Step 6: Open the bottle jack unit
Second photo--I decided to make a special tool. Unfortunately for those without welders, making that tool required welding.
The third photo shows the tool in use. Check the yellow text boxes. My vise did not have enough leverage to hold the bottle jack unit, so I bolted it upright into the jack frame and used the jack frame as my own long bar for leverage. In order to make that work, I planted my foot against the end of the frame that is not shown in the photo. I had to strike very hard with a 16 ounce ball peen hammer, but after about five or six strikes, the ram nut began to move. My tool worked and I was able to loosen the ram nut with the ram for removal from the bottle jack unit.