349D L^Non-Current

Performance

The 349D L is equipped with a 283 kW (380 hp) C13 engine with ACERT™ Technology. ACERT Technology is a differentiated technology that reduces emissions at the point of combustion. The technology capitalizes on Caterpillar's proven leadership in three core engine systems: fuel, air, and electronics.

Fuel System

The Cat® C13 features electronic controls that govern the mechanically actuated unit fuel injection (MEUI) system. MEUI provides the high pressure required to help reduce particulate emissions and deliver better fuel economy through finer fuel atomization and more complete combustion.

ADEM™ A4 Engine Controller

The ADEM™ A4 electronic control module manages fuel delivery to get the best performance per liter or gallon of fuel used. The engine management system provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It tracks engine and machine conditions while keeping the engine operating at peak efficiency.

Turbocharger

The Cat C13 uses a wastegate turbocharger for improved performance. The wastegate valve controls excessive engine boost pressure by allowing exhaust to bypass the exhaust-side turbine. The wastegate also reduces turbine wear in high RPM, low-load conditions and optimizes air and fuel delivery for peak engine performance. Also, the turbocharger increases the density of the air, enabling the engine to produce more power with few effects from altitude.

Low Sound and Vibration Levels

Rubber isolating mounts matched with the engine package provide optimum sound and vibration reduction. Further noise reduction is achieved through design changes to the isolated top cover, oil pan, multiple injection technology, insulated timing cover, and sculpted crankcase.

Air Cleaner

The radial seal air filter features a double-layered filter core for more efficient filtration. A warning is displayed on the monitor when dust accumulates above a preset level.

Cooling System

The cooling fan is hydraulically driven with variable speed control based on the ambient temperature, coolant temperature, and hydraulic oil temperature. This unique feature assists in the management of engine power and improves noise efficiency while providing optimized cooling.

Pilot System

The independent pilot pump controls the front linkage, swing, and travel operations. The pilot control valve operation is proportional to lever movement, delivering outstanding controllability.

Component Layout

The component location and hydraulic system design provide the highest level of system efficiency. The main pumps, control valve, and hydraulic tank are located close together, making it possible to use shorter tubes and lines between components to reduce friction losses and pressure drops.

Heavy Lift Standard

The operator can select the heavy lift mode at the push of a button to boost lifting capability and provide improved controllability of heavy loads.

Hydraulic Cross-Sensing System

The hydraulic cross-sensing system utilizes each of two hydraulic pumps to 100 percent of engine power under all operating conditions. This improves productivity with faster implement speeds and quicker, stronger pivot turns.

Boom and Stick Regeneration Circuits

A hydraulically operated stick regeneration circuit saves energy and improves multi-function performance during the stick-in operation. The boom regeneration circuit is operated electrically and is managed by the machine ECM. The system improves cycle times and fuel efficiency, increasing productivity and reducing operating costs.

Boom and Swing Priority

The hydraulic system on the 349D L provides automatic priority function for boom-up and swing operations, eliminating the need for work mode buttons. When the boom or swing lever is activated, the system automatically assigns priority based on operator demand.

Hydraulic Cylinder Snubbers

Snubbers are located at the rod end of the boom cylinders and both ends of the stick cylinders to cushion shocks while reducing sound levels and extending component life.

Cab Design

The workstation is spacious, quiet, and comfortable, assuring high productivity during a long work day. The air conditioner and attachment switches are conveniently located on the right-hand wall, and the key switch and throttle dial are on the right-hand console. To enhance operator comfort and productivity, the cab includes a drink holder, coat hook, service meter, literature holder, and storage compartment.

Monitor Display Screen

The compact, full-color Liquid Crystal Display (LCD) shows machine maintenance, diagnostic, and prognostic information in 27 languages. The keypad allows the operator to select machine operation conditions and to set view preferences.

Console

The consoles feature a simple, functional design to reduce operator fatigue, ease of switch operation, and excellent visibility. Both consoles have attached armrests with height adjustments.

Controls

Pilot-operated control levers feature a longer vertical stroke to help reduce operator fatigue.

Seat

A high-back, heated air suspension seat allows for a variety of adjustments to suit the operator's size and weight.

Climate Control

Positive filtered ventilation with a pressurized cab comes standard. Fresh air or recirculated air can be selected with a switch on the left console.

Cab Exterior

Thick steel tubing along the bottom perimeter of the cab improves resistance to fatigue and vibration. This design allows the FOGS to be bolted directly to the cab - at the factory or as an attachment later - to enable the machine to meet specifications and job site requirements.

Cab Mounts

The cab shell is attached to the frame with viscous rubber cab mounts, which dampen vibrations and sound levels while enhancing operator comfort.

