340D2 L structural components and undercarriage are the backbone of the machine’s durability.
With a long, heavy-duty, high-wide (HDHW) undercarriage, the machine can take full advantage of its fast implements. This unique undercarriage also improves lifting performance over the front and side of the machine.
High level of sustained production, improved performance, reliability and durability increase your productivity and lower your operating costs.
Engine and Hydraulics
A powerful Cat C9 ACERT engine that meets EU Stage II equivalent emission standards combined with the highly efficient hydraulic system delivers excellent performance with low fuel consumption.
A variety of work tools, including buckets, hammers, rippers are available for applications such as demolition, site clean-up, scrap processing, breaking up road surfaces and bedrock through Cat Work Tools.
The spacious cab features excellent visibility and easy-to-access switches. The monitor features a full‑color graphical display that is easy to see and use. Overall, the new cab provides you with a comfortable working environment for maximum production and efficiency.
Driving Unprecedented Performance with Lower Fuel Consumption
The Cat C9 ACERT engine has been designed to meet Stage II equivalent emission standards. The engine incorporates proven robust components and precision manufacturing you can count on for reliable and efficient operation.
The C9 ACERT engine features an improved filtration system to ensure reliability even with less-than-quality fuel. Service intervals have been extended and the number of filters reduced to maximize your profit potential.
Automatic Engine Speed Control
Automatic engine speed control is activated during no-load or light-load conditions to reduce engine speed – all to help minimize fuel consumption.
Low Sound and Vibration
The Cat C9 ACERT engine is built to run quietly with limited vibration, which contributes to improving your comfort.
Joystick Control and Console
Low-effort pilot-operated joystick controls are designed to match your natural wrist and arm position for maximum comfort and minimum fatigue. The right and left joystick console can be adjusted to meet your individual preferences, improving overall comfort and productivity during the course of a long work day.
Windows and Wipers
All glass is affixed directly to the cab to maximize visibility, eliminating window frames. The upper front windshield opens, closes, and stores on the roof above the operator with a one-touch action release system. Pillar-mounted wipers increase your viewing area and offer continuous and intermittent modes.
The monitor is a full-color Liquid Crystal Display (LCD) that can be adjusted to minimize glare, and it has the capability of displaying information in 28 languages to meet the needs of today’s diverse work force.
The suspension seat provides a variety of adjustments to accommodate a wide range of operators. All seats include a reclining back, upper and lower seat slide adjustments, and height and tilt adjustments to meet your needs for comfort and productivity.
Positive filtered ventilation with a pressurized cab is standard. Fresh air or re-circulated air can be selected with a switch on the left console.
Cab Structure and Mounts
The cab shell is attached to the frame with viscous rubber mounts, which dampen vibrations and sound levels while enhancing your comfort. Thick steel tubing along the bottom perimeter improves the cab’s resistance to fatigue and vibration.
Hydraulic system pressure from the two hydraulic pump system delivers terrific digging performance and productivity.
An independent pilot pump enables smooth, precise control for the front linkage, swing, and travel operations.
The hydraulic system and component locations have been designed to provide a high level of system efficiency. The main pumps, control valves, and hydraulic tank are located close together to allow for shorter tubes and lines between components, reducing friction loss and pressure drops.
Auxiliary Hydraulic Valve
Control circuits are available as attachments to improve versatility. They allow operation of pressure tools.
Boom and Stick Regeneration Circuit
Boom and stick regeneration circuits save energy during boom-down and stick-in operation to increase efficiency and reduce cycle times and pressure loss for higher productivity, lower operating costs, and increased fuel efficiency.
Up to 95% of the structural welds on a Cat Excavator are completed by robots. Robotic welds achieve over three times the penetration of manual welds.
Long, Heavy-Duty, High-Wide (HDHW) Undercarriage
The HDHW undercarriage maximizes stability and lift capacity over the front and side, compared to a standard long undercarriage.
The higher ground clearance is ideal in rocky environments, bringing the carbody and upperframe in safer high position.
The durable X-shaped box-section carbody absorbs stresses, and provides excellent resistance to torsional bending.
Robot-welded track roller frames are press-formed, pentagonal units to deliver exceptional strength and service life.
Rollers and Idlers
Sealed and lubricated track rollers, carrier rollers, and idlers provide excellent service life, to keep the machine in the field longer.
The 340D2 L track links are assembled and sealed with grease to decrease internal bushing wear, reduce travel noise and extend service life lowering operating costs.
