Instruction/ maintenance manual of the product 139.53978SRT Craftsman
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Owner's Manual 1/2 HP GARAGE DOOR OPENER For Residential Use Only Model No: 139.53978SRT CAUTION: Read and follow all safety rules and operating instructions before first use of this product. Fasten the manual near the garage door after installation.
Contents Page A review of safety alert symbols ................................. 2 You'll need tools .......................................................... 3 Safety information regarding garage door locks and ropes ...........................
You'll Need Tools During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below. Stepladder _ckets _ Adjustable End Wrench An unbalanced garage door might not reverse when required and someone under the door could be seriously injured or killed.
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.
One-Piece Door without Track Before you begin, survey your garage area to FINISHED CEILING see whether any of the conditions below apply support bracket "_ to your installation.
Carton Inventory Your garage door opener is packaged in two cartons which contain parts illustrated below. Accessories will depend on model purchased, if anything is missing, carefully check the packing material. Parts may be "stuck" in the foam.
Separate all hardware from the packages in the rail carton and the opener carton, as shown below, for the assembly and installation procedures. ASSEMBLY @ © @ Lock Nut Lock Washer Nut 1/4"-20 (2.
Assembly Section: Pages 8 - 11 To avoid installation difficulties, do not run the garage door opener until instructed to do so. Assembly Step I I Assemble the Rail & Install the Trolley I The front rail has a cut out "window" at the door end (see illustration).
Assembly Step 2 I Fasten the Rail to the Opener I • Insert a 1/4"-20xl -3/4 bolt into the cover protection bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. • Remove the two screws from the top of the opener.
Assembly Step 4 Install the Chain/Cable and Attach the Sprocket Cover 1. Pull the cable around the idler pulley and toward the trolley. 2. Connect the cable loop to the retaining slot on the trolley, as shown: • From below, push pins of master link bar up through cable loop and trolley slot.
Assembly Step 5 Tighten the Chain I • Spin the inner nut and lock washer down the threaded shaft, away from the trolley. • To tighten the chain, turn outer nut in the direction shown (Figure 1). • When the chain is approximately 1/2" above the base of the rail at its midpoint, re-tighten the inner nut to secure the adjustment.
Installation Section: Pages 12 - 27 Installation Step I Determine Header Bracket Location Installation procedures vary according to garage door types. Follow the instructions which apply to your door.
Read the Safety instructions on page 12. They also apply to doors without tracks. • Close the door and mark the inside vertical centerline of your garage door. Extend the line onto the header wall above door. If headroom clearance is minimal, you can install the header bracket on the ceiling.
Installation Step 2 I Install the Header Bracket You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements.
Installation Step 3 I Attach the Rail to the Header Bracket Header Bracket Idler Pulley NOTE: (Optional) With an existing Craftsman installation, you may re-use the old header bracket with the two plastic spacers included in the hardware bag. Place the spacers inside the bracket on each side of the rail, as illustrated.
Installation Step 4 Position the Opener Follow instructions which apply to your door type as illustrated. A 2x4 laid flat is convenient for setting an ideal door-to-T-rail distance. • Raise the opener onto a stepladder as shown, You will need help at this point if the ladder is not tall enough.
Installation Step 5 Hang the Opener I Two representative installations are shown. Yours may be different. Hanging brackets should be angled, Figure 1, to provide rigid suppod. On finished ceilings, Figure 2, attach a sturdy metal bracket to structural supports before installing the opener.
Installation Step 6 Install the Door Control I Locate the door control within sight of the door at a minimum height of 5 feet where small children cannot reach, and away from all moving parts of the door and door hardware. The door control is typically attached directly to the wall.
6. Attach the User Safety Instruction label to the wall near the door control, and the Maintenance Instruction label in a prominent location on the inside of the garage door. Page 32 explains how to use the door control. Do NOT connect the power and operate the openerat this time.
Installation Step 9 I Electrical Requirements I To reduce the risk of electric shook, your garage door opener has a grounding type plug with a third grounding pin. This plug will onlyfit into a grounding type outlet. If the plug doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.
The Safety Reversing System IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. This is a required safety device and cannot be disabled.
