Global-CE > Grader > KOMATSU Grader > Komatsu GD655-6 MOTOR GRADER

Komatsu GD655-6 MOTOR GRADER

Horsepower:

218 @2100 rpm

Moldboard:

14'

OperatingWeight:

39,505 lb

BucketCapacity:

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Product Feature Product Parameter

Product Feature

Dual-mode Transmission

The dual-mode transmission is built specifically for Komatsu motor graders. The transmission provides full power shifting as well as inching capabilities and automatic shifting in the higher ranges.

Higher Productivity & Lower Fuel Consumption

A new variable displacement piston pump, improvements in the transmission and driveline components, and a sophisticated electronic control system for the engine and transmission all combine to achieve optimum and efficient operation. The new GD655-6 will consume up to 15% less fuel than the GD655-5.

Long Wheel base & Short Turning Radius

Longest wheelbase in class for exceptional fine grading performance. A 25 degree articulation angle allows the GD655-6 to maintain a tight turning radius of 24'3" making this grader very maneuverable for tight road work and cul-de-sac operation.

Tier 4 Final Engine

The Komatsu SAA6D107E-3 engine is EPA Tier 4 Final emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine reduces nitrogen oxides (NOx) compared to the previous model.

Excellent Visibility

Excellent visibility from the hexangular cab and layout of the rear side pillars boost operator confidence and productivity in all grader applications. Well-positioned blade linkage provides an unobstructed view of the moldboard and front tires.

Product Parameter

Moldboard side shift:
Right	820 mm	2'8"
Left	820 mm	2'8"
Maximum shoulder reach outside rear tires (frame straight)
Right	2000 mm	6'7"
Left	2000 mm	6'7"
Maximum lift above ground	480 mm	1'7"
Maximum cutting depth	615 mm	2'0"
Maximum blade angle, right or left		90°
Blade tip angle	40° forward	5° backward

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

Fuel tank	390 ltr	103 u.s. gal
Cooling system	30 ltr	7.9 u.s. gal
Crank case	23 ltr	6.1 u.s. gal
Transmission	45 ltr	11.9 u.s. gal
Final drive	17 ltr	4.5 u.s. gal
Tandem housing (each)	57 lt	15.1 u.s. gal
Hydraulic system	69 ltr	18.2 u.s. gal
Circle reverse housing	7 ltr	1.8 u.s. gal

Single piece rolled ring forging. Six circle support shoes with replaceable wear surface. Circle teeth hardened on front 180° of circle.
Diameter (outside)	1530 mm	5'0"
Circle reversing control hydraulic rotation		360°

A-shaped, u-section press formed and welded construction for maximum strength with a replaceable drawbar ball.
Drawbar frame	210 x 22 mm	8.3" x 0.87"

Model		SAA6D107E-3*
Type		Water-cooled, 4-cycle, direct injection
Aspiration		Turbocharged, aftercooled, cooled EGR
Number of cylinders		6
Bore	107 mm	4.21"
Stroke	124 mm	4.88"
Piston displacement	6.69 ltr	408 in³
Gross horsepower (Manual mode):
P-mode
Gear 1-3 @2000 rpm	136 kW	183 HP
Gear 4-6 @2000 rpm	151 kW	203 HP
Gear 7-8 @2100 rpm	165 kW	221 HP
E-mode
Gear 1-6 @2000 rpm	136 kW	183 HP
Gear 7-8 @2000 rpm	165 kW	221 HP
Net horsepower (Manual mode):**
P-mode
Gear 1-3 @2000 rpm	134 kW	180 HP
Gear 4-6 @2000 rpm	149 kW	200 HP
Gear 7-8 @2100 rpm	163 kW	218 HP
E-mode
Gear 1-6 @2000 rpm	134 kW	180 HP
Gear 7-8 @2000 rpm	163 kW	218 HP
Max. torque @1450 rpm	941 Nm 96.0 kg•m	694 lb.ft.
Torque rise		30 %
Fan speed		Max. 1450 rpm
Air cleaner		2-stage, dry-type
* EPA Tier 4 Final emissions certified.
** Net horsepower output for standard (SAE J1349) including air cleaner, alternator (not charging), water pump, lubricating oil, fuel pump, muffler and fan running at minimum speed.

