While it is true that flat-proof tires are practically indestructible, some common sense care and maintenance techniques can extend the life of your tires. Here are a few tips for care and maintenance of your flat-proof tires:Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:concrete pumping,portable concrete mixer,etc. We will provide you with the best product and service. 1. Make sure you order the right kind of semi-pneumatic tire for your machine and for the surface on which the machine will work. 2. Make sure you examine the tires as soon as you get them to check for manufacturer defects, incorrect sizing, shipping damage, or any other anomalies. Be sure to contact your dealer, distributor, or manufacturer immediately to report any issues. 3. Make sure you put the tires on the machine and try the tires out as soon as you get them to test for any sizing, fitment, and/or compatibility issues and to "get a feel" for how the tires perform- it may take you a while to get used to the tires. 4. Know the weight capacity of your tires- try not to overload the machine. 5. When operating the machine, limit the amount of skidding (doughnuts) as much as possible and try to avoid zero degree/zero radius turns- especially on concrete, pavement, asphalt, gravel, etc. 6. Keep tires clean in-between uses- wash off mud, debris, etc. (especially in aperture holes) and then pat dry. If tires come into contact with oil or petroleum products portable concrete mixers, wipe off with a rag as soon as possible.