Chamberlain B2210T Installation Manual - English Spanish - Page 20

Installation STEP 8 Install the Door Bracket Fiberglass, aluminum or light weight steel garage doors WILL REQUIRE reinforcement BEFORE installation of door bracket. Contact the garage door manufacturer or installing dealer for opener reinforcement instructions or reinforcement kit. Failure to reinforce the top section as required according to the door manufacturer may void thedoor warranty. A horizontal and vertical reinforcement is needed for light weight garage doors (fiber glass, aluminum, steel, doors with glass panel, etc.) (not provided). A horizontal reinforcement brace should belong enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the top panel. Contact the garage door manufacturer or installing dealer for opener reinforcement instructions or reinforcement kit. NOTE:Many door reinforcement kits providefor direct attachment of the clevis pin and door arm. In this case youwill not need thedoor bracket; proceed tothenext step. OPTIONA- SECTIONALDOORS 1. Center the door bracket on the previously marked vertical center line used for the header bracket installation. Note correct UP placement, as stamped inside bracket. 2. Position the top edge of the bracket 2"-4" (5-10 cm) below the top edge of the door, OR directly below any structural support across the top of the door. 3. Mark, drill holes and install as follows, depending on your door's construction. Metal or light weight doors using a vertical angle iron brace in the door panel support and the door bracket: l Drill 3/16" fastening holes. Secure the door bracket using the two 1/4"-14x5/8" self-threading screws. (Figure 1) l Alternately, use two 5/16"-18x2" bolts, lock washers and nuts (not provided). (Figure 2) Metal, insulated or light weight factory reinforced doors: l Drill 3/16" fastening holes. Secure the door bracket using the self-threading screws. (Figure 3) Wood doors: l Use top and bottom or side to side door bracket holes. Drill 5/16" holes through the door and secure bracket with 5/16"-18x2" carriage bolts, lock washers and nuts (not provided). (Figure 4) NOTE:The1/4"-14x5/8" self-threading screws arenot intended for useon wood doors. HARDWARE Self-Threading Screw 1/4"-14x5/8" Horizontal Reinforcement Vertical Reinforcement FIGURE 1 Vertical Reinforcement Vertical Centerlineof Garage Door FIGURE 2 UP Door Bracket Self-Threading Screw FIGURE 3 Vertical Centerline of Garage Door Hardware (not provided) FIGURE 4 Hardware (not provided) UP Vertical Reinforcement Vertical Centerline of Garage Door Door Bracket UP Inside Edge of Door or Reinforcement Board UP Self-Threading Screw Vertical Centerline of Garage Door 20