Don the X-frame cylinder assemblies are a different form the smaller frames.
The ejector rod needs to be unscrewed, need to be careful not to bugger it up.
To disassemble: turn knurled end clockwise, remove nut and slide the yoke off. Be careful not to mar the knurl. I use a wood shims pin under pliers.
Then using a drill chuck, turn extractor rod clockwise to remove the extractor assembly. They make a tool for this but drill chuck works fine.