D71EX-24
رقم القطعة: KOMATSU-D71EX-24
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الوصف
D71EX-24
المواصفات
| Horsepower (HP) | 237 HP @ 2,200 rpm |
|---|---|
| Horsepower (kW) | 177 k @ 2 200 rpm |
| Control valve | 3-spool control valve for power angle tilt dozer |
| Operating weight (kg) | 22 600 |
| Operating weight (lbs) | 49,825 |
| Blade capacity (m^3) | 4.4 |
| Blade capacity (yd^3) | 5.8 |
| Suspension | Oscillating-type with equalizer bar and pivot shafts |
| Track roller frame | Monocoque, large section, durable construction |
| Rollers and idlers | Lubricated track rollers |
| Type of shoes (standard) | Single grouser |
| Number of track rollers (each side) | 8 |
| Number of shoes (each side) | 45 |
| Grouser height (mm) | 65 |
| Grouser height (in) | 2.6 |
| Shoe width (standard)(in) | 24 |
| Shoe width (standard)(mm) | 610 |
| Ground contact area (ft2) | 43 |
| Ground contact area (cm^2) | 39 960 |
| Ground pressure (with standard shoe)(ISO 16754)(psi) | 6.3 |
| Ground pressure (with standard shoe)(ISO 16754)(kpa) | 43 |
| Track gauge (mm) | 2 230 |
| Track gauge (ft) | 7 ft. 3 in |
| Length of track on ground (ft) | 10 ft. 8.9 in |
| Length of track on ground (mm) | 3 275 |
| Engine model | Komatsu SAA6D114E-6* |
| Dozers 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 (in) | 4.5 x 5.7 |
| Bore x stroke (mm) | 114 x 144.5 |
| Piston displacement (L) | 8.85 |
| Piston displacement (in^3) | 540 |
| Governor | All-speed and mid-range, electronic |
| Footnote | *EPA Tier 4 Final emissions certified |
| SAEJ1995 - Gross (kW) | 179 |
| SAEJ1995 - Gross (HP) | 240 |
| ISO 9249 / SAE J1349 - Net (HP) | 237 |
| ISO 9249 / SAE J1349 - Gross (kW) | 177 |
| Rated rpm | 2,100 |
| Fan drive type | Hydraulic |
| Filter | Full-flow |
| Method | Gear pump, force lubrication |
| Operator weight (approximate) | Operating weight: Including PAT dozer, ROPS (ISO 3471) cab, operator, standard equipment, rated capacity of lubricant, coolant and full fuel tank. |
| Tractor weight (kg) | 21 350 |
| Tractor weight (lbs) | 47,969 |
| Tractor weight inclusions | Including ROPS (ISO 3471) cab, U frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment. |
| Final drive features | In-shoe mounted axial piston type travel motors with integrated two-stage planetary gear reduction. Compact in-shoe mount can reduce risk of damage by debris. Bolt-on sprocket for easy displacement. |
| Hydrostatic transmission features | Dual-path, hydrostatic transmission provides infinite speed changes up to 9.0 km/h 5.6 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch. |
| 1st forward (kph) | 0 - 3.8 |
| 1st forward (mph) | 0 - 2.4 |
| 1st reverse (mph) | 0 - 2.8 |
| 1st reverse (kph) | 0 - 4.5 |
| 2nd forward (kph) | 0 - 6.5 |
| 2nd forward (mph) | 0 - 4 |
| 2nd reverse (mph) | 0 - 4.7 |
| 2nd reverse (kph) | 0 - 7.5 |
| 3rd forward (mph) | 0 - 6.8 |
| 3rd forward (kph) | 0 - 11 |
| 3rd reverse (mph) | 0 - 6.8 |
| 3rd reverse (kph) | 0 - 11 |
| Travel speed forward (variable mode) (kph) | 0.8 - 11 |
| Travel speed forward (variable mode) (mph) | 0.5 - 6.8 |
| Travel speed reverse (variable mode) (mph) | 0.5 - 6.8 |
| Travel speed reverse (variable mode) (kph) | 0,8 - 11 |
| Fuel tank (US gal) | 116 |
| Fuel tank (L) | 439 |
| Diesel Exhaust Fluid (DEF) tank (L) | 20 |
| Diesel Exhaust Fluid (DEF) tank (US gal) | 5.3 |
| Coolant (US gal) | 14.4 |
| Coolant (L) | 54.5 |
| Engine oil (L) | 30.5 |
| Engine oil (US gal) | 8.1 |
| Final drive (US gal) | 2.6 |
| Final drive (L) | 10 |
| Hydraulic tank (L) | 154 |
| Hydraulic tank (US gal) | 40.7 |
| Steering system features | PCCS joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it backward reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation. HST eliminates steering clutches and brakes, providing smooth, powerful turns. Fully electronic control enables smooth operation. The PCCS utilizes shift buttons to increase and decrease speed. |
| Minimum turning radius (in) | 122 |
| Minimum turning radius (m) | 3.1 |
| Hydraulic fan at maximum speed - net (HP) | 213 |
| Hydraulic fan at maximum speed - net (kW) | 159 |
| Hydraulic system features | Closed-Center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation. |
| Hydraulic control unit (U.S. gal/min) | All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 62.3 US gpm at rated engine rpm. |
| Hydraulic control unit (ltr/min) | All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 235 L/min at rated engine rpm. |
| Relief valve setting (kg/cm^2) | 294 |
| Relief valve setting (psi) | 4,177 |
| Relief valve setting (MPa) | 28.8 |
| Power angle tilt dozer (L) | 154 |
| Power angle tilt dozer (US gal) | 40.7 |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Blade angle | Right, hold, and left |
| Ripper lift | Raise, hold and lower |
| Blade tilt /1 (in) | 5.1 |
| Blade tilt /1 (mm) | 130 |
| Blade lift / 2 (mm) | 120 |
| Blade lift / 2 (in) | 4.7 |
| Blade angle / 2 (mm) | 110 |
| Blade angle / 2 (in) | 4.3 |
| Hydraulic cylinders | Double-acting, piston type |
| Lubricated tracks | Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is adjusted easily with grease gun. |
| 2.5th (kph) | 0 - 9.3 |
| 2.5th (mph) | 0 - 5.8 |
| 2.5th forward (mph) | 0 - 5.2 |
| 2.5th forward (kph) | 0 - 8.4 |
