How do you replace a diesel pump on a 480 case backhoe?

To replace the diesel pump on a Case 480 backhoe, first ensure the machine is turned off and cool. Disconnect the battery, then remove any hoses and electrical connections attached to the old pump. Unbolt the pump from its mounting, carefully taking note of the orientation and any gaskets. Install the new pump by reversing the removal steps, ensuring all connections are secure and the system is primed before starting the engine.