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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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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.

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
-

Bearings Tapered roller
Tires 17.5R25
Tire rims (demountable) 13" one-piece rims

KOMATSU

Name : KOMATSU

Service Tel : (8621)-6841-4567

E-mail :

Web Site : https://home.komatsu/en/

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