WA150-6

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Engine   
Model    Komatsu SAA4D95LE-5*.0 0.000 000+ 
Type    Water-cooled, 4-cycle 
Aspiration    Turbocharged, aftercooled 
Number of cylinders   
Bore x stroke  3.74" x 4.53"  95 mm x 115 mm 
Piston displacement  199 in³  3.26 ltr 
Governor    All-speed, electronic 
Horsepower:     
SAE J1995 / Gross  99 HP  74 kW 
ISO 9249/SAE J1349 / Net  98 HP  73 kW 
Hydraulic fan at maximum speed / Net  95 HP  71 kW 
Rated rpm    2200 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   
Type . . . . . . . Hydrostatic, 1 pump, 2 motors with speed range select 
Travel speed
(Measured with 17.5-25 tires): 
Both Forward and Reverse  Both Forward and Reverse 
1st  3.4 - 8.5 mph  5.5 - 13.6 km/h 
2nd  8.5 mph  13.6 km/h 
3rd  14.6 mph  23.5 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, 16° 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    Parking brake is commonly used 
 
Steering System   
Type    Full-hydraulic power steering 
Steering angle    40° each direction 
Minimum turning radius at the center of outside tire  15'4"  4675 mm 
 
Hydraulic System   
Loader and steering pump:
Capacity (at rated rpm) 
28.5 U.S. gal/min  108 ltr/min 
Steering system:     
Hydraulic pump    Gear type pump 
Relief valve setting  2,700 psi  18.6 MPa
190 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders   
Bore x stroke  2.2" x 14.8"  55 mm x 375 mm 
Loader control:     
Hydraulic pump    Gear type pump 
Relief valve setting  3,000 psi  20.6 MPa
210 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders  bore x stroke  bore x stroke 
Boom cylinder - 2  4.3" x 24.7"  110 mm x 628 mm 
Bucket cylinder - 1  4.3" x 17.8"  110 mm x 452 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    6.0 sec 
Dump    1.1 sec 
Lower (Empty)    3.6 sec 
 
Service Refill Capacities   
Cooling system  3.9 U.S. gal  14.6 ltr 
Fuel tank  35.1 U.S. gal  133.0 ltr 
Engine  3.0 U.S. gal  11.5 ltr 
Hydraulic system  12.4 U.S. gal  47.0 ltr 
Front axle  3.7 U.S. gal  14.0 ltr 
Rear axle  3.8 U.S. gal  14.5 ltr 
Transfer case  0.9 U.S. gal  3.5 ltr 

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