1997 Ford Aerostar Owner's Manual - Page 251

Wiper blade replacement If the wiper blades still do not work properly after you clean them, you may need to replace the wiper blade assembly or the blade element. When replacing the wiper blade assembly, blade refill, or wiper arm always use a Motorcraft part or equivalent. To replace the blades, follow the instructions that come with them. Tires Look at your tires each time you fill your fuel tank. If one tire looks lower than the others, check the pressure in all of them. Always follow these precautions: u Use an accurate tire pressure gauge. u Check the tire pressure when tires are cold, after the vehicle has been parked for at least one hour or has been driven less than 3 miles (5 km). distributed. u Make sure the weight of your load is evenly u Adjust tire pressure to recommended specifications found on the Safety Compliance Certification Label. anchored properly in the tire carrier without contacting functional parts such as brake tubes, fuel lines, exhaust pipes, etc. u Make sure the spare tire is mounted and If you do not take these precautions, your tires may fail or go flat. Ford Motor Company recommends obeying posted speed limits. 252