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Model    Komatsu SAA6D140E-5 
Type    4-cycle, water-cooled, direct injection 
Aspiration    Turbocharged, air-to-air aftercooled, cooled EGR 
No. 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 
SAE J1995 - Gross  452 HP  337 kW 
ISO 9249 / SAE J1349 - Net  449 HP  335 kW 
Hydraulic fan at maximum speed - Net  410 HP  306 kW 
Rated rpm    2000 rpm 
Fan drive type    Hydraulic 
Lubrication system:     
Method    Gear pump, force lubrication 
Filter    Full-flow 
TORQFLOW Transmission   
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase, torque converter with lockup clutch and a planetary gear, multiple-disc clutch transmission which is hydraulically-actuated and force-lubricated for optimum heat dissipation. Gearshift lock lever and neutral safety switch help prevent accidental starts. 
Gear  Forward  Reverse 
1st  2.2 mph / 3.6 km/h  2.9 mph / 4.7 km/h 
2nd  4.2 mph / 6.7 km/h  5.4 mph / 8.7 km/h 
3rd  7.0 mph / 11.2 km/h  9.3 mph / 14.9 km/h 
Final Drives   
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket rims are bolt-on for easy replacement. 
Steering System   
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the PCCS lever to the left to make a left turn.
Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake. 
Minimum turning radius  12'10  3.9 m 
Suspension    Oscillating equalizer bar and pivot shaft 
Track roller frame    Cylindrical, high-tensile-strength steel construction 
Rollers and idlers    Lubricated track rollers 
K-Bogie undercarriage    Lubricated track rollers are resiliently mounted to the roller frame with a series of K-Bogies whose oscillating motion is cushioned by rubber pads. 
Extreme service track shoes    Lubricated tracks. Unique seals help prevent entry of foreign abrasive material into pin-to-bushing clearances to provide extended service life. Track tension is easily adjusted with a grease gun. 
Number of shoes (each side)    39 
Grouser height:     
Single grouser  3.5''  88 mm 
Shoe width (standard)  24''  610 mm 
Ground contact area  6,580 in²  42456 cm² 
Ground pressure (tractor only)  12.7 psi  87.3 kPa / 0.89 kg/cm² 
No. of track rollers   
No. of carrier rollers   
Extreme service shoes  24"  610 mm 
Additional weight  0 lb  0 kg 
Ground contact area  6,580 in²  42456 cm² 
SIGMADOZER™ Strengthened Dual tilt Ground pressure**  17.2 psi  119 kPa / 1.21 kg/cm² 
Semi-U tilt dozer Ground pressure**  16.6 psi  115 kPa / 1.17 kg/cm² 
Extreme service shoes  28''  710 mm 
Additional weight  1,260 lb  570 kg 
Ground contact area  7,659 in²  49416 cm² 
SIGMADOZER™ Strengthened Dual tilt Ground pressure**  15.0 psi  103 kPa / 1.05 kg/cm² 
Semi-U tilt dozer Ground pressure**  14.5 psi  100 kPa / 1.02 kg/cm² 
Extreme service shoes  30''  760 mm 
Additional weight  1,870 lb  850 kg 
Ground contact area  8,199 in²  52896 cm² 
SIGMADOZER™ Strengthened Dual tilt Ground pressure**  14.1 psi  97 kPa / 0.99 kg/cm² 
Semi-U tilt dozer Ground pressure**  13.7 psi  94 kPa / 0.96 kg/cm² 
** Ground pressure based on tractor, cab, ROPS, operator, giant ripper, standard equipment, and shoe and blade shown in the chart.     
Coolant and Lubricant Capacity (refill)   
Fuel tank  222 U.S. gal  840 ltr 
Coolant  26.4 U.S. gal  100 ltr 
Engine  13.7 U.S. gal  52.0 ltr 
Torque converter, transmission, bevel gear, and steering system  23.8 U.S. gal  90 ltr 
Final drive (each side)  10.6 U.S. gal  40 ltr 
Operating Weight   
Tractor weight - Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.  83,070 lb  37680 kg 
Operating weight - Including Strengthened Dual tilt SIGMADOZER™, giant ripper, steel cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.  113,600 lb  51530 kg 
Ground pressure  17.2 psi  119 kPa / 1.21 kg/cm² 
Hydraulic System   
Closed-center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation. 
Hydraulic control units:    All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 230 ltr/min / 60.8 U.S. gal/min at rated engine rpm. 
Relief valve setting  3,980 psi  27.5 MPa / 280 kg/cm² 
Control valves:    Spool control valves for SIGMADOZER™, Semi-U tilt and Full-U tilt dozer 
Blade lift    Raise, hold, lower, and float. 
Blade tilt    Right, hold, and left. 
Note:    Additional control valve required for variable digging angle multi-shank ripper and giant ripper. 
Ripper lift    Raise, hold, and lower. 
Ripper tilt    Increase, hold, and decrease. 
Hydraulic cylinders    Double-acting, piston. 
Hydraulic cylinders/ Number of cylinders:  Bore  Bore 
Blade lift / 2  4.72''  120 mm 
Blade tilt / 1(Single tilt), 2(Dual tilt)  7.09''  180 mm 
Ripper lift / 2  7.09''  180 mm 
Ripper tilt / 2  6.30''  160 mm 
Hydraulic oil capacity (refill):     
SIGMADOZER™, Semi-U dozer, or U dozer  34.3 U.S. gal  130 ltr 
Ripper equipment (additional volume):     
Giant ripper  10.0 U.S. gal  38 ltr 
Multi-shank ripper  10.0 U.S. gal  38 ltr 

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