511914R1 Is a part number not a model number.
You might have one of the following planters; 170, 171, 172, or 174!
You will find there are operators manuals in the pdf manuals section here at farmallcub.com.
Start by clicking the quick links tab in your screens upper left corner.
If you have all the parts for your planter, you will have to set the proper sprockets up to get the spacing you want and you will need the proper seed plates for the seeds you want to plant.
If you have a lot of seed plates, you can experiment with the different cell sizes to plant different crops, even though the planter plates might have been made for 1 specific crop, like corn.
Here is a company that makes seed plates ⬇️.
https://lincolnagproducts.com/Check out all the different ones they make!
Some times you can find a good deal on them used, craigslist, evilbay, facebook, and local auctions!
I have used different sized corn plates to plant (corn of course) sunflowers, green beans, and peas!
Happy Tractoring!