Hi,
The Fast Hitch came out on Cubs in late 1954, so a 1948 Cub would have had the hitch added by someone. They could have left parts off, but hard to say without pics of it.
Below are pages from the 1955 Cub operator's manual of a Fast Hitch.
You can see if something is missing.
Not all the hitches had the lever on the right side, IH changed to a crank adjustment to adjust the height of the front of the bail.
http://farmallcub.com/rudi_cub/www.clea ... e%2018.jpg
http://farmallcub.com/rudi_cub/www.clea ... e%2019.jpg
If you have the hitch with the lever to the right of the seat, the links on the bail need to be set so the front of the bail is as low as it goes.
The crank hitch has no links.
Below is a page showing the links, and the adjustment of them.
http://farmallcub.com/rudi_cub/www.clea ... e%2020.jpg
Set the lever so it is all the way forward, so the plow will go into the ground as you begin plowing, or turn the crank so the bail is down.
Don't try to push down with the Fast Hitch, you can bend the lift rod.
The hitch is supposed to be free to float up and down when plowing.
Move the stop collar near the rear of the lift rod forward about 6", so the Touch Control can go fully down, when the plow is on a level surface, then the hitch can float up and down.
If you have a 1 bottom number 194 Plow, they sometimes don't go in the ground well in hard soil.
I remember my friend had that problem with his.
