Your big jobs demand a big dozer. 350+ horsepower, massive blade capacity with semi-U and full U blades, automatic lockup torque converter, and low drive K-bogie suspended undercarriage designed for maximum traction and smooth ride when dozing or ripping.
| Model | Komatsu SAA6D140E-7** |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
| Number of cylinders | 6 |
| Bore x stroke | 140 x 165 mm |
| Piston displacement | 15.24 L |
| Governor | Mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 268 kW |
| ISO 9249 / SAE J1349* - Net | 264 kW |
| Rated rpm | 1 900 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| *Net horsepower at the maximum speed of radiator cooling fan: 239 kW | |
| **EPA Tier 4 Final emissions certified |
| Model | Komatsu SAA6D140E-7** |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
| Number of cylinders | 6 |
| Bore x stroke | 5.51 x 6.50 in |
| Piston displacement | 930 in³ |
| Governor | Mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 360 HP |
| ISO 9249 / SAE J1349* - Net | 354 HP |
| Rated rpm | 1,900 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| *Net horsepower at the maximum speed of radiator cooling fan: 320 HP | |
| **EPA Tier 4 Final emissions certified |
Komatsu's automatic TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase, torque converter with lockup clutch, and a planetary gear, multipledisc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Equipped with gearshift lock lever and neutral safety switch.
| Travel speed: | |
| 1st Gear forward | 3.8 kph |
| 1st Gear reverse | 4.6 kph |
| 2nd Gear forward | 5.6 kph |
| 2nd Gear reverse | 6.8 kph |
| 3rd L Gear forward | 7.5 kph |
| 3rd L Gear reverse | 9.2 kph |
| 3rd Gear forward | 11.6 kph |
| 3rd Gear reverse | 14.0 kph |
Komatsu's automatic TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase, torque converter with lockup clutch, and a planetary gear, multipledisc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Equipped with gearshift lock lever and neutral safety switch.
| Travel speed: | |
| 1st Gear forward | 2.4 mph |
| 1st Gear reverse | 2.9 mph |
| 2nd Gear forward | 3.5 mph |
| 2nd Gear reverse | 4.2 mph |
| 3rd L Gear forward | 4.7 mph |
| 3rd L Gear reverse | 5.7 mph |
| 3rd Gear forward | 7.2 mph |
| 3rd Gear reverse | 8.7 mph |
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. Tilt it to the right for a right turn.
Hydrostatic steering system (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counter-rotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gearshift lock lever also applies parking brakes.
| Minimum turning radius | 2.14 m |
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 left to make a left turn. Tilt it to the right for a right 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 | 6 ft. 6 in |
Suspension: Oscillation-type with equalizer bar and forward mounted pivot shafts
Track roller frame: Monocoque, high-tensilestrength steel construction
K-Bogie undercarriage
Lubricated track rollers are resiliently mounted the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
Track shoes
Lubricated tracks. Unique dust seals for preventing entry of foreign abrasives into pin-to-bushing clearance for extended service. Track tension easily adjusted with grease gun.
| Number of shoes (each side) | 42 |
| Grouser height | 80 mm |
| Shoe width (standard/maximum) | 610 mm / 710 mm |
| Ground contact area | 39 955 cm² |
| Ground pressure (tractor only) | 80.3 kPa / 0.82 kg/cm² |
| Number of track rollers (each side) | 7 |
| Number of carrier rollers (each side) | 2 |
Suspension: Oscillation-type with equalizer bar and forward mounted pivot shafts
Track roller frame: Monocoque, high-tensilestrength steel construction
K-Bogie undercarriage
Lubricated track rollers are resiliently mounted the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
Track shoes
Lubricated tracks. Unique dust seals for preventing entry of foreign abrasives into pin-to-bushing clearance for extended service. Track tension easily adjusted with grease gun.
