WA800-3

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Engine   
Model    Komatsu SAA12V140E-3 
Type    Water-cooled, 4 cycle 
Aspiration    Turbocharged, air-to-air aftercooled 
Number of cylinders    12 
Bore x stroke  5.51'' x 6.50''  140 mm x 165 mm 
Piston displacement  1,860 in³  30.48 ltr 
Governor    all-speed, electronic 
Flywheel horsepower     
SAE J1995 - Gross  853 HP  636 kW 
ISO 9249/SAE J1349 - Net  808 PS  603 kW 
Rated rpm    2000 rpm 
Fan drive method for radiator cooling    Mechanical 
Fuel system    Direct injection 
Lubrication system     
Method    Gear pump, force-lubrication 
Filter    Full-flow and bypass combined 
Air cleaner    Dry type with automatic dust ejector and pre-cleaner, cyclopac with vacuator 
EPA Tier 2 emissions certified.     
 
Transmission   
Torque converter - Type    3-element, single-stage, single-phase 
Transmission - Type    Full-powershift, planetary type 
Travel Speed*     
1st Forward  4.3 mph  7.0 km/h 
1st Reverse  4.4 mph  7.1 km/h 
2nd Forward  7.6 mph  12.3 km/h 
2nd Reverse  7.7 mph  12.4 km/h 
3rd Forward  17.4 mph  28.0 km/h 
3rd Reverse  17.6 mph  28.3 km/h 
*Measured with 45/65-45, 46PR (L-5)     
 
Axles & Final Drives   
Drive system    Four-wheel drive 
Front    Fixed, full-floating 
Rear    Center-pin support, full-floating, 22° total oscillation 
Reduction gear    Spiral bevel gear 
Differential gear    Straight bevel gear 
Final reduction gear    Planetary gear, single reduction, oil bath 
 
Brakes   
Service brakes    Hydraulically actuated, wet disc brakes actuate on four wheels 
Parking brake    Dry disc brake 
Secondary brake    Parking brake is commonly used 
 
Steering System   
Type    Articulated type, full-hydraulic power steering 
Steering angle    40° each direction 
Minimum turning radius at the center of outside tire  30'2"  9200 mm 
 
Hydraulic System   
Steering system:     
Hydraulic pump    Piston pump 
Capacity / at rated rpm  81 U.S. gal/min  307 ltr/min 
Relief valve setting  4,550 psi  31.4 MPa 320 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders   
Bore x stroke  6.3" x 19.8"  160 mm x 503 mm 
Loader control:     
Hydraulic pump    Piston pump 
Capacity / at rated rpm  107 U.S. gal/min  405 ltr/min 
Relief valve setting  4,550 psi  31.4 MPa
320 kgf/cm² 
Hydraulic cylinders:     
Type    Double-acting, piston type 
Number of cylinders—bore x stroke:     
Boom cylinder - 2  10.2" x 53.9"  260 mm x 1368 mm 
Bucket cylinder - 1  11.8" x 35.7"  300 mm x 906 mm 
Control valve    Spool type 
Control positions:     
Boom    Raise, hold, lower, and float 
Bucket    Tilt-back, hold, and dump 
Hydraulic cycle time (rated load in bucket):     
Raise    11.2 sec 
Dump    2.0 sec 
Lower (Empty)    4.8 sec 
 
ROPS and Cab   
The cab is mounted on viscous damping mounts and is well insulated. 
 
Service Refill Capacities   
Cooling system  89.0 U.S. gal  337 ltr 
Fuel tank  410.8 U.S. gal  1555 ltr 
Engine  34.3 U.S. gal  130 ltr 
Hydraulic system  191.5 U.S. gal  725 ltr 
Axle (each front and rear)  95.1 U.S. gal  360 ltr 
Torque converter and transmission  37.0 U.S. gal  140 ltr 

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