Komatsu PC138USLC-10

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Features

Standard additional counterweight provides equal or better lift capacity than most conventional excavators in the same size class.

Rounded cab profile allows the cab to swing within the same swing radius as the counterweight for true tight tail performance.

A powerful Komatsu SAA4D95LE-6 engine provides a net output of 68.8 kW / 93.5 HP. This engine is EPA Tier 4 Interim and EU stage 3B emissions certified.

Variable Flow Turbocharger provides optimum air flow under all speed and load conditions.

Komatsu Diesel Oxidation Catalyst (KDOC) reduces particulate matter using passive regeneration 100% of the time. No active or manual regeneration is required.

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

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
• Integrated ROPS cab design (ISO 12117-2)
• Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262)

Wide access service doors provide easy access for ground level maintenance.

Komatsu designed and manufactured components

New engine and hydraulic pump control technology improves operational efficiency and lowers fuel consumption by up to 7%.

Guardrails (standard) provide convenient access to the upper structure.

Battery disconnect switch allows a technician to disconnect the power supply before servicing the machine.

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.

Specifications

Engine    
Model   Komatsu SAA4D95LE-6*
Type   Water cooled, 4-cycle, direct injection
Aspiration   Turbocharged, and air-to-air aftercooled
Number of cylinders   4
Bore 3.74" 95 mm
Stroke 4.53" 115 mm
Piston displacement 199 in³ 3.26 ltr
Horsepower:    
Gross (SAE J1995) @ 2200 rpm 98 HP 72 kW
Net (ISO 9249/SAE J1349) @ 2200 rpm 93 HP 68 kW
Governor   All speed control, electronic
Lubrication system:    
Method   Gear pump, force-lubrication
Filter   Full-flow
Air cleaner   Dry type with double elements and auto dust evacuator, plus dust indicator
*EPA Tier 4 Interim and EU stage 3B emissions certified    
     
Hydraulic System    
Type   HydrauMind (Hydraulic Mechanical Intelligence New Design) system, Closed-center system with load-sensing valves and pressure-compensated valves
Main pump:    
Type   Variable displacement piston type
Pumps for   Boom, arm, bucket, swing, and travel circuits
Maximum flow 64 U.S. gal/min 242 ltr/min
Hydraulic motors:    
Travel   2 x piston motor with parking brake
Swing   1 x piston motor with swing holding brake
Relief valve setting:    
Implement circuits 5,050 psi 34.8 MPa / 355 kgf/cm2
Swing circuits 3,920 psi 27.1 MPa / 276 kgf/cm²
Pilot circuit 470 psi 3.2 MPa / 33 kgf/cm²
Hydraulic cylinders / Number of cylinders: Bore x Stroke Bore x Stroke
Boom / 2 4.1" x 41.5" 105 mm x 1055 mm
Arm / 1 4.3" x 46.3" 110 mm x 1175 mm
Bucket / 1 3.7" x 34.8" 95 mm x 885 mm
     
Swing System    
Drive method   Hydraulic
Swing reduction   Planetary gear
Swing circle lubrication   Grease-bathed
Swing lock   Wet, multiple-disc brake
Swing speed   11.0 rpm
Swing torque 21,627 ft lbs 2991 kg.m
     
Drives and Brakes    
Steering control   Two levers with pedals
Drive method   Fully hydrostatic
Maximum drawbar pull 27,560 lbf 12,500 kgf
123 kN    
Maximum travel speed:    
High 3.2 mph 5.1 km/h
Low 1.8 mph 2.9 km/h
Service brake   Hydraulic lock
Parking brake   Wet, multiple-disc
     
Undercarriage    
Center frame X-leg frame  
Track frame Box-section  
Track type Sealed track  
Track adjuster Hydraulic  
Number of shoes 46 each side  
Number of carrier rollers 2 each side  
Number of track rollers 8 each side  
     
Coolant and Lubricant Capacity refilling    
Fuel tank 52.8 U.S. gal 200 ltr
Radiator 4.4 U.S. gal 16.7 ltr
Engine 3.0 U.S. gal 11.5 ltr
Final drive, each side 0.55 U.S. gal 2.1 ltr
Swing drive 0.7 U.S. gal 2.5 ltr
Hydraulic tank 18.2 U.S. gal 69 ltr
     
Operating Weight (APROXIMATE)    
Operating weight including 4600 mm / 15'1" one-piece boom, 2500 mm / 8'2" arm, SAE heaped 0.5 m³ / 0.65 yd³ backhoe bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.    
Shoes 20" 500 mm
Operating Weight 31,791 lb 14420 kg
Ground Pressure 0.46 kg/cm²  
45.1 kPa 6.54 psi  
Shoes 24" 600 mm
Operating Weight 32,187 lb 14600 kg
Ground Pressure 0.39 kg/cm²  
38.2 kPa 5.55 psi  
Shoes 28" 700 mm
Operating Weight 32,628 lb 14800 kg
Ground Pressure 0.34 kg/cm²  
33.3 kPa 4.83 psi  

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