Chamberlain 3453135556 manual Open Orange Parts Bag, Door Bracket, Mounting the header bracket

NOTE: If header bracket location needs to be above header for garage door opening, you need to add a “mounting surface.” A 2" x 6" board securely attached (fasteners not included) across wall studs on either side of your mark is sufficient (Fig. 2-4).

OPEN ORANGE PARTS BAG

2. Mounting the header bracket.

NOTE: Although header bracket may be oriented

12 several ways, method 1 is preferred if possible because of added strength over other methods (Fig. 2-5).

•Hold header bracket against wall (Fig. 2-5).

–Place left edge on vertical line.

–Bottom edge on final height line.

•Mark screw hole locations on wall.

•Drill 5/32" pilot holes at each screw hole mark.

–Fasten header bracket with 3 lag screws (22) (Fig. 2-5).

[22]1/4" x 2"

DOOR BRACKET:

CAUTION

Doors made of masonite, lightweight wood, fiberglass, and sheet metal must be properly braced before mounting door operator. Contact door manufacturer or distributor for a bracing kit. The Overhead Door Corporation is not responsible for damage caused due to improperly braced door.(Fig. 2-6)

3.Finding door bracket mounting location.

•Door bracket is mounted as high on door as possible along vertical centerline.

NOTE: In the case of sectional type doors, door bracket must be mounted NO LOWER THAN top set of rollers (Fig. 2-7).

For 1-piecedoors, door bracket must be mounted at top edge of door.

4.Mounting the door bracket.

•Proper bracing should be verified at this point.

–Align door bracket centered on your vertical centerline.

–Attach using 3 self-drilling screws (42).

–Use lag screws (22) for solid wooden doors.

[42]1/4"-20 x 3/4"

[22]1/4" x 2"

NOTE: For solid wood doors, carriage bolts WITHOUT SLOTTED HEADS (not included, but available by calling the Overhead Door help line) may be used for attaching door bracket.

NO SLOT

bolted to studs in wall

FIG. 2-4 Adding mounting surface.

preferred

1 2 3

FIG. 2-5 Header bracket in place (3 methods).

FIG. 2-6 Examples of door bracing.

even with or

above top roller

FIG. 2-7 Mounting door Bracket (sectional).

on top edge at top of back

Carriage bolt & nut. FIG. 2-7B Mounting door Bracket (one-piece).