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ASSEMBLY STEP 1
Assemble the T-Rail and
Attach the Belt 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 inter-
changeable. 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 tight-
en 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 belt pulley bracket on the front end of
the T-rail as shown. Fasten securely with the hard-
ware shown.
NOTE: When tightening the screws, be sure to
keep bracket parallel to the rail. Otherwise, the rail
may bow when the opener is operated.
Belt pulley bracket
attaches to FRONT
END of T-rail
(Center Section)
T-rail
(End Section)
T-RAIL FRONT
(TO DOOR)
8
HARDWARE
SHOWN ACTUAL SIZE
Lock Nut
1/4"-20
Hex Screw
5/16"-18x7/8"
5/16"-18
(TO MOTOR UNIT)
Square Carriage
Bolt Hole
1/4" Lock Nut
Carriage Bolt
1/4"-20x1/2"
T-rail
Belt Pulley
Bracket
Lock Washer
5/16"
Carriage Bolts
1/4"-20x1/2"
Lock Washer
Nut
5/16"
T-RAIL BACK
T-rail
(End Section)
Hex Screws
5/16"-18x7/8"
Nut
5/16"-18
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