Cat’s new track-type tractors deliver reduced emissions

AggMan Staff | Published on March 16, 2011

Caterpillar says its new D6T, D7E, and D8T track-type tractors deliver reduced emissions, higher productivity, and lower operating costs. All three models feature Cat engine and after-treatment solutions to meet Tier 4 Interim emissions standards — the D6T and D7E use the Cat C9.3 ACERT engine and the D8T uses the Cat C15 ACERT engine with net horsepower ratings of 205, 235, and 310, respectively. The models also offer an optional Key Off Regeneration, as well as a delayed engine shutdown timer and an engine idle shutdown timer. Ground-level service centers provide access to battery disconnect and engine shutdown switches, as well as optional lighting switches without having to set foot on the machine. Cat Product Link allows remote monitoring of the tractors.

The company says the D6T’s hydraulically driven demand fan operates only when necessary, working in concert with an all-new cooling package and advanced electronic engine controls to deliver fuel savings of as much as 6 percent. The D7E features a diesel/electric drive system for greater efficiency and productivity and is said to lower operating costs by as much as 10 percent. The D8T features differential steering for infinitely variable turning control with full power to both tracks, a suspended undercarriage for improved traction in uneven terrain, and the new Auto-Shift system that reduces fuel consumption by as much as 6 percent.

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