Large capacity torque converter with lock-up: • Reduces 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 SAA6D140E-6 engine provides a net output of 263 kW / 353 HP with 7% 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 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 SAA6D140E-6*
Type		Water-cooled, 4-cycle
Aspiration		Turbo-charged, after-cooled, cooled EGR
Number of cylinders		6
Bore x Stroke	5.51" x 6.50"	140 mm x 165 mm
Piston displacement	930 in³	15.24 ltr
Govenor		All-speed, electronic
Horsepower
SAE J1995 - Gross	357 HP	266 kW
ISO 9249 / SAE J1349 - Net	353 HP	263 kW
Rated rpm		1900 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		Full-powershift, planetary type
Travel speed: (Measured with 23.5-25 tires)	Forward	Reverse
1st gear	4.7 mph 7.5 km/h	5.3 mph 8.5 km/h
2nd gear	8.0 mph 12.9 km/h	8.0 mph 12.9 km/h
2nd gear (Lock-up clutch ON)	8.1 mph 13.1 km/h	8.1 mph 13.0 km/h
3rd gear	13.8 mph 22.2 km/h	15.3 mph 24.7 km/h
3rd gear (Lock-up clutch ON)	14.7 mph 23.7 km/h	16.5 mph 26.6 km/h
4th gear	22.1 mph 35.5 km/h	23.6 mph 38.0 km/h
4th gear (Lock-up clutch ON)	23.2 mph 37.3 km/h	23.6 mph 38.0 km/h

Axles and Final Drives

Drive system		Four-wheel drive
Front		Fixed, semi-floating
Rear		Center-pin support, semi-floating, 24° 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, fully-hydraulic power steering
Steering angle		36° (40° to max end stop)
Minimum turning radius at the center of outside tire	23' 2"	7050 mm

Hydraulic System

Steering system:
Hydraulic pump		Piston pump
Capacity at rated rpm	31.7 U.S. gal/min	120 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	3.9" x 19.1"	100 mm x 486 mm
Loader control:
Hydraulic pump		Piston pump
Capacity at rated rpm	84.8 U.S gal/min	320 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:	Bore x Stroke:
Boom cylinder / 2	6.3" x 35.4"	160 mm x 898 mm
Bucket cylinder / 1	7.3" x 26.6"	185 mm x 675 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		7.2 sec
Dump		1.7 sec
Lower (Empty)		4.2 sec

Service Refill Capacities

Cooling system	35.1 U.S. gal	133 ltr
Fuel tank	124.9 U.S. gal	473 ltr
Engine	9.8 U.S. gal	37 ltr
Hydraulic system	89.0 U.S. gal	337 ltr
Axle (each front and rear)	25.1 U.S. gal	95 ltr
Torque converter and transmission	18.8 U.S. gal	71 ltr