315D L Hydraulic Excavator

Cab
Experience a spacious, quiet and comfortable operator station. The cab is pressurized to 50 Pa to reduce the amount of dust that enters the cab, keeping the operator comfortable the entire shift while assuring high productivity during long work days.

• The comfortable seat adjusts to suit the operator's size and weight. Available as an option is the air suspension seat.
• Standard air conditioning with automatic climate control adjusts temperature and airflow.
• Low effort joystick controls are designed to match the operator's natural wrist and arm position. Joysticks can be operated with arms on the armrest. The horizontal and vertical strokes are designed to reduce fatigue.

Prestart Check and Monitor Display
Prior to starting the machine, the system checks for low engine oil, hydraulic oil and engine coolant fluid levels and warns the operator through a color Liquid Crystal Display (LCD) monitor. The LCD monitor displays vital operating and performance information, in 27 different languages, for operator convenience.

Cab Exterior
The 315D L provides a new cab design that allows the Falling Object Guard System (FOGS) to be bolted directly to the cab, at the factory or as an attachment, enabling the machine to meet specifications and job site requirements. The cab shell is attached to the frame with viscous rubber cab mounts that dampen vibrations and sound levels to enhance operator comfort.

Machine Security System
An optional Machine Security System (MSS) utilizes a programmable key, deterring theft, vandalism and unauthorized usage. MSS uses electronically coded keys selected by the customer to limit usage by individuals or time parameters.

The Cat C4.2 Engine with ACERT Technology optimizes the performance and meets U.S. EPA Tier 3 and EU Stage IIIA regulations. In conjunction with integrated electronics, ACERT Technology reduces emissions during the combustion process by using advanced technology in the air and fuel systems. The Cat C4.2 engine has five percent more power than the former engine, allowing for more hydraulic pressure and increased productivity.

Automatic Engine Control and Fuel Delivery
A three-stage control with one-touch command maximizes fuel efficiency and reduces sound levels. Fuel delivery is managed by the ADEM A4 Engine Controller for the best performance per liter (gallon) of fuel used. Flexible fuel mapping allows the engine to respond quickly to varying application needs. Electronic controls govern the fuel injection system. Multiple injection fuel delivery involves a high level of precision and by precisely shaping the combustion cycle, lowers combustion chamber temperatures, generates fewer emissions and optimizes fuel combustion. This means more work output for your fuel cost.

Crankshaft and Pistons
A forged, one-piece, induction hardened crankshaft enhances balance, decreases vibration and improves abrasion resistance. Heat resistant, aluminum alloy pistons have a short compression height for greater efficiency and longer life.

Economy Mode
Available as a standard feature, economy mode allows you to balance the demands of performance and fuel economy while maintaining the breakout forces and lift capacity enjoyed at standard power.

Outstanding Performance
With two percent more hydraulic pressure for additional lift, swing torque and breakout forces, the 315D L hydraulic system is designed for high efficiency and performance. Auxiliary hydraulic and electrical lines are routed to the boom foot making installation of hydraulic circuits much easier. The new compact design utilizes shorter tubes and lines, reducing friction and pressure drops, resulting in a more efficient use of power.

• Hydraulic snubbers at the rod end of the boom cylinders and both ends of the stick cylinders cushion shock, reduce sound and increase cylinder life.
• Flow is reduced to a minimum when controls are in neutral to reduce fuel consumption and extend component life.
• Hydraulic Cross-Sensing System uses two hydraulic pumps to 100 percent of engine power under all operating conditions, improving productivity with faster implement speeds and quicker, stronger pivot turns.
• Improved balance and lift capacity with six percent increase in additional counterweight.

Boom and Stick Regeneration Circuit
The boom and stick regeneration circuit saves energy during boom-down and stick-in operation, increasing efficiency and lowering operating cost.

Easy Operation
Work mode and power mode switches have been eliminated making full power available at all times. Operators do not need to learn different modes, an automatic boom and swing priority function automatically selects the best mode based on joystick movement.

Caterpillar uses advanced engineering and software to analyze all structures, creating a durable, reliable machine for the toughest applications. More than 70 percent of the structural welds are robotic and achieve over three times the penetration of manual welds. These structural components and undercarriage are the backbone of the machine's durability.

Carbody Design
X-shaped, box section carbody provides excellent resistance to torsional bending. Robot-welded track roller frames are press-formed, pentagonal units that deliver exceptional strength and service life. Idler and center guards (standard for LC option) are available to help maintain track alignment when traveling or working on slopes.

Grease Lubricated Track
Grease lubricated track seals protect the track link and deliver long track link pin and bushing inner wear life.