The 6.25 mt and 8.45 mt counterweights are bolted directly to the main frame for extra rigidity.
The 8.45 mt HD counterweight makes a better choice for heavy lifting applications that require additional machine stability, especially with Mass Excavation front parts.
Heavy-duty Front Linkage
The 6.5 m (21'4") heavy-duty (HD) reach boom is reinforced to be used in the severest applications for maximum digging capability. The boom is made of high-tensile-strength steel using a large box-section design with interior baffle plates and an additional bottom guard for long life and durability.
The 3.2 m (10'6") heavy-duty (HD) stick is a versatile option that will meet the needs for most construction applications.
Mass Excavation Front Linkage
The mass excavation (ME) front linkage is designed to maximize machine performance through superior digging forces and a larger bucket capacity.
The 6.18 m (20'3") mass excavation boom is reinforced with a large cross section and internal baffle plates for long life and durability.
The 2.55 m (8'4") and 2.15 m (7'1") sticks are designed for large earth moving and are made of high-tensile-strength steel in a box section for enhanced strength and durability.
Each Cat work tool is designed to optimize the versatility and performance of your machine. An extensive range of buckets, compactors, grapples, multi-processors, rippers, crushers, pulverizers, hammers and shears is available for your 340D2 L.
Cat buckets and Cat Ground Engaging Tools (GET) are designed and matched to the machine to ensure optimal performance and fuel efficiency.
General Duty Buckets (GD)
General Duty buckets are designed for use in low impact, lower abrasion materials such as dirt, loam, and mixed compositions of dirt and fine gravel.
Heavy Duty Buckets (HD)
Heavy Duty buckets are designed for a wide range of impact and abrasion conditions including mixed dirt, clay and rock. This bucket style is recommended for trenching work, and for the general contractor working in a variety of different applications.
Severe Duty Buckets (SD)
Severe Duty buckets are designed for higher abrasion conditions such as shot granite. When compared to the Heavy Duty bucket, wear bars and wear plates are substantially thicker and larger and add protection against abrasion and gouging wear.
Rip and Load Package
Caterpillar offers a unique Rip and Load arrangement for hydraulic excavators working in quarries that are specialists in aggregates production. Quick couplers, Ripper tines and Rock buckets that are fully compatible with the Cat Excavator range will deliver excellent ripping and loading performance. Minimum tool change times will help match ripping, loading and rock production needs. Ripper-to-bucket changes are made hydraulically in less than 35 seconds. This gives the operator complete flexibility to continually adjust ripping, sorting and loading work.
E Series Hammers
Cat E Series Hammers feature a rugged design for extended durability and solid reliability, and features such as automatic shut-off, silencing and vibration buffering make them easy on the operator. The E Series Hammers are designed to be field serviceable with common hand tools to keep them operating at peak performance.
Demolition and Sorting Grapple
The demolition and sorting grapple means considerable savings in terms of transportation and dumping costs as well as manpower, as you can now sort out demolition debris at source and transport it separately to recycling plants.
The design and layout of the 340D2 L was made with the service technician in mind. Most service locations are easily accessible at ground level to allow service and maintenance to get completed quickly and efficiently.
Air Filter Compartment
The air filter features a double-element construction for superior cleaning efficiency. When the air cleaner plugs, a warning is displayed on the monitor screen inside the cab.
A service door on the right side of the upper structure allows ground-level access to the pump, pilot filter, and water separator with primary fuel filter.
The left rear service door allows easy access to the engine radiator, oil cooler, air-to-air-aftercooler, water separator, second and third fuel filters, and fuel cooler. A reserve tank and drain cock are attached to the radiator for simplified maintenance.
A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations on the front.
The engine radiator fan is completely enclosed by fine wire mesh, reducing the risk of an accident.
Anti-skid plate covers top of storage box and upper structure to prevent slipping during maintenance.
Diagnostics and Monitoring
The 340D2 L is equipped with S∙O∙SSM sampling ports and hydraulic test ports for the hydraulic system, engine oil, and for coolant.
You will find nearly all parts at our dealer parts counter. Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine downtime. You can also save money with our line of remanufactured components.
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.
Repair option programs guarantee the cost of repairs up front. Condition monitoring services and diagnostic programs such as scheduled oil sampling, coolant sampling, and technical analysis help you avoid unscheduled repairs.
Customer Support Agreements
Cat dealers offer a variety of product support agreements and work with customers to develop a plan the best meets specific needs. These plans can cover the entire machine – including attachments – to help protect the customer’s investment.
Repair, rebuild, or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.