How do you replace a main drive belt on a John Deere GT262?

To replace the main drive belt on a JOHN DEERe GT262, first ensure the mower is off and disconnect the battery for safety. Remove the deck by detaching the necessary bolts and the belt guard, then take off the old belt from the pulleys. Install the new belt by routing it around the pulleys in the same configuration as the old one, ensuring it is properly seated. Reassemble the deck and reconnect the battery before testing the mower.