New Power and Economy modes: Full power when you need it and Economy mode to save fuel when you don't. New engine and hydrostatic pump control technology improves operational efficiency and lowers fuel consumption. SAA6D107E-2 variable geometry turbocharged and aftercooled 6.7 liter diesel engine provides excellent fuel economy. 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. Rear hydraulics (standard) Rear view monitoring system (standard) Advanced diagnostic system continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting. Integrated ROPS cab features: ■ Large, quiet, and pressurized cab ■ Excellent visibility with integrated ROPS structure ■ New heated air-ride seat with 15% higher capacity Improved durability ■ Heavy-plate steel used throughout ■ Dozer frame with full steel castings ■ New HD final drives with triple labrynth seals ■ Komatsu designed and manufactured components Parallel Link Undercarriage System (PLUS) provides up to double the wear life and lower repair & maintenance costs. Self-adjusting idler support provides constant and even idler tension, reducing vibration and increasing undercarriage life. Power Angle Tilt (PAT) dozer with manually adjustable blade pitch increases productivity in a variety of applications. Complete operator blade control ■ Palm Command Control System (PCCS) ■ Electronic Proportional Control (EPC) ■ Adjustable Quick shift and Variable shift modes ■ New blade angle switch New more efficient HST with electronic control ■ Customizable Quick shift (3 speed) settings for the operator ■ Variable speed selection (20 speeds) ■ Low speed matching technology (larger displacement pumps/efficient engine speed) Large color monitor ■ Easy-to-read and use large 7" high-resolution multi-color monitor ■ ECO guidance ■ On-board diagnostics Enhanced provision for Topcon^® machine control (standard) Easy bolt-on finishing kit makes machine Topcon® plug-and-play. 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 SAA6D107E-2*
Type		4-cycle, water-cooled, direct injection
Aspiration		Komatsu variable geometry Turbocharged, air-to-air 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 and mid-range, electronic
Horsepower:
SAE J1995 - Gross	170 HP	127 kW
(ISO 14396	169 HP	126 kW
ISO 9249 / SAE J1349 - Net	168 HP	125 kW
Rated rpm		2200 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubricationn
Filter		Full-flow

Hydrostatic Transmission

Travel speed (quick shift mode)*	Forward	Reverse
1st	0-3.4 km/h 0-2.1 mph	0-4.1 km/h 0-2.5 mph
2nd	0-5.6 km/h 0-3.5 mph	0-6.5 km/h 0-4.0 mph
3rd	0-9.0 km/h 0-5.6 mph	0-9.0 km/h 0-5.6 mph
Travel speed (variable mode)	0-9.0 km/h 0-5.6 mph	0-9.0 km/h 0-5.6 mph
*Quick shift speeds are adjustable in the monitor.

Final Drive

Minimum turning radius (as measured by track marks on the ground at pivot turn.)

91"

2.3 m

Steering System

Minimum turning radius (as measured by track marks on the ground at pivot turn.)

91"

2.3 m

Undercarriage

Suspension		Oscillating-type with equalizer bar and pivot shafts
Track roller frame		Monocoque, large section, durable construction
Rollers and idlers		Lubricated track rollers
Lubricated tracks	Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs.	Track tension is easily adjusted with grease gun.
Number of track rollers (each side)		8
Type of shoes (standard)		Single grouser
Number of shoes (each side)		46
Grouser height	2.3"	57.5 mm
Shoe width (standard)	34"	860 mm
Ground contact area	8,451 in²	54520 cm²
Ground pressure (with dozer, ROPS canopy):	4.87 psi	33.6 kPa 0.34 kgf/cm²
Track gauge	7'0"	2130 mm
Length of track on ground	10'5"	3161 mm

Service Refill Capacities

Coolant	11.9 U.S. gal	45 ltr
Fuel tank	98.3 U.S. gal	372 ltr
Engine oil	7.2 U.S. gal	27 ltr
Hydraulic tank	26.7 U.S. gal	101 ltr
Final drive (each side)	2.2 U.S. gal	8.1 ltr

Operating Weight (APROXIMATE)

Tractor weight:		Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
D61PX-23	38,581 lb	17500 kg
Operating weight:		Including Power Angle Tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.
D61PX-23	41,138 lb	18660 kg

Hydraulic System

Relief valve setting	3,974 psi	280 kg/cm² 27.4MPa
Hydraulic cylinders		3,974
Hydraulic cylinders:	Number of cylinders	Bore
Blade lift	2	4" 100 mm
Blade tilt	1	5" 120 mm
Blade angle	2	4" 100 mm
Hydraulic oil capacity (refilling):
Power angle tilt dozer	26.7 U.S. gal	101 ltr
Control valves:
3-spool control valve for Power Angle Tilt dozer
Positions:
Blade lift		Raise, hold, lower, and float
Blade tilt		Right, hold, and left
Blade angle		Right, hold, and left
Additional control valve required for ripper
Positions:
Ripper lift		Raise, hold, and lower