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| Engine |
| Direct injection fuel system. All-speed mechanical governor. Forced lubrication driven by gear pump. Full-flow for lube purification. Dry-type air cleaner with automatic dust evacuator and dust indicator. 7,5 kW/24 V electrical starter motor. 24 V/35 kW alternator. 140 Ah/2 x 12 V batteries. |
| Model | Komatsu S6D125E-2 |
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| Type | 4-stroke cycle, water-cooled, emissionized, direct injection, turbocharged engine |
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| N° of cylinders | 6 |
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| Bore x stroke | 150 x 135 mm |
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| Piston displacement | 11,04 l |
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| Flywheel horsepower | 142 kW 190 HP * |
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| Net. maximum torque | 100 kg 981 Nm |
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| * | Net flywheel horsepower output for standard engine (SAE J1349) including air cleaner, alternator (not charging), water pump, lubricating oil pump, fuel pump, muffler, and fan. |
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| Transmission |
| Komatsu's TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase torque converter and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. |
| Joystick control of gears (3 forward and 3 reverse) and directional steering changes. Gearshift lock lever and neutral safety switch prevent machine from accidental starts. |
| Travel speed | |
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| 1st forward | 0 - 3,9 km/h |
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| 1st reverse | 0 - 5,0 km/h |
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| 2 nd forward | 0 - 6,8 km/h |
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| 2 nd reverse | 0 - 8,6km/h |
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| 3 rd forward | 0 - 10,6 km/h |
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| 3 rd reverse | 0 -13,4 km/h |
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| Drive System |
| Spur gear double-reduction, final drives increase tractive effort. Segmented sprockets are bolt-on for easy in-the-field replacement. |
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| Steering |
| The Hydrostatic Steering System (HSS) is comprised of a hydraulic pump and motor. This design allows for counter-rotation under certain ground conditions. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically-released. The directional and gear control joystick lock lever also applies the brakes. |
| Joystick controls for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the joystick to the left to make a left turn. Tilt it to the right for a right turn. |
| Minimum turning radius | 2,7 m |
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| As measured by track marks on ground. | |
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| Undercarriage |
| Suspension | Oscillation with equalizer bar and forward mounted pivot shafts |
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| Track roller | Monocoque, large section, durable construction |
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| Number of carrier rollers (for each side) | 2 |
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| Track rollers | Lubricated tracks. Unique dust seals for preventing entry of foreign abrasives into pin-to-bushing clearances for extended service. Track tension is easily adjusted with a grease gun. |
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| Number of track rollers (for each side) | 8 |
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| Number of shoes (for each side) | 45 |
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| Grouser height | 65 mm |
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| Standard shoe width | 915 mm |
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| Ground contact area | 60 115 cm² |
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| Ground pressure | 0,28 kgf/cm² |
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| Track gauge | 2050 mm |
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| Length of track on ground | 3285 mm |
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| Capacities |
| Coolant | 52 l |
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| Fuel tank | 406 l |
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| Engine oil | 38 l |
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| Damper | 1,7 l |
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| Transmission, bevel gear and steering system | 48 l |
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| Final drive (each side) | 27 l |
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| Weight |
| Operating weight: Including semi U-tilt dozer, ROPS canopy, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
| Tractor weight: Including rated capacity of lubricant, coolant, ROPS, full fuel tank, operator, and standard equipment. |
| Operating weight | 19 125 kg |
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| Tractor weight | 15 620 kg |
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| Hydraulic System |
| Hydraulic control unit: All spool control valves externally mounted beside the hydraulic tank. Closed-center Load Sensing System (CLSS) designed for precise and responsive control and for efficient simultaneous operation. |
| Relief valve setting | 20,6 MPa, 210 kg/cm² |
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| Hydraulic cylinders | Double-acting, piston |
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| Blade lift | |
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| N° of cylinders | 2 |
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| Bore | 95 mm |
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| Blade tilt | |
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| N° of cylinders | 1 |
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| Bore | 140 mm |
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| Blade angle | |
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| N° of cylinders | 1 |
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| Bore | 140 mm |
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| Hydraulic oil capacity (refilling) | |
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| Power angle tilt dozer | 55,0 l |
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| Control valves | Spool control valve for power tilt dozer |
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| Blade lift | Raise,hold, lower and float |
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| Blade tilt | right, hold and left |
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| Blade angle | right, hold and left |
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| Dozer equipment |
| Use of high tensile steel moldboard for strengthened blad construction |
| Overall length with dozer | 5520 mm |
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| Blade width x height | 3970 mm x 1100mm |
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| Blade capacity | 3,69 m³ |
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| Max. lifting above ground level | 1105 mm |
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| Maximum tilt adjustment | 450 mm |
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| Additional weight | 2030 kg |
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| Maximum drop below ground | 540 mm |
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