Equipment

D9T Track-Type Tractor

Caterpillar

February 29, 2012 - Equipment

<p>The new D9T features following enhancements: operator station, implement and steering controls, cooling system, drive train, safety, and serviceability.</p>

New features for the Cat D9T include enhanced operator safety, comfort and convenience, while also refining the performance and productivity.  Powered by a Cat C18 engine with ACERT technology, rated at 410 hp, and with an operating weight of more than 110,000 lbs., the D9T takes on the toughest dozing and ripping jobs.

Operator environment

The D9T cab is designed and equipped for operator productivity, safety, and comfort. A low-effort electronic dozer control handle gives the operator control of all dozer functions with one hand. Operators will enjoy comfort features like adjustable arm rests, new automatic climate control, and the standard Cat comfort series seat now available with optional heat and ventilation.

For added safety, the new dynamic inclination monitor provides readouts of the tractor's pitch angle and side-to-side slope. In addition, a new operator-presence system locks out the power train and hydraulic system to avoid unintentional machine movement when the operator is entering or leaving the cab, assisted by redesigned steps, handles, and guardrails. 

An available visibility package includes mirrors on the lift cylinders and a ROPS-mounted camera system with a 7-inch color monitor near the rear view mirror. In-cab sound levels are decreased from 79 to 77 dB(A), a significant change, and a new dash display, high-current 12v connector, IPOD/MP3 wiring and optional window shades add convenience.

An optional automatic ripper control simplifies the operator's job by keeping drawbar load constant and minimizing track slip. In addition, automated blade assist uses blade-pitch presets to simplify positioning, and an optional autocarry system automatically adjusts blade load during the carry segment.

The autocarry feature can be integrated with the optional Cat grade control system, which automatically guides the blade to achieve design plan contours. Also available for the D9T is the terrain for grading system that can receive electronic site plans in real time to direct cut and fill operations.

Design refinement, serviceability

New for the D9T is the enhanced auto shift (EAS) system, which provides operator-selectable forward and reverse speeds similar to an automatic transmission. The EAS system can provide increased production, fuel efficiency and ease of operation.

Cooling system refinements include a new radiator featuring an aluminum bar-plate design that is extremely durable and corrosion-resistant. A new air-to-oil hydraulic cooler result in lower hydraulic-oil temperatures for extended component life, and the D9T's hydraulically driven, variable-speed demand fan provides optimal cooling, while using less power, reducing fuel consumption and lowering sound levels.

The new "OK-to-start" system electronically checks powertrain, engine coolant and engine oil systems. The ground-level service center in the left fender allows quick access to various controls and information sources commonly used on a daily basis. The VIMS 3G (vital information management system), which can use both cellular and satellite networks,  monitors the D9T's health and working conditions in real time and provides machine history for off-board analysis.

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