As of March 2015, the Jonsered 630 chainsaw operator's manual is available from the Jonsered website. Owners can search for manuals, safety data sheets and parts lists for any Jonsered product from this website.
Navigate to the Jonsered webpage and click the support button, which is at the top of the page. Then input "630" in the search bar, check the Manuals checkbox and click the Search button. Finally, click the OM, 625, 630, 670, 1998-04 link. This opens a PDF version of the Jonsered 630 operator's manual.
The operator's manual is also available from manualsonline.com. At the bottom of the manualsonline.com homepage, click the Lawn and Garden Manuals link. Next, click the Chainsaw Manuals link and then the Jonsered Chainsaw Manuals link. Finally, click the 630 link to open the manual.