Following a tip i got on the volt-nuts list
I emailed Kron-Hite service , asking if it would be possible to get a copy of the service manual.
And i just got a very plesant response from their Service Department Manager ,
with the complete E100C service manual attached , and a best of luck with the restoration project.
Rumours are that the electrolyte caps needs changing , and the dials needs a good cleaning and lubrication.
I just love when the companies are willing to support their old products and us hobbyists.
This imho puts Krohn-Hite "on par" with HP.
Thumbs up Krohn-Hite , and thank you for the excellent service.
/Bingo