Genie M-4500 Owner's Manual

Genie M-4500 Owner's Manual Manual pdf 10 page image

Correctly seated pin. Incorrectly seated pin.NOTE: Rail comes fully preassembled with straight doorarm already attached. Unpack one-piece preassembled rail. Leave straight door arm taped inside rail for safe andconvenient installation—it will be untaped and used later. Position door opener head with control panel facing frontof garage. Rest opener head on cardboard or protectivesurface on floor so opener does not get scratched. Chassisside of opener (with motor shaft sticking out) facing up. Position rail onto opener chassis by lining up rail sprocketopening with motor head shaft (Fig. 17A). Make sure shaftengages teeth inside rail sprocket. Press rail down firmlyonto shaft and opener chassis. DO NOT HAMMER. Position 2 "C" brackets over rail and onto chassis. Flangeson "C" brackets must fit into cutout area on chassis (Fig.17B). Insert screws 6 x 14 through bracket holes and into chassisholes, and tighten screws firmly to hold rail to head (Fig.17C). For sectional doors, proceed to step 8-5.ADDITIONAL STEP FOR ONE-PIECEDOORS ONLY:IMPORTANT NOTE: For installation on One-Piece Doorsonly, the straight door arm that is factory installedonto the rail must be replaced by the curved doorarm supplied as part of hardware in powerhead box.This must be done after attaching rail to powerhead,before moving to step 8-5. Turn rail and opener head over so that open channel inrail faces up. Untape straight door arm that is secured inside rail. Remove and save the two phillips head screws that aresecuring the door arm pin and straight door arm (Fig. 18). Lift arm and pin straight out of slot in trolley, and removepin from straight door arm. Insert pin into short side of curved door arm as shown. Orient arm so that long side extends away from trolley. Carefully insert pin and door arm into slot in trolley.Push pin into slot with door arm so pin is fully seated intotrolley slot. IMPORTANT: Pin must be straight and seatedproperly into recessed area in trolley. See Fig. 18A. Secure pin and curved arm with the two phillips screwswhich were removed from trolley—DO NOT use anyother screws. Tighten screws firmly. Turn rail and powerhead over so that open channelin rail faces down. Now proceed to Step 8-5.8-4. ATTACH RAIL TO OPENER HEAD10When fastening the rail to the opener,use only the screws provided. Use of anyother screws may result in opener fallingfrom ceiling and causing damageto persons or property in the garage.Rail SprocketOpeningRailMotor HeadShaft “C” BracketsA. Place Railonto ChassisB. Position “C”Bracketsto ChassisC. Secure “C”Bracketsto Chassis 6x14ScrewA. Loosen ScrewsC. Feed Pin through CurvedDoor Arm HoleB. Remove PinD. Reinsert Pin and Arm Firmlyand Squarely, Tighten ScrewsFig. 17Fig. 18Fig. 18A