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Metric
Imperial (US)
Motor graders
GD655-6
- Horsepower (HP) 218 HP @ 2,100 rpm
- Horsepower (kW) 163 kW @ 2100 rpm
- Operating weight (kg) 16 940
- Operating weight (lbs) 37,346
- Moldboard (ft) 14
- Moldboard (m) 4
Next-level grading
Looking for smooth accuracy in an operator-friendly machine? Powered by a unique dual-mode transmission, this grader has enhanced job site visibility and offers operators an exceptional tool for achieving surface precision.
- Exceptional visibility
- Smooth power and optimized control
- High flow hydraulics with on-demand CLSS valves for operator efficiency
- Dual engine power modes for increased fuel efficiency of up to 15%*
Note: *compared to GD655-5
Features and benefits
Unique dual-mode powershift transmission with torque-converter
Control, finesse and traction where it is needed — at the ground. For fine finish grading at a steady speed or for precise cutting around objects, the industry exclusive, dual-mode transmission with anti-stall technology allows for steady efficiency.
Fuel efficiency power modes
Efficient operation with two selectable power settings. For fine finish grading or light-duty road maintenance, eco mode helps provide fuel efficiency, while heavy pushing or high-demand tasks are tackled in power mode.
Blade lift accumulators standard
Help protect the moldboard, drawbar and blade circle from damage with two selectable function blade accumulators. Blade lift cylinders absorb impacts if the blade edge hits an immobile object such as a manhole, boulder or railroad crossing.
Operator comfort
Long days on the job are more comfortable with the standard air suspension seat. The seat adjusts to the operator’s weight and dampens vibrations from the machine, helping to reduce fatigue.
CLSS constant implement speed multi-circuit capable hydraulics
High-performance hydraulic system provides responsive control and smooth, constant speed. The closed-center load-sensing system allows for multiple circuits to operate simultaneously, independent of engine speed.
Hexangular cab
Increase visibility with a commanding view of the job site. The hexangular, low-profile cab layout offers a wide field of vision, increasing the front and rear work equipment views.
Rearview camera
Make sure your operator can keep an eye on the surroundings. The standard rearview monitor system and dedicated display with custom settings means that the main monitor is always showing important machine information.
Hydraulic-driven cooling fan
Run the fan only when needed, for increased efficiency and power. A hydraulic cooling fan senses engine load and temperature adjusting fan speed as necessary.
Actionable insights
Keep track of your machine and its productivity with the latest Komtrax system. Receive service alerts, operating history, faults, and fuel usage reports remotely by anyone granted user access.
Specifications
- Full specs
- Standard equipment
- Optional equipment
Metric
Imperial (US)
Expand all
- Maximum lift above ground (ft): 1 ft 7 in
- Maximum lift above ground (mm): 480
- Maximum cutting depth (mm): 615
- Maximum cutting depth (ft): 2 ft 0 in
- 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 ft 8 in
- Blade range: right (moldboard)(mm): 820
- Blade range: left (moldboard)(mm): 820
- Blade range: left (moldboard)(ft): 2 ft 8 in
-
Maximum shoulder reach outside rear tires (frame straight)
- Blade range: right (maximum shoulder reach)(mm): 2 000
- Blade range: right (maximum shoulder reach)(ft): 6 ft 7 in
- Blade range: left (maximum shoulder reach)(mm): 2 000
- Blade range: left (maximum shoulder reach)(ft): 6 ft 7 in
- Operating weight on rear wheels (includes lubricants, coolant, fuel fuel tank)(kg): 12 620
- Operating weight on rear wheels (includes lubricants, coolant, fuel fuel tank)(lbs): 27822
- Operating weight on front wheels (includes lubricants, coolant, fuel fuel tank)(kg): 4 320
- Operating weight on front wheels (includes lubricants, coolant, fuel fuel tank)(lbs): 9524
- Total operating weight (includes lubricants, coolant, full fuel tank)(lbs): 37346
