Excellent Operator Environment • HST traction control switch • Electronically controlled directional lever • Tiltable steering column • Low-noise designed cab • Pillar-less large ROPS/FOPS Level 2 cab-integrated • Easy entry/exit, rear-hinged doors High Productivity & Low Fuel Consumption with Hydrostatic Transmission • High performance SAA6D107E-1 engine • Low fuel consumption • Electronically-controlled HST with variable shift control system • Variable traction control system • S-mode Environmentally Friendly • EPA Tier 3 and EU Stage 3A emissions certified • Low exterior noise • Low 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. 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 • Cathion electrodeposition process is used to apply primer paint • Powder coating process is used to apply main structure paint • Sealed DT connectors for electrical connections Easy Maintenance • Equipment Management Monitoring System (EMMS) • Easy access, gull-wing type engine side doors • Automatic reversible fan • KOMTRAX^®

Engine

Model		Komatsu SAA6D107E-1
Type		Water-cooled, 4-cycle
Aspiration		Turbocharged, aftercooled
Number of cylinders		6
Bore x stroke	4.21" x 4.88"	107 mm x 124 mm
Piston displacement	408 in³	6.69 ltr
Governor		All-speed, electronic
Horsepower:
SAE J1995	171 HP	127.3 kW
ISO 9249/SAE J1349	167 HP	125 kW
Hydraulic fan at maximum speed	156 HP	117 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 3 and EU Stage 3A emissions certified.

Transmission

Transmission		Hydrostatic, 1 pump, 2 motors with speed range select
Travel Speed (Both Forward and Reverse):	Measured with 20.5-25 tires
1st	2.5 - 8.1 mph	4.0 - 13.0 km/h
2nd	8.1 mph	13.0 km/h
3rd	11.6 mph	18.7 km/h
4th	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, 30° total oscillation
Reduction gear		Spiral bevel gear
Differential gear		Torque proportioning
Final reduction gear		Planetary gear, single reduction

Brakes

Service brakes		Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake		Wet, multi-disc brake on transfer output shaft
Emergency brake		Parking brake is commonly used

Steering System

Type		Full-hydraulic power steering
Steering angle		38.5° each direction (40° end stop)
Minimum turning radius at the center of outside tire	17'8"	5380 mm

Hydraulic System

Steering system:
Hydraulic pump		Gear type pump
Capacity (at rated rpm)	45.4 U.S. gal/min	172 ltr/min
Relief valve setting	2,990 psi	20.6 MPa 210 kgf/cm²
Hydraulic cylinders:
Type		Double-acting, piston type
Number of cylinders		2
Bore x stroke	2.8" x 17.8"	70 mm x 453 mm
Loader control:
Hydraulic pump		Gear type pump
Capacity	16.1 U.S. gal/min	61 ltr/min
Relief valve setting	3,000 psi	210 kg/cm² 20.6 MPa
Hydraulic cylinders:
Type		Double-acting, piston type
Number of cylinders:	bore x stroke:	bore x stroke:
Boom cylinder / 2	5.5" x 29.1"	140 mm x 740 mm
Bucket cylinder / 1	6.3" x 20.9"	160 mm x 532 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 sec
Dump		1.2 sec
Lower (empty)		3.3 sec

Service Refill Capacities

Cooling system	6.6 U.S. gal	25 ltr
Fuel tank	64.7 U.S. gal	245 ltr
Engine	6.1 U.S. gal	23 ltr
Hydraulic system	23.5 U.S. gal	89.0 ltr
Axle (each front and rear)	6.3 U.S. gal	24.0 ltr
Transfer case	1.7 U.S. gal	6.5 ltr