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Motor graders

GD655-7

  • Engine power (HP) 218
  • Engine power (kW) 163
  • Operating weight (kg) 20200
  • Operating weight (lbs) 44533

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Komatsu’s GD655-7 grader includes technology innovations so it’s easier and safer to use, as well as more productive. With a Komatsu SAA6D107E-3 Tier 4 Final engine, rated at 163-165 kW, operating weight is 19.3 tonnes. Technology innovations include updates to the transmission and control improvements. Plus, it’s factory-fitted for “plug-and-play” use of a 3D machine control system from leading third-party suppliers. As with all our graders, key components are designed and manufactured by Komatsu to work together in an integrated package. And it comes standard with our Komtrax remote monitoring and location system, backed by our New Zealand-wide service and support network.

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    Features and benefits

    High performance Komatsu engine

    High performance Komatsu engine

    The GD655-6 features a new SAA6D107E-3 Tier 4 Final compliant engine and when coupled to Komatsu's Dual Mode Transmission, operators benefit from maximum control while reducing fuel consumption by up to 5% in Power Mode and 15% in Economy Mode.

    Komatsu Diesel Particulate Filter and Selective Catalytic Reduction System

    Komatsu Diesel Particulate Filter and Selective Catalytic Reduction System

    The KDPF and SCR reduces particulate matter and NOx while providing automatic regeneration that does not interfere with daily operation.

    Versatile moldboard geometry

    Versatile moldboard geometry

    Komatsu graders feature a versatile moldboard geometry. Save time and money when pulling ditches by throwing the windrow to the right, not the roadway - without narrowing the road bed. It's made possible by Komatsu's extraordinary reach and aggressive blade angle.


    Specifications

    Metric Imperial (US)
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    • Maximum lift above ground (ft): 1.57
    • Maximum lift above ground (mm): 480
    • Maximum cutting depth (mm): 615
    • Maximum cutting depth (ft): 2.02
    • Maximum blade angle, right or left (degrees): 90
    • Blade tip angle forward (degrees): 40
    • Blade tip angle reverse (degrees): 5

    • Moldboard side shift

      • Blade range: right (moldboard)(ft): 2.7
      • Blade range: right (moldboard)(mm): 820
      • Blade range: left (moldboard)(mm): 550
      • Blade range: left (moldboard)(ft): 820

    • Maximum shoulder reach outside rear tyres (frame straight)

      • Blade range: right (maximum shoulder reach)(mm): 2000
      • Blade range: right (maximum shoulder reach)(ft): 6.6
      • Blade range: left (maximum shoulder reach)(mm): 2000 (outside of tyres)
      • Blade range: left (maximum shoulder reach)(ft): 6.6 (outside of tires)

    • Operating weight on rear wheels (includes lubricants, coolant, fuel fuel tank)(kg): 12600
    • Operating weight on rear wheels (includes lubricants, coolant, fuel fuel tank)(lbs): 27777.41
    • Operating weight on front wheels (includes lubricants, coolant, fuel fuel tank)(kg): 4870
    • Operating weight on front wheels (includes lubricants, coolant, fuel fuel tank)(lbs): 10743.49

    • Engine Model: SAA6D107E-3*
    • Engine type: Water-cooled, 4-cycle, direct injection
    • Aspiration: Turbocharged, aftercooled, cooled EGR
    • Bore (in): 4.21
    • Bore (mm): 107
    • Stroke (in): 4.88
    • Stroke (mm): 124
    • Piston displacement (in^3): 408.24
    • Piston displacement (L): 6.69
    • Fan speed (Max rpm): 1450

    • Gross Horsepower (Manual mode)

      • P-Mode Gear 1-3 @ 2,000 rpm (kW): 137
      • P-Mode Gear 1-3 @ 2,000 rpm (HP): 183
      • P-Mode Gear 4-6 @ 2,000 rpm (kW): 151
      • P-Mode Gear 4-6 @ 2,000 rpm (HP): 203
      • P-Mode Gear 7-8 @ 2,000 rpm (kW): 165
      • P-Mode Gear 7-8 @ 2,000 rpm (HP): 221
      • E-Mode (manual) Gear 1-6 @ 2,000 rpm (kW): 135
      • E-Mode (manual) Gear 1-6 @ 2,000 rpm (HP): 180
      • E-Mode (manual) Gear 7-8 @ 2,000 rpm (kW): 163
      • E-Mode (manual) Gear 7-8 @ 2,000 rpm (HP): 218

    • Net horsepower** (Manual Mode)

      • P-Mode (manual) Gear 1-3 @ 2,000 rpm (HP): 180
      • P-Mode (manual) Gear 1-3 @ 2,000 rpm (kW): 135
      • P-Mode (manual) Gear 4-6 @ 2,000 rpm (kW): 150
      • P-Mode (manual) Gear 4-6 @ 2,000 rpm (HP): 200
      • P-Mode (manual) Gear 7-8 @ 2,100 rpm (HP): 218
      • P-Mode (manual) Gear 7-8 @ 2,100 rpm (kW): 163

