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Dozer Series D39PX-23
Features
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.
SAA4D95LE-6 variable flow turbocharged and aftercooled 3.26 liter diesel engine provides excellent fuel economy. This engine is EPA Tier 4 Interim and EU Stage 3B emissions certified.
Variable Flow Turbocharger uses a simple valve to provide optimum air flow under all speed and load conditions.
Komatsu Diesel Oxidation Catalyst reduces particulate matter using passive regeneration 100% of the time. No active or manual regeneration is required.
Rear view monitoring system (standard)
Advanced diagnostic system continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting.
Single pedal can act as either brake or Decelerator
Improved Cooling System
■ Electronically controlled hydraulically driven fan is manually reversible
■ Gas assisted lift cylinders on radiator cover opens for easy cleaning
■ Side-by-side coolers with increased cooling capacity
Integrated ROPS cab features:
■ Large, quiet, and pressurized cab
■ Excellent visibility with integrated ROPS structure
■ New heated air-ride seat with 15% higher capacity (standard)
■ Standard aux jack and (2) 12V power convertors
Improved durability
■ Heavy-plate steel used for nose and tanks
■ Dozer frame with full steel castings
■ Komatsu designed and manufactured components
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.
■ Three mounting locations for grade control masts
Complete operator blade control
■ Palm Command Control System (PCCS)
■ Electronic Proportional Control (EPC)
■ Adjustable Quick shift and Variable shift modes
■ New blade angle switch
■ Normal and Fine blade controls
■ Multiple Operator memory storage
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)
■ Up to 20%* reduced fuel consumption in E mode and 10%* in P mode.
Large color monitor
■ Easy-to-read and use large 7" high-resolution multi-color monitor
■ ECO guidance
■ On-board diagnostics
Specifications
| Engine | ||
| Model | Komatsu SAA4D95LE-6* | |
| 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 (reversible) | |
| Lubrication system: | ||
| Method | Gear pump, force lubrication | |
| Filter | Full-flow | |
| *EPA Tier 4 Interim and EU stage 3B emissions certified | ||
| 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. | ||
| 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. | ||
| Final Drive | ||
| In-shoe mounted axial piston type travel motors with integrated two stage planetary gear reduction. Compact in-shoe mount reduces risk of damaged by debris. Bolt-on sprocket ring. | ||
| Steering System | ||
| Palm Command Control System (PCCS) joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation. | ||
| Hydrostatic Transmission (HST) provides smooth powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed. | ||
| Minimum turning radius: | 94" | 2.4 m |
| As measured by track marks on the ground at pivot turn. | ||
| Undercarriage | ||
| 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 | 2.1" | 53 mm |
| Shoe width (standard) | 25" | 635 mm |
| Ground contact area | 4,616 in² | 29782 cm² |
| Ground pressure | ||
| (with dozer, ROPS cab) | 4.70 psi | 0.33 kgf/cm² / 31.7 kPa |
| Track gauge | 5'11" | 1810 |
| Length of track on ground | 7'8" | 2345 mm |
| Service Refill Capacities | ||
| 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 |
| 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. | |
| ROPS cab | 18,982 lb | 8610 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. | |
| ROPS cab | 21,675 lb | 9830 kg |
| 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 | 3.5" | 90 mm |
| Blade angle / 2 | 3.1" | 80 mm |
| Blade pitch | 1 adjustable linkage | |
| Hydraulic oil capacity (refill): | ||
| Power angle tilt dozer | 15.9 U.S. gal | 60 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 |