Pneumatic forklift tires should be checked the same way as you would your car tires. If you see the tread has worn down, they need to be replaced. A tread depth gauge is a handy tool to measure the depth or the remaining tread. You must check for wear and tear signs such as puncture marks, indications of any surface damage, damage to the cords, and also the plies. One way to maintain your tires better is to check the air pressure regularly. Look for any unusual wear patterns, which will be indicative of low air pressure in your tires.