- Total operating weight (includes lubricants, coolant, full fuel tank)(kg): 16 940
-
With rear mounted ripper and front push plate
- Total operating weight with rear mounted ripper and front push plate(lbs): 41,667
- Total operating weight with rear mounted ripper and front push plate(k): 18 900
- Operating weight (rear wheels w/ front mounted ripper & front push plates)(kg): 5 070
- Operating weight (rear wheels w/ front mounted ripper & front push plates)(lbs): 11,177
- Operating weight (rear wheels w/ rear mounted ripper & front push plates)(kg): 13 820
- Operating weight (rear wheels w/ rear mounted ripper & front push plates)(lbs): 30,468
-
- Total operating weight with 5.5 m blade (lbs): 37,346
- Total operating weight with 5.5 m blade (kg): 16 940
- Operating weight on front wheels with 5.5 m blade (kg): 4 320
- Operating weight on front wheels with 5.5 m blade (lbs): 9,524
- Operating weight on rear wheels with 5.5 m blade (kg): 12 620
- Operating weight on rear wheels with 5.5 m blade (lbs): 27,822
*5.5 m blade, L3 tire, ripper (three shanks) and pusher
-
With mid-mounted scarifier
- Total operating weight with mid-mounted scarifier (lbs): 38,537
- Total operating weight with mid-mounted scarifier (kg): 17 480
- Operating weight on rear wheels with mid-mounted scarifier (kg): 12 600
- Operating weight on rear wheels with mid-mounted scarifier (lbs): 27,778
- Operating weight on front wheels with mid-mounted scarifier (kg): 4 870
- Operating weight on front wheels with mid-mounted scarifier (lbs): 10,737
- Engine Model: SAA6D107E-3*
- Engine type: Water-cooled, 4-cycle, direct injection
- Aspiration: Turbocharged, aftercooled, cooled EGR
- Number of cylinders: 6
- Bore (in): 4.21
- Bore (mm): 107
- Stroke (in): 4.88
- Stroke (mm): 124
- Piston displacement (in^3): 408
- Piston displacement (L): 6.69
- Max.torque @ 1,450 rpm (kg/m): 96
- Max.torque @ 1,450 rpm (lbs/ft): 694
- Max.torque @ 1,450 rpm (nm): 941
- Torque rise (%): 30
- Fan speed (Max rpm): 1450
- Air cleaner: 2-stage, dry-type
-
Gross Horsepower (Manual mode)
- P-Mode Gear 1-3 @ 2,000 rpm (kW): 136
- 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): 136
- E-Mode (manual) Gear 1-6 @ 2,000 rpm (HP): 183
- E-Mode (manual) Gear 7-8 @ 2,000 rpm (kW): 165
- E-Mode (manual) Gear 7-8 @ 2,000 rpm (HP): 221
-
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): 134
- P-Mode (manual) Gear 4-6 @ 2,000 rpm (kW): 149
- 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): 180
- E-Mode Gear 1-6 @ 2,000 rpm (kW): 134
- E-Mode Gear 7-8 @ 2,000 rpm (kW): 163
- E-Mode Gear 7-8 @ 2,000 rpm (HP): 218
- Moldboard details: Hydraulic power shift fabricated from high tensile steel. Includes replaceable metal wear inserts, cutting edge and end bits. Cutting edge and end bits are hardened.
- Dimensions (in): 14 ft x 26 in x .87 in
- Dimensions (mm): 4 320 x 660 x 22
- Arc radius (ft): 1 ft 5 in
- Arc radius (mm): 432
- Cutting edge (mm): 152 x 16
- Cutting edge (in): 6 x 0.63
- Replaceable/Reversible side edges (mm): 156 x 16 x 456
- Replaceable/Reversible side edges (in): 6 ft x 0.63 in x 1 ft 6 in
-
Blade pull
- Blade pull - base GVW (lbs): 22,267
- Blade pull - base GVW (kg): 10 100
- With ripper GVW Blade pull(lbs): 24,207
- With ripper GVW Blade pull(kg): 10 980
-
Blade down pressure
- Blade pressure down - base GVW (lbs): 15,300
- Blade pressure down - base GVW (kg): 6 940
- With ripper GVW Blade down(kg): 8 400
- With ripper GVW Blade down(lbs): 18,519
- Fuel tank (L): 390
- Fuel tank (US gal): 103
- Cooling system (US gal): 7.9
- Cooling system (L): 30
- Crank case (L): 23
- Crank case (US gal): 6.1
- Transmission (US gal): 11.9
- Transmission (L): 45
- Final drive (L): 17
- Final drive (US gal): 4.5
- Tandem housing (each)(US gal): 15.1
- Tandem housing (each)(L): 57
- Hydraulic system (L): 69
- Circle reverse housing (US gal): 1.8
- Hydraulic system (US gal): 18.2
- Circle reverse housing (L): 7
- Maximum steering range, right or left (degrees): 49
- Articulation, right or left (degrees): 25
- Hydraulic power steering: Providing stopped engine steering meeting ISO 5010.
