WA500-7

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Engine   
Model    Komatsu SAA6D140E-6* 
Type    Water-cooled, 4-cycle 
Aspiration    Turbo-charged, after-cooled, cooled EGR 
Number of cylinders   
Bore x Stroke  5.51" x 6.50"  140 mm x 165 mm 
Piston displacement  930 in³  15.24 ltr 
Govenor    All-speed, electronic 
Horsepower     
SAE J1995 - Gross  357 HP  266 kW 
ISO 9249 / SAE J1349 - Net  353 HP  263 kW 
Rated rpm    1900 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 4 Interim and EU stage 3B emissions certified     
Transmission   
Torque converter    3-elements, 1-stage, 2-phase 
Transmission    Full-powershift, planetary type 
Travel speed: (Measured with 23.5-25 tires)  Forward  Reverse 
1st gear  4.7 mph
7.5 km/h 
5.3 mph
8.5 km/h 
2nd gear  8.0 mph
12.9 km/h 
8.0 mph
12.9 km/h 
2nd gear (Lock-up clutch ON)  8.1 mph
13.1 km/h 
8.1 mph
13.0 km/h 
3rd gear  13.8 mph
22.2 km/h 
15.3 mph
24.7 km/h 
3rd gear (Lock-up clutch ON)  14.7 mph
23.7 km/h 
16.5 mph
26.6 km/h 
4th gear  22.1 mph
35.5 km/h 
23.6 mph
38.0 km/h 
4th gear (Lock-up clutch ON)  23.2 mph
37.3 km/h 
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, 24° total oscillation 
Reduction gear    Spiral bevel gear 
Differential gear    Conventional type 
Final reduction gear    Planetary gear, single reduction 
Brakes   
Service brakes    Hydraulically actuated, wet disc brakes actuate on four wheels 
Parking brake    Wet disc brake 
Emergency brake    Parking brake is commonly used 
Steering System   
Type    Articulated type, fully-hydraulic power steering 
Steering angle    36° (40° to max end stop) 
Minimum turning radius at the center of outside tire  23' 2"  7050 mm 
Hydraulic System   
Steering system:     
Hydraulic pump    Piston pump 
Capacity at rated rpm  31.7 U.S. gal/min  120 ltr/min 
Relief valve setting  3,555 psi  24.5 MPa / 250 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type. 
Number of cylinders   
Bore x stroke  3.9" x 19.1"  100 mm x 486 mm 
Loader control:     
Hydraulic pump    Piston pump 
Capacity at rated rpm  84.8 U.S gal/min  320 ltr/min 
Relief valve setting  4,980 psi  34.3 MPa / 350 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type. 
Number of cylinders:  Bore x Stroke:  Bore x Stroke: 
Boom cylinder / 2  6.3" x 35.4"  160 mm x 898 mm 
Bucket cylinder / 1  7.3" x 26.6"  185 mm x 675 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    7.2 sec 
Dump    1.7 sec 
Lower (Empty)    4.2 sec 
Service Refill Capacities   
Cooling system  35.1 U.S. gal  133 ltr 
Fuel tank  124.9 U.S. gal  473 ltr 
Engine  9.8 U.S. gal  37 ltr 
Hydraulic system  89.0 U.S. gal  337 ltr 
Axle (each front and rear)  25.1 U.S. gal  95 ltr 
Torque converter and transmission  18.8 U.S. gal  71 ltr 

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