How do you replace fan belt on Massey Ferguson 165?

To replace the fan belt on a Massey Ferguson 165, first, disconnect the battery and ensure the engine is cool. Loosen the alternator and water pump pulleys to relieve tension on the old belt, then remove it. Install the new belt by threading it around the pulleys, ensuring it sits correctly in the grooves, and then adjust the tension by repositioning the alternator or water pump before tightening the bolts. Finally, reconnect the battery and check the belt alignment and tension before starting the engine.