ATTACH THE GAS SPRINGS
ATTACH THE COVER & ADJUST THE LOCK RODS
Double-check all three panels to ensure they open, close, lock & seal
correctly. If at any point the weatherstrip does not touch the bed rails,
adjust the position of the lock rods.
16
Your panels should be difficult to operate at first. Leave
them closed as much as possible for 3–4 days to break in
the weatherstrip. After that period, you should find that
the panels open and close without difficulty.
If you are also installing a Single-Side Bin, do so now. Refer
to the Single-Side Bin Installation Guide for details.
12
Attach the 60-lb. gas springs to the cab-panel ball studs and
the two stronger gas springs to the tailgate-panel ball studs.
17
Leave the cover closed and
locked for 24 hours to allow
the weatherstrip adhesive,
which is pressure-sensitive,
to fully cure.
18
To avoid premature failure of your gas springs, attach
them barrel up, shaft down.
You’ll find the strength of the gas springs printed on the
sides of the barrels.
14 With the lock handle in the
closed position, position the
lock rods tight against the
underside of the striker brack-
ets so that they’ll draw the
panels down and compress the
weatherstrip. Tighten the rod
guide brackets with a 7/16"
socket.
Adjust the length of the lock rods and retighten the set screws so that:
A. with the lock handle in the open position, the rod tips clear the
striker brackets,
B. with the handle in the closed position, the rod tips do not strike
the bed walls, and
C. the rods point downward.
13
7/16" socket
Repeat steps 12 through 14 for the cab-panel lock rods so that:
A. with the lock handles in the open position, the rod tips clear
the deck rail system or square-tube top rail (forward) and
T-panel gutter (rearward),
B. with the handles in the closed position, the forward rod tips do
not strike the bulkhead,
C. the rods point downward, and
D. closing them draws the panels down & compresses the
weatherstrip.
15
To ensure the best weatherstrip adhesion, leave your cover and tailgate
closed and locked for 24 hours after you’ve made your final adjustments.
WWW.DIAMONDBACKCOVERS.COM
Close the tailgate panel. Loosen the set screws on the
tailgate-panel lock-rod linkages with an 1/8" hex key.
JANUARY 2016
Place two G-200 cap clamps under the cover at both side ends of
the T panel, their bottom halves fitting into the deck rail system.
Tighten with a 9/16" socket.
10
Place the remaining two clamps under the cover at the nose of the T
panel, their bottom halves gripping the square-tube top rail (‘16-up) or
fitting into the deck rail system (‘05-15). Tighten.
11
Retighten your clamps after 100 miles. Check
them every time you haul on top.
