Craftsman 139.53637SRT Owner's Manual

Garage Door OpenerModels:139.53225SRT - 1/4 HP139.53325SRT - 1/3 HP139.53425SRT - 1/2 HP139.53628SRT - 1/2 HP139.53629SRT - 1/2 HP139.53635SRT - 1/2 H

Assembly Step 4Install the Chain/Cable &Attach the Sprocket CoverSprocketCoverMountingPlateFront Tab SlotBack Tab SlotTop of OpenerOpener Sproc

• Spin the inner nut and lock washer down thethreaded shaft, away from the trolley.• To tighten the chain, turn outer nut in the directionshown. As yo

• Open your door to the highestpoint of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This heigh

DoorHighest Pointof TravelHeaderWallPivotDistanceHeader WallVerticalCenterlineVerticalCenterline ofGarage Door2x4– Unfinished – CeilingStructural Supp

Lag Screws5/16"x18x1-7/8"HighestPoint of Travel(of Garage Door)VerticalCenterLineHeaderWallGarageDoorUPCEILING MOUNT ONLYWallMountin

HeaderBracketCablePulleyBracketTemporarySupportHeader WallGarageDoorT-railClevis Pin5/16"x2-3/4 "Ring FastenerHeader BracketCablePull

Installation Step 4Position the OpenerFollow instructions which apply to your doortype as illustrated.To prevent damage to steel, aluminum,fiberglass

Installation Step 5Hang the OpenerTwo representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to pr

Installation Step 6Install the Wall Control 18Children operating or playing with a garagedoor opener can injure themselves or others.The garage door c

Lens GuideLens Slot75 Watt Max.Light BulbLens TabLight LensInstall the lights• Install a 75 watt maximum light bulb in the socket.The light will turn

Start by reviewing these important safety alert symbols2Contents PageA review of safety alert symbols...2You'll nee

To reduce the risk of electric shock, your garagedoor opener has a grounding type plug with a thirdgrounding pin. This plug will onlyfit into a ground

The safety reversing sensor mustbe connectedand aligned correctly before the garage dooropener will move in the down direction. This is arequired safe

1/4 x 1-1/2"Lag Screw#10 - 32 x 3/8"Screw1/4" - 20Lock Nut#10 x 32Lock NutStaples1/4" - 20 x 1/2"Carriage BoltsIns

Invisible Light BeamProtection AreaSensorSensorConnect Wire toOpener TerminalsBell WireBell WireFinishedCeiling1/4-20 x 1-1/2"Hex Bolt"C&quo

Installation Step 11Fasten Door Bracket Follow instructions which apply to your doortype as illustrated below or on page 25.To prevent damage to steel

DoorBracketTop of Door(Inside Garage)Carriage Bolt5/16"-18x2-1/2"OptionalPlacementLock Washer5/16"Nut5/16"-18Horizontal and vertic

Installation Step 12 Connect Door Arm to TrolleyFollow instructions which apply to your doortype as illustrated below and on page 27.Make sure garage

All ONE-PIECE DoorsAssemble the Door Arm:• Fasten the straight and curved door arm sectionstogether to the longest possible length (with a 2 or3 hole

Adjustment Step 1Adjust the UP and DOWN LimitsDo not make any limit adjustments until thesafety reversing sensors are completelyinstalled.28Limit adju

Adjustment Step 2Adjust the ForceToo much force on the door will interfere withthe proper operation of the safety reversesystem. The door might not re

PliersWire CuttersClaw HammerHack SawScrewdriverAdjustable End Wrench1/2" and 7/16" Socketsand WrenchDrillTape Measure21StepladderPencil3/1

Adjustment Step 4Test the Safety Reverse SystemTest:• Place a one-inch board (or a 2x4 laid flat) on thefloor, centered under the garage door.• Operat

The remote controlThe opener must learn the code of any new remotecontrol. Page 33 explains how to program yourreceiver and how to erase all codes if

To open the doormanually:The door should befully closed if possible.Pull down on the redemergency releasehandle and lift the doormanually. Toreconnect

Children operating or playing with a garagedoor opener can injure themselves or others.The garage door could close and causeserious injury or death.Do

1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,check the fuse box or the circuit breaker. (Some outlets

Having a Problem? (continued)Situation Probable Cause & SolutionThe door reverses forno apparent reasonand opener lightsdon't blink:1. Is som

NOTICE71011859UPCEILING MOUNT ONLY1214131612VDC3126171918152021LOCKLIGHTSEARS/CRAFTSMAN4TO GARAGE DOOR134567Repair Parts SEARS '92Models 535153/2

Repair PartsOpener Assembly Parts1210811131415161943DNUPBrownWire(Down)ContactLIMIT SWITCHASSEMBLYGreyWireYellowWire(Up)ContactCenter LimitContactDriv

Sears offers many useful accessories for your garage door opener. They are illustrated below withSears model numbers and descriptions.5377953774537595

IndexAccess Door/Outside Key Release Accessory...4, 5Chain

4Safety Reversing SensorHorizontal and vertical reinforcementis needed for lightweight garage doors(fiberglass, steel, aluminum, door with glass panel

MAINTENANCE AGREEMENTS… YOUR WAY TO BUY TOMORROW'S SERVICE ATTODAY'S PRICE… With nationwide service and the benefits of a Sears warranty plu

Safety Reversing SensorFINISHED CEILINGSupport bracket& fasteninghardware is required.See page 17.Slack in chain tensionis normal whengarage door

6Straight DoorArm SectionDoor Bracket Plate Door BracketCurved DoorArm SectionSafety LabelsandLiterature2-Conductor Bell WireWhite & White/RedSpro

7Lock Washer5/16" (4)Nut 5/16" - 18 (6)Clevis Pin5/16" x 2-3/4" (1)NOTICEHandleInsulatedStaples (10)Assembly Hardware Installatio

8Assembly Step 1Assemble the T-rail & Attach the Cable Pulley Bracket• Align the 3 T-rail sections on a flat surface exactlyas shown. The end sect

Assembly Step 2Install the Trolley on the T-rail• Place the opener on packing material to protectthe cover. For convenience, put a support underthe ca