- Minimum turning radius for steering (ft) (in): 24 ft. 3 in
- 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): 2 ft 0 in
- Wheel lean angle, right or left (degrees): 16
- Oscillation, total (degrees): 32
-
Speeds (at rated engine speed)
- 1st Gear - forward (kph): 3.4
- 1st Gear - forward (mph): 2.1
- 2nd Gear - forward (kph): 5
- 2nd Gear - forward (mph): 3.1
- 3rd gear - forward (mph): 4.3
- 3rd gear - forward (kph): 7
- 4th gear - forward (mph): 6.3
- 4th gear - forward (kph): 10.2
- 5th gear - forward (mph): 9.6
- 5th gear - forward (kph): 15.4
- 6th gear - forward (mph): 13.9
- 6th gear - forward (kph): 22.3
- 7th gear - forward (mph): 19
- 7th gear - forward (kph): 30.6
- 8th gear - forward (mph): 27.5
- 8th gear - forward (kph): 44.3
- 1st Gear - reverse (kph): 4.5
- 1st Gear - reverse (mph): 2.8
- 2nd Gear - reverse (mph): 5.7
- 2nd Gear - reverse (kph): 9.2
- 3rd gear - reverse (kph): 20.3
- 3rd gear - reverse (mph): 12.6
- 4th gear - reverse (mph): 25
- 4th gear - reverse (kph): 40.3
-
Middle, V-type
- Middle scarifier, V-type working width (ft): 4 ft 8 in
- Middle scarifier, V-type working width (mm): 1 430
- Middle scarifier, V-type scarifying depth, maximum (in): 7.5
- Middle scarifier, V-type scarifying depth, maximum (mm): 190
- Middle scarifier, V-type scarifier shank holders spacing (mm): 138
- Middle scarifier, V-type scarifier shank holders spacing (in): 5.4
- Middle scarifier, V-type scarifier shank holders (in): 11
-
Rear
- Rear scarifier working width (mm): 2 186
- Rear scarifier working width (ft): 7 ft 2 in
- Rear scarifier scarifying depth, maximum (in): 6.5
- Rear scarifier scarifying depth, maximum (mm): 165
- Rear scarifier scarifying shank holders: 9
- Rear scarifier scarifying shank holders spacing (in): 10.5
- Rear scarifier scarifying shank holders spacing (mm): 267
- Circle engineering details: Single piece rolled ring forging. Six circle support shoes with replaceable wear surface. Circle teeth hardened on front 180 degree of circle.
- Diameter (outside) (mm): 1 530
- Diameter (outside) (ft): 5
- Circle reversing control hydraulic rotation (degrees): 360
- Oscillating welded box section (mm): 520 x 202
- Oscillating welded box section (in): 1 ft 8 in x 8 in
- Side wall thickness - inner (mm): 22
- Side wall thickness - inner (in): 0.87
- Side wall thickness - outer (mm): 19
- Side wall thickness - outer (in): 0.75
- Wheel axle spacing (ft/ in): 5 ft 0 in
- Wheel axle spacing (mm): 1 525
- Tandem oscillation reverse (degrees): 13
- Tandem oscillation forward (degrees): 11
- Tank (L): 7 L
- Tank (US gal): 1.8
- Ripping depth, maximum (ft): 1 ft 5 in
- Ripping depth, maximum (mm): 425
- Ripper shank holders: 5
- Ripper shank holder spacing (ft): 1 ft 9 in
- Ripper shank holder spacing (mm): 534
- Penetration force (kg): 9 390
- Penetration force (lbs): 20,701
- Pryout force (lbs): 38,801
- Pryout force (kg): 17 600
- Machine length increase, beam raised (ft): 2 ft 5 in
- Machine length increase, beam raised (mm): 690
- Details of hydraulics system: Load-sensing closed center hydraulics with variable displacement piston pump. Short stroke/low effort direct acting control valves with preselected maximum flow setting to each function. Double acting anti-drift check valves on blade lift, tip, circle shift, articulation, and leaning wheels.
