Welcome to the Shopsmith Forum.
The link Ron gave you references a lot of great information. One is where you can find a restored PDF version of a 10ER Manual. A direct link is below.
https://drive.google.com/drive/folders/0B1p8_ycx_8A0OW1EVEpSUm9GMW8
It can also be found under the
Maintenance and Repair section for
Shopsmith Large Format Drawings, Illustrations and More by Everett Davis. This will be one of the first three topics. In it you will find a wealth of information on the Shopsmith tools. Some are directly linked there and others are on “
My Google Drive” with documents too large to be directly linked. Everett has become the Shopsmith historian by saving and restoring manuals and other documents. On his google drive is a listing for the Model 10E and 10ER. Use the restored 10ER Manual to be closest to your Shopsmith.
As for your Shopsmith S/N R48245, it is actually a Model 10ER and made in early 1951. When Magna Engineering Corporation, the company formed to make the Shopsmith tools by the inventor and partners, changed from the Model 10E to the 10ER the plate on the tool was changed to just ER in the space where 10E had been.
As Ron said post pictures of anything you have questions about and we can help. The link below explains how to post a picture here on the Forum.
https://forum.shopsmith.com/viewtopic.php?f=7&t=19246
