As far as I know they are quite maintenance-free, and did not notice anything needing attention or love
Did you have to reprime the pump?
Out of curiosity I took out the primer bolt and had a look. There is a back-valve so there is no need for that. Priming is no big deal. Make sure the system is not pressurized (you don't want the bolt being shot into your face, nor flood the floor). Take out the bolt, fill with water to the brim, replace the bolt and you're good to go.