DIAMONDBACK CVR-1 Heavy Duty Truck Bed Cover Installation Guide

DIAMONDBACK CVR-1 Heavy Duty Truck Bed Cover

PARTS INCLUDED

TOOLS REQUIRED
INSTALLATION

• If you’re installing a rear window protection accessory, mount it prior to mounting the cover.
• Some models require bulkhead preparation first. Please refer to the instructions in the bulkhead prep kit prior to mounting the cover.
• If your cover includes shims, affix the included bed rail shims first and reference their included instructions.

MOUNT THE PANELS

1. Place the center panel across the bed, 1 cheated toward the tailgate.

2. Attach the tail panel by holding it at a 90° angle from the bed rails and mate the driver’s side hinge first, followed by the passenger side’s c-shaped hinge.
   CAUTION! Be sure all hinges are fully mated before lowering panels.

3. In the same way, attach the cab panel but start by mating the passenger side first. Make sure the safety catch has been untaped and then lower panel into position.

4. Position the cover front to back so that the front of the cab panel lines up with the outside edge of the center of the bulkhead. Center the cover side-to-side on the truck.

5. Position the cap clamps as far apart as possible under the center panel. Attach the center panel by uniformly tightening a cap clamp using a 9/16″ socket to between 5-6 f˜-lbs.
   While tightening clamps, be aware of possible bed rail cap deformation. Overtightening clamps will damage bed rail caps and cause leaking.
   Retighten af˜er a week of use. Check them every time you haul on top.
   PREP FOR THE LOCK RODS

6. Unbolt and move one of the bolts of the lock-rod guide brackets to the second, unoccupied slot using a 7/16” socket. Repeat this on each of the cover’s four brackets.

7. If your plastic bed rail cap extends below the metal edge of your bed rail, trim the excess at each lock rod location so that it’s flush with the metal bed rail’s edge.

8. Loosen the set screws for the tail and cab panel lock rods with the provided hex key and retighten each lock rod after ensuringthree things.

9. The Z bend orientation is always maintained

10. With the lock handle in the open position, the rod tips clear the bed rails.

11. With the handle in the closed position, the rod tips do not hit the bed walls.

12. After properly aligning the lock rods in the closed position, it is time to tighten all brackets using a 7/16″ socket. To ensure a tight seal, it is crucial to simultaneously push up on the bracket AND apply downward pressure on the cover. Repeat for all bracket locations.
    The panels may be tough to open and close at first. Leave the panels closed as much as possible to allow the weatherstrip to break in. Af˜er a few days, you’ll find things working smoothly.
    The cab panel has a safety spring lock handle ensuring you engage the lock rods when closing the panel. This helps prevent accidental opening of the panel while driving.
    If you are installing a Cross Bin, do so now. Refer to the Cross Bin Installation Guide for details.
    ATTACH THE BED RAIL EDGE TRIM

13. Peel the red adhesive backing from the edge trim pieces. Affix them to the metal bed rail in the correct orientation at the four points where the lock rods pass underneath.
    Bed rail edge trim protects the lock rod end cap from wear, and helps draw the panels down and compress the weatherstrip. When installed properly, it will be a little tough to turn the lock handle at first.
    Step 10 is unnecessary on ’20-up Silverado & Sierra 2500 & 3500s and all ’07-13 Silverados and Sierras.
    ATTACH THE GAS SPRINGS & SAFETY CATCH

14. Open the cab panel. Have a 2nd person support it in the open position. Loop the end of the cable tethers around the ball stud arms, making sure to go beyond the ball stud and nut.

15. Attach 2 gas springs to the cab panel.

16. Attach the safety catch by pulling down on the panel and pushing the keyhole at the bottom of the safety catch around the nut, making sure to engage the spring clip.

17. Attach the 2 remaining gas springs on the tail panel, again making 14 sure the barrel end is up.

18. Leave the cover closed and locked for 24 hours to allow the 15 pressure-sensitive weatherstrip adhesive to fully cure.

24 hours
Adhesive cure time
For first 2 weeks after installation open the tail panel on the cover before the operating tailgate.

DiamondBackCovers.com / 800 935 4002

References

• Heavy Duty, Hard Tonneau Covers | DiamondBack Covers

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