OUTSTANDING PRODUCTIVITY Innovative SIGMADOZER™ reduces digging resistance and demonstrates smooth material roll up to increase blade load. Blade capacity 14.6 m³ 19.1 yd³ Komatsu-integrated design for value, reliability, and versatility. Hydraulics, power train, frame, and all other major components are engineered by Komatsu. You get a machine with components designed to work together for higher production, greater reliability, and more versatility Hydraulically driven radiator cooling fan controlled automatically, reduces fuel consumption and operating noise levels. SAA6D140E-5 turbocharged after-cooled diesel engine provides a net output of 335 kW / 449 HP with excellent productivity. This engine is EPA Tier 3 and EU stage 3A emissions certified. Preventative maintenance • Centralized service station • Enclosed hydraulic piping • Modular power train design • Oil pressure checking ports Automatic lockup torque converter saves fuel and increases speed and power transmission efficiency on long pushes. Simple hull frame and monocoque track frame with pivot shaft for greater reliability. 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. New hexagonal designed cab includes: • Spacious interior • Comfortable ride with new cab damper mounting and K-Bogie undercarriage • Excellent visibility • High capacity air conditioning system • Palm Command Control System (PCCS) lever controls • Pressurized cab • Adjustable armrests • Travel control console integrated with operator seat Extra-low machine profile provides excellent machine balance and low center of gravity. Hydrostatic Steering System (HSS) provides smooth, quick, and powerful control in varying ground conditions. Optional track shoe slip control system reduces operator fatigue. K-Bogie undercarriage system improves traction, component durability, and operator comfort. New track link design reduces maintenance cost by making turning pins easier, with improved pin reuse. Low-drive, long-track, seven roller undercarriage provides outstanding grading ability and stability.

Engine

Model		Komatsu SAA6D140E-5
Type		4-cycle, water-cooled, direct injection
Aspiration		Turbocharged, air-to-air aftercooled, cooled EGR
No. of cylinders		6
Bore x stroke	5.51" x 6.50"	140 mm x 165 mm
Piston displacement	930 in³	15.24 ltr
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	452 HP	337 kW
ISO 9249 / SAE J1349 - Net	449 HP	335 kW
Hydraulic fan at maximum speed - Net	410 HP	306 kW
Rated rpm		2000 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow

TORQFLOW Transmission

Gear	Forward	Reverse
1st	2.2 mph / 3.6 km/h	2.9 mph / 4.7 km/h
2nd	4.2 mph / 6.7 km/h	5.4 mph / 8.7 km/h
3rd	7.0 mph / 11.2 km/h	9.3 mph / 14.9 km/h

Final Drives

Minimum turning radius

12'10

3.9 m

Steering System

Minimum turning radius

12'10

3.9 m

Undercarriage

Suspension		Oscillating equalizer bar and pivot shaft
Track roller frame		Cylindrical, high-tensile-strength steel construction
Rollers and idlers		Lubricated track rollers
K-Bogie undercarriage		Lubricated track rollers are resiliently mounted to the roller frame with a series of K-Bogies whose oscillating motion is cushioned by rubber pads.
Extreme service track shoes		Lubricated tracks. Unique seals help prevent entry of foreign abrasive material into pin-to-bushing clearances to provide extended service life. Track tension is easily adjusted with a grease gun.
Number of shoes (each side)		39
Grouser height:
Single grouser	3.5''	88 mm
Shoe width (standard)	24''	610 mm
Ground contact area	6,580 in²	42456 cm²
Ground pressure (tractor only)	12.7 psi	87.3 kPa / 0.89 kg/cm²
No. of track rollers		7
No. of carrier rollers		2
Extreme service shoes	24"	610 mm
Additional weight	0 lb	0 kg
Ground contact area	6,580 in²	42456 cm²
SIGMADOZER™ Strengthened Dual tilt Ground pressure**	17.2 psi	119 kPa / 1.21 kg/cm²
Semi-U tilt dozer Ground pressure**	16.6 psi	115 kPa / 1.17 kg/cm²
Extreme service shoes	28''	710 mm
Additional weight	1,260 lb	570 kg
Ground contact area	7,659 in²	49416 cm²
SIGMADOZER™ Strengthened Dual tilt Ground pressure**	15.0 psi	103 kPa / 1.05 kg/cm²
Semi-U tilt dozer Ground pressure**	14.5 psi	100 kPa / 1.02 kg/cm²
Extreme service shoes	30''	760 mm
Additional weight	1,870 lb	850 kg
Ground contact area	8,199 in²	52896 cm²
SIGMADOZER™ Strengthened Dual tilt Ground pressure**	14.1 psi	97 kPa / 0.99 kg/cm²
Semi-U tilt dozer Ground pressure**	13.7 psi	94 kPa / 0.96 kg/cm²
** Ground pressure based on tractor, cab, ROPS, operator, giant ripper, standard equipment, and shoe and blade shown in the chart.

Coolant and Lubricant Capacity (refill)

Fuel tank	222 U.S. gal	840 ltr
Coolant	26.4 U.S. gal	100 ltr
Engine	13.7 U.S. gal	52.0 ltr
Torque converter, transmission, bevel gear, and steering system	23.8 U.S. gal	90 ltr
Final drive (each side)	10.6 U.S. gal	40 ltr

Operating Weight

Tractor weight - Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.	83,070 lb	37680 kg
Operating weight - Including Strengthened Dual tilt SIGMADOZER™, giant ripper, steel cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.	113,600 lb	51530 kg
Ground pressure	17.2 psi	119 kPa / 1.21 kg/cm²

Hydraulic System

Hydraulic control units:		All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 230 ltr/min / 60.8 U.S. gal/min at rated engine rpm.
Relief valve setting	3,980 psi	27.5 MPa / 280 kg/cm²
Control valves:		Spool control valves for SIGMADOZER™, Semi-U tilt and Full-U tilt dozer
Positions:
Blade lift		Raise, hold, lower, and float.
Blade tilt		Right, hold, and left.
Note:		Additional control valve required for variable digging angle multi-shank ripper and giant ripper.
Positions:
Ripper lift		Raise, hold, and lower.
Ripper tilt		Increase, hold, and decrease.
Hydraulic cylinders		Double-acting, piston.
Hydraulic cylinders/ Number of cylinders:	Bore	Bore
Blade lift / 2	4.72''	120 mm
Blade tilt / 1(Single tilt), 2(Dual tilt)	7.09''	180 mm
Ripper lift / 2	7.09''	180 mm
Ripper tilt / 2	6.30''	160 mm
Hydraulic oil capacity (refill):
SIGMADOZER™, Semi-U dozer, or U dozer	34.3 U.S. gal	130 ltr
Ripper equipment (additional volume):
Giant ripper	10.0 U.S. gal	38 ltr
Multi-shank ripper	10.0 U.S. gal	38 ltr