| Number of shoes (each side) | 42 |
| Grouser height | 3.1 in |
| Shoe width (standard/maximum) | 24 in / 28 in |
| Ground contact area | 6,193 in² |
| Ground pressure (tractor only) | 11.6 psi |
| Number of track rollers (each side) | 7 |
| Number of carrier rollers (each side) | 2 |
| Fuel tank | 625 L |
| Coolant | 104 L |
| Engine oil | 37 L |
| Damper | 1.5 L |
| Transmission, bevel gear, and steering system | 90 L |
| Final drive (each side) | 31 L |
| DEF tank | 39 L |
| Hydraulic oil capacity | 95 L |
| Fuel tank | 165 US gal |
| Coolant | 27.5 US gal |
| Engine oil | 9.8 US gal |
| Damper | 0.4 US gal |
| Transmission, bevel gear, and steering system | 23.8 US gal |
| Final drive (each side) | 8.2 US gal |
| DEF tank | 10.3 US gal |
| Hydraulic oil capacity | 25.1 US gal |
| Tractor weight Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment (including ROPS cab). |
632 700 kg |
| Operating weight Including strengthened SIGMADOZER, giant ripper, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
40 506 kg |
| Ground pressure | 99.5 kPa / 1.01 kg/cm² |
| Tractor weight Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment (including ROPS cab). |
72,100 lbs. |
| Operating weight Including strengthened SIGMADOZER, giant ripper, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
89,300 lbs. |
| Ground pressure | 14.4 psi |
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted beside the hydraulic tank.
Variable piston pump with capacity (discharge flow) of 325 L/min for steering and 180 L/min for implement at rated engine rpm.
Relief valve setting
. . . for implement 27.5 MPa 280 kg/cm²
. . . for steering 38.2 MPa 390 kg/cm²
| Control valves: | ||
| Spool control valve for SIGMADOZER, Semi-U tilt dozer and Full-U tilt dozer. | ||
| Positions: | Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left | |
| Additional control valve required for variable digging angle multi-shank ripper and giant ripper. | ||
| Positions: | Ripper lift | Raise, hold, and lower |
| Ripper tilt | Increase, hold, and decrease | |
| Hydraulic cylinders | Double-acting, piston | |
| Number of cylinders | Bore | |
| Blade Lift / 2 | 110 mm | |
| Blade Tilt (Dual tilt) / 2 | 160 mm | |
| Blade Tilt (Single Tilt) / 1 | 160 mm | |
| Ripper Lift | 180 mm | |
| Ripper Tilt / 1 | 200 mm | |
| Hydraulic oil capacity (refill): | ||
| SIGMADOZER | 95 L | |
| Semi-U dozer | 95 L | |
| Full-U dozer | 95 L | |
| Ripper equipment (additional volume): | ||
| Multi-shank ripper | 37 L | |
| Giant ripper | 37 L |
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted beside the hydraulic tank.
Variable piston pump with capacity (discharge flow) of 85.9 US gal for steering and 47.6 US gal for implement at rated engine rpm.
Relief valve setting
. . . for implement 3,980 psi
. . . for steering 5,550 psi
| Control valves: | ||
| Spool control valve for SIGMADOZER, Semi-U tilt dozer and Full-U tilt dozer. | ||
| Positions: | Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left | |
| Additional control valve required for variable digging angle multi-shank ripper and giant ripper. | ||
| Positions: | Ripper lift | Raise, hold, and lower |
| Ripper tilt | Increase, hold, and decrease | |
| Hydraulic cylinders | Double-acting, piston | |
| Number of cylinders | Bore | |
| Blade Lift / 2 | 4.33 in | |
| Blade Tilt (Dual tilt) / 2 | 6.30 in | |
| Blade Tilt (Single Tilt) / 1 | 6.30 in | |
| Ripper Lift | 7.09 in | |
| Ripper Tilt / 1 | 7.87 in | |
| Hydraulic oil capacity (refill): | ||
| SIGMADOZER | 25.1 US gal | |
| Semi-U dozer | 25.1 US gal | |
| Full-U dozer | 25.1 US gal | |
| Ripper equipment (additional volume): | ||
| Multi-shank ripper | 9.8 US gal | |
| Giant ripper | 9.8 US gal |