BACKGROUND: On a summer morning in the Southcentral U.S., an equipment operator was felling a natural pine stand with a feller-buncher. The terrain was level, and weather conditions were dry and sunny, with a light wind. There was a moderate level of underbrush in the timber stand.
BACKGROUND: On a clear, dry, summer day in the South, an equipment operator was moving a skidder from one end of an old, abandoned woodyard to another. The terrain was flat, and the skidder operator was following an existing, old road.
BACKGROUND: On a clear, summer afternoon in the Southeast, a skidder was pulling a knuckleboom loader along a narrow, level woods road, so the loader could be connected to a truck during moving operations.
A truck driver was unloading wood chips from his open-top tractor-trailer unit via a movable floor unloading system on a mid-winter day in the Northeast. The trailer had a cross-stability bar centrally located at the top of the trailer. When using the movable floor unloading system to offload wood chips, these wood chips would routinely jam at the cross stability bar.