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Komatsu Excavators PC138USLC-8

Komatsu Excavators PC138USLC-8
Specifications :
Engine

Model
Komatsu SAA4D95LE-5
Type
Water cooled, 4-cycle, direct injection
Aspiration
Turbocharged, and air-to-air aftercooled
Number of cylinders
4
Bore3.74"95 mm
Stroke4.53"115 mm
Piston displacement199 in³3.26 ltr
Horsepower:

Gross (SAE J1995) @ 2200 rpm97 HP72 kW
Net (ISO 9249/SAE J1349) @ 2200 rpm92 HP68 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 3 emission ready.


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 flow64 U.S. gal/min242 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 circuits5,050 psi34.8 MPa / 355 kgf/cm2
Swing circuits3,920 psi27.1 MPa / 276 kgf/cm2
Pilot circuit470 psi3.2 MPa / 33 kgf/cm2
Hydraulic cylinders / Number of cylinders:Bore x StrokeBore x Stroke
Boom / 24.1" x 41.5"105 mm x 1055 mm
Arm / 14.3" x 46.3"110 mm x 1175 mm
Bucket / 13.7" 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 torque21,627 ft lbs2991 kg.m

Drives and Brakes
Steering control
Two levers with pedals
Drive method
Fully hydrostatic
Maximum drawbar pull27,560 lbf12,500 kgf
123 kN
Maximum travel speed:

High3.2 mph5.1 km/h
Low1.8 mph2.9 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 Capity (refilling)
Fuel tank52.8 U.S. gal200 ltr
Radiator3.8 U.S. gal14.2 ltr
Engine2.9 U.S. gal11.0 ltr
Final drive, each side0.7 U.S. gal2.5 ltr
Swing drive0.7 U.S. gal2.5 ltr
Hydraulic tank18.2 U.S. gal69.0 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.
Shoes20"500 mm
Operating Weight31,107 lb14110 kg
Ground Pressure0.42 kg/cm²
41.2 kPa
5.97 psi
Shoes24"600 mm
Operating Weight31,504 lb14290 kg
Ground Pressure0.36 kg/cm²
35.3 kPa
5.12 psi
Shoes28"700 mm
Operating Weight31,944 lb14490 kg
Ground Pressure0.31 kg/cm²
30.4 kPa
4.41 psi


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