PC88MR-10

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Engine   
Model    Komatsu SAA4D95LE-6* 
Type    Water cooled, 4-cycle, direct injection 
Aspiration    Turbocharged, air-to-air aftercooled EGR 
Number of cylinders   
Bore  3.74"  95 mm 
Stroke  4.52"  115 mm 
Piston displacement  199 in  3.26 ltr 
Horsepower:     
SAE J1995 / Gross  67.9 HP  50.7 kW 
ISO 9249 / SAE J1349 / Net  65.5 HP  48.8 kW 
Rated rpm    1950 
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 Final emissions certified     
Hydraulics   
Type - HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valve and pressure compensated valve 
Main pumps:     
Pumps for    Boom, arm, bucket, and travel circuits 
Type    Variable displacement, axial piston 
Maximum flow  42.2 U.S. gal/min  160 ltr/min 
Pumps for    Swing and blade 
Type    Fixed displacement gear 
Maximum flow  18.5 U.S. gal/min  70 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, travel circuit  3,844 psi  26.5 MPa
270 kgf/cm 
Swing and blade circuit  3,060 psi  21.1 MPa
215 kgf/cm 
Pilot circuit  464 psi  3.2 MPa
33 kgf/cm 
Blade circuit (Raise)  1,842 psi  12.7 MPa
130 kgf/cm 
Blade circuit (Lower)  3,060 psi  21.1 MPa
215 kgf/cm 
Hydraulic cylinders (Number of cylinders bore x stroke x rod diameter):     
Boom / 2  4.53" x 38.9" x 2.56"  115 mm x 988 mm x 65 mm 
Arm / 1  3.9" x 33.9" x 2.36"  100 mm x 861 mm x 60 mm 
Bucket / 1  3.54" x 27.95" x 2.17"  90 mm x 710 mm x 55 mm 
Swing / 1  4.72" x 25.12" x 2.36"  120 mm x 638 mm x 60 mm 
Blade / 1  5.12" x 7.87" x 2.56"  130 mm x 200 mm x 65 mm 
Drives and Brakes   
Steering control    Two levers with pedals 
Drive method    Fully hydrostatic 
Maximum drawbar pull  15,040 lbf  66.9 kN
6820 kgf 
Maximum travel speed:     
High  3.1 mph  5 km/h 
Low  1.9 mph  3.0 km/h 
Service brake    Hydraulic lock 
Parking brake    Mechanical discs 
Swing System   
Driven by    Hydraulic motor 
Swing reduction    Planetary gear 
Swing circle lubrication    Grease-bathed 
Swing lock    Mechanical disc brake 
Swing speed    10 rpm 
Undercarriage   
Center frame    X-frame leg 
Track frame    Box-section 
Track type    Sealed 
Track adjuster    Hydraulic 
Number of shoes (each side)    39 
Number of carrier rollers (each side)   
Number of track rollers (each side)   
Coolant & Lubricant Capacity (refilling)   
Fuel tank  33.0 U.S. gal  125 ltr 
Radiator  3.43 U.S. gal  13 ltr 
Engine  3.04 U.S. gal  11.5 ltr 
Final drive, each side  0.29 U.S. gal  1.1 ltr 
Swing drive  0.74 U.S. gal  2.8 ltr 
Hydraulic tank  14.8 U.S. gal  56 ltr 
Operating Weight (APROXIMATE)   
Operating weight includes 3405 mm / 11'2" one-piece boom, 2100 mm / 6'11" arm, SAE heaped 0.2 m / 0.26 yd bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment. 
Triple-Grouser Shoes  Operating Weight  Ground Pressure 
Road liner 450 mm / 18"  8720 kg
19,224 lb 
38.2 kPa / 0.39 kg/cm
5.54 psi 
Triple grouser 450 mm / 18"  8580 kg
18,916 lb 
38.2 kPa / 0.39 kg/cm
5.54 psi 
Triple grouser 600 mm / 24"  8750 kg
19,290 lb 
29.4 kPa / 0.30 kg/cm
4.26 psi 
Rubber shoe 450 mm / 18"  8500 kg
18,739 lb 
37.3 kPa / 0.38 kg/cm
5.41 psi 

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