Troubleshooting-Rancilio-Rocky-Lever-Engagement
From Whole Latte Love Support Library
If the the dosing chamber does not engage when you pull the lever, or the lever doesn't retract by itself when you pull it, then the spring may be loose or broken, or another part inside the dosing assembly is broken. These instructions will show you how to access the bottom portion of the dosing assembly to check for broken parts and make sure the spring is properly positioned:
