I have a BX2230 with an LA211, and I also have the parts manual for the LA211. In the parts diagrams, there are three lines that come off the hydraulic control valve on the left side of the trans case. They a labeled tank, pump and return, If your BX never had an FEL, you would have to add a block to the control valve that routes the hydraulic oil to the loader valve via the pump line and back to the control valve via the return line, and the tank line.
If you would like, I can send you a PM with the manual pdf attached.
The parts are different depending on the serial number of your tractor.
Here are the pages from the parts manual with diagrams and parts listings.
Hope this helps.
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