D39EX-22
12Pages

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Catalog excerpts

D39EX-22 - 1

NET HORSEPOWER 79 kW 105 HP @ 2200 rpm OPERATING WEIGHT D39EX-22: 9450 kg 20,834 lb D39PX-22: 9890 kg 21,804 lb D39EX-22 D39PX-22 With Hydrostatic Transmission (HST) CRAWLER DOZER Photos may include optional equipment

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D39EX-22 - 2

CRAWLER DOZER WALK-AROUND The D39-22 is the next addition to an all new HST dozer line based on the D51-22 design concepts. Some of these concepts include Super-slant nose, large mid-mount cab, and durable construction. All-around Visibility Improved Durability • Super-slant nose design • Cab-forward design • Integrated ROPS/FOPS (Level 2) Increased Productivity • • • • • Highest HP in its class Electronically-controlled hydraulically-driven fan Rigid track frame with in-shoe final drive High capacity Power Angle Tilt dozer blade Adjustable blade pitch Easy Operation/Increased Operator...

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D39EX-22 - 3

D39-22 NET HORSEPOWER 79 kW 105 HP @ 2200 rpm OPERATING WEIGHT D39EX-22: 9450 kg 20,834 lb D39PX-22: 9890 kg 21,804 lb Photos may include optional equipment

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D39EX-22 - 4

CRAWLER DOZER Unrivaled blade visibility Just like the D51EX/PX-22, the D39EX/PX-22 incorporates Komatsu’s super-slant nose design. Komatsu’s innovative design provides excellent blade visibility for improved machine control and increased efficiency and productivity. 4

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D39EX-22 - 6

CRAWLER DOZER OPERATOR COMFORT HST with electronic control The D39 is equipped with a Komatsu-designed Hydrostatic Transmission (HST), similar to the D51, that allows for Quick-Shift (3 speed) or variable (20 speed) selection. The HST consists of dual-path closed-circuits with two variable displacement piston pumps and two variable displacement travel motors. Hydrostatic steering eliminates steering clutches and brakes, providing smooth powerful turns. Fully electronic control provides automatic shifting and enables smooth operation. Engine speed is controlled using an electronic fuel...

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D39EX-22 - 7

DURABILITY FEATURES Heavy-duty undercarriage Modular design Large links, large bushing diameters, and wide sprocket teeth extend undercarriage life. Just like the D51, one of the design goals behind the creation of the D39 was to manufacture a more durable machine. This was achieved by reducing component complexity and using a strong modular design for increased serviceability and durability. Durable and reliable main frame Komatsu welds the track frames to the main frame with large connecting bars and weldments, providing the ideal stiffness required in a finish crawler dozer. The track...

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D39EX-22 - 8

CRAWLER DOZER PRODUCTIVITY FEATURES This engine is EPA Tier 3 and EU Stage 3A emissions certified; "ecot3" - ecology and economy combine with Komatsu technology to create a high performance engine without sacrificing power or productivity. Fuel efficient electronic controlled engine The Komatsu SAA4D107E-1 engine delivers a net output of 79 kW 105 HP at 2200 rpm. The powerful Komatsu engine incorporated into the D39-22 makes this dozer fuel efficient and the logical choice in both grading and dozing operations. The engine is turbocharged and features direct fuel injection and air-to-air...

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D39EX-22 - 9

MAINTENANCE FEATURES Hydraulically-driven swing-up fan Daily checks The D39-22 utilizes a swing-up fan with a gas strut-assisted lift locking system to provide easy access to the (side-byside) radiator, oil cooler, and charge air cooler. The swing-up feature makes it easier to access cooling cores. The hydraulic fan has a “cleaning” mode. The fan rotates in the reverse direction and helps to clear off objects in front of the cooling areas. The fan is protected by thick steel louvers and an additional fan screen for added durability. All daily checks can be performed efficiently at ground...

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D39EX-22 - 10

CRAWLER DOZER SPECIFICATIONS ENGINE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA4D107E-1* Type . . . . . . . . . . . . . . . . . . . . . . 4-cycle, water-cooled, direct injection Aspiration . . . . . . . . . . . . . . . . . . . Turbocharged, air-to-air aftercooled Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Bore x stroke . . . . . . . . . . . . . . . . . . 107 mm x 124 mm 4.21" x 4.88" Piston displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.46 ltr 272 in3 Governor . . . . . . . . . . ....

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D39EX-22 - 11

HYDRAULIC SYSTEM Closed-center Load Sensing System (CLSS) designed for precise and responsive control and for efficient simultaneous operation. Hydraulic oil capacity (refilling): Power angle tilt dozer. . . . . . . . . . . . . . . . . . . . . . . 60 ltr 15.9 U.S. gal 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 26.2 U.S. gal/min at rated engine rpm. Control valves: 3-spool control valve for power angle tilt dozer. Positions: Blade lift . . . . . . . . . . . . . . . ....

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D39EX-22 - 12

STANDARD EQUIPMENT FOR BASE MACHINE ENGINE AND RELATED ITEMS • Air cleaner, dry, double element type with caution lamp on monitor • Decelerator pedal • Engine, KOMATSU SAA4D107E-1, net output of 79 kW 105 HP direct injection, turbocharged, air-to-air aftercooler, EPA Tier 3 emissions certified • Fan, hydraulic driven, electronic control, reversible for cleaning • Fuel pre-filter (10 micron) and fuel filter (2 micron) • Grid heater • Intake pipe with precleaner • Radiator mask grid • Radiator reserve tank • Water separator ELECTRIC SYSTEM • Back-up alarm • Batteries, large capacity 92 Ah •...

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