How do you change a fanbelt on a Massey Ferguson 135?

To change the fan belt on a Massey Ferguson 135, first ensure the engine is off and cool. Loosen the bolts on the generator or alternator to relieve tension on the belt, then remove the old belt. Install the new belt by threading it around the pulleys, ensuring it's properly aligned, and then re-tighten the generator or alternator bolts to apply tension. Finally, check the belt tension and alignment before starting the engine.