Assembly - Chamberlain B6830 Manuel D'installation

Assembly

STEP 1 Assemble the Rail and Install the Trolley
CAUTION
To prevent INJURY from pinching, keep hands and fingers away from the joints while
assembling the rail.
To avoid installation difficulties, do not run the garage door opener until instructed to
do so.
The front rail has a cut-out "window" at the door end. The rail tab MUST be on top of
the rail when assembled.
1. Remove the straight door arm and hanging bracket packaged inside the front
rail and set a side for Installation Step 5 and 9. NOTE: To prevent INJURY while
unpacking the rail carefully remove the straight door arm stored within the
rail section.
2. Align the rail sections on a flat surface as shown and slide the tapered ends into
the larger ones. Tabs along the side will lock into place.
3. Place the motor unit on packing material to protect the cover, and rest the back-
end of the rail on top. For convenience, put a support under the front end of the
rail.
4. As a temporary stop, insert a screwdriver into the hole in the second rail section
from the motor unit, as shown.
5. Check to be sure there are 4 plastic wear pads inside the inner trolley. If they
became loose during shipping, check all packing material. Snap them back into
position as shown.
6. Slide the trolley assembly toward the screwdriver as shown.
7. Slide the rail onto the "U" bracket, until it reaches all the stops on the top and
sides of the "U" bracket.
Rail Tab
On Top
Front Rail Section
(TO DOOR)
9
Slide to stops on
top and sides of
"U" bracket
Screwdriver
"U" Bracket (TO
MOTOR UNIT)
Trolley
Wear Pads