SAA6D170E-5 turbocharged aftercooled diesel engine provides a net output of 455 kW 610 HP with excellent productivity. This machine 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 • Multi-Monitor with Self Diagnostic Function • KOMTRAX plus Komatsu-integrated design for the best 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 and wear together as a system for higher production, greater reliability, and more versatility. Hydraulically driven radiator cooling fan controlled automatically, reduces fuel consumption and operating noise levels. Automatic transmission with lockup torque converter increases speed and power to improve fuel consumption and productivity. High efficiency blade provides a new blade profile to maximize prouctivity. Semi-U dozer 18.5 m³/24.2 yd³ Full-U dozer 22.0 m³/28.8 yd³ Simple hull frame and monocoque track frame with pivot shaft for greater reliability. The Dual tilt dozer increases productivity while reducing operator effort. Track link design reduces maintenance cost by making turning pins easier, with improved pin reuse. Low-drive, long-track, eight roller undercarriage provides outstanding grading ability and stability. Track shoe slip control system reduces operator fatigue. Hexagonal designed cab includes: • Spacious interior • Comfortable ride with cab damper mounting • Excellent visibility • High capacity air conditioning system • Palm Command Control System (PCCS) joystick controls • Pressurized cab • Adjustable armrests • Travel control console integrated with operator seat Large TFT LCD monitor • Easy-to-see and use large 7" multi-color monitor • Can be displayed in 10 languages for global support • Full diagnostic capability TFT : Thin Film Transistor LCD : Liquid Crystal Display Electronic Controlled Modulation Valve (ECMV) controlled steering clutch/brake system facilitates smooth and shockless steering operation. Palm Command Control System (PCCS) • Electronic controlled PCCS travel control • Hydraulic controlled PCCS blade/ripper control • Fuel control dial • Automatic/manual gearshift selectable mode • Gearshift pattern preset function • ECMV controlled transmission Rear attachments (optional) • Variable giant ripper • Multi-shank ripper • Counterweight KOMTRAX Plus provides efficent monitoring of machine conditions for maximum productivity. K-Bogie undercarriage system improves traction, component durability, and operator comfort. Extra-low machine profile provides excellent machine balance and low center of gravity.

Engine

Model		Komatsu SAA6D170E-5*
Type		4-cycle, water-cooled, direct injection
Aspiration		Turbocharged, air-to-air 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 and mid-range, electronic
Horsepower:
SAE J1995 - Gross	636 HP	474 kW
ISO 9249 / SAE J1349 - Net	610 HP	455 kW
Hydraulic fan at maximum speed - Net	580 HP	433 kW
Rated rpm		1800 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow

TORQFLOW Transmission

Gear	Forward	Reverse
1st	2.2 mph 3.5 km/h	2.9 mph 4.6 km/h
2nd	4.2 mph 6.8 km/h	5.5 mph 8.9 km/h
3rd L	5.0 mph 8.0 km/h	6.0 mph 9.7 km/h
3rd	7.3 mph 11.8 km/h	9.8 mph 15.8 km/h

Final Drives

Minimum turning radius

13'9"

4.2 m

Steering System

Minimum turning radius

13'9"

4.2 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 track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.
Extreme service track shoes		Lubricated tracks. Unique seals prevent entry of foreign abrasives into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with grease gun.
Number of shoes (each side)		41
Grouser height:
Single grouser	3.7"	93 mm
Shoe width (standard)	24"	610 mm
Ground contact area	7,527 in²	48560 cm²
Ground pressure (tractor)	15.6 psi	108 kPa / 1.10 kg/cm²
Number of track rollers		8
Number of carrier rollers		2
Extreme service shoes:	Ground contact area:	Ground** pressure:
24'' / 610 mm Additional weight - 0 lb / 0 kg	7,527 in² 48560 cm²	21.0 psi 1.48 kgf/cm² / 145 kPa
28'' / 710 mm Additional weight - 1,500 lb / 680 kg	8,760 in² 56520 cm²	18.2 psi 1.28 kgf/cm² / 126 kPa
32'' / 810 mm Additional weight - 3,000 lb / 1360 kg	9,990 in² 64480 cm²	16.0 psi 1.13 kgf/cm² / 111 kPa
** Ground pressure based on tractor, Semi-U tilt dozer, giant ripper, cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.

Coolant and Lubricant Capacity (refill)

Fuel tank	317.0 U.S. gal	1200 ltr
Coolant	31.7 U.S. gal	120 ltr
Engine	22.7 U.S. gal	86 ltr
Torque converter, transmission, bevel gear, and steering system	39.6 U.S. gal	150 ltr
Final drive (each side)	17.1 U.S. gal	65 ltr

Operating Weight

Tractor weight Including rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.	117,290 lb	53200 kg
Including Semi-U tilt dozer, giant ripper, cab, ROPS, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.	157,940 lb	71640 kg
Ground pressure	21.0 psi	1.48 kg/cm² / 145 kPa

Hydraulic System

Hydraulic control unit:
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit::
All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (discharge flow) of 366 ltr/min / 96.7 U.S. gal/min for implement at rated engine rpm.
Relief valve setting . . . for implement	3,980 psi	27.5 MPa 280 kg/cm²
Control valves:
Spool control valves for Semi-U tilt dozer and Full-U tilt dozer.
• Blade lift		Raise, hold, lower, and float
• Blade tilt		Right, hold, and left
Additional control valve required for variable digging angle multi-shank ripper and giant ripper.
• Ripper lift		Raise, hold, and lower
• Ripper tilt		Increase, hold, and decrease
Hydraulic cylinders: Double-acting, piston	Number of cylinders:	Bore:
• Blade lift	2	5.5" / 140 mm
• Blade tilt	1	7.1" / 180 mm
• Ripper lift	2	7.9" / 200 mm
• Ripper tilt	2	7.1" / 180 mm
Hydraulic oil capacity (refill):
Semi-U dozer or U dozer	34.4 U.S. gal	130 ltr
Ripper equipment (additional volume):
Giant ripper (variable)	11.9 U.S. gal	45 ltr
Multi-shank ripper (variable)	11.9 U.S. gal	45 ltr