Specifications :
Engine
| Model | Komatsu SAA4D107E-1-A | |
| Type | Water-cooled, 4-cycle, direct injection | |
| Aspiration | Turbocharged and aftercooled | |
| Number of cylinders | 4 | |
| Bore | 4.21'' | 107 mm |
| Stroke | 4.88'' | 124 mm |
| Piston displacement | 272 in³ | 4.46 ltr |
| Horsepower | ||
| SAE J1995 : Gross | 148 HP | 110 kW |
| ISO 9249/SAE J1349 : Net | 139 HP | 104 kW |
| Rated rpm | 2000 rpm | |
| Fan drive type | Mechanical | |
| Governor | All-speed control, electronic. | |
| EPA Tier 3 and EU Stage 3A emission certified |
Hydraulic System
ype . . HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
| Number of selectable working modes | 5 | |
| Main pump: | ||
| Type | Variable displacement piston type | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits | |
| Maximum flow | 116 U.S. gal/min | 439 ltr/min |
| Supply for control circuit | Self-reducing valve | |
| Hydraulic motors: | ||
| Travel | 2 x axial piston motor with parking brake | |
| Relief valve setting: | ||
| Implement circuits | 5,400 psi | 380 kgf/cm²/ 37.3 MPa |
| Travel circuit | 5,400 psi | 380 kgf/cm² / 37.3 MPa |
| Pilot circuit | 470 psi | 33 kgf/cm² / 3.2 MPa |
| Hydraulic cylinders: | ||
| Number of cylinders | Bore x Stroke x Rod Diameter | Bore x Stroke x Rod Diameter |
| Boom / 2 | 4.7" x 52.5" x 3.3" | 120 mm x 1334 mm x 85 mm |
| Arm / 1 | 5.3" x 58.7" x 3.7" | 135 mm x 1490 mm x 95 mm |
| Bucket for 2.41 m 7'11" and 2.93 m 9'7" Arm / 1 | 4.5" x 44.1" x 3.2" | 115 mm x 1120 mm x 80 mm |
Swing System
| Drive method | Electric drive | |
| Swing reduction | Planetary gear | |
| Swing circle lubrication | Grease-bathed | |
| Service brake | Electric brake | |
| Holding brake/Swing lock | Mechanical disc brake | |
| Swing speed | 12.4 rpm | |
| Swing torque | 50,920 ft. lbs | 7040 kg•m |
Drives and Brakes
| Steering control | Two levers with pedals | |
| Drive method | Hydrostatic | |
| Maximum drawbar pull | 40,120 lb | 178 kN / 18200 kg |
| Gradeability | 35° | 70% |
| Maximum travel speed: (Auto-Shift) | ||
| High | 3.4 mph | 5.5 km/h |
| Mid | 2.5 mph | 4.1 km/h |
| Low | 1.9 mph | 3.0 km/h |
| Service brake | Hydraulic lock | |
| Parking brake | Mechanical disc brake |
Undercarriage
| Center frame | X-frame | |
| Track frame | Box-section | |
| Seal of track | Sealed track | |
| Track adjuster | Hydraulic | |
| Number of shoes | 49 each side | |
| Number of carrier rollers | 2 each side | |
| Number of track rollers | 9 each side |
Coolant and Lubricant Capity (refilling)
| Fuel tank | 105.7 U.S. gal | 400 ltr |
| Coolant (Engine) | 4.6 U.S. gal | 17.3 ltr |
| (Hybrid) | 1.4 U.S. gal | 5.2 ltr |
| Final drive, each side | 0.9 U.S. gal | 3.3 ltr |
| Swing drive | 1.9 U.S. gal | 7.1 ltr |
| Swing motor | 0.4 U.S. gal | 1.6 ltr |
| Generator motor | 1.6 U.S. gal | 6.0 ltr |
| Hydraulic tank | 35.7 U.S. gal | 135 ltr |
Operating Weight (Aproximate)
Operating weight including 5700 mm / 18'8" one-piece boom,
2925 mm / 9'7" arm, SAE heaped 0.80 m³ / 1.05 yd³ backhoe bucket,
rated capacity of lubricants, coolant, full fuel tank, operator, and
standard equipment.
| HB215LC-1 Shoes | 31.5" | 800 mm |
| Operating Weight | 48,175 lb | 21850 kg |
| Ground Pressure | 4.9 psi | 0.35 kg/cm² 33.9 kPa |
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