DrTray SpeedKnob Spring Assembly Instructions Thomas Rastall Updated June 13, 2018 17:28 Follow If you have additional questions you can contact us here, or by phone at 888-925-4621 M-F from 7 to 4 PT Related articles The Remote Release Lever of my DrTray is tight, can this be loosened? How can I tell if my Speedknob is locked or unlocked? How can I find Replacement Parts? DrTray Changes? What is the capacity of the DrTray? Comments 0 comments Please sign in to leave a comment.