Factory Installed Machine Control Components Machine control components are factory installed and designed as an integral part of the base machine for improved durability. Komatsu Quality Machine control components and system validated to Komatsu’s rigorous quality & durability standards. Industry Standard Compatibility Machine control system makes use of common industry design data file norms and supports typical base station communication. Simple Operator Interface Simple touch screen control box with multi-color customizable display. 3D GNSS Machine Control Standard All on-machine components standard including control box, GNSS receiver/ radio, GNSS antenna, and enhanced inertial measuring unit sensor. Finish Grade Performance Enhanced sensor package and intelligent logic provides for finish grade accuracy in an integrated system without traditional blade mounted sensors. Stroke Sensing Hydraulic Cylinders Robust stroke sensing hydraulic cylinders employee proven Komatsu sensor technologies for accurate finish grade performance. Enhanced Inertial Measuring Unit (IMU+) Chassis mounted enhanced inertial measuring unit (IMU+) and intelligent logic provides for finish grade accuracy without blade mounted sensors. Cab Top GNSS Antenna No blade mounted GPS antennas, cables to worry about damaging with cab top GNSS antenna. Automatic Dozing From Start To Finish Load control intelligence controls blade elevation to improve productivity and minimize track slip by adjusting blade load. 10’ from grade or 0.1” from grade – you can run in auto mode. Intelligent Dozing Mode Settings Operators are able to select between 4 distinct machine control operating modes to optimize performance to the application whether cutting, spreading, or other. Operator Selectable Load Settings Machine control load settings can be adjusted between presets to tailor response to material conditions.

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.)

83"

2.1 m

Steering System

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

83"

2.1 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)	24"	600 mm
Ground contact area	4,836 in²	31200 cm²
Ground pressure (with dozer, ROPS canopy):	8.08 psi	55.7 kPa 0.57 kgf/cm²
Track gauge	6'3"	1900 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

Tractor weight:		Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
D61EXi-23	39,264 lb	17810 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.
D61EXi-23	39,441 lb	17890 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