LiftMaster 8550 8550 Manual - Page 4

Assembly 1 Attach the rail to the garage door opener NOTE: ONLY use the bolts removed from the garage door opener. Place the garage door opener on the packing material to prevent H1 To avoid possible SERIOUS INJURY to finger scratching. from moving garage door opener: 1.1 Remove the two bolts from the top of the • ALWAYS keep hand clear of sprocket while garage door opener. operating opener. 1.2 Align the rail and the styrofoam over the • Securely attach sprocket cover BEFORE sprocket. Cut the tape from the rail, belt, operating. and styrofoam. 1.3 Fasten the rail with the previously removed bolts. 1.4 Position the belt around the garage door To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener. opener sprocket. 1.5 Attach the sprocket cover over the garage door opener sprocket and attach with hex screws (H1). . HARDWARE Mounted in the garage door opener H1 (3) Hex Screw #8x3/8" (Packed with the sprocket cover) 4