WA500-6

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Engine   
Model    Komatsu SAA6D140E-5 
Type    Water-cooled, 4-cycle. 
Aspiration    Turbocharged, aftercooled, 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 
Governor    all-speed, electronic 
Horsepower:     
SAEJ1995 / Gross  357 HP  266 kW 
ISO 9249 / SAEJ1349* / Net  353 HP  263 kW 
Hydraulic fan at maximum spped  332 HP  248 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 
Transmission   
Torque converter Type    3-element, single-stage, double-phase 
Transmission Type    Full-powershift, planetary type 
Travel speed measured with 29.5-25 tires:  Forward  Reverse 
  ( ): Lock-up clutch ON   
1st  4.8 mph
7.7 km/h 
5.3 mph
8.6 km/h 
    (9.9mph
15.9 km/h) 
2nd  7.8 mph
12.5 km/h 
8.1 mph
13.0 km/h 
  (8.8 mph / 14.2 km/h)  (9.9 mph / 15.9 km/h) 
3rd  13.9 mph
22.3 km/h 
15.4 mph
24.8 km/h 
  (14.5 mph
23.4 km/h) 
(16.3 mph
26.2 km/h) 
4th  21.7 mph
34.9 km/h 
23.3 mph
37.5 km/h 
  (24.1 mph
38.8 km/h) 
(26.9 mph
43.2 km/h) 
Axles and Final Drives   
Drive system    Four-wheel drive 
Front    Fixed, full-floating 
Rear    Center-pin support, full-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 
Steering System   
Type    Articulated type, full-hydraulic power steering 
Steering angle    40° each direction. 
Minimum turning radius at the center of outside tire  21'1"  6430 mm 
Hydraulic System   
Steering system:     
Hydraulic pump    Piston pump 
Capacity at max. control flow  31.7 U.S. gal/min  120 ltr/min 
Relief valve setting  3,550 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  32 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  31.7 U.S. gal  120 ltr 
Fuel tank  124.9 U.S. gal  473 ltr 
Engine  11.9 U.S. gal  45 ltr 
Hydraulic system  89.0 U.S. gal  337 ltr 
Axle - Front  22.9 U.S. gal  87 ltr 
Axle - Rear  21.4 U.S. gal  81 ltr 
Torque converter and transmission  20.0 U.S. gal  76 ltr 

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