If you need advice on a second hand typewriter, the best place to start is the original manual. You may get lucky and be able to obtain it with the machine. If not you can often find a copy on websites such as www.machinesoflovinggrace.com or Google “Richard Polt Typewriter”. Our thanks go to the many enthusiasts who produced the manuals collections for our use.
If you can’t find the actual manual, instructions of a similar machine will most likely get you up a running. Many levers and switches are common and in similar places across models.
Searching on YouTube for your particular typewriter model can sometimes find great videos showing you how to use your machine including interesting tips.
If you purchased your machine from an expert restorer, their knowledge should always be on-hand and is another reason to purchase from a trusted source.