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Komatsu D39EXi-24 SMALL DOZERS

BladeCapacityMax	3.14
BladeCapacityMin	2.89
Horsepower	105 hp @ 2200 rpm
OperatingWeightMax	21848
OperatingWeightMin	21848

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Feature Parameter

Cab Top GNSS Antenna

No blade mounted GNSS antenna(s), cables to worry about damaging with cab top GNSS antenna. Reduced risk of theft due to low visibility as viewed from ground level.

Enhanced inertial measuring unit (IMU+)

Chassis mounted IMU and intelligent logic enables accurate grading performance without blade mounted sensors.

Stroke Sensing Hydraulic Cylinders

Robust stroke sensing hydraulic cylinders employ proven Komatsu sensor technologies for accurate finish grade performance. Stroke sensing angle cylinder allows machine control system to know the angle of the blade.

Engine

Model		Komatsu SAA4D95LE-7*
Type		4-cycle, water-cooled, direct injection
Aspiration		Variable flow turbocharged, air-to-air aftercooled
Number of cylinders		4
Bore x stroke	3.75" x 4.52"	95 mm x 115 mm
Piston displacement	199 in³	3.26 ltr
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	107 HP	79 kW
ISO 9249 / SAE J1349 - Net	105 HP	78 kW
Rated rpm		2200 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow
*EPA Tier 4 Final emission certified

Hydraulic System

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 remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 99 ltr/min 26 U.S. gal/min at rated engine rpm.
Relief valve setting	3,974 psi	27.4 MPa / 280 kg/cm²
Hydraulic cylinders		Double-acting, piston type
Number of cylinders:	Bore	Bore
Blade lift / 2	3"	75 mm
Blade tilt / 1	3.6"	90 mm
Blade angle / 2	3.1"	80 mm
Blade pitch		1 adjustable linkage
Hydraulic oil capacity (refill):
Power angle tilt dozer	17 U.S. gal	64 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

Hydrostatic Transmission

Dual-path, hydrostatic transmission provides infinite speed changes up to 5.3 km/h / 8.5 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.

Parameter

Model		Komatsu SAA4D95LE-7*
Type		4-cycle, water-cooled, direct injection
Aspiration		Variable flow turbocharged, air-to-air aftercooled
Number of cylinders		4
Bore x stroke	3.75" x 4.52"	95 mm x 115 mm
Piston displacement	199 in³	3.26 ltr
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	107 HP	79 kW
ISO 9249 / SAE J1349 - Net	105 HP	78 kW
Rated rpm		2200 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow
*EPA Tier 4 Final emission certified

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 remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 99 ltr/min 26 U.S. gal/min at rated engine rpm.
Relief valve setting	3,974 psi	27.4 MPa / 280 kg/cm²
Hydraulic cylinders		Double-acting, piston type
Number of cylinders:	Bore	Bore
Blade lift / 2	3"	75 mm
Blade tilt / 1	3.6"	90 mm
Blade angle / 2	3.1"	80 mm
Blade pitch		1 adjustable linkage
Hydraulic oil capacity (refill):
Power angle tilt dozer	17 U.S. gal	64 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

Travel speed (quick shift mode)*	Forward	Reverse
1st	0–2.1 mph 0–3.4 km/h	0–2.5 mph 0–4.1 km/h
2nd	0–3.5 mph 0–5.6 km/h	0–4.0 mph 0–6.5 km/h
3rd	0–5.3 mph 0–8.5 km/h	0–5.3 mph 0–8.5 km/h
Travel speed (variable mode)	Forward	Reverse
	0–5.3 mph 0–8.5 km/h	0–5.3 mph 0–8.5 km/h
*Quick shift speeds are adjustable in the monitor.

Tractor weight:	Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
	18,342 lb	8320 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.
	21,848 lb	9910 kg

Coolant	9.0 U.S. gal	34 ltr
Fuel tank	50.2 U.S. gal	190 ltr
Engine oil	2.9 U.S. gal	11 ltr
Hydraulic tank	15.8 U.S. gal	60 ltr
Final drive (each side)	0.9 U.S. gal	3.5 ltr
Diesel Exhaust Fluid (DEF)	4.1 U.S. gal	15.4 ltr

Suspension		Rigid type
Track roller frame		Monocoque, large section, durable construction
Rollers and idlers		Lubricated track rollers
Sealed and lubricated track		Track tension is easily adjusted with grease gun.
Number of track rollers (each side)		6
Type of shoes (standard)		Single grouser
Number of shoes (each side)		39
Grouser height	1.9"	47 mm
Shoe width (standard)	20"	510 mm
Ground contact area	3,707 in²	23919 cm²
Ground pressure (with dozer, ROPS cab)	5.8 psi	0.41 kgf/cm² / 40.3 kPa
Track gauge	5'4"	1620 mm
Length of track on ground	7'8"	2345 mm