I have a new XL-RD5w, with a yellow indicator.
The line is set in 2nd gear. 1st gear has the max pull, so 5th is slackest.
There are lots of diagrams available on the official SA site. Open the window for your hub and click the technical PDF link.
Make sure you don't mistakenly pull past 1st gear because the sleeve part is breakable.
My hub has been working fabulously since I oiled it.