Assemble The Rail & Attach The Chain Pulley Bracket - B&D Controll-A-Door 4 Instructions Manual

ASSEMBLY STEP 1
Assemble the Rail and
Attach the Chain Pulley Bracket
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
1. Align the three rail sections on a flat surface
exactly as shown. The end sections are identical.
Make sure the "arrow label" on the center section
is pointing toward the door.
2. Insert the carriage bolts so the square
bolt necks seat in the square holes
in the 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 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 chain pulley bracket on the front end
of the rail as shown. Fasten securely with the
Chain Pulley
Bracket
hardware 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.
Lock Washer
8mm
Rail
(End Section)
Cable pulley bracket
attaches to FRONT
END of rail
RAIL FRONT
(TO DOOR)
114A2558F
Hex Screws
8mm x 20mm
Nut
8mm
Brace
Square Carriage
Bolt Holes
HARDWARE SHOWN ACTUAL SIZE
Lock Nut
6.35mm
Hex Screw
8mm x 20mm
Lock Nut 6.35mm
Brace
Rail
(Center Section)
Chain Pulley
Bracket
Lock Washer
8mm
8
Carriage Bolts
6mm-20 x 13mm
Lock Washer
Nut
8mm 8mm
RAIL BACK
(TO OPENER)
Rail
(End Section)
Carriage Bolt
6mm-20 x 13mm
Hex Screws
8mm x 20mm
Nut
8mm