Pretty simple operation...here's an overview of the component locations:
Remove the 3 screws at the bottom of the front panel. Lift panel out at the bottom and it should fall down. Discharge pump is on the right-hand side. Simply disconnect the hoses from: 1) the tub and from 2) the outbound discharge hose. Then remove all screws holding the pump in place. The electrical should be a quick disconnect adapter.
It might help to drain the assembly first -- just follow the instructions in the Use & Care manual.