Installation Step 10 I Install the Safety Reversing Sensor INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other across the garage door, with the beam from 4 - 6" above the floor.
MOUNTING AND WIRING THE SAFETY SENSORS • Slide a 1/4"-20xl/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to brackets, wRh lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension.
Installation Step 11 Fasten Door Bracket Follow instructions which apply to your door type as illustrated below or on page 25. A horizontal brace should be long enough to be secured to 2 vertical supports. A vertical brace should cover the height of the top panel.
Please read and comply with the warnings and reinforcement Instructions on page 24. They apply to one-piece doors also. Header Wall 2x4 Support Header -- Finished Coiling -- Ooor Bracket Placement of .
Installation Step 12 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on page 27. Make sure garage door is fully closed.
Assemble the Door Arm: • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole ovedap). • With the door closed, connect the straight door arm section to the door bracket with the 5/16"xl-1/4" clevis pin.
Adjustment Section: Pages 28 - 30 Adjustment Step 1 Adjust the UP and DOWN Limits Do not make any limit adjustments until the safety reversing sensors are completely installed. Limit adjustment settings regulate the points at which the door will stopwhen moving up or down.
Adjustment Step 2 I Adjust the Force I Force adjustment controls are located on the back }anel of the opener. Force adjustment settings regulate the amount of power required to open and close the door. The door will stop in the up direction if anything interferes with its travel.
Adjustment Step 3 Test The Safety Reversing Sensor • Press the remote control push button to open the door. • Place the opener carton in the path of the door. • Press the remote control push button to close the door. The door will not move more than an inch, and the opener light will flash.
IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of severe injury or death to persons: 1. READ AND FOLLOW ALL INSTRUCTIONS. 2. Do not permit children either to operate or to play with the opener. Keep remote control in a location inaccessible to children.
Operation of Your Opener Activate the opener with any of the following: • The Remote Control: Hold push button down until the door starts to move. • The Door Control: Hold push button down until the door starts to move. • The Outdoor Key Switch or Keyless Entry.
Receiver and Remote Control Programming SE( URri '.F To comply wdhFCC rules, adjustment o¢modifications of this receiver andfor transmitter are prohtbRed, except for changing the code settingor replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Situation Having a Problem? Probable Cause and Solution The opener doesn ? operate from either the Door Control or the remote control: 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.
Situation Having a Problem? (continued) Probable Cause & Solution The door opens but 1. won't close: 2, If the opener lights blink, check the safety reversing sensor. See page 23. If the opener lights do not blink and it is a new installation, check the down force.
Repair Parts Rail Assembly Parts 4 3 7 KEY PART NO. NO. DESCRIPTION 1 1A995 Master link kit 2 41C5141-1 Complete trolley assembly 3 183C158-3 Rail - front (header) section 4 183C157-3 Rail - center/beck section (2) 5 144C56 Chain Idler pulley 6 41A5249 Chain and cable 7 144C62 Spreader (2) 8 12D598 U bracket Installation Parts KEY PART NO.
Repair Parts Opener Assembly Parts (Down) LIMIT SWITCH 14 Br_ co.tact ASSEMe,v 12 L, ontact Contact Wire KEY PART KEY PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION 1 31D380 11 41D3058 2 41C4220A 41A281.
Accessories Sears offers many useful accessodes for your garage door opener. They are illustrated below with Sears model numbers and descriptions. 139.53681 SECURITY+ 3-Function Remote Control: 139.53702 f 139.53703 53724 153725 53589 41A5281 Emergency Key Release: Requ/redfor a garage with NO access door.
Index Access Door/Outside Key Release Accessory ............................................................................................... 4, 5 Chain Tension ........................................................................................
For in-home major brand repair service: Call 24 hours a day, 7 days a week 1-8OO-4-MY-HOME s" (1-800-469-4663) Para pedir servicio de reparaci6n a domicilio - 1-800-676-5811 For the repair or replacement parts you need: Call 6 a.m. - 11 p.m. CST, 7 days a week PartsDirect s" 1-800-366-PART (1-800-366-7278) www.
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