Windows

The upper front windshield opens, closes, and stores on the roof above the operator with a one-touch action release system. An enlarged skylight with sunshade provides excellent visibility and good ventilation.

Undercarriage Options

Track with Positive Pin Retention 2 (PPR2) and cast idlers are available as attachments on the 349D L. The PPR2 prevents loosening of the track pin from the track link, and the cast idler is designed for extended life. Both options are ideal for extreme applications or those that require a large amount of travel.

Travel Motors

Two-speed hydraulic motors provide the 349D L drive power and speed selection. When the high-speed position is selected, the machine automatically changes between computer-controlled high and low speeds depending on drawbar pull requirements.

Straight-line Travel Circuit

The straight-line travel circuit is incorporated into the hydraulic system, which maintains low-speed, straight-line travel - even when operating the front linkage.

Final Drive

The three-stage final drive is a complete and compact drive/brake unit that delivers excellent performance and reliability.

Track

The 349D L comes standard with a grease-lubricated track called GLT4. The track links are assembled and sealed with grease to decrease internal bushing wear, reduce travel noise, and lower operating costs by extending service life. The track link for the 349D L has been redesigned to avoid the concentration of stresses and improve durability and reliability.

Track Guards

The idler guard and bolt-on center guard are standard equipment. They help maintain track alignment while traveling or working on slopes. For applications that require additional track protection or alignment, optional guards are available.

Carbody

The 349D L has one undercarriage option to meet regional transportation requirements and application need: Fixed gauge for narrow transport and weight-sensitive areas. The carbody utilizes a columnless design that allows the swing bearing to be directly mounted on the top plate for excellent rigidity and strength.

Upper Frame

The rugged main frame is designed for maximum durability. Robot welding is used for consistent high-quality welds. The main channels are box sections connected by a large diameter tube in the boom foot area to improve rigidity and strength. The outer frame utilizes curved side rails for rigidity against bending and torsional loads.

Counterweights

The 349D L has several counterweight options to best match the machine to specific applications. A counterweight removal device is available for the 8.7 mt (19,180 lb) counterweight to facilitate transport when needed.

Track Roller Frame

Fixed gauge undercarriage uses a press-formed, pentagonal section for the track frame that is robot welded for consistency and quality. The track frame has been designed so that the top of the track frame has a steep angle to help prevent accumulation of mud and debris.

Front End Attachment Versatility

The ability to select different front end attachments provides adaptability for a wide range of job conditions in a variety of applications such as construction, mining, or quarry. Depending on the configuration and material density, the 349D L can be matched with the 730 to 740 articulated trucks. Additionally, systems match offers versatility in job setup whether top loading or same-level truck loading.

Optimum Pass Match Design

Matched with the Cat 735, the 349D can load the truck in five to six passes under two minutes, delivering maximum system production at the lowest cost per ton of material moved.

Maximum Availability

New standards for durability and reliability help ensure that your loading system has more uptime, operates efficiently, and provides lasting value and high resale.

Front Linkage Attachments

Two booms and four sticks are available, offering a range of configurations suitable for a wide variety of application conditions.

Boom Construction

The 349D L booms have large cross sections and internal baffle plates to provide long life and durability. Forged steel is used in critical high-load areas such as the boom foot and boom cylinder connection.

HD Reach Boom - 6.9 m (22'8") Long

The HD reach boom is designed to balance reach, digging force, and bucket capacity, making it ideal for a wide range of applications.

Mass Excavation Boom - 6.55 m (21'6") Long

The mass boom is designed to provide maximum digging forces, bucket capacity, and truck loading productivity. The mass boom comes with two stick options for further job site versatility.

Stick Construction

The 349D L sticks are made of high-tensile-strength steel using a large box-section design, interior baffle plates, and an additional bottom guard.

Power Link

The 349D L power link improves durability, increases machine lifting capability in key lifting positions, and is easier to use compared to the previous lift bar designs.

Work Tools

An extensive range of Cat Work Tools for the 349D L includes buckets, hydraulic hammers, multi-processors, scrap and demolition shears, contractors' grapples and rippers. Each is designed to optimize the versatility and performance of your machine.

Buckets

Next Generation Cat buckets are designed as an integral part of the 349D system and feature new geometry for better performance. The leading edge has been pushed forward, resulting in more efficient filling and better operator control for greatly improved productivity. Wear coverage, side cutter and sidebar protector coverage are improved. Four standard bucket categories are available. Each is based on intended bucket durability when used in recommended application and material.

Couplers

Quick couplers allow one person to change work tools in seconds for maximum performance and flexibility on a job site. One machine can move rapidly from task to task, and a fleet of similarly equipped machines can share a common work tool inventory. The dedicated coupler engages tools equipped with dedicated coupler hooks. Tip radius of dedicated coupler buckets is identical to pin on buckets. Full breakout force is available at all times.

