As a Preventative Maintenance Technician, you’ll perform preventative maintenance, inspections, and repairs on Walmart equipment—including trailers, tractors, yard trucks, and shop/service vehicles—while following company and DOT guidelines. As a Preventative Maintenance Technician, you’ll perform preventative maintenance, inspections, and repairs on Walmart equipment—including trailers, tractors, yard trucks, and shop/service vehicles—while following company and DOT guidelines.