If you ask ten excavator owners what the most expensive part of machine ownership is, you’ll get ten different answers. Some will say fuel. Others will blame hydraulic repairs. A few will point to engines. But seasoned fleet managers—the ones who have spent years watching machines make money and lose money—often give a different answer: The undercarriage. It’s not glamorous. Nobody stands around admiring track chains at a job site. Nobody posts photos of worn carrier rollers