Hydraulic Kits

Cat offers field-installed hydraulic kits that are uniquely designed to integrate Cat Work Tools with Cat excavators. Hoses and tubes are pre-made, pre-shaped, and pre-painted to make installation quick and easy.

Visibility

An optional rear vision camera and work area vision system can be installed to improve safety for the operator as well as other machines and personnel working around the excavator.

Safe Access

Handrails and anti-slip surfaces are designed for safe access on and off Cat machines. Daily maintenance service checks are easily accessible at ground level. An emergency escape is accessed through the rear window.

Safety Alarm

If an abnormality occurs, the warning information window is displayed on the monitor. If the abnormality is urgent, the master light blinks and an alarm activates, alerting the operator to take immediate action.

Emissions

With ACERT Technology to lower emissions, the C13 engine improves maintenance costs through less engine wear and less oil consumption. This engine can use up to B30 biodiesel to further reduce emissions on the job site.

Fuel Management

A fuel consumption display allows the operator to monitor their fuel consumption. Three power management modes allow the operator to select a mode for optimal performance with lower fuel consumption.

Fluids

Extended service and maintenance intervals increase machine availability and reduce the frequency of fluid handling. Cat biodegradable hydraulic oil is fully decomposed by soil or water microorganisms for a cleaner job site.

Cat Reman Parts

Cat Reman parts offer the same performance and quality as new parts at a fraction of the cost. Environmentally reconditioned reman parts are available for this machine.

Tool Control System

The optional tool control system maximizes work tool productivity by configuring hydraulic flow, pressure, and operator controls to match a specific work tool. System versatility enables a wide range of tools to be used.

Auxiliary Hydraulic Valve

A hydraulically controlled auxiliary valve is standard on the 349D L. Control circuits are available as attachments, allowing operation of high- and medium-pressure tools such as shears, grapples, hammers, pulverizers, multi-processors, and vibratory plate compactors.

Product Link

Product Link is now standard on the 349D L. The optional levels of service, including Asset Watch, Maintenance Watch, and Health Watch, allow you to monitor and maintain your equipment for the lowest operating cost.

Control Levers

Three types of tool controls are available to meet the operator's individual preference.
• Foot Pedal - The hydraulic modulated foot pedal is used in conjunction with the hydraulic controller.
• Foot Switch - The electric on/off switch pedal is used in conjunction with either the hydraulic controller or attachment controller. The foot switch is located on cab floor.
• Tool Controller Joystick - Two types of the tool controller joysticks are available. The joystick with the modulation switch has two on/off switches, one trigger switch, and one modulation switch. The joystick without the modulation switch has three on/off switches and one trigger switch.

Machine Security

An optional Machine Security System is available from the factory on the 349D L. This system controls when the machine can be operated and utilizes specific keys to prevent unauthorized machine use - a significant theft deterrent.

Extended Service Intervals

Extended service and maintenance intervals increase machine availability. The maintenance intervals for engine oil and engine oil filter have been extended to 500 hours.

Capsule Filter

The hydraulic return filters are located in the hydraulic tank. The filter elements are removable without spilling hydraulic oil.

Pilot Hydraulic System Filter

The pilot hydraulic system filter keeps contaminants from the pilot system and is located in the pump compartment.

Radial Seal Main Air Cleaner

The radial seal main air cleaner with precleaner has a double-layered filter element for more efficient filtration. No tools are required to change the element.

Fuel-Water Separator

The water separator has a primary fuel filter element and is located in the battery compartment for easy access from the ground.

Service Points

Service points are centrally located with easy access to facilitate routine maintenance.

Oil Sample and Pressure Ports

Oil sample and pressure ports provide easy checking of machine condition and are standard on every machine.

Greasing Points

A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations.

Product Support

Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine downtime. You can also save money with Cat remanufactured components.

Machine Selection

Make detailed comparisons of the machines you are considering before you buy. What are the job requirements, machine attachments, and operating hours? What production is needed? Your Cat dealer can provide recommendations.

Purchase

Look past initial price. Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run.

Customer Support Agreements

Cat dealers offer a variety of product support agreements and work with customers to develop a plan that best meets specific needs. These plans can cover the entire machine, including attachments, to help protect your investment.

Operation

Improving operating techniques can boost your profits. Your Cat dealer has videotapes, literature, and other ideas to help you increase productivity, and Caterpillar offers certified operator training classes to help maximize the return on your investment.

Maintenance Services

Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as scheduled oil sampling, coolant sampling, and technical analysis help you avoid unscheduled repairs.

Replacement

Repair, rebuild, or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.