B&D Controll-A-Door 4 Instructions Manual - page 3
Before you Begin:
1. Look at the wall or ceiling above the garage door. The
header bracket must be securley fastened to structural
supports.
2. Do you have a finished ceiling in your garage? If so, a
support bracket and additional fastening hardware (not
supplied) may be required.
3. Do you have an access door in addition to the garage
door? If not, an emergency access device is required.
Completed Installation
- 4
As you proceed with the assembly, installation and
adjustment procedures in this manual, you may find it
helpful to refer back to this illustration of a completed
installation.
(1) Chain Pulley Bracket
(8) Light Cover
(2) Trolley
(9) Manual Release
(3) Chain
Rope and Handle
(4) T-Rail
(10) Curved Door Arm
(5) Hanging Bracket
(11) Straight Door Arm
(6) Power Cord
(12) Door Bracket & Plate
(7) Operator
(13) Header Bracket
(14) Trolley Release Arm
Assembly Section
5 -10
Assemble the T-Rail
- 5
Your operator has a 3-piece rail assembly. Refer to that
illustration as you proceed with the following instructions.
On a 3-piece rail
(A), the end sections (4) are identical.
Make sure the “arrow label” on the centre section
(5) is
pointing toward the door.
Place rail pieces on a flat surface for assembly. Connect
the braces
(3) and lock nuts (2) from one side of the rails
and insert the carriage bolts
(6) from the opposite side.
Then the trolley will not hit the lock nuts when it is
installed.
The square necks on the carriage bolts must be seated in
square holes in rail sections
(1).
Install the Chain Pulley Bracket
- 6
Position chain pulley bracket
(2) on the front section of T-
Rail
(6). Fasten securely with: screws (1); lock washers
(3) and nuts (4).
When tightening the screws, be sure to keep bracket
parallel to rail
(5). Otherwise, tail may bow when operator
is operated.
Install the Trolley
- 7
Insert a screwdriver into trolley ‘stop’ hole in the front end of T-rail
(1).
Slide trolley
(2) along rail to the “stop”.
Note: If the trolley hits against the nuts on T-Rail, review rail
assembly and reposition hardware.
Fasten T-Rail & Attach Chain Spreader
- 8
Place packing material under the operator to protect the operator
cover. For convenience place a support under the chain pulley
bracket end of rail.
Remove the
(2) washered screws (4) from the top of the opera-
tor. Align holes in back end of the T-rail with holes in operator.
(7).
Fasten the rail to the operator with the same washered screws
and tighten securely.
Caution: Usse only those screws! Use of
any other screws will cause serious damage to the door opera-
tor.
Attach the chain spreader
(2) with hex screws (1) and flat wash-
ers
(3).
Insert a hex screw
(5) into trolley stop hole in T-Rail (6). Tighten
securely with a lock washer
(8) and nut (9).
Install the Chain
- 9
Do not remove chain from carton.
Dispense a few inches of chain from carton and fasten to trolley
with a master link.
Master Link Procedure:
Push pins of master link bar
(5) through chain link (6) and hole in
front end of trolley
(7). Push cap (2) over pins (8) and onto notches.
Slide slip-on spring
(1) over cap and onto pin notches until both
pins are securely locked in place.
Caution: Keep chain taught during installation to help prevent
kinking.
With the trolley against screwdriver, dispense chain around pul-
ley
(4). Proceed back around a groove in chain spreader (9).
(Chain installation for either the 6 tooth sprocket
(11) or the 8
tooth sprocket
(12) is based on door type). All one-piece doors
should use the 6 tooth sprocket. The operator sprocket teeth
(10) must engage the chain.
Use the second master link to connect the chain to the flat end of
the threaded shaft
(3).
Check to make sure the chain is not twisted.
Set the Chain Tension
- 10
Insert the threaded shaft
(2) through the hole in the trolley (1).
By hand, thread the spring trolley nut
(3) on the threaded shaft
until finger tight against trolley.
Insert a screwdriver tip
(4) into one of the slots of the nut ring (7),
and hold firmly.
Using and open end wrench
(5) at the square end (6), slightly
rotate the assembly clockwise until the nut ring
(7) is re
leased
against the trolley, providing tension for the best operation of
the operator.
Remove the “temporary stop” screwdriver.
Assembly of your operator is now complete