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ASSEMBLY STEP 1
Assemble the T-Rail and
Attach the Cable Pulley Bracket
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
1. Align the four T-rail sections on a flat surface
exactly as shown. Center sections are
interchangeable. Front and back sections are also
interchangeable for ease of assembly.
2. Insert the carriage bolts so the
square bolt necks seat in the square
holes in the T-rail sections and pass
through the round holes in the rail
braces. Make sure bolt necks are
seated in the square holes and
rails are aligned before you
tighten lock nuts. Improper
assembly can cause jerky trolley
operation, noise and/or nuisance door
reversals.
3. Assemble lock nuts, ensure alignment and tighten.
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.
4. Position the cable pulley bracket on the front end
of the T-rail as shown. Fasten securely with the
hardware shown.
NOTE: When tightening the bolts, be sure to keep
bracket parallel to the rail. Otherwise, the rail may
Cable pulley bracket
attaches to FRONT
END of T-rail
bow when the opener
is operated.
T-rail
(End Section)
T-RAIL FRONT
(TO DOOR)
HARDWARE
SHOWN ACTUAL SIZE
Hex Bolt
5/16"-18x7/8"
1/4" Lock Nut
T-rail
(Center Section)
Cable Pulley
Bracket
Lock Washer
5/16"
8
Carriage Bolts
Lock Nut
1/4"-20x1/2"
1/4"-20
Nut
Lock Washer
5/16"
5/16"-18
T-RAIL BACK
(TO MOTOR UNIT)
Square Carriage
Bolt Hole
T-rail
(End Section)
Carriage Bolt
1/4"-20x1/2"
Hex Bolts
5/16"-18x7/8"
Nut
5/16"-18
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