Synchronous belt in the application of machinery is very broad, so to speak. I believe that everyone on the synchronous belt is not particularly strange, so you know about the safety of the synchronous belt? 1, turn the power off and remove the protection cover, loosen the motor mounting bolts. Mobile motor, make the timing belt loose, enough to remove the need for pried open timing belt. Don't pry it forever. 2, remove the old timing belt and check whether there is abnormal wear and tear. Excessive wear is likely to mean that the transmission problems in design or maintenance. 3, choose the right to change the timing belt. 4, cleaning, timing belt and synchronous belt wheel. With a small amount of volatile liquid to wipe cloth. Soak in the detergent or detergent scrub timing belt is not desirable. In order to remove grease and dirt, wipe with sand paper or with sharp objects scraped, obviously is not desirable. It's on the dry prior to installation.