1998 Ford Expedition Owner Guide 1st Printing - Page 172

Maintenance and care 1. Pull the wiper arm away from the windshield and lock into the service position. 2. Turn the blade at an angle from the wiper arm. Push the lock pin with a screwdriver to release the blade and pull the wiper blade down toward the windshield to remove it from the arm. 3. Attach the new wiper to the wiper arm and press it into place until a click is heard. INFORMATION ABOUT TIRE QUALITY GRADES New vehicles are fitted with tires that have their Tire Quality Grade (described below) molded into the tire's sidewall. These Tire Quality Grades are determined by standards that the United States Department of Transportation has set. Tire Quality Grades apply to new pneumatic tires for use on passenger cars. They do not apply to deep tread, winter-type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches or limited production tires as defined in Title 49 Code of Federal Regulations Part 575.104(c)(2). 172