Komatsu-PC71

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Komatsu PC71 Base

Variants

Specifications of Komatsu PC71 Base

Engine

  • (SAE J1995) 60 HP 44.1 kW @ 1900 RPM
  • Aspiration Naturally aspirated
  • Bore 105mm 4.13”
  • Engine Model .KOEL 4R-1040
  • Governor All-speed, m echanica
  • No. of cylinders 4
  • Piston displacement . 4.16ltr 253.63 cu in
  • Stroke 120mm 4.72”
  • Type .4-cycle, water-cooled, direct-injection

Service Refill Capacities

  • Engine 9.6 ltr 2.5 U.S.gal
  • Final drive, each side 1.7 ltr 0.4 U.S. gal
  • Fuel Tank 130.0 ltr 34.3 U.S. gal
  • Hydraulic Tank 57.0 ltr 15.1 U.S.gal
  • Radiator 22.0 ltr 5.8 U.S. gal
  • Swing drive. 1.5 ltr 0.4 U.S. gal

Operating Specifications

  • Bucket hook height 3710 mm 12’ 2” one-piece boom
  • Lifting Capacity 1650 mm 5’ 5” arm
  • Rating over front 0.3 m 0.4 cu. yd SAE heaped HD bucket
  • Rating over side 450 mm 18” triple-grouser shoes

Dimensions

  • Distance, swing center to rear end 1750 mm 5'9'’
  • Ground clearance, counterweight 750 mm 2'6''
  • Grouser Height 20 mm 0.79''
  • Length of Track on Ground 2130 mm 7'
  • Length on ground (transport) 3645 mm 12’
  • Machine cab height 1810 mm 5'11''
  • Machine cab width 2180 mm 7'2''
  • Min. Ground Clearance 350 mm 1'2''
  • Overall Height (to top of boom) 2500 mm 8'2'’
  • Overall height (to top of cab) 2590 mm 8'6''
  • Overall Length 6080 mm 19'11'’
  • Overall Width 2225 mm 7'4''
  • Tail swing radius 1750 mm 5'9''
  • Track Gauge 1700 mm 5'7''
  • Track Length 2765 mm 9'1''
  • Track Shoe Width 450 mm 1'6''
  • Width of crawler 2150 mm 7'1''

Hydraulic System

  • Main pump: .Variable-displacement piston p ump
  • Maximum flow. 1 x 155 ltr / min 41.0 U.S. gal/min
  • Swing 1 x Axial piston motor with Swing holding brake
  • Travel .2 x Axial piston motor with parking brake
  • Type HydrauMind (Hydraulic Mechanical Intelligence New Design) system Closed-centre system with load sensing valves and pressure compensated valve

Brakes

  • Parking brakes Oil disc brake
  • Service .Hydraulic lock type

Undercarriage

  • No. of carrier rollers 5 each side
  • No. of shoes .38 each side
  • No. of track rollers 1 each side
  • Seal of track Sealed track
  • Track adjuster .Hydraulic type
  • Track frame .Box section type

WEIGHT

  • Ground Pressure 0.34 kg/cm²
  • Operating Weight 7050 kg

SWING SYSTEM

  • Driven by Hydrostatic motor
  • Swing circle lubrication .Grease-bathed
  • Swing lock Oil disc brake
  • Swing reduction .Planetary gear reduction
  • Swing speed.. 12.0 RPM

WORKING RANGE

  • Arm crowd force 3600 kg
  • Bucket digging force 4800 kg 10,580 Ib/47.1 kN
  • Max. digging depth 4100 mm 13'5''
  • Max. digging height 7150 mm 23'6”
  • Max. digging reach 6360 mm 20'10''
  • Max. digging reach at ground level 6220 mm 20'5''
  • Max. dumping height 5015 mm 16'5''
  • Max. vertical wall digging depth 3505 mm 11'5’'
  • Min. swing radius 1750 mm 5’9”

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