Caterpillar Unveils Cat D9T Dozer

June 2014, Vol. 69, No. 6

The Cat D9T Dozer features a Cat C18 ACERT engine, which meets Tier 4 Final/Stage IV emissions standards, and delivers 436 net hp at 1,800 rpm.

High torque rise of 36 percent enables the dozer to power through tough material. A new high-efficiency cooling package, advanced electronic controls for the power train and implement hydraulics, quieter cab with enhanced information monitoring, and safety and serviceability refinements define the new D9T.

A new aluminum bar-plate radiator combines enhanced cooling efficiency with added durability and increased resistance to corrosion. In addition, a new air-to-air aftercooler cools combustion intake air to increase combustion efficiency and fuel economy, and a new air-to-oil hydraulic cooler precisely modulates temperatures for optimum performance and component longevity.

The new Advanced Productivity Electronic Control System (APECS) works in conjunction with the Enhanced Auto-Shift system, which automatically selects the optimum gear/engine-speed match, based on load and ground speed, to increase productivity and fuel economy. In addition, the transmission features an electronically controlled main relief valve to reduce pressure during idling to save fuel.

Available blade-control technology includes Automated Blade Assist, which allows operators to select pre-set blade-pitch positions for the dig, carry, and spread portions of the cycle.

Autocarry automates blade lift during carry segments longer than 100 feet, and it automatically positions the blade to minimize track slip. Enhancing Autocarry is the Adaptive Load Select system, which automatically adjusts blade load based on factors such as soil type, moisture content and track performance. In addition, an available Automatic Ripper Control adjusts ground speed and ripper depth to minimize track slip. And for ultimate blade control, the Cat Grade Control 3D system provides precise, automatic positioning of the cutting edge and requires no blade-mounted masts and cables. The system reduces the need for grade staking and grade checking, which reduces the need for people on the ground and consequently enhances safety while lowering costs. cat.com/requestCatinfo

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