- Output (at engine rated rpm)(L/min): 200
- Output (at engine rated rpm)(gpm): 52.8
- Standby pressure(psi): 500
- Standby pressure(MPa): 3.4
- Standby pressure(kg/cm^2): 35
- Maximum system pressure(psi): 3,000
- Maximum system pressure(kg/cm^2): 210
- Maximum system pressure(MPa): 20.6
- Frame height (in): 11.8
- Frame height (mm): 300
- Frame width (in): 11.8
- Frame width (mm): 300
- Upper, Lower (mm): 25
- Upper, Lower (in): 1.0 in
- Drawbar details: A-shaped, u-shaped press formed and welded construction for maximum strength with a replaceable drawbar ball
- Drawbar frame(in): 8.3 x 0.87
- Drawbar frame(mm): 210 x 22
- Bearings: Tapered roller
- Tires: 17.5R25
- Tire rims (demountable): 13 in one-piece rims
- Gauges: Electric monitoring system with diagnostics.
- Standard gauges details: Standard - articulation, engine coolant temperature, fuel level, speed meter, transmission shift indicator, engine tachometer, torque converter oil temperature
- Warning lights/ Indicator: Standard-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
- Rear axle construction: Alloy steel, heat treated, full floating axle with lock/unlock differential
- Service brake details: Foot operated, sealed oil disc brakes, hydraulically actuated on four tandem wheels
- Parking brake details: Manually actuated, spring applied, hydraulically released caliper
Metric
Imperial (US)
Engine and its related items
- Accelerator and electric throttle control
- Air cleaner, double element with dust indicator
- Air intake extension
- Antifreeze -22 F(-30C)
- Auto-idle Shutdown
- Hydraulic driven, reversing, cooling fan, blower type, plastic blade, with fan guard
- Engine, Komatsu SAA6D107E-3, 145 to 218 VHP EPA Tier 4 Final certified, turbocharged and air-air after cooled
- Fuel line pre-filter
- KDPF - After-Treatment Assembly Consisting of KDOC and KCSF
- Secondary Engine Shutdown Switch
- Selective Catalytic Reduction (SCR) System
Elecrical system:
- Alarm, backup
- Alternator, 140 Ampere, (24V)
- Batteries, Extreme duty, 2 x 12V, 1146 cca each
- Battery, disconnect switch
- Dome light Cab
- Headlights,(2) halogen type, front bar mounted
- Horn, electric
- Indicator lights:
- Battery charge
- Blade float
- Brake oil pressure
- Cooling fan reverse mod
- Differential lock
- Differential oil temperatur
- Dual power mode, economy and power
- Engine oil pressure
- Engine RPM set
- Lift arm lock
- Lights, high beam
- Parking break
- Transmission system electrical circuit - Lights, backup, stop, directional
- Starter 5.5kW
- Working light, front(4) and rear(2)
- Working light ,(4)Cab mounted flood type
Operator environment:
- 12V (10A) power port
- Air conditioner (R134a) with heater
- AM/FM radio
- Cab: low profile with ROPS/FOPS Level II (SAE J1040, J2311)
- Console, adjustable with instrument panel monitoring system
- Electric defroster rear window
- Mirrors: interior Cab, right and left exterior mirrors
- Electric defroster rear window
- Mirrors: interior Cab, right and left exterior mirrors
- Multi-monitor with 7" LCD Display
- Rearview Camera and Monitor
- Sound suppression,74 Dba at operators ear with floor mat with tinted windows, front, rear and door intermittent wiper/washers
Power Train
- Dual mode transmission (8F-4R) power shift direct drive and torque converter with auto shift
- Axle, rear full floating, planetary type reduction
- Service brakes, fully hydraulic wet disc
- Parking brake, spring apply, hydraulic release dry disc
- Differential, manual lock/unlock
- Tires and rims: 17.5R25 radials on one-piece 13" rims (6)
Work equipment and hydraulics
- Blade accumulators
- Blade lift float, detent type, LH and RH
- Circle, drawbar mounted, 360° rotation with blade lift and circle side shift with anti-drift check valves
- Circle slip clutch
- Greaseless circle wear plates
- Hydraulic control valve, 10 valve section with control levers
- Hydraulic system, closed center, load sensing
- Steering, full hydraulic with tilt steering wheel plus leaning front wheels and frame articulation with anti-drift check valves
Other standard equipment
- Komtrax - Level 5
- Precleaner, Turbo II
- Provision for Grade Control, TOPCON
- Rear hitch
- Ripper, provision for battery cover and Engine side covers
