for easy servicing
• High air-flow air filter
• 875-W (65 maximum amp) charging system for accessory capability (see engine section for alternator output curve)
• Spark-arresting muffler is United States Forest Service (USFS) approved
• Low fuel consumption and large 28-L (7.4-U.S. gal.) fuel tank
• Environmental Protection Agency (EPA) and California Air Resources Board (CARB) compliant

* The engine horsepower information is provided by the engine manufacturer to be used for comparison purposes only. The actual operating horsepower will be less.

Designed for all-day comfort with many vehicle conveniences

• Operator-centric design provides class-leading ergonomics and comfortable seats
  • Easy entry/exit and pass through for operator and passenger
  • Optimal seating position provides more legroom
  • Automotive-like ergonomics
  • Excellent comfort while driving
• Best-in-class sealed storage volume of 34 L (9 gal.) with a large in-dash glove box and under hood storage. An additional 34 L (9 gal.) of under-seat storage is available on the S4 models.
• Hinged hood rotates open without tools for access to storage
• Side-by-side seating provides ample room for one operator and one passenger
  • Seats tilt forward for ease of service and to keep dry during outdoor storage
• Two cup holders are located within reach of the operator's station
• Standard 12-V direct current (VDC) outlet is conveniently located on the instrument panel
• Seven predrilled dash switch locations with snap out caps for various electrical accessories
• Occupant protective structure (OPS) with three-point seat belts and passenger side grab handle located on front post
• Start in gear or neutral position for quick starting. The service brake must be engaged to start.

Large, extra-durable, one-piece cargo box ensures hard-driving performance and longevity
The cargo box consists of a high-density polyethylene copolymer composite material that eliminates rust, dents, and reduces noise. This large, one-piece design has rounded inside corners to ensure material removal when tilted. The composite box is highly ribbed and supported with a welded, steel-ladder structure to ensure hard-driving performance and longevity. The three highly-styled exterior pieces are made of TPO for extra durability.

Four-wheel independent suspension provides unparalleled ride over challenging terrain and excellent handling through corners

• 203 mm (8 in.) of travel provides ample compression and wheel extension, which keep all four wheels on the ground for superior traction and vehicle control
• Unique, independent rear-suspension design ensures a great ride and protection for the CV shafts
• Adjustable coil-over shocks absorb the most demanding terrain
• Camber during compression to compensate for body roll and to maintain an optimal tire contact patch for improved cornering grip
• Increasing vehicle width during compression for additional stability.
• High-strength ASTM 80-55-06 ductile cast-iron knuckle, lower A-arm, and upper link to support the high stresses of the shocks, CV shaft, and wheels with the toughness to survive impacts from boulders
• Maintenance-free rubber torsional A-arm pivots for long life and quiet operation

Power steering for excellent handling characteristics and low steering effort

The Gator™ XUV590M Utility Vehicles are equipped with rack and pinion steering with power steering. These automotive-type systems exhibit excellent handling characteristics, as well as responsive steering and low steering effort.

Automotive-type, rack-and-pinion steering features include:

Optional electric power-assist steering (EPAS) system. Features of EPAS include:

• Anti-kickback feature reduces the amount of steering unwinding when traversing difficult terrain.
• The system is speed sensing and adjusts steering effort as the speed of the vehicle changes.
  • As speed increases there is less steering assist for improved road feel.
  • As speed decreases steering assist increases to give lower steering efforts for improved maneuverability.
• A warning/functional light on the instrument panel provides self-diagnostics and a warning light in the situation of no assist.
• Torque sensor measures steering wheel input so the on-board computer can provide the appropriate output for various driving situations.
  • Steel ball-bearings secure the steering shaft and delivers smooth, responsive operation
  • Tight turn radius of 3.7 m (12.3 ft) for excellent maneuverability
  • Completely sealed rack-and-pinion for long life
  • Low steering ratio (lock-to-lock steering wheel rotations) provides more responsive steering and less operator input
  • Shaft U-joints are phased for a smooth, uninterrupted motion of the steering wheel
  • Ackerman steering design provides more responsive steering, decreases tire wear when used on hard surfaces and is turf friendly (see description below)
  • Minimal bump steer eliminates unintended vehicle direction changes when traversing terrain and permits less feedback to the steering wheel (see description below)

The tire scrubbing, which also creates unwanted heat and wear in the tire, can be eliminated by turning the inside wheel at a greater angle than the outside one (Ackerman steering).

NOTE: Some competitors use parallel steering instead of Ackerman steering.

Bump steering defines the change in the forward steering angle (thus wheel position) as the suspension travels through its full motion. A large amount of angular change (5 degrees to 7 degrees) will alter the vehicle's direction and excessively move the steering wheel.