Crafted for precise and powerful control at the operator’s fingertips. This motor grader features a distinctive dual-mode transmission with a torque converter and innovative stall prevention technology, ensuring ease of operation for operators with varying skill levels.
- Outstanding visibility
- Smooth power delivery and optimized control
- High-flow hydraulics equipped with on-demand CLSS valves for enhanced operator efficiency
Experience up to a 15% increase in fuel efficiency compared to the GD655-5.
Product Features and benefits:
- 2D Cross Slope Standard: Simplify road maintenance and effortlessly maintain a desired cross slope angle when adjusting the blade cutting height. The main display and integrated control levers enable operators to quickly select a predetermined slope angle.
- Dual Mode Powershift Transmission: Control, finesse, and traction where needed, right at the ground, with our unique dual-mode transmission. The torque converter with stall prevention technology facilitates ease of operation for operators of varying skill levels.
- Convenient Control: All-new, low-effort fingertip control levers provide quick response and precision for both new and experienced operators. Positioned on the powered armrests for ultimate comfort, these levers reduce arm movement by up to 92%.
- Designed for Ease of Operation: Put your operator in control with a right-sized steering wheel and steering lever, allowing customization based on operator preference and reducing fatigue.
- Fuel Efficiency: Efficient operation with two selectable power settings. Eco mode enhances fuel efficiency for fine finish grading or light-duty road maintenance, while power mode tackles heavy pushing or high-demand tasks.
- Reliability: Protect the moldboard, drawbar, and blade circle from damage with two selectable function blade accumulators. Blade lift cylinders absorb impacts if the blade edge encounters immobile objects, ensuring reliability.
- Operator Comfort: Long workdays are more comfortable with the new standard air suspension seat. The seat adjusts to the operator’s weight, dampening vibrations from the machine and reducing fatigue.
- Smooth, Efficient Operation: A high-performance hydraulic system provides responsive control and smooth, constant speed. The closed-center load sensing system allows multiple circuits to operate simultaneously, independent of engine speed.
- Ergonomic Cab: Increase visibility to the moldboard heel and toe with the new hexagonal cab. The comfortable cab is designed with enhanced ergonomics, featuring adjustable seats, consoles, armrests, and controls.
Product Specifications for GD655-7:
Engine:
- 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
- P-mode:
- 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
- P-mode:
- Max. Torque @ 1,450 rpm:
- 694 lbs.-ft.
- Torque Rise:
- 30%
- Fan Speed:
- Max. 1,450 rpm
- Air Cleaner:
- 2-stage, dry-type
Transmission and Torque Converter:
- Full Power Shift Transmission with Integral Free-Wheeling Stator Torque Converter and Lock-up.
- Speeds (at Rated Engine Speed):
- 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
- Forward:
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:
- 2’0″
- 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
Steering:
- 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°
Brakes:
- Service Brake:
- Foot Operated, Sealed Oil Disc Brakes, Hydraulically Actuated on Four Tandem Wheels
- Parking Brake:
- Manually Actuated, Spring Applied, Hydraulically Released Caliper
Frame:
- 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
Circle:
- Single Piece Rolled Ring Forging.
- Diameter (Outside):
- 5 ft. 0 in
- Circle Reversing Control Hydraulic Rotation:
- 360°
Moldboard:
- Hydraulic Power Shift Fabricated from High Tensile Steel.
- 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
- Moldboard Side Shift:
Hydraulics:
- Load-Sensing Closed Center Hydraulics with Variable Displacement Piston Pump.
- Output (at Engine Rated RPM):
- 52.8 gpm
- Standby Pressure:
- 500 psi
- Maximum System Pressure:
- 3,000 psi
Instrument:
- Electric Monitoring System with Diagnostics.
- Gauges:
- Articulation, Engine Coolant Temperature, Fuel Level, Speed Meter, Transmission Shift Indicator, Engine Tachometer, 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
Capacities (Refilling):
- Fuel Tank:
- 103 US gal
- Cooling System:
- 7.9 US gal
- Crank Case:
- 6.1 US gal
- Transmission:
- 11.9 US gal
- Final Drive:
- 4.5 US gal
- Tandem Housing (Each):
- 15.1 US gal
- Hydraulic System:
- 18.2 US gal
- Circle Reverse Housing:
- 1.8 US gal
Operating Weight (Approximate):
- Includes Lubricants, Coolant, Full Fuel Tank:
- Total: 38,140 lbs.
- With Rear Mounted Ripper and Front Push Plate:
- Total: 41,667 lbs.
Ripper:
- Ripping Depth, Maximum:
- 1 ft. 5 in
- Ripper Shank Holders:
- 5
- Ripper Shank Holder Spacing:
- 1 ft. 9 in
- Penetration Force:
- 20,701 lbs.
- Pryout Force:
- 38,801 lbs.
- Machine Length Increase, Beam Raised:
- 2 ft. 5 in
Scarifier:
- Middle, V-Type:
- Working Width: 4 ft. 8 in
- Scarifying Depth, Maximum: 7.5 in
- Scarifier Shank Holders: 11
- Scarifier Shank Holders Spacing: 5.4 in
- Rear:
- Working Width: 7 ft. 2 in
- Scarifying Depth, Maximum: 6.5 in
- Scarifier Shank Holders: 9
- Scarifier Shank Holders Spacing: 10.5 in
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/motor-graders/gd655-7
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