9
ASSEMBLY STEP 1
For Sectional and One-Piece Doors ONLY
Assemble the T-Rail and Attach the Chain
Sprocket Bracket
To avoid installation difficulties, do not run the garage door
opener until instructed to do so.
1. Place the 3 T-rail sections on a fl at surface for assembly.
The end sections are identical. The center section must
be positioned with the braces against the
end sections as shown. Make sure the
“directional arrow” on the center section is
pointing toward the front (to door). Study the
illustration carefully.
2. Bolt rail sections together with the hardware
illustrated and from the direction indicated.
(When assembled, T-rail has a front-to-back
position as shown.)
NOTE:
If T-rail is not assembled exactly as
shown, trolley will not travel smoothly along
length of rail or it will hit against nuts.
3. Position the chain sprocket bracket on the front end of the
T-rail as shown. Fasten securely with the hardware provided.
NOTE:
When tightening the bolts be sure to keep bracket
parallel to the rail. Otherwise, the rail may bow when the
opener is operated.
HARDWARE
SHOWN ACTUAL SIZE
11 mm Socket Wrench
13 mm Socket Wrench
Lock Nut
1/4"-20
Carriage Bolts
1/4"-20x1/2"
Hex Bolt
5/16"-18x7/8"
Nut
5/16"-18
Lock Washer
5/16"
Hex Bolts
5/16
"
-18x7/8
"
Rail B
rac
ket & Rail Must B
e Aligned
Lock Washer
5/16
"
Nut
5/16
"
Chain Pulley
Bracket
Chain Sprocket
Bracket
Lock Washer
5/16"
Nut
5/16"
Rail Bracket & Rail Must Be Aligned
Hex Bolts
5/16"-18x7/8"
Rail
(Center Section)
1/4'' Lock Nut
RAIL FRONT
(TO DOOR)
Cable pulley bracket
attaches to FRONT
END of Rail
Rail
(End Section)
RAIL BACK
(TO OPENER)
Rail
(End Section)
Carriage Bolt
1/4"-20x1/2"
Brace
Brace
Square Carriage
Bolt Holes
O
T G
R
A G
A
D
E OO
R
Hex Bolts
5/16"-18x7/8"
d
e
n
g
i
l
A
e
B
t
s
u
M
l
i
a
&
t
e
k
c
a
r
B
l
i
a
R
Lock Washer
5/16"
Nut
5/16"
Cable Pulley
Bracket
R
Chain Sprocket Bracket
attaches to FRONT END
of Rail
RAIL BACK
(TO OPENER)
Rail
(End Section)
1/4" Lock Nut
Carriage Bolt
1/4"-20x1/2"
Rail
(Center Section)
Brace
RAIL FRONT
(TO DOOR)
Rail
(End Section)
Brace
Square Carriage
Bolt Holes