Mr. Morris said the biggest equipment headache is damage to trailers through daily use. Most of it occurs to the roll-up doors during loading. Our trailers would be indestructible if it weren't for forklifts. Oak Harbor's maintenance shops are dispersed geographically in the company's operating area, which covers Washington, Oregon, Idaho, Nevada and Northern California. Nev. The company employs about 20 mechanics, although it does outsource some of its maintenance.
Routine maintenance differs with each piece of equipment.
Sleeper tractors come in every three weeks for service. Most line-haul tractors come in every 10,000 miles, or four to six weeks. Trucks that are used in line haul are not necessarily line specific. They alternate by running lines at night and pickup and delivery by day. Tractors used in local runs come in every six to eight weeks, or every 3,000 to 5,000 miles.