PRODUCTIVITY FEATURES: ● Heavy Lift Mode Heavy lift mode increases lifting force by 10%. ● Large Digging Force High operation efficiency with large digging force for severe applications. ● Two-mode Setting for Boom Switch selection allows either powerful digging or smooth boom operation. ● Twin Swing Motor System provides excellent swing performance, even on slopes. ● Large Drawbar Pull and Steering Force provide excellent mobility. ● Swing Priority Mode Swing priority mode improves efficiency for loading dump trucks at 90° or 180° swing angles. ● Shockless Boom Switch selection reduces chassis vibration after sudden stops. EXCELLENT RELIABILITY AND DURABILITY: ● Booms and arms are constructed of thick one-piece plates and large castings for extended service life ● Fuel Pre-filters with water separator equipped as standard ● O-ring Face Seals, which have excellent sealing performance, are used for the hydraulic hoses ● High-pressure In-line Filtration The cool-running hydraulic system is protected with the most extensive filtration system available, including a high pressure in-line filter for each main pump. EASY MAINTENANCE: ● Easy Cleaning of Cooling Unit Fan reverse-rotation function helps keep radiator and oil cooler clean. ● Centralized Arrangement of Engine Checkpoints ● Slip-resistant Plates for improved foot traction ● Large Handrails, Steps and Catwalk provide easy access to the engine, hydraulic equipment, and cab ● Highly Reliable Electronic Devices Exclusively designed electronic devices have passed severe testing • Controllers • Sensors • Connectors • Heat resistant wiring • Circuit breaker ● Boom Foot Hoses are arranged under the boom foot, improving hose life and safety ECOLOGY AND ECONOMY FEATURES: ● Komatsu SAA6D170E-5 Engine is EPA Tier 3 Emissions Certified • World’s first cooled EGR system with bypass-assist type electronically controlled venturi • Offers high power and low fuel consumption, while conforming to EPA Tier 3 emission regulations • Reduces NOx emissions by approximately 40% • Equipped with an electronically controlled variable speed reversible fan ● Economy Mode Four-level SettingEnables operator to select the appropriate Economy mode level to match production requirement with lowest fuel consumption. ● Reduction of Ambient Noise • Electronically controlled variable speed fan drive • Large hybrid fan • Glasswool type low-noise muffler with noise reducing cover Working Environment: ● Large Comfortable Cab • Low noise and vibration with cab damper mounting • Large-capacity automatic air conditioner • Pressurized cab prevents external dust from entering • OPG top guard level 2 is standard (ISO 10262) Advanced Monitor Features: • Machine condition can be checked with Equipment Management Monitoring System (EMMS) • EMMS provides PM scheduling, error code, and failure diagnostic functions • Two working modes combine with heavy lift mode for maximum productivity

Engine

Model		Komatsu SAA6D170E-5
Type		4-cycle, water-cooled, direct injection
Aspiration		Turbocharged, aftercooled, cooled EGR
Number of cylinders		6
Bore	6.69"	170 mm
Stroke	6.69"	170 mm
Piston displacement	1,413 in³	23.15 ltr
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	688 HP	514 kW
ISO 9249 / SAE J1349 - Net	672 HP	502 kW
Hydraulic fan at maximum speed - Net	620 HP	463 kW
Rated rpm		1800 rpm
Fan drive type		Hydraulic, variable speed, reversible
EPA Tier 3 and EU stage 3A emission certified.

Hydraulic System

Type		Open-center load sensing system
Number of selectable working modes		2
Main pump:
Type		Variable capacity piston pumps
Pumps for		Boom, arm, bucket, swing, and travel circuits
Maximum flow:
For implement and travel	2 x 130.5 U.S. gpm	2 x 494 ltr/min
For swing	1 x 158.5 U.S. gpm	1 x 600 ltr/min
Sub-pump for control circuit		Gear pump
Hydraulic motors:
Travel		2 x axial piston motors with parking brake
Swing		2 x axial piston motors with swing holding brake
Relief valve setting:
Implement circuits	4,550 psi	31.4 MPa 320 kg/cm²
Travel circuit	4,980 psi	34.3 MPa 350 kg/cm²
Swing circuit	3,910 psi	27.0 MPa 275 kg/cm²
Pilot circuit	430 psi	2.9 MPa 30 kg/cm²
Hydraulic cylinders:
Cylinder / Number of cylinders	Bore x Stroke	Bore x Stroke
Backhoe
Boom / 2	8.9" x 94.1"	225 mm x 2390 mm
Arm / 1	9.8" x 95.9"	250 mm x 2435 mm
Bucket:
Std / 2	6.3" x 71.8"	160 mm x 1825 mm
SP / 2	6.3" x 76.8"	160 mm x 1950 mm

Swing System

Driven by		2 x Hydraulic motor
Swing reduction		Planetary gear
Swing circle lubrication		Grease-bathed
Swing lock		Oil disc brake
Swing speed		5.5 rpm

Drive and Brakes

Steering control		Two levers with pedals
Drive method		Fully hydrostatic
Travel motor		Axial piston motor, in-shoe design
Reduction system		Planetary double reduction
Maximum drawbar pull	154,320 lb	686 kN 70000 kg
Gradeability		70%
Maximum travel speed:
High	2.0 mph	3.2 km/h
Low	1.3 mph	2.1 km/h
Service brake		Hydraulic lock

Undercarriage

Center frame		H-leg frame
Track frame		Box-section
Track type		Sealed
Track adjuster		Hydraulic
No. of shoes:
Standard, SP, Shovel		48 each side
LC		55 each side
No. of carrier rollers		3 each side
No. of track rollers:
Standard, SP, Shovel		8 each side
LC		10 each side

Coolant and Lubricant Capacity (refilling)

Fuel tank	359.3 US gal	1360 ltr
Radiator	37.5 US gal	142 ltr
Engine	22.7 US gal	86 ltr
Final drive, each side	5.5 US gal	21 ltr
Swing drive	2 x 6.4 US gal	2 x 24.3 ltr
Hydraulic tank	177.0 US gal	670 ltr
PTO	3.6 US gal	13.5 ltr