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When tightening
the screws, be
sure to keep
bracket parallel
to the rail.
Otherwise, the
rail may bow
when the opener
is operated.
5/16 -18x7/8
Cable Pulley
Bracket
Bracket & Rail Must Be Aligned
Lock Washer
5/16"
Nut
5/16"-18
T-RAIL BACK
(TO OPENER)
T-RAIL FRONT
(TO DOOR)
Cable pulley bracket
attaches to FRONT
END of T-rail
T-rail
(End Section)
T-rail
(Center Section)
Carriage Bolt
1/4"-20x1/2"
T-rail
(End Section)
Square Carriage
Bolt Hole
1/4" Lock Nut
Right Wrong
7
Assembly Step 1
Assemble T-rail and
Attach Cable Pulley Bracket
• Place the 4 T-rail sections on a flat surface for
assembly. Center sections are interchangeable.
Front and back sections are also interchangeable
for ease of assembly.
• Connect rail braces and lock nuts to rail
sections from the direction shown. Otherwise,
the trolley will hit against the nut (page 8).
Hex Screws
5/16"-18x7/8"
Cable Pulley
Bracket
Bracket & Rail Must Be Aligned
Lock Washer
5/16"
Nut
5/16"-18
Make sure bolt necks are seated in the
square holes and rails are aligned before
you tighten lock nuts. (See right and
wrong views). Improper assembly can
cause jerky trolley operation, noise and/or
nuisance door reversals.
RIGHT
WRONG
Right
Wrong
• Position the cable pulley bracket on the front end
of the T-rail as shown. Fasten securely with the
hardware shown.
Right
Wrong
TO AVOID INSTALLATION DIFFICULTIES, DO
NOT RUN THE GARAGE DOOR OPENER UNTIL
INSTRUCTED TO DO SO.
Carriage Bolts
1/4"-20x1/2" (4)
Hex Screw
5/16"-18x7/8" (3)
Nut
5/16"-18 (5)
Lock Washer
5/16" (4)
Lock Nut
1/4"-20x7/16"
Hardware Shown
Actual Size
11mm Socket Wrench
13mm Socket Wrench