liftmaster 8355 manual
. . Position the beltaround the garage door opener sprocket. 4.Disable ALL locksand remove ALL ropesconnected to garage door BEFORE installing opener to avoid entanglement. . Cutboth piecesofthe hanging bracketto required lengths. . •Header bracketMUSTbe RIGIDLY fastened to structural supporton header wall or ceiling,otherwise garage door might NOTreverse when required.DO NOT install header bracketover drywall. 9.1Close the door.Disconnectthe trolleyby pulling the emergencyrelease handle. 37-38. 3.Raise and lower the door to checkfor binding or sticking.Ifyour door binds, sticks,or isoutofbalance,call a trained door systemstechnician. . 28-29, Remote Control . Align the straightdoor armwith the curved door arm.Selecttwo aligned holes(asfar apartaspossible) and attach using the bolts,nutsand lock washers. . . Remove the 2x4.Operate the door manually.Ifthe door hitsthe rail,raise the header bracket. READANDFOLLOWALL INSTALLATIONWARNINGS ANDINSTRUCTIONS. 1.1Close the door and markthe inside vertical centerline ofthe garage door. . 8355 garage door opener pdf manual download. NOTE: Ifthe door hitsthe trolleywhen itisraised,pull the trolleyrelease armdown to disconnectthe inner and outer trolley.Slide the outer trolleytoward the garage door opener. . . . NOTE: Yourproductmaylookdifferentthan movingpartsofthedoortheillustrations. . . Figure 1 showsone piece ofangle iron asthe horizontal brace. We have emailed you a verification link to. . The images throughout this manual are for reference and your product may look different. safetyreversing sensors.Twistthe like-colored wirestogether. To reduce the risk of SEVERE INJURY or DEATH: 1.READANDFOLLOWALL INSTALLATIONWARNINGS ANDINSTRUCTIONS. 1.7Remove the door control fromthe wall and drill a 5/32 inch (4 mm) hole for the top screw. Followthe instructionswhich will workbestfor your particular requirements.Donot installthe headerbracket overdrywall.If installinginto masonry,use concrete anchors (not provided). 4.1Remove the packing material and liftthe garage door opener onto a ladder. 35, Warranty. 7.NEVERconnectgarage door opener to power source until instructed to do so. NEVERconnectgarage door opener to power source until instructed to do so. Fiberglass,aluminumor lightweightsteel garage doorsWILLREQUIRE reinforcementBEFORE installation ofdoor bracket.Contactyour door manufacturer for reinforcementkit. . After ANY adjustmentsare made,the safety reversal systemMUSTbe tested.Door MUSTreverse on contactwith, Upload manuals that we do not have and get, 1 Attach the rail to the garage door opener, 7 Attach the emergency release rope and handle, 2 Wire the door control to the garage door opener, 2 Ensure the Safety Reversing Sensors are aligned, 3 Ensure the Door Control is wired correctly. Hanging your garage door opener will varydepending on your garage.Two representative installationsare shown.Yoursmay be different.Hanging bracketsshould be angled (Figure 1) to provide rigid support.On finished ceilings(Figure 2),attach a sturdymetal bracketto structural supportsbefore installing the opener.Thisbracketand fastening hardware are notprovided. ■ Periodic checks of the garage door opener are required to ensure safe operation. 36, Repair Parts . Attach the sprocketcover over the garage door opener sprocketand attach with hexscrews. NOTE: Do notuse halogen,shortneck,or specialtylight bulbsasthese mayoverheatthe end panel or lightsocket. terminal,push in the tab with a screwdriver tip. NEVERpermitchildren to operate or playwith door control push buttonsor remote control transmitters. . . . . A vertical reinforcement brace should cover the height of the top panel. For the vertical brace,2 piecesofangle iron are used to create a U-shaped support.The bestsolution isto checkwith your garage door manufacturer for an opener installation door reinforcement kit. . . 2.2B Separate the safetyreversing sensor wiresand strip 7/16 inch (11 mm) of, insulation fromeach end.Choose two ofthe pre-installed wiresand strip 7/16, inch (11 mm) ofinsulation fromeach end.Make sure thatyou choose the. . . . . 8.NEVERwear watches,ringsor loose clothing while installing or servicing opener.Theycould be caughtin garage door or opener mechanisms. . 5.The opener should be installed above the center ofthe door.Ifthere isa torsion spring or center bearing plate in the wayofthe header bracket,itmay be installed within 4 feet(1.2 m) to the leftor rightofthe door center.See page 7. . •Sensorsare facing each other with the lensesaligned and the receiving sensor lensdoesnotreceive directsunlight. . . IMPORTANT: The groove on the straightdoor armMUSTface awayfromthe curved door arm. •Concrete anchorsMUSTbe used if mounting header bracketor 2x4 into masonry. (Not Provided) Lag Screws 5/16"- 18x1-7/8", Hex Bolt 5/16"- 18x7/8", Lock Washer 5/16", Nut 5/16"-18. ■ Please read this manual and the enclosed safety materials carefully! ONLY operate garage door opener at 120 V,60 Hzto avoid malfunction and damage. Garage door installation and wiring MUST be in compliance with ALL local electrical and building codes. LiftMaster 845 Larch Avenue Elmhurst, Illinois 60126-1196 Register your garage door opener to receive updates and offers from LiftMaster Send it in by texting the photo to 71403 (US) or visit www.liftmaster.photo (Global) Take a
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