good morning!

anyone here have any experiences with single-phase vacuum capacitor switches?
specifically, type "vcs-1m" switches made by cooper power systems. i recieved and "invitation to bid" on the replacement of 96 of these switches, at 4 different locations owned by the same customer. i am interested in any advise, tips, or any other info on replacing these things. not sure if i want to bid on the job until i see whats involved with them.
thanks, in advance for any help.. [Linked Image]

gramps