- Steps and handrails, right, left and rear
- Toolbox with lock
- Vandalism protection, lockable fuel tank, hydraulic tank
Engine and its related items
- Accelerator and electric throttle control
- Air cleaner, double element with dust indicator
- Air intake extension
- Antifreeze -22 F(-30C)
- Auto-idle Shutdown
- Hydraulic driven, reversing, cooling fan, blower type, plastic blade, with fan guard
- Engine, Komatsu SAA6D107E-3, 145 to 218 VHP EPA Tier 4 Final certified, turbocharged and air-air after cooled
- Fuel line pre-filter
- KDPF - After-Treatment Assembly Consisting of KDOC and KCSF
- Secondary Engine Shutdown Switch
- Selective Catalytic Reduction (SCR) System
Elecrical system
- Alarm, backup
- Alternator, 140 Ampere, (24V)
- Batteries, Extreme duty, 2 x 12V, 1146 cca each
- Battery, disconnect switch
- Dome light Cab
- Headlights,(2) halogen type, front bar mounted
- Horn, electric
- Indicator lights:
- Battery charge
- Blade float
- Brake oil pressure
- Cooling fan reverse mod
- Differential lock
- Differential oil temperatur
- Dual power mode, economy and power
- Engine oil pressure
- Engine RPM set
- Lift arm lock
- Lights, high beam
- Parking break
- Transmission system electrical circuit - Lights, backup, stop, directional
- Starter 5.5kW
- Working light, front(4) and rear(2)
- Working light ,(4)Cab mounted flood type
Operator environment
- 12V (10A) power port
- Air conditioner (R134a) with heater
- AM/FM radio
- Cab: low profile with ROPS/FOPS Level II (SAE J1040, J2311)
- Console, adjustable with instrument panel monitoring system
- Electric defroster rear window
- Mirrors: interior Cab, right and left exterior mirrors
- Electric defroster rear window
- Mirrors: interior Cab, right and left exterior mirrors
- Multi-monitor with 7" LCD Display
- Rearview Camera and Monitor
- Sound suppression,74 Dba at operators ear with floor mat with tinted windows, front, rear and door intermittent wiper/washers
Power train
- Dual mode transmission (8F-4R) power shift direct drive and torque converter with auto shift
- Axle, rear full floating, planetary type reduction
- Service brakes, fully hydraulic wet disc
- Parking brake, spring apply, hydraulic release dry disc
- Differential, manual lock/unlock
- Tires and rims: 17.5R25 radials on one-piece 13" rims (6)
Work equipment and hydraulics
- Blade accumulators
- Blade lift float, detent type, LH and RH
- Circle, drawbar mounted, 360° rotation with blade lift and circle side shift with anti-drift check valves
- Circle slip clutch
- Greaseless circle wear plates
- Hydraulic control valve, 10 valve section with control levers
- Hydraulic system, closed center, load sensing
- Steering, full hydraulic with tilt steering wheel plus leaning front wheels and frame articulation with anti-drift check valves
Other standard equipment
- Komtrax - Level 5
- Precleaner, Turbo II
- Provision for Grade Control, TOPCON
- Rear hitch
- Ripper, provision for battery cover and Engine side covers
- Steps and handrails, right, left and rear
- Toolbox with lock
- Vandalism protection, lockable fuel tank, hydraulic tank
Metric
Imperial (US)
- Moldboard:
-- 12' x 26" x 0.87" with replaceable end bits
-- 6" x 0.63" throughhardened cutting edges and 5/8" hardware - Pusher plate (for use with rear mounted ripper/scarifier assembly)
- Rear-mounted ripper/scarifier assembly includes (3) shanks or (9) scarifier shanks can be inserted into the available slots
- Mid-mounted scarifier assembly (includes 11 shanks and replaceable points)
- Amber colored warning light
- 610 mm 2' LH/RH moldboard extensions
- Kit provision for a single function front attachment
- Moldboard:
-- 3710 mm x 660 mm x 22 mm with replaceable end bits
-- 152 mm x 16 mm throughhardened cutting edges and 5/8" hardware - Pusher plate (for use with rear mounted ripper/scarifier assembly)
- Rear-mounted ripper/scarifier assembly includes (3) shanks or (9) scarifier shanks can be inserted into the available slots
- Mid-mounted scarifier assembly (includes 11 shanks and replaceable points)
- Amber colored warning light
- 610 mm 2' LH/RH moldboard extensions
- Kit provision for a single function front attachment
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