To properly align and adjust the lock rods on your DIAMONDBACK CVR-9 Heavy-Duty Truck Bed Cover, follow these steps: First, prep the lock rods by unbolting and moving one of the bolts on each of the lock-rod guide brackets to the second, unoccupied slot using a 7/16” socket. Repeat this for all four brackets. If your plastic bed rail cap extends below the metal edge of your bed rail, trim the excess at each lock rod location so it's flush with the metal bed rail's edge. Next, adjust the lock rods by loosening the set screws on the tail and cab panel lock rods with the provided hex key. Retighten each lock rod, making sure the Z bend orientation is always maintained. Ensure that with the handle closed, the rod tips don’t hit the bed walls, and with the handle open, the rod tips clear the bed rails. After aligning the lock rods in the closed position, tighten all brackets using a 7/16" socket, pushing up on the bracket and applying downward pressure on the cover simultaneously for a tight seal. Note that the panels might be tough to open and close at first; leave them closed as much as possible to allow the weatherstrip to break in. The cab panel has a safety spring lock handle to engage the lock rods when closing, preventing accidental opening. For the first two weeks, open the tail panel before operating your tailgate. Following these steps will help you enhance the security and functionality of your DIAMONDBACK CVR-9 Heavy-Duty Truck Bed Cover.
