Carefully examining the front-end loader attachment on a second hand tractor reveals how hard the machine worked. Look for bent loader arms, cracked stress points near pivot pins, and excessive bucket wear. Heavy loader work stresses front axles, so check front wheel bearings and steering joints thoroughly. https://www.blogbangboom.com/articles/how-to-find-a-second-hand-tractor-serial-number-when-it%E2%80%99s-missing