GD655-5

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Engine   
Model    Komatsu SAA6D107E-1* 
Type    Water-cooled,4-cycle,direct injection 
Aspiration    Turbocharged and air-to-air aftercooled 
Number of cylinders   
Bore  4.21"  107 mm 
Stroke  4.88"  124 mm 
Piston displacement  408 in  6.69 ltr 
Gross horsepower (Manual mode):     
P-mode     
Gear 1-3 @2000 rpm  183 HP  136 kW 
Gear 4-6 @2000 rpm  203 HP  151 kW 
Gear 7-8 @2100 rpm  221 HP  165 kW 
E-mode     
Gear 1-3 @2000 rpm  148 HP  110 kW 
Gear 4-6 @2000 rpm  183 HP  136 kW 
Gear 7-8 @2000 rpm  203 HP  151 kW 
Net flywheel horsepower** (Manual mode):     
P-mode     
Gear 1-3 @2000 rpm  180 HP  134 kW 
Gear 4-6 @2000 rpm  200 HP  149 kW 
Gear 7-8 @2100 rpm  218 HP  163 kW 
E-mode     
Gear 1-3 @2000 rpm  145 HP  108 kW 
Gear 4-6 @2000 rpm  180 HP  134 kW 
Gear 7-8 @2000 rpm  200 HP  149 kW 
Max. torque @1450 rpm  694 lb.ft.  941 Nm 96.0 kgm 
Torque rise    31 % 
Fan speed    Max. 1500 rpm 
Air cleaner    2-stage, dry-type 
Electrical    24 Volt with 90 Amp alternator 
Battery    2, low maintenance plus, 12 Volt, 1146 CCA 
* EPA Tier 3 and EU Stage 3A emissions certified     
** Net flywheel HP output for standard SAE J1349 including air cleaner, alternator (not charging), water pump, lubricating oil, fuel pump, muffler and fan running at minimum speed.     
Transmission and Torque Converter   
Full power shift transmission with integral free-wheeling stator torque converter and lockup. 
Speeds (at rated engine speed)     
Gear  Forward  Reverse 
1st  2.1 mph
3.4 km/h 
2.8 mph
4.5 km/h 
2nd  3.1 mph
5.0 km/h 
5.7 mph
9.2 km/h 
3rd  4.3 mph
7.0 km/h 
12.6 mph
20.3 km/h 
4th  6.3 mph
10.2 km/h 
25.0 mph
40.3 km/h 
5th  9.6 mph
15.4 km/h 
6th  13.9 mph
22.3 km 
7th  19.0 mph
30.6 km/h 
8th  27.5 mph
44.3 km/h 
Front Axle   
Type    Solid bar construction welded steel sections 
Ground clearance at pivot  2'0"  620 mm 
Wheel lean angle, right or left    16 
Oscillation, total    32 
Rear Axle   
Alloy steel, heat treated, full floating axle with lock/unlock differential. 
Tandem Drive   
Oscillating welded box section  1'8" x 8"  520 mm x 202 mm 
Side wall thickness:     
Inner  0.87"  22 mm 
Outer  0.75"  19 mm 
Wheel axle spacing  5'0"  1525 mm 
Tandem oscillation    11 forward, 13 reverse 
Wheels, Front and Rear   
Bearings    Tapered roller 
Tires    17.5R25 
Tire rims (demountable)    13" one-piece rims 
Steering   
Hydraulic power steering providing stopped engine steering meeting SAE J53 and J1151. 
Minimum turning radius  24'3"  7.4 m 
Maximum steering range, right or left    49 
Articulation, right or left    25 
Brakes   
Service brake    Foot operated, sealed wet disc brakes, hydraulically actuated on four tandem wheels, 13691 cm / 2,122 in total braking surface 
Parking brake    Manually actuated, spring applied, hydraulically released caliper with transmission interlock 
Frame   
Front Frame Structure     
Height  11.8"  300 mm 
Width  11.8"  300 mm 
Thickness  0.55"  14 mm 
Drawbar   
A-shaped, U-section press formed and welded construction for maximum strength with a replaceable drawbar ball. 
Drawbar frame  8.3"x 1"  210 x 25 mm 
Circle   
Single-piece rolled ring forging. Six circle support shoes with replaceable wear surface. Circle teeth hardened on front 180 of circle. 
Diameter (outside)  5'0"  1530 mm 
Circle reversing control hydraulic rotation    360 
Moldboard   
Hydraulic power shift fabricated from high carbon steel. Includes replaceable metal wear inserts, cutting edge and end bits. Cutting edge and end bits are hardened. 
Dimensions  14' x 26" x 0.87"  4320 x 660 x 22 mm 
Arc radius  1'1"  329 mm 
Cutting edge  6" x 0.63"  152 x 16 mm 
Blade Range   
Circle center shift:     
Right  1'11"  590 mm 
Left  1'11"  590 mm 
Moldboard side shift:     
Right  2'8"  820 mm 
Left  2'8"  820 mm 
Maximum shoulder reach outside rear tires (frame straight)     
Right  6'4"  1940 mm 
Left  6'4"  1940 mm 
Maximum lift above ground  1'7"  480 mm 
Maximum cutting depth  2'0"  615 mm 
Maximum blade angle, right or left    90 
Blade tip angle  40 forward  5 backward 
Hydraulic 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 @ 2000 rpm  52.8 u.s.gal/min  200 ltr/min 
Standby pressure  500 psi  3.4 MPa 35 kg/cm 
Maximum system pressure  3,000 psi  20.6 MPa 210 kg/cm 
Instrumentation   
Electric monitoring system with diagnostics: 
Gauges - Standard:  articulation, engine coolant temperature, fuel level, speedometer, T/M 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, eco, P mode, fan reverse, rpm set, high beam, working lights 
Optiona3  blade accumulator   
Service Refill Capacities   
Fuel tank  109.9 u.s. gal  416 ltr 
Cooling system  6.6 u.s. gal  24.9 ltr 
Crank case  6.1 u.s. gal  23.1 ltr 
Transmission  11.9 u.s. gal  45 ltr 
Final drive  4.5 u.s. gal  17 ltr 
Tandem housing (each)  15.1 u.s. gal  57 lt 
Hydraulic system  18.2 u.s. gal  69 ltr 
Circle reverse housing  1.8 u.s. gal  7 ltr 
Operating Weight (approximate)   
Standard configuration without pushplate     
Total  35,351 lb  16035 kg 
On rear wheels  25,534 lb  11582 kg 
On front wheels  9,817 lb  4453 kg 
With rear mounted ripper and front push plate:     
Total  39,505 lb  17916 kg 
On rear wheels  27,944 lb  12673 kg 
On front wheels  11,561 lb  5243 kg 
With mid-mounted scarifier, without front pushplate:     
Total  36,665 lb  16631 kg 
On rear wheels  25,708 lb  11661 kg 
On front wheels  10,957 lb  4970 kg 
Front pushplate weight 1075 kg 2,371 lb     
Operating weight based on the standard machine configuration with 17.5R25 tires, 14' moldboard, full fuel tank, coolant, lubricants, and operator     

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