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AssemblyIStep 2Install the Trolley on the T-railHardware ShownActual Size Attach the threaded shaft to the trolley with thelock washer and nuts as shown.LoCk WasherNut5/16 5/16" - 18Lock WasherOuter Nut5/16"TroileTemporary StopScrewdriver As a temporary stop, insert a screwdriver into thehole in the front end of the T-rail. Slide the trolley assembly along the rail to thescrewdriverstop.If trolley hits against any nuts on the T-ralt, thebolts and nuts were attached from the wrongside and must be reposltioned. Review Step 1.AssemblyFastenIStep 3the T-raft to the Opener Place the opener on packing material to protectthe cover. For convenience, put a supportunderthe cable pulley bracket.in theof the opener.i mountedRernove the(2)top5/16"-18xl/2"washered screwsAlign the holes in the back section of the T-rail withthe holes in the opener. Fasten the rail with the (2) washered screwspreviously removed. Tighten securely.Remember to use only these screws! Any otherscrews will cause serious damage to the opener. Insert a 5/16"-18x7/8" hex screw intothe coverprotectionbelt hole in the T-rail as shown. Tightensecurely with a 5/16" lock washer and nut,NOTE: This screw prevents trolley over-travel.Keep a 2" minimum between the trolley and thisscrew when adjusting travel limits (see page 28).HardwareHex Screw16'- 18 x 718"Shown Actual SizeNut5/16"-Lock Washer185/16'CAUTIONTo fasten rail, use only those screws mountedIn the top of the opener. Any other screws willcause serious damage to the opener.Washered Screw5/16"-18xl/2"Hex Screw5/16"-18X7/8'CoverProtection5/16"*18

Assembly Step 4WARNINGInstall the Chain/Cable &Attach the Sprocket CoverDispensingSerious Injury can result If fingers becomeentangled In moving opener sprocket. Attachsprocket cover securely. Never operate openerwhile your hand Is near the opener sprocket.CartonFigureLeave Chain and CableInsole DLspensing2OpenerSprOcketKeep Chain and CableTaut When Dispensing Detach the cable loop from the carton and fasten itto the trolley with a master linkfrom the hardwarebag. See master link procedure, Figure 1.Figure With the trolley against the screwdriver,dispensethe cable around the pulley. Proceed back around the opener sprocket,Figure 2. Be sure sprocketteeth engage thechain. Continue forward to the trolleythreaded shaft, Figure 3.MasterLink Use the second master link to connectClip-OnSpnngMasterc pOnspringMasterUnkCap"FlatEndofTrolleyThreadedthe chain to the flat end of the shaft.Check to make sure the chain Isnot twisted. Remove the ableLoopPin NOtchTrolleyLink Bar:abJeMasterFigure 1PulleyMaster Link Procedure:install Chain and CableIn "PnisDirectionPush pins of master link barthrough cable loop and hole infront end of trolley. Push capover pins and past notches.Slide clip-on spdng over capand into notches until bothSprocketCoverBack TabSlatpins are securely ocked.,oFront TabTop at OpenerSlotTo attach the sprocketcover: Insert the back tab in the opener slot. Squeeze thecover slightly and insert the front tab in the slot onthe mounting plate.Mounting10

AssemblyStep 5Tighten the Chain & CableILockWasherOuter Nut Spin the inner nut and lock washer down thethreaded shaft, away from the trolley.Inner Nutz: :z:zT Tighten Outer Nut To tighten the chain, turn outer nut in the directionshown. As you turn the nut, keep the chainfrom twisting.I n r NUt When the chain is approximately 1/2" above thebase of the T-rail at its midpoint, re-tighten theinner nut to secure the adjustment.eTo TightenTrollSprocket noise can result if chain is either tooloose or too tight.ChainWhen installation is complete, you may notice somechain droop with the door closed. This is normal. Ifthe chain returns to the position shown when thedoor is open, do not re-adjust the chain.IIIIIII!ItIIflIIIIII1/2 InchIBase of T-railNOTE: During future maintenance, ALWAYSpull the emergency release handle to disconnecttrolley before adjusting chain.You have now finished assembling your garage door opener.warnings before proceeding to the installation section:IMPORTANT INSTALLATIONPlease read the followingINSTRUCTIONSTo reduce the risk of severe injury or death to persons:1. READ AND FOLLOWALL INSTALLATIONINSTRUCTIONS.2. Install only on a properly balanced and lubricated garage door. An improperly balanced doormay not reverse and could result in severe injury or death. Repairs to cables, spring assembliesand other hardware must be made by a professional service person before installing opener.3. Disable all locks and remove all ropes connected to the garage door before installing the opener.Ropes connected to a garage door can cause entanglement and death.4. It possible, install door opener 7 feet or more above floor with the emergency release handlemounted 6 feet above the floor.5. Do not connect the opener to power source until instructed to do so.6. Locate the Door Control within sight of the door at a minimum height of 5 feet where smallchildren cannot reach and away from all moving parts of the door.7. Install the User Safety Instruction Label on the wall adjacent to the door control and theMaintenance Instruction Label in a prominent location on the inside of the garage door.8. Upon completion of the installation, the door must reverse when it comes in contact with aone-inch high object or a 2x4 laid flat on the floor.9. Do not wear watches, rings or loose clothing while installing or servicing an opener. Jewelry orloose clothing can be caught in the mechanism of the garage door or the opener.11

