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Cat E Series Mini Hydraulic Excavators
January 25th, 2012
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Company: Caterpillar Inc
Caterpillar’s compact-radius Cat E Series Mini Hydraulic Excavators—303.5E CR, 304E CR, 305E CR, 305.5E CR and 308E CR SB—all use new engines that meet Stage IIIB /Tier 4 Interim emissions regulations and incorporate new features such as the COMPASS control panel, standard high-ambient cooling package, more efficient auxiliary hydraulics, and redesigned control layout. All the E Series models are equipped with a new digital control panel that is specially designed for Cat Mini Excavators—COMPASS—Complete Operation, Maintenance, Performance, And Security System. Built into the COMPASS monitor are an anti-theft system, which requires a five-digit alphanumeric password to start the machine, and an Economy Mode feature (3.5- to 5.5-ton machines), which potentially can lower fuel use up to 20 percent by adjusting engine speed. An automatic engine-idle system drops engine rpm to idle after 4 seconds of inactivity.