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Model    Komatsu SDA12V160 
Type    Water-cooled, 4-cycle 
Aspiration    Turbo-charged, after-cooled 
Number of cylinders    12 
Bore x Stroke  6.26" x 7.48"  159 mm x 190 mm 
Piston displacement  2,746 in  45 ltr 
SAE J1995 / Gross  1,487 HP  1109 kW 
ISO 9249 / SAE J1349 / Net  1,406 HP  1048 kW 
Rated rpm    1,900 rpm 
Fan drive type    Mechanical 
Maximum torque  5,041 lb ft  697 kgm 
Fuel system    Direct injection 
Governor    Electronic control 
Lubrication system:     
Method    Gear pump, force-lubrication 
Filter    Full-flow type 
Air cleaner    Dry type with double elements and pre-cleaned, with dust indicator 
Torque converter    3-elements, 1-stage, 2-phase 
Transmission    Full-automatic, planetary-shaft type 
Speed range    7 speeds forward and 1 reverse 
Lockup clutch    Wet, multiple-disc clutch 
Forward    Torque converter drive 1st and 2nd gear with direct drive lock-up in 1st through 7th 
Reverse    Torque converter drive 
Shift control    Electronic shift control with automatic clutch modulation in all gears 
Maximum travel speed  36 mph  58 km/h 
Rear axles    Full-floating 
Final drive type    Planetary gear 
Differential    2.647 
Planetary    7.235 
Suspension System   
Variable rate, hydropneumatic with integral rebound control.     
Maximum front stroke  14.76''  375 mm 
Maximum rear stroke  4.17"  106 mm 
Rear axle oscillation    +/-9.2 
Steering System   
Type    Fully hydraulic power steering with two double-acting cylinders 
Supplementary steering    Accumulator assist 
Minimum turning radius  40'  12.2 m 
Steering angle (left or right)    41 
Integral 4-post ROPS/FOPS cab structure (meets SAEJ 1040 Apr 88) 
Main Frame   
Type    Box-sectioned structure 
Brakes meet ISO 3450 standard. 
Service brakes:     
Front    Fully hydraulic control, oil-cooled multiple-disc type 
Rear    Fully hydraulic control, oil-cooled multiple-disc type 
Parking brake    Spring applied, oil-released, 3 caliper dry disc mounted on input yoke to differential 
Retarder    Oil-cooled, multiple-disc front and rear brakes act as retarder 
Secondary brake    Manual - push button operated.
Automatically applied prior to hydraulic system pressure dropping below established level. 
Braking surface  24,668 in  159148 cm 
Struck  71 yd  54 m 
Heaped (2:1, SAE)  102 yd  78 m 
Nominal payload  158.9 U.S. tons  144.1 metric tons 
Material    400 Brinell hardness high tensile strength steel (front, sides, and bottom) 
Structure    Flat floor configuration 
Material thickness:     
Bottom  0.75"  19 mm 
Front  0.47"  12 mm 
Sides  0.35"  9 mm 
Target area (inside length x width)  25'2"x 18'9"  7670 mm x 5705 mm 
Dumping angle    45 
Height at full dump  37'6"  11440 mm 
Heating    Exhaust heating 
Hydraulic System   
Hoist cylinder    Two, 3-stage telescopic type 
Relief pressure  2,750 psi  19.0 MPa 193.4 kg/cm 
Hoist time:     
Raise    15 sec 
Lower    15 sec 
Weight (approximate)   
Empty weight  232,144 lb  105300 kg 
Max. gross vehicle weight  550,000 lb  249478 kg 
Not to exceed max. gross vehicle weight, including options, fuel and payload. Empty weight is with 100% fuel and operator.     
Weight distribution:     
Front axle    48.6% 
Rear axle    51.4% 
Front axle    32.8% 
Rear axle    67.2% 
Standard tire    33.00 R51 
Service Refill Capacities   
Fuel tank  560 U.S. gal  2120 ltr 
Engine oil  51 U.S. Gal  193 ltr 
Hydraulic system  238 U.S. gal  900 ltr 
Differential  78 U.S. gal  297 ltr 
Final drives (total)  63.5 U.S. gal  240 ltr 
Transmission  40.5 U.S. gal  153 ltr 

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