InstallationInstallationDetermineSection:Step 1HeaderBracketLocationIf the header bracket is not rigidly fastened toa structural support on the header wall orceiling, the safety reverse system may notwork properly (see page 30). The door mightnot reverse when required, and could causeserious injury or death.Installation procedures vary according togarage door types. Follow the instructionswhich apply to your cturalII1-II I IL,III.IIYP -- .- -----SupportsIItLII;I fI1 1 IIIII IIII IIII/IIll!l; e , gI --I !tl:lG ' e'i lllIitli,iII11II ILIIIffIIIIIII II IIllI lII tFfIIIII Lt tI!1IllIIY/TIllRemember, you can fasten theheader bracket within 2 feet of theleft or right of the door center onlyifI!]IIIIllabovethedoor,IIIIII I Close the door and mark the insidevertical centerline of the garage door. Extend the line onto the header wallL.[]'1 [1I]u jII I!! IF1 -- L--J iThe garage door springs, cables, pulleys,brackets and their hardware are under extremetension. Do not attempt to loosen, move oradjust them yourself.Serious personal injuryor death could result. Call for professionalgarage door service.--2x4!l IPages 12 - 27atorsionspringorcenterbearingplate is in the way; or you can attachit to the ceiling (refer to page 14)when clearance is minimal. (It maybemountedonthewallupsidedownif necessary, to gain approximately!1 L1/2".)IIfyouneedtoinsta//theheaderbracketII.on a 2x4 (on wall or ceiling), use lagscrews (not provided) to securely fastenthe 2x4 to structural supports as shownhere and on page 13.CeilingHeader Open your door to the highestpoint of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This height willprovide travel clearance for thetop edge of the door.Door clearance brackets areavailable for sectional doorswhen headroom clearance isless than 2". See accessorypage 38.WallTrackTrackHighestPointof Travelof TravelDoorSectional doorwith curved trackProceedHeaderto Step 2, page 14.12One-piece doorwith horizontal track

Read the Safety instructionson page 12. They also apply to doors withouttracks.Header WallVerticalCentedine2x4 Close the door and mark theinside vertical centerline ofyour garage door. Extend theline onto the header wallabove door.If headroom clearance isminimal, you can install theheader bracket on the ceiling.See page 14.OPTIONAL CEILING MOUNTFOR HEADER BRACKETIf you need to instal/theheader bracket on a 2x4 (onwail or ceiling), use lag screws(not provided) to securelyfasten the 2x4 to structuralsupports as shown.Header Wall/Highest Pointof Travel/DoorWallof TravelHeaderHighest Point1IiJambHardwareOne-piece door without trackjamb hardware Open your door to the highestshown. Measure the distancedoor to the floor. Subtract thedoor. Add 8" to the remainder.One-piece door without trackpivot hardwareEXAMPLEpoint of travel asfrom the top of theactual height of the(See Example).Distance from top of door(at highest point of travel) to floor . 92"Actual height of door . -88"Remainder .4"Close the door and draw an intersecting horizontalline on the header wall at the determined height.If the total number of inches exceeds the heightavailable in your garage, use the maximumheight possible, or refer to page 14 for ceilinginstallation.ProceedAdd . 8"Bracket height on header wall .12"(Measure UP from top of CLOSED door.)to Step 2, page 14.13

Install the Header Bracket"InstallationStep 2You can attach the header bracket either to thewall above the garage door, or to the ceiling.Follow the instructions which will work best foryour particular requirements,IFasten the Header Center the bracket on the vertical guideline withthe bottom edge of the bracket on the horizontalline as shown (with the arrow pointing toward theceiling).Bracketto the Wall Mark either set of bracket holes (do not use theholes designated for ceiling mount). Drill 3/16" pilotholes and fasten the bracket securely to a structuralsupport with the hardware provided.WallMounting HolesHeaderWallLag e nail hole is for positioningonly. You must use lag screws tomount the header bracket.OptionalWall MountingHolesJGarageDoorHighestPoint of TravelHardware Shown Actual Sizeq o01rewI VerticalCenterLine(of Garage Door)5/16"-9xl-5/8"Fasten the HeaderBracketto the Ceiling Extend the vertical guideline onto the ceiling asshown. Center the bracket on the vertical mark, no morethan 6" from the wall. Make sure the arrow ispointing toward the wall. The bracket can bemounted flush against the ceiling when clearanceis minimal. Mark holes designated for ceiling mount only. Drill3/16" pilot holes and fasten bracket securely to astructural support with the hardware provided.Ceiling MountingDoorSpdngHolesHeaderWallThe nail hole is for positioning only,You must use lag screws to mountthe header bracket 14

