2300XPC GPL9762 7

Are you in search of a machine that combines smooth accuracy with operator-friendly features? This grader, powered by a distinctive dual-mode transmission, not only provides enhanced job site visibility but also serves as an exceptional tool for operators striving for surface precision.

Key features include:

  • Exceptional visibility, ensuring operators have a clear view of the job site for precise operation.
  • Smooth power delivery and optimized control, contributing to overall operational efficiency.
  • High-flow hydraulics equipped with on-demand Closed Load Sensing System (CLSS) valves, enhancing operator efficiency.
  • Dual engine power modes, offering increased fuel efficiency of up to 15% when compared to the GD655-5 model.

Product Features and benefits:

Innovative Dual-Mode Powershift Transmission: Experience superior control, finesse, and traction with the exclusive dual-mode transmission and torque-converter. This industry-first technology, coupled with anti-stall features, ensures steady efficiency for fine finish grading or precise cutting around obstacles.

Fuel Efficiency Power Modes: Choose between two selectable power settings for efficient operation. Eco mode enhances fuel efficiency during fine finish grading or light-duty road maintenance, while power mode tackles heavy pushing or high-demand tasks with optimal power.

Blade Lift Accumulators for Protection: Standard blade lift accumulators safeguard the moldboard, drawbar, and blade circle from damage. These selectable function blade accumulators absorb impacts, providing protection if the blade edge encounters immobile objects like manholes, boulders, or railroad crossings.

Operator Comfort for Long Workdays: Enhance operator comfort during long workdays with the standard air suspension seat. This seat adjusts to the operator’s weight and minimizes vibrations from the machine, reducing fatigue.

CLSS Constant Implement Speed Hydraulics: Benefit from a high-performance hydraulic system that ensures responsive control and smooth, constant speed. The closed-center load-sensing system allows multiple circuits to operate simultaneously, independent of engine speed.

Hexangular Cab for Increased Visibility: Improve visibility with a commanding view of the job site. The hexangular, low-profile cab layout offers a wide field of vision, increasing visibility of both front and rear work equipment.

Rearview Camera for Enhanced Safety: Ensure your operator can monitor surroundings effectively with the standard rearview monitor system and a dedicated display featuring custom settings. This guarantees that the main monitor consistently shows crucial machine information.

Hydraulic-Driven Cooling Fan for Efficiency: Run the fan only when necessary, enhancing efficiency and power. The hydraulic cooling fan adjusts its speed based on engine load and temperature, optimizing performance.

Actionable Insights with Komtrax: Stay informed about your machine’s productivity with the latest Komtrax system. Receive remote alerts on service needs, operating history, faults, and fuel usage reports, accessible by authorized users.

Product Specifications for GD655-6:


  • Model: SAA6D107E-3
  • Type: Water-cooled, 4-cycle, direct injection
  • Aspiration: Turbocharged, aftercooled, cooled EGR
  • Number of cylinders: 6
  • Bore: 4.21 in
  • Stroke: 4.88 in
  • Piston displacement: 408 in³
  • Gross horsepower (Manual mode):
    • P-mode:
      • Gear 1-3 @ 2,000 rpm: 183 HP
      • Gear 4-6 @ 2,000 rpm: 203 HP
      • Gear 7-8 @ 2,100 rpm: 221 HP
    • E-mode:
      • Gear 1-6 @ 2,000 rpm: 183 HP
      • Gear 7-8 @ 2,000 rpm: 221 HP
  • Net horsepower (Manual mode):
    • P-mode:
      • Gear 1-3 @ 2,000 rpm: 180 HP
      • Gear 4-6 @ 2,000 rpm: 200 HP
      • Gear 7-8 @ 2,100 rpm: 218 HP
    • E-mode:
      • Gear 1-6 @ 2,000 rpm: 180 HP
      • Gear 7-8 @ 2,000 rpm: 218 HP
  • Max. torque @ 1,450 rpm: 694 lbs.-ft.
  • Torque rise: 30%
  • Fan speed: Max. 1,450 rpm
  • Air cleaner: 2-stage, dry-type