Travel Motors
Travel motors with automatic speed selection let the 315D L automatically change up and down from high and low speeds in a smooth, controlled manner.

Built for performance and long service life, Cat booms and sticks are welded, box-section structures with thick multi-plate high strength steel fabrications. The 315D L offers one boom with four different stick options.

Intermediate Stick
A new 2.9 m (9'6") stick is available to provide long reach and increased digging and lifting capability. When equipped with a coupler or large bucket the new stick will increase overall performance and productivity.

Boom
The boom is designed for maximum digging capability and is robotic welded to endure consistent quality. This allows excellent all-around versatility and a large working envelope.

Work Tools
Caterpillar offers a variety of work tools, including Hammers, Thumbs, Grapples, Multi-processors, Shears, Pulverizers, Vibratory Compactors and Rippers to fit your application needs. Additionally a wide range of buckets are available to optimize machine performance. Auxiliary hydraulic and electrical lines are routed to the boom foot for easier installation of auxiliary hydraulic circuits, therefore, reducing time, parts and cost required to add and a work tool.

Hydraulic Pin Grabber Coupler
An optional hydraulic pin grabber is available to pick up a wide variety of work tools without having to leave the cab, thus maximizing productivity.

Enhanced Systems
Work tool functionality has increased the versatility of the machine with the enhancement of the following:

• An optional Combined System enables one or two pump flow in one or two directions. With this system, only one hydraulic circuit is required.
• The Tool Control System stores up to 10 different tool settings through the in-cab display monitor. Cat Work Tools are selectable with preset flows and pressures.
• Offered as an option, the Priority Flow system provides one-way hydraulic work tools, such as a mower, priority for hydraulic flow

Cat K Series Tooth System
The Cat K Series Tooth System provides more wear material, a longer tip and adapter life, a one-piece vertical drive retainer, reliable tip retention and easy installation and removal, improving performance and penetration.

Designed with the service technician in mind, many service locations are at ground level so critical maintenance can be done quickly and efficiently. Longer maintenance intervals reduce cost and increase machine availability.

• Oil level gauge, oil filter, fuel filter and priming pump are on the right side of the upper structure for easy maintenance.
• An optional electronic fuel water sensor is available to alert the operator when the water level is high.
• Product Link assists with fleet management by tracking hours, location and product health.
• New anti-skid plates over the top of the storage box and upper structure help prevent slipping and mud from falling into the upper structure.

Sampling Ports
Equipped with S.O.SSM sampling ports and test ports for hydraulics, engine oil and coolant for quick diagnostics. A test connection for the Cat Electronic Technician (Cat ET) service tool is now located in the cab.

Air Cleaner
A double-layered filter core in the radial seal air filter gives more efficient filtration. A warning is displayed on the monitor when dust accumulates above a preset level. This filter is conveniently located in the compartment behind the cab. An optional pre-cleaner is also available to extend filter life and reduce maintenance costs.

Capsule Filter
Capsule-type, hydraulic return filter is accessible from outside the tank and prevents contaminants from entering the system when changing the hydraulic oil.

Radiator Compartment
Horizontal air conditioner condenser swings out for easy cleaning. Removable screens are located in front of the radiator and hydraulic cooler, reducing cleaning time and effort.

AccuGrade Systems
AccuGrade Grade Control Systems are easy to use and deliver a wide range of benefits to customers, including:

• Increased productivity.
• Increased job-site safety.
• Assistance with labor shortages.
• Improved employee satisfaction and retention.
• Increased equipment versatility.
• Integration into Cat machines.

AccuGrade Site Reference System
Advanced slope and elevation guidance simplifies excavation, improves accuracy, increases efficiency and lowers production costs.

AccuGrade Laser Reference System
This system builds on the Site Reference System by using laser receivers to carry benchmark information across a large job site.

AccuGrade GPS System
GPS satellites allow for precise digging and slope control in real-time for increased accuracy and productivity.

Accugrade GPS System
GPS satellites allow for precise digging and slope control in real-time for increased accuracy and productivity.

Your Cat dealer is ready to assist you with your purchase decision and everything after.

• Make detailed comparisons of the machines you are considering before you buy with estimates of component life, preventive maintenance and the true cost of production.
• Customize the machine that is right for you using Build and Quote applications on your dealer's website or www.cat.com.
• Get the latest training literature and trained staff.
• Repair option programs guarantee the cost of repairs up front.
• Nearly all parts are available at dealer parts counters.
• Financing packages are flexible to meet your needs.
• Your Cat dealer can evaluate the cost involved in repairing, rebuilding and replacing your machine so you make the right choice.
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