SEARS / CRAFTSMAN ® Garage Door Opener Owner's Manual FOR RESIDENTIAL USE ONLY Models: 139.53638SRT - 1/2 HP CAUTION! PLEASE READ THIS MANUAL CAREFULLY The MODEL NUMBER label is located on the front panel of your opener. THIS DEVICE COMPLIES WITH FCC RULES PART 15. Operation of this device is subject to the following two conditions: 1. This device may not cause harmful interference. 2.
START BY READING THESE IMPORTANT SAFETY RULES THIS SAFETY ALERT SYMBOL MEANS CAUTION—PERSONAL SAFETY OR PROPERTY DAMAGE INSTRUCTION. READ THESE INSTRUCTIONS CAREFULLY. THIS GARAGE DOOR OPENER IS DESIGNED AND TESTED TO OFFER REASONABLY SAFE SERVICE PROVIDED IT IS INSTALLED AND OPERATED IN STRICT ACCORDANCE WITH THE FOLLOWING SAFETY INSTRUCTIONS. FAILURE TO COMPLY WITH THE FOLLOWING INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE.
Before you begin, please check the contents of the carton. Illustrations of parts and hardware are shown on Pages 26 and 27. Separate the hardware for assembly and installation as shown. FEATURES OF YOUR OPENER 4. Motor Power: Permanently lubricated motor with automatic reset. 1. Opener Light(s): Turns on and off automatically with 4-1/2 minute illumination for your safety and convenience. 5.
BEFORE YOU BEGIN, PLEASE TAKE SOME TIME TO CAREFULLY EXAMINE THE ILLUSTRATIONS OF A TYPICAL GARAGE DOOR OPENER INSTALLATION ON BOTH A SECTIONAL AND A ONE-PIECE DOOR. Some installation instructions vary for sectional and one-piece doors. Follow only those Instructions which apply to your door type. Do you have a finished ceiling in your garage? If so, you will need a supportbracket and additional fastening hardware. Refer to Step 4, Page 13 for specific requirements.
Operation of Your Opener CAUTION • DO NOT PERMIT CHILDREN TO PLAY IN THE AREA OF THE DOOR. • BEFORE YOU PROCEED, PLEASE READ SAFETY RULES ON PAGE 2 AND THE OPERATING INSTRUCTIONS ON THIS PAGE CAREFULLY • OPERATE ONLY WHEN OPENER IS PROPERLY ADJUSTED AND THE DOOR IS VISIBLE AND UNOBSTRUCTED. • TO AVOID DIFFICULTY DURING INSTALLATION, DO NOT RUN OPENER UNTIL INSTRUCTED TO DO SO.
CARE OF THE OPENER When properly installed on a door which is in balance and in good repair, opener will provide high performance with a minimum of maintenance. The opener does not require additional lubrication. CHAIN TENSION ADJUSTMENT: After installation of the opener and adjustment of forces and limits, the chain may appear loose. This is normal. Most complaints of unsatisfactory opener operation can be traced to problems with the door itself.
ASSEMBLY STEP 1 Assemble T-rail & Attach Cable Pulley Bracket CAUTION: Do not tighten the lock nuts until bolt necks are seated in square holes and rail sections are positioned correctly (see right and wrong views below. TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL INSTRUCTED TO DO SO. PROCEDURE: Place the 4 T-rail sections on a flat surface for assembly. THIS IS IMPORTANT. Center sections are interchangeable.
ASSEMBLY STEP 2 Assemble & Install Trolley AS A TEMPORARY STOP, INSERT A SCREWDRIVER INTO HOLE IN FRONT END OF TRAIL. Attach threaded shaft to trolley with lock washer and nuts as shown. Slide trolley assembly along rail to screwdriver stop. NOTE: If trolley hits against nut on T-rail, bolts and nuts were attached from the wrong side and must be repositioned. Review Step 1. USE ONLY THOSE SCREWS MOUNTED IN TOP OF OPENER. FAILURE TO DO SO WILL CAUSE SERIOUS DAMAGE TO OPENER.
