How do you replace PTO shaft seal on Massey Ferguson 230?

To replace the PTO shaft seal on a Massey Ferguson 230, first, ensure the tractor is turned off and secure it. Remove the PTO shaft by unbolting it from the tractor and slide it out. Next, pry out the old seal using a seal puller or a flat tool, being careful not to damage the housing. Finally, install the new seal by tapping it gently into place, reassemble the PTO shaft, and ensure everything is properly secured before testing.