How do you test the injector pump on a Massey Ferguson 230 diesel?

To test the injector pump on a Massey Ferguson 230 diesel, first ensure the engine is off and the fuel supply is turned off. Disconnect the fuel lines from the injector pump and check for any visible leaks or damage. Then, using a hand primer or a manual pump, check for fuel flow and pressure at the injector pump inlet. Finally, if necessary, you can perform a timing check or a bench test to assess the pump's performance and accuracy.