Sorry QAVION, by reseting I mean the Cargo System (by the Nose Cargo Door) - this usually means the Loadmaster can walk the length of the aircraft, reset it, then walk all the way back again (to the side door).
As for the GEN, makes sense. APU is switched on shortly before departure (loading usually still in progress). APU generator is then selected, ground cart removed when convenient.
Moonbeam; you're right it's been a while since we had a few beers!
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rgds Rat