SWITCHBLADE SERIES® 4
STEP 4: INSTALLING THE CLAMPS
STEP 5: ATTACH THE PULL-STRAP
Secure the rails to the truck bed by installing two clamp assemblies per rail. Slide the Clamp Grip onto the Rail at the Clamp Relief and then
slide it towards the Rail Bracket and Shim (Fig 4E and 4F). Then assemble the rest of the clamp parts as shown below (Fig 4C & 4D). Be sure
to use the long clamp grip at the canister end (FIG 4D) and the shorter clamp grip at the tailgate end (FIG 4C).
Before tightening the rail clamps, set the Rail End Caps about 1/16” from the tailgate. This space will allow for overstroke when closing the
tailgate. Once everything is square, tighten the Rail clamps completely but
do NOT tighten over 120 inch-pounds!
Finally, check for proper spacing by measuring between the rails at the canister and the tailgate end of the rails (Fig 4A). The measurement
should be equal to less then those in Fig 4B. The Rail Brackets and Shims have been pre-installed to achieve the proper Between the Rail
dimensions (BR) when placed on an average factory truck bed. However, not all truck beds are average dimensionally and some have op-
tional plastic caps or over the rail spray-in bedliners.
Attach your pull-strap to either of the clamps (left or right side) at the tailgate end of the rails by looping it through the assembly and press-
ing the two Velcro strips together. This will ensure the pull-strap will always be within easy reach when trying to close the cover.
PART NUMBER
BETWEEN THE
RAILS (BR)
SM and SW 2069
60 1/16
SM and SW 2070
60 1/16
SM and SW 2118
59 13/16
SM and SW 2119
59 13/16
Part number is on the serial number
label in the upper-left corner of the
canister (looking from tailgate).
FIG. 4B
FIG. 4A
FIG. 4E
FIG. 4F
Another way to ensure proper fit is to check the side to side play of the handle assembly a the canister and at the tailgate end of the rails.
There should be, at minimum, enough play to allow the cover to move freely with no drag and at a maximum 1/8” per side. More than
1/8” per side may result in the cover opening unintentionally and in severe cases it may fall between the rail tracks and damage the cover.
There are shims on the brackets that can be removed if the unit is too tight and shims in the hardware pack that can be added if too
loose.
FIG. 4C
Tailgate
End
FIG. 4D
Canister End
(For SM & SW2118,
use short grip here.
