Large capacity torque converter with lock-up: • 8% lower fuel consumption • Faster top speed • Quick acceleration • Lock-up in 2nd, 3rd and 4th gear Komatsu SmartLoader Logic helps reduce fuel consumption with no decrease in production. A powerful Komatsu SAA6D125E-6 engine provides a net output of 203 kW / 272 HP with 8% improved fuel consumption. This engine is EPA Tier 4 Interim and EU stage 3B emissions certified. Komatsu Variable Geometry Turbocharger (KVGT) uses a hydraulic actuator to provide optimum air flow under all speed and load conditions. Komatsu Diesel Particulate Filter (KDPF) captures 90% of particulate matter and provides automatic regeneration that does not interfere with daily operation. Increased cooling capacity • Auto-reversing fan is standard • Wider core coolers • Swing out fan An all new cab provides the operator with improved comfort and visibility. New high resolution monitor panel • Enhanced and intuitive on-board diagnostics • Integrated with KOMTRAX Level 4 • Integrated with Komatsu Tier 4 technology Rearview monitoring system (standard) New high capacity air suspension seat • Seat mounted EPC controls with F-N-R switch • Seat heater is standard Energy saving guidance • Six operator guiding messages • Enhanced eco-gauge Komatsu Auto Idle Shutdown helps reduce idle time and reduce operating costs. Remote boom and bucket positioners can set kick-outs from inside the cab. Variable displacement piston pumps with CLSS help reduce fuel consumption. KOMTRAX equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.

Engine

Model		Komatsu SAA6D125E-6*
Type		Water-cooled, 4-cycle
Aspiration		Turbo-charged, after-cooled, cooled EGR
Number of cylinders		6
Bore x stroke	4.9" x 5.9"	125 mm x 150 mm
Piston displacement	674 in³	11.04 ltr
Governor		all-speed, electronic
Horsepower:
SAE J1995 - Gross	273 HP	204 kW
ISO 9249/SAE J1349 - Net	272 HP	203 kW
Rated rpm		2000 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 4 Interim and EU stage 3B emissions certified

Transmission

Torque converter:		3-elements, 1-stage, 2-phase
Transmission		Automatic full-powershift, countershaft type
Travel speed: (Measured with 26.5-25 tires)	Forward	Reverse
1st	4.7 mph 7.6 km/h	4.9 mph 7.9 km/h
2nd	8.1 mph 13.1 km/h	8.4 mph 13.5 km/h
2nd (Lock-up clutch ON)	8.2 mph 13.2 km/h	8.5 mph 13.7 km/h
3rd	14.2 mph 22.9 km/h	14.7 mph 23.6 km/h
3nd (Lock-up clutch ON)	14.7 mph 23.6 km/h	15.1 mph 24.3 km/h
4th	22.5 mph 36.2 km/h	23.2 mph 37.3 km/h
4nd (Lock-up clutch ON)	23.8 mph 38.3 km/h	24.2 mph 39.0 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
*May be used in an emergency

Steering System

Type		Articulated type, full-hydraulic power steering
Steering angle		35° each direction (40° to max end stop)
Minimum turning radius at the center of outside tire	21'9"	6630 mm

Hydraulic System

Steering system:
Hydraulic pump		Piston pump
Capacity	51.5 U.S. gal/min	195 ltr/min
Relief valve setting	3,555 psi	24.5 MPa / 250 kgf/cm²
Hydraulic cylinders:
Type		Double-acting, piston type
Number of cylinders		2
Bore x stroke	3.5" x 17.3"	90 mm x 441 mm
Loader control:
Hydraulic pump		Piston pump
Capacity	68.7 U.S. gal/min	260 ltr/min
Relief valve setting	4,980 psi	34.3 MPa / 350 kgf/cm²
Hydraulic cylinders:
Type		Double-acting, piston type
Number of cylinders—bore x stroke:
Boom cylinder — 2	5.5" x 30.0"	140 mm x 764 mm
Bucket cylinder — 1	6.3" x 22.6"	160 mm x 575 mm
Control valve		2-spool type
Control positions:
Boom		Raise, hold, lower, and float
Bucket		Tilt-back, hold, and dump
Hydraulic cycle time (rated load in bucket)
Raise		6.1 s
Dump		1.6 sec
Lower (Empty)		3.1 sec

Service Refill Capacities

Cooling system	21.1 U.S. gal	80 ltr
Fuel tank	100.4 U.S. gal	380 ltr
Engine	10.0 U.S. gal	38 ltr
Hydraulic system	45.7 U.S. gal	173 ltr
Axle front	15.1 U.S. gal	57 ltr
Axle rear	14.8 U.S. gal	56 ltr
Torque converter and transmission	17.2 U.S. gal	65 ltr