Art.....what happens if you simply leave the Transfer Pumps ON....and never turn them off?
Omit what the procedures are in the book....explain to us any real reason the Pumps need to be switched off. Risk of fire, harm to the pump, loss of lubrication due lack of fuel going through the pump? Any Thermal Switches on the Pump to shut the Pump off if it gets hot?
As I've said, I never used to turn them off, mainly because I never took the caption as indicating a pump failure, and knowing that the caption would go out in a few minutes when I changed the aircraft attitude. I believe that is another Police pilot on here who did the same.
Can't recall hearing of a run dry time for the pumps though.