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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
bow when the opener is operated.
Cable pulley bracket
attaches to FRONT
END of T-rail
T-rail
(End Section)
T-RAIL FRONT
(TO DOOR)
8
HARDWARE SHOWN ACTUAL SIZE
Carriage Bolts
1/4"-20x1/2"
Hex Bolt
5/16"-18x7/8"
T-RAIL BACK
(TO MOTOR UNIT)
Square Carriage
Bolt Hole
1/4" Lock Nut
Carriage Bolt
1/4"-20x1/2"
T-rail
(Center Section)
Cable Pulley
Bracket
Lock Washer
5/16"
Lock Nut
1/4"-20
Nut
Lock Washer
5/16"-18
5/16"
T-rail
(End Section)
Hex Bolts
5/16"-18x7/8"
Nut
5/16"-18
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