How do I install a mechanical joint coupling on the discharge of an industrial spool type pitless unit?

The installation instructions for the following part numbers for the ROBAR 1696-2 BOLT COUPLING are copied below:

MJ-SS304QC-040   4" 304SS QUICKCONNECT COUPLING

MJ-SS304QC-060   6" 304SS QUICKCONNECT COUPLING

Additional Resources:

https://www.robarindustries.com/wp-content/uploads/2022/10/1696-Two-Bolt-Installation-page.pdf

https://support.boshart.com/what-are-the-connection-options-for-the-industrial-spool-pitless-unit-discharge-housing