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Model    Komatsu SAA6D107E-1 
Type    Water-cooled, 4-cycle 
Aspiration    Turbocharged, aftercooled 
Number of cylinders   
Bore x stroke  4.21" x 4.88"  107 mm x 124 mm 
Piston displacement  408 in³  6.69 ltr 
Governor    All-speed, electronic 
SAE J1995  171 HP  127.3 kW 
ISO 9249/SAE J1349  167 HP  125 kW 
Hydraulic fan at maximum speed  156 HP  117 kW 
Rated rpm    2000 rpm 
Fan drive method for radiator cooling    Hydraulic 
Fuel system    Direct injection 
Lubrication system:     
Method    Gear pump, force-lubrication 
Filter    Full-flow type 
Air cleaner    Dry type with double elements and dust evacuator, plus dust indicator 
EPA Tier 3 and EU Stage 3A emissions certified.     
Transmission    Hydrostatic, 1 pump, 2 motors with speed range select 
Travel Speed (Both Forward and Reverse):  Measured with 20.5-25 tires   
1st  2.5 - 8.1 mph  4.0 - 13.0 km/h 
2nd  8.1 mph  13.0 km/h 
3rd  11.6 mph  18.7 km/h 
4th  23.6 mph  38.0 km/h 
Axles and Final Drives   
Drive system    Four-wheel drive 
Front    Fixed, semi-floating 
Rear    Center-pin support, semi-floating, 30° total oscillation 
Reduction gear    Spiral bevel gear 
Differential gear    Torque proportioning 
Final reduction gear    Planetary gear, single reduction 
Service brakes    Hydraulically actuated, wet disc brakes actuate on four wheels 
Parking brake    Wet, multi-disc brake on transfer output shaft 
Emergency brake    Parking brake is commonly used 
Steering System   
Type    Full-hydraulic power steering 
Steering angle    38.5° each direction (40° end stop) 
Minimum turning radius at the center of outside tire  17'8"  5380 mm 
Hydraulic System   
Steering system:     
Hydraulic pump    Gear type pump 
Capacity (at rated rpm)  45.4 U.S. gal/min  172 ltr/min 
Relief valve setting  2,990 psi  20.6 MPa 210 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders   
Bore x stroke  2.8" x 17.8"  70 mm x 453 mm 
Loader control:     
Hydraulic pump    Gear type pump 
Capacity  16.1 U.S. gal/min  61 ltr/min 
Relief valve setting  3,000 psi  210 kg/cm²
20.6 MPa 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders:  bore x stroke:  bore x stroke: 
Boom cylinder / 2  5.5" x 29.1"  140 mm x 740 mm 
Bucket cylinder / 1  6.3" x 20.9"  160 mm x 532 mm 
Control valve    2-spool type 
Control positions:     
Boom    Raise, hold, lower, and float 
Bucket    Tilt-back, hold, and dump 
Hydraulic cycle time (rated load in bucket):     
Raise    6.1 sec 
Dump    1.2 sec 
Lower (empty)    3.3 sec 
Service Refill Capacities   
Cooling system  6.6 U.S. gal  25 ltr 
Fuel tank  64.7 U.S. gal  245 ltr 
Engine  6.1 U.S. gal  23 ltr 
Hydraulic system  23.5 U.S. gal  89.0 ltr 
Axle (each front and rear)  6.3 U.S. gal  24.0 ltr 
Transfer case  1.7 U.S. gal  6.5 ltr 

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