PC138USLC-10

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Engine   
Model    Komatsu SAA4D95LE-6* 
Type    Water cooled, 4-cycle, direct injection 
Aspiration    Turbocharged, air-to-air aftercooled 
Number of cylinders   
Bore  3.74"  95 mm 
Stroke  4.53"  115 mm 
Piston displacement  199 in³  3.26 ltr 
Horsepower:     
Gross (SAE J1995) @ 2050 rpm  98 HP  72 kW 
Net (ISO 9249/SAE J1349) @ 2050 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 valve and pressure-compensated valve 
Main pump:     
Type    Variable capacity 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   
Driven by    Hydraulic motor 
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 
Seal of track    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  69.0 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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