Specifications
Engine
| Model | Komatsu SAA4D107E-2* | |
| Type | Water cooled, 4-cycle, direct injection | |
| Aspiration | Turbocharged, air-to-air aftercooled | |
| Number of cylinders | 4 | |
| Bore | 4.21" | 107 mm |
| Stroke | 4.88" | 124 mm |
| Piston displacement | 272 in³ | 4.46 ltr |
| Horsepower: | ||
| Gross (SAEJ1995) @ 2100 rpm | 121 HP | 90 kW |
| Net (ISO 9249/SAEJ1349) @ 2100 rpm | 115 HP | 86 kW |
| Governor | All speed control, electronic | |
| Lubrication system : | ||
| Method | Gear pump, force-lubrication | |
| Filter | Full-flow | |
| Air cleaner | Air cleaner, double element and auto dust evacuator | |
| *EPA Tier 4 Interim and EU stage 3B emissions certified |
Hydraulic System
| Type | HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valve | |
| Main pump: | ||
| Type | Variable capacity piston type | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits | |
| Maximum flow | 79 gal/min | 298 ltr/min |
| Hydraulic motors: | ||
| Travel | 2 x piston motor with parking brake | |
| Swing | 1 x axial piston motor with swing holding brake | |
| Relief valve setting: | ||
| Implement circuits | 5,450 psi | 380 kgf/cm² / 37.3 MPa |
| Swing circuit | 4,195 psi | 295 kgf/cm² / 28.9 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 | 4.3" x 46.3" x 3.0" | 110 mm x 1175 mm x 75 mm |
| Arm / 1 | 4.7" x 52.8" x 3.3" | 120 mm x 1342 mm x 85 mm |
| Bucket / 1 | 4.1" x 40.4" x 2.8" | 105 mm x 1027 mm x 70 mm |
Drives and Brakes
| Steering control | Two levers with pedals | |
| Drive method | Fully hydrostatic | |
| Maximum drawbar pull | 35,164 lb | 15950 kgf / 156 kN |
| Gradeability | 35° | 70% |
| Maximum travel speed: | ||
| High | 3.4 mph | 5.5 km/h |
| Low (Auto-Shift) | 1.9 mph | 3.0 km/h |
| Service brake | Hydraulic lock | |
| Parking brake | Mechanical disc |
Swing System
| Drive method | Hydraulic motor | |
| Swing reduction | Planetary gear | |
| Swing circle lubrication | Grease-bathed | |
| Swing lock | Mechanical disc brake | |
| Swing speed | 12.0 rpm | |
| Swing torque | 31,314 ft lbs | 4331 kg•m |
Undercarriage
| Center frame | X-frame leg | |
| Track frame | Box-section | |
| Track type | Sealed | |
| Track adjuster | Hydraulic | |
| Number of shoes (each side) | 44 | |
| Number of carrier rollers (each side) | 2 | |
| Number of track rollers (each side) | 7 |
Coolant & Lubricant Capacity (refilling)
| Fuel tank | 79.25 U.S. gal | 300 ltr |
| Coolant | 4.9 U.S. gal | 23.5 ltr |
| Engine | 4.8 U.S. gal | 18 ltr |
| Final drive, each side | 1.43 U.S. gal | 5.4 ltr |
| Swing drive | 1.2 U.S. gal | 4.5 ltr |
| Hydraulic tank | 32.0 U.S. gal | 121 ltr |
Operating Weight (APROXIMATE)
Operating weight including 5150 mm / 16'11" one-piece boom,
2610 mm / 8'7" arm, SAE heaped 0.65 m³ / 0.85 yd³ backhoe bucket,
rated capacity of lubricants, coolant, full fuel tank, operator, and
standard equipment.
| Shoes: | Operating Weight: | Ground Pressure: |
| 24" 600 mm | 38,600 lb 17500 kg | 5.98 psi 0.42 kgf/cm² / 41.2 kPa |
| 28" 700 mm | 39,104 lb 17739 kg | 5.06 psi 0.37 kgf/cm² / 36.2 kP |
Features
Two counterweight options provide improved lifting performance as well as versatility to meet transportation requirements.
New engine and hydraulic pump control technology improves operational efficiency and lowers fuel consumption
by up to 10%.
A powerful Komatsu SAA4D107E-2 engine provides a net output of 86 kW 115 HP. This engine is EPA Tier 4 Interim and EU stage 3B emissions certified.
Komatsu Diesel Oxidation Catalyst (KDOC) reduces particulate matter using 100% passive regeneration.
No DPF is required.
Komatsu Variable Flow Turbocharger provides optimum air flow under all speed and load conditions.
Komatsu's Closed Center Load Sensing (CLSS) hydraulic system provides quick response and smooth operation to maximize productivity.
Enhanced working modes are designed to match engine speed, pump delivery, and system pressure to the application.
Large LCD color monitor panel:
■ 7" high resolution screen
■ Provides "Eco-Guidance" for fuel efficient operation
■ Enhanced attachment control
■ Aux jack and (2) 12V Outlets
■ 7" high resolution screen
■ Provides "Eco-Guidance" for fuel efficient operation
■ Enhanced attachment control
■ Aux jack and (2) 12V Outlets
Rearview monitoring system (standard)
Equipment Management Monitoring System (EMMS) continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting.
Enhanced working environment
■ High back, heated, and airsuspension operator seat
■ Integrated ROPS cab design (ISO 12117-2)
■ Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262)
■ High back, heated, and airsuspension operator seat
■ Integrated ROPS cab design (ISO 12117-2)
■ Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262)
The standard counterweight
increases lifting performance up to 5%, while an optional heavier
counterweight provides up to 15% more lift capacity when compared to the
previous series.
Wide access service doors provide easy access for ground level maintenance.
Guardrails (standard) provide convenient access to the upper structure.
Battery disconnect switch allows a technician to disconnect the power supply before servicing the machine.
Komatsu designed and manufactured components Swing out cooler design provides easy access to service and clean the cooler assembly.
KOMTRAX
equipped machines can send location, SMR and operation maps to a secure
website utilizing wireless technology. Machines also relay error codes,
cautions, maintenance items, fuel levels, and much more.
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