InstallationAttachStep 3the T-rail to the HeaderBracket Position the opener on the garage floor below theheader bracket. Use packing material as aprotective base.If the door spring is in the way you'll need help.Have someone hold the opener securely on atemporary support to allow the T-rail to clear thespring.HeadeBrackelCable Position the cable pulley bracket against the headerbracket.Bracket Align the bracket holes and join with a clevis pin asshown. Insert a ring fastener to secure.Ring FastenerHeader BracketClevis Pin5/16"x2-3/4 'CablePulleyBracketDoor\--Hardware Shown Actual Sizeo]Clevis Pin5/16" x 2 3/4'TemporarySupport Ring Fastener15

InstallationPositionStep 4CAUTIONthe OpenerFollow instructionstype as illustrated.To preventdamage to steel, aluminum,fiberglass or glass panel doors, do not rest theopener on the door without using a 2x4.which apply to your doorSECTIONALDoor & ONE-PIECEDoor with Track IA 2x4 laid flat is convenient for setting an idealdoor-to-T-rail distance.T-rail Raise the opener onto a stepladder.2x4You will need help at this point if the ladder isnot tall enough, Open the door all the way and place a 2x4 laid flaton the top section beneath the T-rail.Doorif the top panel hits the trolley when you raisethe door, pull down on the trolley release arm todisconnect the inner and outer sections. Thetrolley can remain disconnected until Step 12 iscompleted,Trol seStepladderArmHeaderBracket With the door fully open and parallel to the floor,measure the distance from the floor to the top ofthe door.Top of OpenerI Using a stepladder as a support, raise the openerto the same distance as the door from the floor (itwill be at a slight angle as shown). The top of the door should be level with the top ofthe opener. Do not position the opener more than2" above this point.Stepladder16

InstallationStep 5Hang the OpenerTwo representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to provide rigid support. Onfinished ceilings, Figure 2, attach a sturdy metalbracket to structural supports before installing theopener. The bracket and fastening hardware are notrovided. See accessory page 38.Figure 1Supports Measure the distance from each side of the openerto the structural support. Cut both pieces of the hanging bracket to requiredlengths.Screws5/15/-18xl-7/8' Drill 3/16" pilot holes in the structural supports.Measure Attach one end of each bracket to a support with5/16"-18xl -7/8" lag screws. Fasten the opener to the hanging brackets with5/16"-18x7/8" screws, lock washers and nuts. Check to make sure the T-rail is centered over thedoor (or in line with the header bracket if thebracket is not centered above the door).5/16'-18x7/8" Screw16" Lock Washer5/16"-18 Nut Remove the 2x4. Operate the door manually. If thedoor hits the rail, raise the header bracket.Figure 2HiddenSupport IGrease the top and underside of therail surface where the trolleyslides. A tube of grease is /supplied././ ". f-Hardware Shown Actual SizeI!!l!l!;LI!5/16'18xl-7/8"HexScrew18x7/8"Nut 5/16"-18LockWasher5/16"17/o o o o.5/16" t-- FINISHED CEILING -Lag Screws5/16 -18xl-7/5/"Bracket5/16'-/" "18."-5/16"-.u,Lock Washer

i,InstallationInstallStep 6the Door ControlDo not connect to live electrical wiring. Connectonly to 24 Volt low voltage wires. Connection tolive wires or higher voltage may cause setfousinjury from shock, burn or electrocution.Children operating or playing with a garagedoor opener can injure themselves or others.The garage door could close and causeserious injury or death.Install the door control (or any additional pushbuttons) out of the reach of children and awayfrom all moving parts of the door and doorhardware, but where the garage door is visible.Do not allow children to operate the pushbutton(s) or the remote control(s).A moving garage door could injure someoneunder it. Activate the opener only when thedoor is properly adjusted, you can see it clearly,and there are no obstructions to door travel.Locate the door control within sight of the doorat a minimum height of 5 feet where smallchildren cannot reach, and away from all movingparts of the door and door hardware.The door control is typically attached directly to thewall. If installing into drywall, drill 5/32" holes anduse the anchors provided. For pre-wirad installations'as in new home construction.), Console modelsmay be mounted to a standard single gang box"Figure 2).1. Strip 1/4" of insulation from one end of the bellwire and connect it to the two screw terminals onthe back of the door control: white to 2 andwhite/red to 1.2. Door Control Button: Fasten securely with6ABx1-1/2" screws.Console Model: Pry off cover along one sidewith a screwdriver blade

Owner's Manual Model No. 139.53335SRT3 139.53645SRT3 139.53646SRT2 139.53648SRT2 139.53650SRT 139.53660SRT1 139.53834SRT3 For Residential Use Only Caution: