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PC390LC-10

15

Specifications

Undercarriage

Center frame. ................................................................. X-frame Track frame. .............................................................Box-section Seal of track. ...........................................................Sealed track Track adjuster...............................................................Hydraulic Number of shoes (each side)................................................. 49 Number of carrier rollers (each side)......................................... 2 Number of track rollers (each side)........................................... 8

Engine

Model...................................................Komatsu SAA6D114E-5* Type.................................Water-cooled, 4-cycle, direct injection Aspiration.................... Turbocharged, aftercooled, cooled EGR Number of cylinders................................................................ 6 Bore. ....................................................................114 mm 4.49"

Stroke................................................................144.5 mm 5.69"

Piston displacement........................................... 8.85 ltr 540 in 3

Horsepower:

SAE J1995..........................................Gross 202 kW 271 HP ISO 9249 / SAE J1349........................... Net 192 kW 257 HP Rated rpm..................................................................... 1950 Fan drive method for radiator cooling. .................. Mechanical Governor. ....................................... All-speed control, electronic

*EPA Tier 4 Interim and EU stage 3B emissions certifed

Swing System

Drive method............................................................ Hydrostatic Swing reduction. ................................................. Planetary gear Swing circle lubrication....................................... Grease-bathed Service brake. ...................................................... Hydraulic lock Holding brake/Swing lock.......................Mechanical disc brake Swing speed. ................................................................. 9.5 rpm Swing torque..................................... 11386 kg•m 82,313 ft lbs

Hydraulics

Type ......... HydrauMind (Hydraulic Mechanical Intelligence New

Design) system, closed-center system with load sensing valves and pressure compensated valves Number of selectable working modes..................................... 6 Main pump:

Type..................................Variable displacement piston type Pumps for.......Boom, arm, bucket, swing, and travel circuits Maximum fow.............................. 535 ltr/min 141.3 gal/min

Supply for control circuit.......................... Self-reducing valve Hydraulc motors:

Travel. .................. 2 x axial piston motors with parking brake Swing........... 1 x axial piston motor with swing holding brake Relief valve setting:

Implement circuits............... 37.3 MPa 380 kg/cm 2 5,400 psi Travel circuit........................ 37.3 MPa 380 kg/cm 2 5,400 psi Swing circuit. ...................... 27.9 MPa 285 kg/cm 2 4,050 psi

Pilot circuit. ................................ 3.2 MPa 33 kg/cm 2 470 psi

Hydraulic cylinders:

(Number of cylinders – bore x stroke x rod diameter)

Boom. 2–140 mm x 1480 mm x 100 mm 5.5" x 58.3" x 3.9" Arm..... 1–160 mm x 1825 mm x 110 mm 6.3" x 71.9" x 4.3" Bucket. ...................... for 3.2 m 10'5" and 4.0 m 13'2" Arms 1–140 mm x 1285 mm x 100 mm 5.5" x 50.6" x 3.9" for 2.54 m 8'4" Arm 1–150 mm x 1285 mm x 110 mm 5.9" x 50.6" x 4.3"

Drives and brakes

Steering control.......................................Two levers with pedals Drive method............................................................ Hydrostatic Maximum drawbar pull....................329 kN 33510 kg 73,880 lb

Gradeability..................................................................70%, 35° Maximum travel speed: High........................ 5.5 km/h 3.4 mph (Auto-Shift) Mid.......................... 4.4 km/h 2.7 mph

(Auto-Shift) Low......................... 3.0 km/h 1.9 mph

Service brake. ...................................................... Hydraulic lock Parking brake..........................................Mechanical disc brake

coolant & lubricant capacity

(Refilling)

Fuel tank.................................................. 605 ltr 159.8 U.S. gal

Coolant.......................................................... 37 ltr 9.7 U.S. gal

Engine............................................................35 ltr 9.2 U.S. gal

Final drive, each side.....................................9.0 ltr 2.4 U.S. gal

Swing drive.................................................. 13.7 ltr 3.6 U.S. gal

Hydraulic tank. .......................................... 188 ltr 49.7 U.S. gal

Hydraulic system..................................... 365 ltr 96.4 U.S. gal

operating weight

(approximate)

Operating weight includes 6500 mm 21'3" one-piece HD boom, 3185 mm 10'5" arm, SAE heaped 1.96 m 3 2.56 yd 3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.

Triple-Grouser Shoes Operating Weight Ground Pressure

700 mm 39461 kg 0.59 kg/cm 2

28" 86,998 lb 8.31 psi

800 mm 39965 kg 0.52 kg/cm 2

31.5" 88,107 lb 7.36 psi

900 mm 40402 kg 0.46 kg/cm 2

35.5" 89,071 lb 6.62 psi Component Weights

Arm including bucket cylinder and linkage

3185 mm 10'5" arm assembly.................... 1761 kg 3,882 lb

4020 mm 13'2" arm assembly. .................. 1988 kg 4,383 lb

One piece HD boom including arm cylinder

6500 mm 21'3" boom assembly. ............... 3135 kg 6,912 lb

Boom cylinders x 2.............................................. 259 kg 571 lb

Counterweight............................................... 7090 kg 15,631 lb

1.96 m 3 2.56 yd 3 bucket - 54" width............... 1554 kg 3,425 lb

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