Chamberlain HD620EV Manual page 18

Installation
STEP 8 Install the door bracket (continued)
ONE-PIECE DOORS
1. Center the door bracket on the top ofthe door, in line with the header bracket as shown.
2. Mark either the left and right, or the top and bottom holes.
Metal Doors:
• Drill 3/16" pilot holes and fasten the bracket with the self-threading screws provided.
Wood Doors:
• Drill 5/16" holes and use 5/16"x2" carriage bolts, lock washers and nuts (not provided) or 5/16"xl -
1/2" lag screws (not provided) depending on your installation needs.
NOTE: The door bracket may be installed on the top edge of the door ff required for your insta//ation.
(Refer to the dotted line optional placement drawing.)
HeaderWall
2x4 Support (Finished Ceiling)
For a door with no exposed
framing, or for the optional
installation, use lag screws
5/16"xl -1/2" (not provided)
to fasten the door bracket.
Metal Door _;_j Self-Threading
Screw 1/4"-14x5/8"
Door
r
'_ Top of Door
Bracket ', (Inside Garage)
Top Edge of
Door
Optional
Placement
Wood Door _ Nut 5/16"-18
@ ,@---- Lock Washer 5/16"
@
Door
Bracket '_,,_,' ,. _ Top of Door
-->_ (Inside Garage)
J_
_,, _-_ Top Edge
of D oor
_\ pO_t_°e nma_ nt
__ Carriage Bolt 5/16"x2"
(not provided)
17