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Engine   
Model    Komatsu SAA6D102E-2 
Type    Water-cooled, 4-cycle 
Aspiration    Turbocharged, and air-to-air aftercooled 
Number of cylinders    6 
Bore x stroke  4.0" x 4.7"  102 mm x 120 mm 
Piston displacement  359 in³  5.88 ltr 
Governor    Mechanical, all-speed control 
Horsepower rating @ 2000 rpm (SAE J1349)     
Gross horsepower  127 HP  95 kW 
Net horsepower  120 HP  89 kW 
Tier 2, EU and Japan emissions certified     
Fuel system    Direct injection 
Lubrication system:     
Method    Gear pump, force-lubrication 
Filter    Full-flow 
Air cleaner    Dry-type with double radial-sealed elements and dust evacuator, plus dust indicator. 
 
Transmission   
Transmission - Hydrostatic, 1 pump, 2 motors with speed range select. 
Travel Speed*  Forward  Reverse 
1st**  2.7 - 8.1 mph
4.0 - 13.0 km/h  		2.7 - 8.9 mph
4.4 -14.3 km/h 
2nd  8.1 mph
13.0 km/h  		8.9 mph
14.3 km/h 
3rd  12.4 mph
20.0 km/h  		13.9 mph
22.0 km/h 
4th  21.4 mph
34.5 km/h  		23.6 mph
38.0 km/h 
*Measured with 20.5/25 (L2) tires     
**1st speed can be set variably     
 
Axles and Final Drives   
Drive system:    Four-wheel drive 
Front    Fixed, semi-floating 
Rear    Center-pin support, semi-floating
24° total oscillation 
Reduction gear    Spiral bevel gear 
Differential gear    Torque proportioning 
Final reduction gear    Planetary gear, single reduction 
 
Brakes   
Service brakes    Hydraulically-actuated, wet disc brakes actuate on four wheels. 
Parking brake    Wet, multi-disc brake on transfer output shaft. 
Emergency brake    Independent service brake system (front and rear) 
 
Steering System   
Type    Orbital, full-hydraulic power steering independent of engine rpm 
Steering angle    40° each direction 
Minimum turning radius at the center of outside tire  16'0"  4880 mm 
 
Bucket Controls   
The use of a PPC hydraulic control valve offers lighter operating effort for the work equipment control levers. The reduction in the lever force and travel makes it easy to operate in the work environment. Transmission F/R switch is integrated on the lever. 
Control positions     
Boom    Raise, hold, lower, and float 
Bucket    Roll back, hold, and dump 
 
Hydraulic System   
Capacity (discharge flow) @ engine-rated rpm     
Maximum flow for loader circuit     
Loader + steering pump  16.1 + 25.1 U.S. gal/min  61 + 95 ltr/min 
Pilot pump
(Gear-type pumps)  		9.8 U.S. gal/min  37 ltr/min 
Relief valve setting:     
Loader  19.9 MPa / 203 kg/cm²  2,900 psi 
Steering  20.6 MPa / 210 kg/cm²  3,000 psi 
Control valve    2-spool open center type 
Hydraulic cylinders:     
Loader and steering    Double-acting, piston 
Hydraulic cylinders / Number of Cylinders:  Bore:  Stroke: 
Boom/2  4.7" x 120 mm  26.5" x 674 mm 
Bucket/1  5.1" x 130 mm  19.4" x 493 mm 
Steering/2  2.8" x 77 mm  17.8" x 454 mm 
Hydraulic cycle time (rated load in bucket):     
Raise    5.9 sec 
Dump    1.4 sec 
Lower (empty)    3.6 sec 
Total cycle time    10.9 sec 
 
Service Refill Capacities   
Cooling system  4.5 U.S. gal  17.0 ltr 
Fuel tank  46.2 U.S. gal  175.0 ltr 
Engine  5.2 U.S. gal  19.5 ltr 
Hydraulic system  15.3 U.S. gal  58.0 ltr 
Axle (each, front and rear)  4.8 U.S. gal  18.0 ltr 
Transfer  1.5 U.S. gal  5.5 ltr 

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