Engine
For greater efficiency during long pushes, the lock-up mode allows the system to automatically engage the torque converter lock-up clutch. Locking the torque converter transmits all the engine power directly to the transmission increasing ground speed, thus achieving efficiencies equal to a direct drive.
The result is more efficient use of the engine power, less fuel consumption and faster cycles.
- Model - Komatsu SA12V170E
- Type - 4-stroke water cooled direct injection
- Aspiration - Turbocharged after cooled
- 12 cylinders
- Engine size - 2,825 cubic inches or 46.3 liter or 46,300cc
- Horsepower - 1,150
TORQ-FLOW Transmission
Komatsu TORQ-FLOW transmission consists of an air-cooled, 3-element, 1-stage, 1-phase torque converter with lock-up clutch and a planetary gear, multiple-disc clutch transmission which is actuated by ECMV (Electronic Control Modulation Valve) and force-lubricated for optimum heat dissipation.
Final Drive
- 1st forward.....2.3 mph....3.7 kmh.....1st Reverse.....2.7mph......4.3kmh
- 2nd forward....4.1 mph....6.6 kmh.....2nd Reverse....4.8 mph....7.7 kmh
- 3rd forward....7.5 mph....11.6 kmh...3rd Reverse.....8.3 mph....13.3 kmh
Triple-reduction final drive uses two-stage spur and single-stage planetary gears (five) to minimize transmission of shock to power train components. Segmented sprocket rims are bolt-on type for easy in-the-field replacement.
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