D7E Caterpillar D7E Specifications & Technical Data (2009—2017)

Undercarriage

The D7E features an advanced low drive undercarriage design for greater machine versatility in a wider range of applications. Improved visibility, especially to the sides, is only one of the several benefits of this highly efficient undercarriage system. D10-size sprocket bearings give the D7E the added durability for a wide range of applications. Shock loads are directed through the roller frame to reduce wear and tear on the machine – and on the operator. The low drive undercarriage configuration also allows the cab to be tilted for convenient service access to the drive train system.

D7E Features

The Cat D7E was designed to meet growing demand for powerful yet highly maneuverable track-type tractors. By adapting electric drive technology to the unique requirements of dozer applications, Caterpillar has developed an all-new class of tractor that delivers the best possible balance of heavy-dozing and fine-grading performance. The innovative diesel-electric hybrid technology of the D7E is also designed to burn considerably less fuel and consume fewer fluids and parts for reduced owning and operating costs. Improved productivity and efficiency means getting more work done while using fewer resources.

Cooling System

The D7E cooling system uses a three-part radiator built with rugged, highly efficient aluminum bar cores for charged air, jacket water, and the separate circuit. Although the jacket water and separate circuit coolant operate at different temperatures, the radiator appears and acts as one integrated unit. Airflow is managed by a hydraulic variable speed demand fan, reducing power requirements and fuel consumption. A molded shroud ensures efficient air flow through the radiator and the fan utilizes lightweight, durable fiberglass blades for high efficiency and quiet operation. A larger gap between fins reduces plugging, and the single-plane design allows for easier cleaning and service.

Sustainability

The D7E is designed to maximize efficiency and productivity while conserving natural resources. It burns 10 – 30 percent less fuel per hour than previous models, which means reduced emissions. The D7E earned a 2009 Clean Air Excellence Award from the U.S. Environmental Protection Agency. It is more efficient, moving 25 percent more material per liter/gallon of fuel. Fewer parts and longer component life, along with less fuel and fluids, means less to replace and less to dispose of. Major structures and components are built to be rebuilt, reducing waste and replacement costs.

AccuGrade™ System for Track-Type Tractors

Caterpillar is helping customers revolutionize the way they move material with new technology solutions for earthmoving machines – solutions that provide greater accuracy, higher productivity, lower operating costs and more profitability. The AccuGrade System is designed and integrated into the machine and hydraulic systems to create an automated blade control. Blade-mounted sensors calculate precise blade slope and elevation information. The integrated electro-hydraulic valve control module uses the information from the sensors to automatically adjust the blade to maintain grade. Automated blade control allows operators to improve efficiency and productivity by achieving grade faster and in fewer passes than ever before, reducing the need for traditional survey stakes or grade checkers.

Grade Control Ready

The D7E ships from the factory with grade control system wiring and mounting points already installed. This makes adding AccuGrade quick and easy, and optimizes performance and reliability. Productivity is further enhanced by the D7E distributed electro-hydraulic system. Hydraulic valves are placed next to the components they control for quicker response and faster cycle times.

Operator Station

The all new D7E cab is designed to maximize operator efficiency. From the operator’s seat, the single center post aligns perfectly with the air intake, exhaust and lift cylinder, greatly enhancing forward visibility. The angled door provides more side glass area, improving sightlines to the blade and all around the job site. That helps operators work more confidently and productively all shift long and enhances job site safety.

Dozer Blades

The D7E features a robust, single lift cylinder design. The single cylinder delivers the same power as a dual-cylinder system, but with fewer than half the components. Blade stability is excellent, supported by L-shaped push arms. Dozer blade capacity is the same as previous models, although the D7E blade enhances durability with thicker plating.

Rear Attachments

Distributed hydraulics and commonality among D7E rear Work Tools help maximize productivity and efficiency. A well-balanced machine design means counterweights are not needed when a rear work tool is not attached. Ripper The ripper on the D7E is placed closer to the machine for improved balance. The Ripper Auto Stow function allows the operator to automatically raise and position the ripper for the next pass. Cast-in ripper mounts mean the machine comes ready-to-pin from the factory, so a ripper can be mounted quickly and easily. Winch The hydraulically driven winch for the D7E features positive load control with variable speed, a dual braking system, a single lever control and a standard three roller fairlead. Drawbar The drawbar for the D7E is suited for a variety of applications, including disks, compactors, chopper wheels, pull-type scrapers and retrieving other equipment.