1. Park the tractor on a level surface and turn off the ignition. Disconnect the negative battery cable.
2. Locate the fuel filter. On the Massey Ferguson 2650HD tractor, the fuel filter is located near the bottom of the left side of the engine.
3. Use a wrench to break the fuel filter collar loose and remove the inlet and outlet fuel lines.
4. Unscrew the fuel filter cover using the same wrench and remove the filter element.
5. Clean the filter cover and gasket with a clean rag.
6. Install the new fuel filter element into the cover, taking care to observe the arrow that indicates the direction of the filter flow.
7. Reinstall the fuel filter cover and tighten the collar with the wrench.
8. Reconnect the inlet and outlet fuel lines.
9. Start the engine and check for leaks.
10. Reconnect the negative battery cable.