Welcome to the forum, SY. I'm sure you'll really enjoy your new Baby; it's a nice little portable to use.

There are modern spools that will fit the machine, but if you have metal ones on the typewriter it wouldn't hurt to keep them (keep all spools in general) and as you said, just re-spool the new ribbon onto one of them.

Please be careful with the vacuum cleaner. I don't personally like to use vacuums to clean typewriters as it would be too easy to lose any small or loosely connected parts; in the course of working on machines it sometimes happens that you'll find a disconnect part rattling around inside of the machine, and something like that could be lost forever when using a strong vacuum.

I assume that you're referring to the platen when you say rubber roller. I would strongly suggest investing in a can of rubber rejuvenator spray. It's inexpensive, and was specially formulated to clean and soften typewriter platens and feed rollers. It does a great job of removing ink and correcting fluid too. If you use the forum's search tool and the keyword 'rejuvenator' you'll find many threads that have already discussed its use.

Good luck and have fun. And please post a photo of your machine!

DrShivaYash wrote:

Are there any take apart manuals available on here?

Do you mean a service manual from Hermes? I've never seen one, but that doesn't mean they don't exist. There are plenty of general service manuals for portable typewriters floating around the internet that a search should find, some may even have specific references to Hermes machines. Also available are Owners' Manuals for the typewriter that would contain instructions for the machine's use and perhaps some mention of regular maintenance procedures. 

You could look at this page to start: http://typewriterdatabase.com/manuals.php