Guidance summary
Check the approved legacy coupling arrangement
This reviewed summary is linked to the question. It does not change the saved answer or score.
Read the reviewed summary
DSA’s 2009 diagram identifies the extra blue auxiliary connection. Mixing two- and three-line equipment requires compatibility and the manufacturer’s instructions, especially for the unused tractor line.
Source: Check the approved legacy coupling arrangement
This reviewed summary is available here without another request. The full source opens in a new tab and needs a connection.