High Productivity & Low Fuel Consumption • High performance SAA6D170E-5 engine • Low fuel consumption • Dual-mode engine power select system • Variable traction control system • Large capacity lock-up torque converter • Brake cooling system • Variable displacement piston pump & Closed-center Load Sensing System (CLSS) • Long wheelbase Excellent Operator Environment • Automatic transmission with Electronically Controlled Modulation Valve (ECMV) • Low-noise designed cab • Modulated clutch system • Engine RPM set system with auto decel • Advanced Joystick Steering System (AJSS) • Electronic Pilot Control (EPC) mono lever • Large ROPS/FOPS Level 2 integrated cab with pillar-less front glass • Easy entry/exit, front-hinged door Harmony with Environment • EPA Tier 3 and EU Stage 3A emissions certified • Low exterior noise • Low fuel consumption Increased Reliability • Reliable Komatsu designed and manufactured components • Sturdy main frame • Adjustment-free, fully hydraulic, wet disc service and parking brakes • Hydraulic hoses use flat face O-ring seals • Sealed DT electrical connectors Easy Maintenance • Equipment Management Monitoring System (EMMS) • Vehicle Health Monitoring System (VHMS) • Ease of radiator cleaning • Modular radiator core system • Hydraulic-driven cooling fan with reverse rotation

Engine

Model		Komatsu SAA6D170E-5*
Type		Water-cooled, 4-cycle
Aspiration		Turbocharged, aftercooled, cooled EGR
Number of cylinders		6
Bore x stroke	6.69" x 6.69"	170 mm x 170 mm
Piston displacement	1,413 in³	23.15 ltr
Governor		all-speed, electronic
Horsepower:
SAE J1995 - Gross	530 HP	396 kW
ISO 9249/SAE J1349 - Net	527 HP	393 kW
Hydraulic fan at maximum speed - Net	502 HP	374 kW
Rated rpm		1800 rpm
Fan drive method for radiator cooling		Hydraulic
Fuel system		Direct injection
Lubrication system:
Method		Gear pump, force-lubrication
Filter		Full-flow type
Air cleaner		Dry type with double elements and dust evacuator, plus dust indicator
*EPA Tier 3 and EU stage 3A emissions certified.

Transmission

Torque converter:
Type		3-element, single-stage, double-phase
Transmission:
Type		Full-powershift, planetary type
Travel speed		Measured with 35/65-33 tires
Speed:	Forward (Lock-up clutch ON)	Reverse
1st	4.2 mph 6.7 km/h	4.5 mph 7.3 km/h
2nd	7.3 mph 11.7 km/h (7.7 mph 12.4 km/h)	8.0mph 12.8 km/h
3rd	12.6 mph 20.3 km/h (13.5 mph 21.7 km/h)	13.7 mph 22.0 km/h
4th	20.5 mph 33.0 km/h (23.4 mph 37.7 km/h)	22.4 mph 36.0 km/h

Axles and Final Drives

Drive system		Four-wheel drive
Front		Fixed, semi-floating
Rear		Center-pin support, semi-floating, 26° total oscillation
Reduction gear		Spiral bevel gear
Differential gear		Conventional type
Final reduction gear		Planetary gear, single reduction

Brakes

Service brakes		Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake		Wet disc brake
Emergency brake		Parking brake is commonly used

Steering System

Type		Articulated type, full-hydraulic power steering
Steering angle		43° each direction
Minimum turning radius at the center of outside tire	23'3"	7075 mm

Hydraulic System

Steering system:
Hydraulic pump		Piston type
Capacity at rated rpm	43.1 U.S. gal/min	163 ltr/min
Relief valve setting	4,980 psi	34.3 MPa 350 kgf/cm²
Hydraulic cylinders:
Type		Double-acting, piston
Number of cylinders		2
Bore x stroke	5.1" x 20"	130 mm x 510 mm
Loader control:
Hydraulic pump		Piston type
Capacity at rated rpm	47.6 + 47.6 U.S. gal/min	180 + 180 ltr/min
Relief valve setting	3,560 psi	24.5 MPa 250 kgf/cm²
Hydraulic cylinders:
Type		Double-acting, piston
Number of cylinders:	Bore x Stroke:	Bore x Stroke:
Blade lift - 1	6.3" x 42.5"	160 mm x 1080 mm
Tilt and pitch - 2	7.0" x 9.3"	180 mm x 237 mm
Control valve		3-spool type
Control positions:
Blade lift		Raise, hold, lower, and float
Tilt and pitch		Tilt-left, tilt-right, hold, pitch forward and back
Hydraulic cycle time
Raise		2.0 sec
Lower		1.3 sec
Tilt (left / right)		0.8 / 1.1 sec
Pitch (front / rear)mage		2.1 / 1.6 sec

Service Refill Capacities

Cooling system	38.8 U.S. gal	147 ltr
Fuel tank	189.7 U.S. gal	718 ltr
Engine	22.7 U.S. gal	86 ltr
Hydraulic system	117.0 U.S. gal	443 ltr
Axle:
Front	41.0 U.S. gal	155 ltr
Rear	41.0 U.S. gal	155 ltr
Torque converter and transmission	21.9 U.S. gal	83 ltr