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The Chamberlain B4505T is a garage door opener that provides reliable and secure access to your garage. It has a powerful motor that can lift and lower heavy doors with ease, and a belt drive system that ensures smooth and quiet operation. The opener comes with a remote control that allows you to open and close the door from a distance, and a ...
Follow the specific instructions in the manual to program the remote control to work with the garage door opener. 3. Check for obstructions: Make sure there are no obstructions blocking the path of the garage door or gate. Activate the gate or door only when it can be seen clearly and there are no obstacles in the way. 4.
Page 9 Assembly STEP 3 Install the Idler Pulley HARDWARE Nut 3/8" Lock Washer 3/8" Bolt Lay the chain/cable beside the rail, as shown. Grasp the end of the cable and pass approximately 12" (30 cm) of cable through the window. Allow it to hang until Assembly Step 4. Remove the tape from the idler pulley.
Follow steps shown in Fig.2: Place the belt beside the rail as shown. Insert a temporary screwdriver into the hole approximately 10-1/4” from the end of the Rail - Header Segment. Slide the trolley against this screw driver. The trolley must stay in this position for proper alignment of the belt.
such as locks, not needed for powered opera on. - Install the actua ng member for the manual release at a height less than 1.8m. - Permanently fix the label concerning the manual release adjacent to its actua ng member. - Install any fixed control at a height of at least 1.5m and within sight of the door but away from. moving parts.
Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley. Slide the outer trolley back (away from the pulley) about 8" (20 cm) as shown in Figures 1, 2 and 3. Fasten straight door arm section to outer trolley with the 5/16"x1" clevis pin.
Open the door and find the highest point of travel of the top door panel. Using a level, transfer this height to the wall above the floor (Fig. 6) and mark a line 60mm above it. Determine the centre of the location on the wall above and on top of the door. Then draw two (2) lines 21.5mm on each side of the door centre.
