Hydraulic Motors and Excavators
Have you ever watched an excavator at work and wondered what controls its motion? I’m imagining the half dozen excavators, front-loaders and backhoes that are parked in front of my apartment while my narrow street undergoes a major construction project. For the last several weeks, those machines have helped me build character in a number of ways. They’ve taught me patience as I’ve been forced to park long distances from my house, they’ve helped me wake up every morning (even on weekends) at 7:00 sharp and they’ve kicked up a perpetual dust storm that has endowed the landscape with a reddish film. Despite these annoyances, it’s fascinating watching them work. Watching an excavator’s hydraulics force its components back and forth is kind of mesmerizing. Shortly after the first time I sat down on my porch to watch them, I decided to do some reading about what makes those big machines go.