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Komatsu Excavators PC138USLC-10
PC138USLC-10 Hydraulic Excavator
Komatsu pioneered the tight tail swing design and has perfected it in the Tier 4 interim PC138USLC-10. With this excavator you can work in one lane of traffic without disturbing the other lane. Beyond its - tight swing capability, the PC138USLC-10 has the same digging and lifting power as most standard competitive excavators. Six working modes and pump/engine matching technology like larger Komatsu excavators makes the new PC138USLC-10 7% more fuel efficient than the previous model.
Engine
Model
Komatsu SAA4D95LE-6*
Type
Water cooled, 4-cycle, direct injection
Aspiration
Turbocharged, and air-to-air aftercooled
Number of cylinders
4
Bore
3.74"
95 mm
Stroke
4.53"
115 mm
Piston displacement
199 in³
3.26 ltr
Horsepower:
Gross (SAE J1995) @ 2200 rpm
98 HP
72 kW
Net (ISO 9249/SAE J1349) @ 2200 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 valves and pressure-compensated valves
Main pump:
Type
Variable displacement piston type
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
Drive method
Hydraulic
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
Track type
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 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.
