Using our CAM Lever Handle style attachment mechanism built into our v7 boot can be a tiny bit complicated... but this article might help you fully understand.

Open the handle (point the handle towards the "front" of the boot)...



Then tighten the back screw until you feel the plastic mounting collar starts to tighten around the spindle/router.  Then back the screw off a half turn or so.

Then as the handle is folded in... it should "pull" the screw such that the plastic mounting part tightens around your spindle/router.