Installation Manual
Actuate red lever and
simultaneously pull the
support rod to remove.
Pull rear clamp down
and hook under
bottom edge of bed
wall flange.
Remove any snow or
foreign matter before
folding cover.
5
Adjust slam latches so they fully engage the underbody rail flange.
Tighten with 3/16” allen wrench.
6
With tailgate open, completely unfold the tonno and
secure to the truck bed with spring clamps.
Slide rear
clamp out
to bed wall.
Fold the tonno forward and
fasten the straps in the middle
section to the front rail.
Reach under and disengage slam
latches by pulling the release cable.
Raise the support
rods to engage
the joint ball in the
third section bow.
Press firmly into
place to secure.
IMPORTANT NOTICE
While driving, cover must be completely
flat and secure with all clamps in the closed
position or completely folded up (all panels)
and secured at the cab. DO NOT DRIVE with
cover in partially opened position.
Note: Tarp cannot be removed from
aluminum frame. Attempting to do so will
cause damage and void the warranty.
Do not tow vehicle
from the rear with this
product in place.
Further adjustment can be
achieved by loosening
phillips screws, and sliding
metal latches forward
4
Raise the Tonno panel for more storageStow Tonno for convenient use
IMPORTANT: Before folding the
second section of the tonno, rear
clamps must be stowed into the
rear bow to prevent damage to
fabric.
Failure to stow handle will
puncture tarp and void
warranty.
Slide the tether out and attach to the footman
loop on the underbody rail.
Fasten the tonno to
the underbody rail
with the tethers.
Release the real clamps and
fold the tonno forward.