According to Caterpillar, the new loader carries on the 973C's "all-purpose performer" reputation and retains much of its solid design, including the Cat C9 engine, hydrostatic drive, single-fabrication mainframe, Z-bar loader linkage and oscillating undercarriage. The 973D is a "one-machine workforce" with the features to take on the toughest jobs—at construction sites or in the harsh environments of steel mills, landfills, quarries and demolition sites.
Complementing the new hydraulic system are lift and tilt cylinders using position-sensing electronics, which allow operators to set lift and tilt kick-outs from the cab. Kick-outs are quickly reset for each job—or even each truck—to assure fast cycle times. In addition, end-of-travel snubbing assures that cylinders stop smoothly with less shock.
Source: Caterpillar
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