I've only got the AVRE AESP to hand, but it says that the L60 main engine generator (No.5 Mk.4) is a four pole compound wound DC machine, i.e. a dynamo. It does however have an external control panel that provides excitation, so if that doesn't work neither will the generator. The circuitry looks pretty complex so I'd advise finding someone who understands it before deciding on a pack lift.
Andy