    • Net horsepower**(Manual Mode)

      • E-Mode Gear 1-6 @ 2,000 rpm (HP): 183
      • E-Mode Gear 1-6 @ 2,000 rpm (kW): 137
      • E-Mode Gear 7-8 @ 2,000 rpm (kW): 165
      • E-Mode Gear 7-8 @ 2,000 rpm (HP): 221

    • Moldboard details: Hydraulic power shift fabricated from high tensile steel. Includes replaceable metal wear inserts, c
    • Dimensions (in): 170.08 x 25.98 x 0.87
    • Dimensions (mm): 4320 x 660 x 22
    • Arc radius (ft): 1.4
    • Arc radius (mm): 432
    • Cutting edge (mm): 152 x 16
    • Cutting edge (in): 6 x 0.6
    • Replaceable/Reversible side edges (mm): 156 x 16 x 456
    • Replaceable/Reversible side edges (in): 6.14 x 0.63 x 17.95

    • Blade pull

      • Blade pull - base GVW (kg): 6940

    • Blade down pressure

      • Blade pressure down - ripper GVW (kg): 8400
      • Blade pressure down - ripper GVW (lbs): 18519

    • Fuel tank (L): 390
    • Cooling system (US gal): 7.93
    • Cooling system (L): 30
    • Transmission (US gal): 11.9
    • Transmission (L): 45
    • Final drive (L): 17
    • Final drive (US gal): 4.49
    • Tandem housing (each)(US gal): 1.85
    • Tandem housing (each)(L): 7
    • Hydraulic system (L): 69
    • Circle reverse housing (US gal): 1.85
    • Hydraulic system (US gal): 18.23
    • Circle reverse housing (L): 7
    • DEF tank (L): 37
    • DEF tank (US gal): 9.77

    • Articulation, right or left (degrees): 25°
    • Minimum turning radius for steering (ft) (in): 24.28
    • Minimum turning radius for steering (m): 7.4

    • Front axle type: Solid bar construction welded steel sections
    • Ground clearance at pivot (mm): 620
    • Ground clearance at pivot (in): 24.41
    • Wheel lean angle, right or left (degrees): 16
    • Oscillation, total (degrees): 32

    • Number of scarifier shank holders: 9
    • Working width (mm): 1430
    • Maximum scarifying depth (in): 6.5
    • Maximum scarifying depth (mm): 165
    • Working width (in): 56.3

    • Circle engineering details: Single piece rolled ring forging. Six circle support shoes with replaceable wear surface. Circle tee
    • Diameter (outside) (mm): 1530
    • Circle reversing control hydraulic rotation (degrees): 360°

    • Oscillating welded box section (mm): 520 x 202
    • Oscillating welded box section (in): 20.47 x 7.95
    • Wheel axle spacing (mm): 1525
    • Tandem oscillation reverse (degrees): 13
    • Tandem oscillation forward (degrees): 11

    • Ripping depth, maximum (mm): 425
    • Ripper shank holders: 5
    • Ripper shank holder spacing (mm): 534
    • Penetration force (kg): 9390
    • Pryout force (lbs): 38801
    • Pryout force (kg): 17600
    • Machine length increase, beam raised (ft): 2.26
    • Machine length increase, beam raised (mm): 690

    • Output (at engine rated rpm)(L/min): 200
    • Output (at engine rated rpm)(gpm): 52.83
    • Standby pressure(psi): 493
    • Standby pressure(MPa): 3.4
    • Standby pressure(kg/cm^2): 35
    • Maximum system pressure(psi): 2986.89
    • Maximum system pressure(kg/cm^2): 210
    • Maximum system pressure(MPa): 20.6

    • Upper, Lower (mm): 25
    • Upper, Lower (in): 0.98

    • Drawbar details: A-shaped, u-section press formed and welded construction for maximum strength with a replaceable dra
    • Drawbar frame(mm): 210 x 22

    • Bearings: Tapered roller
    • Tires: 17.5xR25, Tubeless
    • Tire rims (demountable): 14" three-piece rims

    • Gauges: Articulation, engine coolant temperature, fuel level, speed meter, transmission shift indicator, engine tachometre, torque converter oil temperature.
    • Warning lights/ Indicator: Battery charge, brake oil pressure, blade float, brake oil pressure, inching temperature, directional indicator, engine oil pressure, hydraulic oil temperature, heater signal, lift arm lock, parking brake, differential lock, torque converter oil, temperature, ecology, P mode, fan reverse, rpm set, high beam, working lights.

    • Total operating weight (kg): 17480
    • Total operating weight (lbs): 38544.8

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