Instructions / Assembly

7
Step 4
Carefully lift up the torsion tube and components
and place the ends of the tube in the cradle of
each bracket. Pull the tube away from the bracket
to slide the drum in between the bracket legs and
engage the winding unit rails in the bracket slot
(Fig. 9, view A). Push the winding unit rails into
the bracket until the unit bottoms out.
If you have a door with two springs, go to the right
side and repeat the procedure for installing the
winding unit in the bracket.
If you have a door with only one spring, go to
the right side and install the end bearing support.
The end bearing support is installed in the same
manner as the winding unit. Pull the tube back
just far enough to place the drum between the
legs of the bracket. Do not pull the tube farther
than needed to move the end bearing support
and drum into place, as damage may occur to
a unit that is engaged on the other side. Line
up the end bearing support rails (making sure
that the orientation feature is facing away from
the bracket) and push it into the bracket until it
bottoms out (Fig. 9, view B).
Center the tube as equally as possible between
the brackets, so that an equal amount of the tube
is extending from each side.
Step 5 (Doors over 10' wide only)
NOTE: Before installing 1/4" lag screws, it
is important to drill 1/8" pilot holes where the
lag screws are to be attached.
Snap the center support onto the center of
the torsion tube (or coupler if present). Fasten
the support with two 1/4" x 1" lag screws to the
header above the center of the door. The lag
screws should be located at opposite corners of
the center support as shown in Fig. 10. Position
and shim the mounting location as required
to make the tube straight. Check the distance
from the top of the door and the wall or header
to the tube along the length of the door to make
sure the tube is straight and level.
NOTE: The drums and torsion tube are
removed from Fig. 9, view A and Fig. 9 view B
for clarity.
Winding Unit
Bracket
Bearing
Rails
VIEW A
LEFT SIDE SHOWN
VIEW B
SINGLE SPRING – RIGHT SIDE SHOWN
Orientation Features
End Bearing
Support
Bracket
Bearing
Rails
Fig. 9
Coupler
Center Support
(Required on Doors
over 10' Wide Only)
Torsion
Tube
Lag Screws
Torsion
Tube
Header or Wood
Anchor Pad
Fig. 10