Front Frame Structure
Height	300 mm	11.8"
Width	300 mm	11.8"
Upper, Lower.	25 mm	1.0"

Type		Solid bar construction welded steel sections
Ground clearance at pivot	620 mm	2'0"
Wheel lean angle, right or left		16°
Oscillation, total		32°

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)	200 L/min	52.8 u.s.gal/min
Standby pressure	3.4 MPa 35 kg/cm²	500 psi
Maximum system pressure	20.6 MPa 210 kg/cm²	3,000 psi

Electric monitoring system with diagnostics:
Gauges / Standard:	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

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	4320 x 660 x 22 mm	14' x 26" x 0.87"
Arc radius	432 mm	1'5"
Cutting edge	152 x 16 mm	6" x 0.63"
Replaceable/Reversible side edges	156 x 16 x 456 mm	6' x 0.63" x 1'6"
Blade pull:
Base GVW	10100 kg	22,267 lbs
With ripper GVW	10980 kg	24,207 lbs
Blade down pressure:
Base GVW	6940 kg	15,300 lbs
With ripper GVW	8400 kg	18,519 lbs

Includes lubricants, coolant, full fuel tank
Total	16940 kg	37,346 lb
On rear wheels	12620 kg	27,822 lb
On front wheels	4320 kg	9,524 lb
With rear mounted ripper and front push plate:
Total	18900 kg	41,667 lb
On rear wheels	13820 kg	30,468 lb
On front wheels	5070 kg	11,177 lb
With mid-mounted scarifier:
Total	17480 kg	38,537 lb
On rear wheels	12600 kg	27,778 lb
On front wheels	4870 kg	10,737 lb

Ripping depth, maximum	425 mm	1'5"
Ripper shank holders		5
Ripper shank holder spacing	534 mm	1'9"
Penetration force	9390 kg	20,701 lbs
Pryout force	17600 kg	38,801 lbs
Machine length increase,beam raised	690 mm	2'5"

Middle, V-type:
Working width	1430 mm	4'8"
Scarifying depth, maximum	190 mm	7.5"
Scarifier shank holders		11
Scarifier shank holders spacing	138 mm	5.4"
Rear:
Working width	2186 mm	7'2"
Scarifying depth, maximum	165 mm	6.5"
Scarifier shank holders		9
Scarifier shank holders spacing	267 mm	10.5"

Hydraulic power steering providing stopped engine steering meeting ISO 5010.
Minimum turning radius	7.4 m	24'3"
Maximum steering range, right or left		49°
Articulation, right or left		25°

Oscillating welded box section	520 mm x 202 mm	1'8" x 8"
Side wall thickness:
Inner	22 mm	0.87"
Outer	19 mm	0.75"
Wheel axle spacing	1525 mm	5'0"
Tandem oscillation	11° forward	13° reverse
Tank	7 L	1.8 U.S. gal

Full power shift transmission with integral free wheeling stator torque converter and lock-up.
Speeds (at rated engine speed)
Gear	Forward	Reverse
1st	3.4 km/h 2.1 mph	4.5 km/h 2.8 mph
2nd	5.0 km/h 3.1 mph	9.2 km/h 5.7 mph
3rd	7.0 km/h 4.3 mph	20.3 km/h 12.6 mph
4th	10.2 km/h 6.3 mph	40.3 km/h 25.0 mph
5th	15.4 km/h 9.6 mph	-
6th	22.3 km 13.9 mph	-
7th	30.6 km/h 19.0 mph	-
8th	44.3 km/h 27.5 mph	-