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Model    Komatsu SAA6D170E-3 
Type    Water-cooled, 4-cycle 
Aspiration    Air-to-air aftercooled, turbocharged 
Number of cylinders   
Bore x stroke  6.7" x 6.7"  170 mm x 170 mm 
Piston displacement  1,413 in³  23.15 ltr 
Horsepower rating @ 2000 rpm (SAE J1349)     
Gross power  522 HP  389 kW 
Flywheel/net power  485 HP  362 kW 
Fuel system    Direct injection 
Governor    Electronic, all-speed control 
Lubrication system:     
Lubrication method    Gear pump, force-lubrication 
Filter    Full-flow type 
Air cleaner    Dry type with double elements and dust evacuator, plus dust indicator on monitor. 
Torque converter:     
Type    3-element, single-stage, 2-phase, water cooled. 
Type    Full-powershift, planetary gear type. 
Travel speed    Measured with 35/65 R33 L4 tires. 
Speed:  Forward  Reverse 
*1st  4.0 mph
6.5 km/h 
4.5 mph
7.2 km/h 
**2nd  7.3 mph
11.8 km/h 
13.0 km/h 
**3rd  12.9 mph
20.8 km/h 
14.3 mph
23.0 km/h 
**4th  22.5 mph
36.2 km/h 
24.9 mph
40.0 km/h 
*Torque converter drive     
**Torque converter lock-up drive     
Axles and Final Drives   
Drive system    Four-wheel drive 
Front    Fixed, full floating 
Rear    Center-pin support, full floating, 26° total oscillation 
Reduction gear    Spiral bevel gear 
Differential gear    Front conventional, rear locking 
Final reduction gear    Planetary gear, single reduction, oil bath 
Service brakes    Hydraulically actuated, wet multi-disc brakes actuate on four wheels. 
Parking brake    Dry-disc, hydraulically-released, spring applied on front axle input shaft. 
Steering System   
Type    Articulated type, full-hydraulic power steering independent of engine rpm 
Steering angle    40° each direction 
Minimum clearance radius at the outside corner of the blade  27'10"  8485 mm 
Turning radius, centerline outside tire  22'11"  6980 mm 
Hydraulic System   
Steering Control:     
Hydraulic pump    Gear pump 
Capacity at rated rpm  61.3 U.S. gal/min  252 ltr/min 
Relief valve setting  3,000 psi  210 kgf/cm² 
Hydraulic cylinders     
Type    Double-acting, piston type 
Number of cylinders - 2  Bore x Stroke:  Bore x Stroke: 
Steering  5.1" x 20.8"  130 mm x 529 mm 
Implement Control:     
Hydraulic pump    Gear pump 
Capacity at rated rpm  80.3 U.S. gal/min  304 ltr/min 
Relief valve setting  3,000 psi  210 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders:  Bore x Stroke:  Bore x Stroke: 
Blade lift  6.3" x 42.5"  160 mm x 1080 mm 
Tilt and pitch  7.0" x 9.3"  180 mm x 237 mm 
Control valve    2-spool type 
Control positions:     
Blade lift    Raise, hold, lower, and float 
Tilt and pitch    Tilt-left, tilt-right, hold, pitch forward and back 
Service Refill Capacities   
Cooling system  42.3 U.S. gal  160 ltr 
Fuel tank  177.0 U.S. gal  670 ltr 
Engine  12.4 U.S. gal  47 ltr 
Hydraulic system  56.8 U.S. gal  215 ltr 
Axle (each front and rear)  32.8 U.S. gal  124 ltr 
Torque converter and transmission  29.1 U.S. gal  110 ltr 

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