Assembly - Chamberlain Series OCG Installation Manual

1
OPERATOR ASSEMBLY
BOOM ASSEMBLY: Use a clean, flat surface.
8
Drive chain can slide out of booms. Do not run until operator
is fully assembled.
NOTE: Boom assemblies are for 7 foot 6 inch highdoor.
An extension kit for an 8 foot high door is available.
OPEN BLUE PARTS BAG
1. Attach boom strap (Fig. 1-1).
• Place boom strap against boom so that projection
on strap mates with second hole from end of boom.
– Place 2 bolts (9) through boom strap and boom.
– Ignore fourth hole. (See NOTE)
– Securely tighten bolts and nuts (10).
[ 9 ]
NOTE: Your boom has 4 holes in the boom strap
end. The hole furthest away from the end is for an
extension kit if needed.
Make sure that the carriage magnet is in place in the
top of the carriage slide.
2. Slip carriage into carriage slot of boom.
• Flip the boom assembly up-side down.
• Place emergency release lever in "release"
position (See below).
– Check arrow on the side of carriage points
toward door end of boom.
– Slide carriage into boom at power head end
(Fig. 1-2).
– Flip boom assembly right-side up.
Lever in release position.
CAUTION
[ 10 ]
1/4"-20 x 5/8"
1/4"-20
CAUTION
FOR HELP-1.800.929.3667 OR OVERHEADDOOR.COM
FIG. 1-1 Attach boom strap
Boom is up-side
down
.
FIG. 1-2 Align arrow
.