A 9/16" wrench or socket is essential for most carriage bolts.
That “dynamic” rating is the key. It means the arm can safely move (articulate) with an 11 lb monitor. At 15 lbs, you can position it once and never touch it again. This distinction is lost on 90% of users—and the manual only explains it in a single sentence at the bottom corner. Dp Dual Trac 20 Assembly Manual
DP (Diversified Products) and its "Fit for Life" product line have been discontinued for years. A 9/16" wrench or socket is essential for
The "Dual Trac" name refers to the two vertical tracks that house the weight carriage. Official Lifestyler 15666-DUAL TRACK 20 weight system parts Dp Dual Trac 20 Assembly Manual