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Manafacture: Chamberlain File size: 2.37 mb File name: 114A3072.pdf Language of manual:

• Center the bracket on the vertical mark, no more than 6" (15 cm) from the wall. Make sure the arrow is pointing toward the wall. The bracket can be mounted flush against the ceiling when clearance UP CEILING MOUNT ONLY Ceiling Mounting Holes The nail hole is for positioning only. You must use lag screws to mount the header bracket. UP Lag Screws 5/16"-9x1-5/8" Garage Door Header Wall – Finished Ceiling – Header Bracket 6" (15 cm) Maximum Door Spring Vertical Centerline of Garage Door Vertical Centerline of Garage Door is minimal. • Mark the side holes. Drill 3/16" pilot holes and fasten bracket securely to a structural support with the hardware provided. 14 INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. • Position the rail bracket against the header bracket. • Align the bracket holes and join with a clevis pin as shown. • Insert a ring fastener to secure. Header Bracket Chain Pulley Bracket Temporary Support Header Wall Garage Door Clevis Pin 5/16"x2-3/4" Ring Fastener Header Bracket Chain Pulley Bracket Rail Clevis Pin 5/16"x2-3/4" Ring Fastener HARDWARE SHOWN ACTUAL SIZE 15 CAUTION To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal doorto- rail distance. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. • Open the door all the way and place a 2x4 laid flat on the top section beneath the rail. • If the top section or panel hits the trolley when you raise the door, pull down on the trolley release arm to disconnect inner and outer sections. Slide the outer trolley toward the motor unit. The trolley can remain disconnected until Installation Step 12 is completed. Rail Door 2x4 is used to determine the correct mounting height from ceiling. Trolley Release Arm ENGAGED RELEASED ONE-PIECE DOOR WITHOUT TRACK • With the door fully open and parallel to the floor, measure the distance from the floor to the top of the door. • Using a stepladder as a support, raise the top of the opener to this height. • The top of the door should be level with the top of the motor unit. Do not position the opener more than 2" (5 cm) above this point. Header Bracket Top of Door 2x4 is used to determine the correct mounting height from ceiling. 16 INSTALLATION STEP 5 Hang the Opener Two representative installations are shown. Yours may be different. Hanging brackets should be angled (Figure 1) to provide rigid support. On finished ceilings (Figure 2 and Figure 3), attach a sturdy To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural supports of the garage. Concrete anchors MUST be used if installing any brackets into masonry. WARNING metal bracket to structural supports before installing Figure 1 the opener. This bracket and fastening hardware are not provided. 1. Measure the distance from each side of the motor unit to the structural support. 2. Cut both pieces of the hanging bracket to required lengths. 3. Drill 3/16" pilot holes in the structural supports. 4. Attach one end of each bracket to a support with NuMeasure Distance Lag Screws 5/16"-18x1-7/8" Bolt 5/16"-18x7/8" Lock Washer 5/16" Structural Supports t 5/16"-18 5/16"-18x1-7/8" lag screws. 5. Fasten the opener to the hanging brackets with 5/16"-18x7/8" hex bolts, lock washers and nuts. Figure 2 6. Check to make sure the rail is centered over the door (or in line Hidden with the header bracket if the bracket is not centered above the door). 7. Remove the 2x4. Operate the door manually. If the door hits the rail, raise the header bracket. 8. Grease the top and underside of the rail surface where the trolley slides with rail grease. Bracket (Not Provided) Lag Screws 5/16"-18x1-7/8" (Not Provided) Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18FINISHED CEILING Support Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18Figure 3 Hex Bolt 5/16"-18x7/8" Nut 5/16"-18Lock Washer 5/16" Lag Screw 5/16"-9x1-5/8" HARDWARE SHOWN ACTUAL SIZE Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18Lag Screws 5/16"-18x1-7/8" (Not Provided) Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18 FINISHED CEILING 17 INSTALLATION STEP 6 Install the Door Control Locate the door control within sight of the door at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from all moving parts of the door and door hardware. 1. Strip 1/4" (6 mm) of insulation from one end of the bell wire. Connect it to the two screw terminals on the back of the door control by color: wh...

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