there is no available manual online for Smith Corona SL 480 typewriter.
The only place on the Internet that has EVERY User's Guide or Manual for Smith Corona typewriters is, Will Repair Service. Just log-on to their Site, http://willrepairservice.com/ and ask for the manual you need. They also do professional repairs on all of the Smith Corona typewriters and Word Processors.
Answers & Comments
Hello,
there is no available manual online for Smith Corona SL 480 typewriter.
The only place on the Internet that has EVERY User's Guide or Manual for Smith Corona typewriters is, Will Repair Service. Just log-on to their Site, http://willrepairservice.com/ and ask for the manual you need. They also do professional repairs on all of the Smith Corona typewriters and Word Processors.
Good luck.