Chamberlain 248739 garage door opener

User Manual - Page 25

For 248739.

PDF File Manual, 44 pages, Download pdf file

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ONE-PIECEDOORS
Pleasereadandcomplywiththewarningsand
reinforcementinstructionsonthe previouspage,They
applytoone-piecedoorsalso.
- Centerthe door bracket on the top of the door, in line
with the headerbracket as shown. Mark either the left
and right, or the top andbottom holes
Metal Doors: Drill 3/16" pilot holesand fasten the
bracket with the 1/4"-t 4x5/8" self-threading screws
provided
Wood Doors: Drill 5/16" holes anduse 5/16'x2 °carriage
bolts, lock washers and nuts (not provided)
or 5/16"x1-1/2" lag screws (not provided) depending on
your [nsta%t[onneeds
NOTE: Thedoor bracket may beinstalled on thetop
edgeof the door if required for your installation. (Refer to
the dotted line optiona! placement drawing.)
HARDWARESHOWNACTUALSIZE
Self-Thread}ng Screw
I/4"-14x5/8"
HeaderWail
2x4Support
Door
HORIZONTALANDVERTICAL
REINFORCEMENTtSNEEDED
FORLIGHTWEIGHTGARAGE
DOORS(FIBERGLASS,
ALUMINUM,STEEL,DOORS
WITHGLASSPANEL,ETC.).
(NOTPROVIDED)
For a door with no exposed framing,
or for the optional installation, use
__ Self-Threading
Screw
BracketO°°r_ _ 1/4"-14x5/8°
Top of Door
Edge
of Door
lag screws 5/16°xl -1I2" (Not Provided)
to fastendoor bracket
25
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