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Diesel Excavators combine power and interim Tier 4 compliance.

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Diesel Excavators combine power and interim Tier 4 compliance.
Diesel Excavators combine power and interim Tier 4 compliance.

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February 11, 2013 - Powered by 6-cylinder diesel engines with respective 109 and 125 hp ratings, DX140LC-3 and DX180LC-3 can be customized for various working conditions. Excavators feature electronic fan clutch, multimodal Electronic Power Optimizing System, diesel-powered coolant heater and straight travel pedal options, Intelligent Floating Boom option, and ROPS cabin. Respectively, DX140LC-3 and DX180LC-3 have max dig reaches of 28 ft. 5 in. and 29 ft. 5 in. and max dig depths 20 ft. 2 in. and 20 ft. 1 in.

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press Release

Doosan Machinery USA Inc.
35570 Mound Road
Sterling Heights, MI, 48310
USA



Doosan DX140LC and DX180LC Excavators Offer Performance Upgrades with iT4 Compliance


WEST FARGO, N.D. – The Doosan DX140LC-3 and DX180LC-3 excavators enter the market with more power, performance and speed. These interim Tier 4 (iT4) compliant machines have also been upgraded to allow operators to customize the excavator to a variety of working conditions, making these excavators ideal for rental, site development, commercial construction and highway/street development.

Powered by 6-cylinder DL06K engines, the DX140LC-3 and DX180LC-3 engines feature 109 and 125 horsepower, respectively. Both excavators use a water-cooled diesel engine that has been optimized for use with cooled exhaust gas recirculation (CEGR) system, a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). Engines with this configuration are optimized to reduce nitrogen oxides and after-treatment is needed to reduce particulate matter, to comply with iT4 emission regulations. The turbocharged engines feature a high-pressure common-rail design with direct fuel injection, electronic control and four valves per cylinder.

Performance
A new electronic fan clutch reduces fuel consumption and noise levels, while providing cooling system improvements. The Electronic Power Optimizing System (EPOS) provides optimum power and fuel efficiency via four work modes, auto-idle and machine diagnostics. Operators can work more effectively with multiple operating modes, easy-to-read display monitors and precise control levers. The new Power + mode provides improved performance and faster workgroup speeds for heavy duty work. Four work modes – digging, breaker, shear and the new lifting mode – permit operators to get maximum efficiency and fuel economy in specific applications. Maximum speeds of 3.1 mph for the DX140LC-3 and 3.2 mph for the DX180LC-3 offer more efficient movement around jobsites.

Options
A diesel-powered coolant heater and straight travel pedal are offered as options for both the DX140LC-3 and DX180LC-3. The straight travel pedal allows operators to control both the left and right tracks at the same time, making it easier to travel long distances when moving the excavators on a large jobsite. Both excavators feature a new Intelligent Floating Boom option that allows the boom of the excavator to "float" up or down, letting the operator focus more on the task while decreasing the machine workload and increasing efficiency. Float mode allows the boom to move freely up and down without hydraulic flow; and in breaker mode the boom is permitted to move freely down only, without hydraulic flow. A temporary reset button allows the ability to momentarily disengage the float modes, enabling hydraulic flow to activate the boom. Also offered is an air compressor, which is ideal for operators in remote and dusty locations to clean out the cab.

Comfort
Doosan continues to focus on operator comfort with further enhancements to the Roll-Over Protective Structure (ROPS) cabin. Both a height lever and tilting function were added to the air suspension heated seat to allow the operator to find an optimum seating position. The cabin mounting mechanism has been improved with a thickened dampening plate, and an internal coil spring has been added to reduce cabin vibration 20 percent, enabling operators to work longer days with less fatigue.

The door window position slider now locks in various positions, preventing it from moving from its intended location. The door space of the cab has increased by 1.8 inches, enabling the operator to get in and out more easily. The cabin size has increased 6.1 percent, providing more headroom. The joystick angle has been reduced from 25 degrees to 19 degrees to provide a more ergonomic profile and decrease interference with operators' legs.

The Doosan DX140LC-3 and DX180LC-3 – like every new Doosan machine – are covered by an innovative 48 hour parts guarantee. The program guarantees that if a "machine-debilitating" part is needed, Doosan will deliver it directly to the end user within two business days or Doosan will pay for a replacement machine rental. The 48 Hour Parts Guarantee is subject to carrier delivery restrictions and/or governmental agency delays.

ABOUT DOOSAN INFRACORE CONSTRUCTION EQUIPMENT AMERICA
Doosan Infracore Construction Equipment America, headquartered in West Fargo, N.D., markets the Doosan brand of products which includes large excavators, wheel loaders and articulated dump trucks. With more than 160 heavy equipment dealer locations in North America, Doosan is known for an unmatched dedication to service and customer uptime, and durable, reliable products. Doosan is fast becoming a global force in heavy construction equipment. For more information on Doosan products, visit www.doosanequipment.com.

QuickLook: Doosan DX140LC-3 excavator
• Horsepower: 109 hp
• Operating weight: 31746 lb.
• Max. dig reach: 28 ft. 5 in.
• Max. dig depth: 20 ft. 2 in.
• Bucket digging force: 24471 lb.
• Arm digging force: 13228 lb.

QuickLook: Doosan DX180LC-3 excavator
• Horsepower: 125 hp
• Operating weight: 40565 lb.
• Max. dig reach: 29 ft. 5 in.
• Max. dig depth: 20 ft. 1 in.
• Bucket digging force: 28881 lb.
• Arm digging force: 20503 lb.
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