Yes, definetly! All pumps need to be cleaned of calcium deposits at least ounce a year. The easiest way I have found is to soak the pump head parts in pool acid from the local hardware store. The only pumps I don't clean are RIO pumps only because most don't last that long.
FWIW, I just microwave a small cup of white vinegar, and dump the impeller in there after ward. Make the whole house smell like vinegar for a half an hour, but it is surely more safe than pool acid (HCl).