Transmissions and Torque Converter:

  • Full power shift transmission with integral freewheeling stator torque converter and lock-up.
  • Speeds (at rated engine speed):
    • Gear:
      • Forward
        • 1st: 2.1 mph
        • 2nd: 3.1 mph
        • 3rd: 4.3 mph
        • 4th: 6.3 mph
        • 5th: 9.6 mph
        • 6th: 13.9 mph
        • 7th: 19.0 mph
        • 8th: 27.5 mph
      • Reverse
        • 1st: 2.8 mph
        • 2nd: 5.7 mph
        • 3rd: 12.6 mph
        • 4th: 25.0 mph

Tandem Drive:

  • Oscillating welded box section: 1 ft. 8 in x 8 in
  • Side wall thickness:
    • Inner: 0.87 in
    • Outer: 0.75 in
  • Wheel axle spacing: 5 ft. 0 in
  • Tandem oscillation: 13° reverse
  • Tank: 1.8 US gal

Front Axle:

  • Type: Solid bar construction welded steel sections
  • Ground clearance at pivot: 2 ft. 0 in
  • Wheel lean angle, right or left: 16°
  • Oscillation, total: 32°

Rear Axle:

  • Alloy steel, heat-treated, full-floating axle with lock/unlock differential

Wheels, Front and Rear:

  • Bearings: Tapered roller
  • Tires: 17.5R25
  • Tire rims (demountable): 13 in one-piece rims


  • Hydraulic power steering providing stopped engine steering meeting ISO 5010.
  • Minimum turning radius: 24 ft. 3 in
  • Maximum steering range, right or left: 49°
  • Articulation, right or left: 25°


  • Service brake: Foot-operated, sealed oil disc brakes, hydraulically actuated on four tandem wheels
  • Parking brake: Manually actuated, spring applied, hydraulically released caliper


  • Front Frame Structure:
    • Height: 11.8 in
    • Width: 11.8 in
    • Upper, Lower: 1.0 in
  • Drawbar:
    • A-shaped, u-section press formed and welded construction for maximum strength with a replaceable drawbar ball
    • Drawbar frame: 8.3 x 0.87 in


  • Single-piece rolled ring forging. Six circle support shoes with replaceable wear surface.
  • Diameter (outside): 5 ft. 0 in
  • Circle reversing control hydraulic rotation: 360°


  • Hydraulic power shift fabricated from high tensile steel. Includes replaceable metal wear inserts, cutting edge, and end bits.
  • Dimensions: 14 ft. x 26 in x 0.87 in
  • Arc radius: 1 ft. 5 in
  • Cutting edge: 6 x 0.63 in
  • Replaceable/Reversible side edges: 6 ft. x 0.63 in x 1 ft. 6 in
  • Blade pull:
    • Base GVW: 22,267 lbs.
    • With ripper GVW: 24,207 lbs.
  • Blade down pressure:
    • Base GVW: 15,300 lbs.
    • With ripper GVW: 18,519 lbs.
  • Blade range:
    • Moldboard side shift:
      • Right: 2 ft. 8 in
      • Left: 2 ft. 8 in
    • Maximum shoulder reach outside rear tires (frame straight):
      • Right: 6 ft. 7 in
      • Left: 6 ft. 7 in
    • Maximum lift above ground: 1 ft. 7 in
    • Maximum cutting depth: 2 ft. 0 in
    • Maximum blade angle, right or left: 90°
    • Blade tip angle: 40° forward, 5° backward


  • Load-sensing closed

Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/motor-graders/gd655-6

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DISCLAIMER: The information that has been provided in this article is sourced from https://www.komatsu.com. The author does not assume any responsibility or liability for the accuracy, completeness, or usefulness of the information provided. The author shall not be held liable for any loss or damage resulting from the use of this content. For further information please contact the manufacturer directly.