Caterpillar

Pipeline & Gas Journal, Dec, 2007

Caterpillar[R] has announced its D-Series wheel excavators, saying the series offers more power, greater lift capacity and faster cycle times. The series--M313D, M315D, M316D, M318D and M322D--feature changes in engines and hydraulics as compared to the C-Series machines they replace. Cat[R] says the new D-Series also features expanded versatility and enhanced operator control as well as fuel efficiency that is 7-8% greater than the previous models. Each features the powerful Cat engine with ACERT[TM] Technology, the addition of a dedicated hydraulic pump for the excavator swing function and the addition of a heavy lift mode--for boosting lift capability by 7% at the touch of a button. The new systems accelerate essentially all excavator functions and produce power that the operator can feel and put to work. Each of the D-Series machines has greater drawbar pull, increased bucket and stick force, greater dig depth and longer reach than the equivalent C-Series machine, www.cat.com.

[ILLUSTRATION OMITTED]