ASSEMBLY STEP 4 CAUTION: DO NOT REMOVE THE CHAIN/CABLE FROM THE DISPENSER CARTON. Install Idler Pulley, Chain/ Cable & Sprocket Cover LOCATE HARDWARE BAG CONTAINING SPROCKET COVER, SCREW AND IDLER PULLEY FOR SECTIONAL DOOR: Place idler pulley (hub side UP) over post as shown. FOR ONE-PIECE DOOR: Place the idler pulley (hub side DOWN) over post as shown. Detach cable loop from carton and faster to trolley with a master link from coin envelope.
BEFORE BEGINNING INSTALLATION OF GARAGE DOOR OPENER, BE SURE TO COMPLY WITH ALL SAFETY RULES IT IS RECOMMENDED THAT THE OPENER BE INSTALLED 7 FEET OR MORE ABOVE FLOOR WHERE SPACE PERMITS. KEEP GARAGE DOOR BALANCED. STICKING OR BINDING DOORS MUST BE REPAIRED. THE GARAGE DOOR, DOOR SPRINGS, CABLES, PULLEYS, BRACKETS AND THEIR HARDWARE ARE UNDER EXTREME TENSION AND CAN CAUSE SERIOUS PERSONAL INJURY. DO NOT ATTEMPT TO LOOSEN, MOVE OR ADJUST THEM. CALL FOR GARAGE DOOR SERVICE.
ONE-PIECE DOOR WITHOUT TRACK PLEASE READ AND COMPLY WITH THE WARNINGS ON PAGE 10. THEY APPLY TO THE INSTALLATION OF THE HEADER BRACKET REGARDLESS OF DOOR TYPE. EXAMPLE 1. Close door and mark inside vertical centerline of garage door Extend line onto header wall above door. Distance from top of door (at highest point of travel) to floor............................ 2. Open door to highest point of travel as shown. Measure the distance from top of door to floor. Subtract actual height of door.
INSTALLATION STEP 3 TO PREVENT DAMAGE TO LIGHT WEIGHT DOORS AND/OR DOORS WITH WINDOWS, DO NOT REST THE OPENER ON THE DOOR. Position the Opener Follow instructions which apply to your door type as illustrated. INSTALLATION—SECTIONAL DOOR & 1-PIECE DOOR WITH TRACK PROCEDURE: Raise the opener onto a stepladder. Open garage door. Place a 2x4 on the top section of door near centerline as shown. Rest T-rail on 2x4 as shown. NOTE: A 2x4 is convenient for setting an Ideal doorto-T-rail distance.
INSTALLATION STEP 4 Hang the Opener THE OPENER MUST BE SECURELY FASTENED TO A STRUCTURAL SUPPORT OF THE GARAGE. Three representative installations are shown. Yours may be different. Hanging brackets should be angled (Fig.1) or crossed (Flg.2) to provide rigid support. On finished ceilings (Fig.3), attach a sturdy metal bracket (not supplied) to ceiling joists before installing opener. PROCEDURE: Measure the distance from EACH side of the opener to the structural support.
LOCATE DOOR CONTROL BUTTON (OR ANY ADDITIONAL PUSH BUTTONS) WHERE THE GARAGE DOOR IS VISIBLE, AWAY FROM DOOR AND DOOR HARDWARE AND OUT OF THE REACH OF CHILDREN. SERIOUS PERSONAL INJURY FROM A MOVING GARAGE DOOR MAY RESULT FROM MISUSE OF OPENER. DO NOT ALLOW CHILDREN TO OPERATE DOOR CONTROL BUTTON(S) OR REMOTE CONTROL TRANSMITTER. FASTEN THE CAUTION LABEL ON THE WALL NEAR DOOR CONTROL BUTTON AS A REMINDER OF SAFE OPERATING PROCEDURES.
INSTALLATION STEP 6 Install Light and Lens INSTALLING LIGHT: Install a 75 watt maximum light bulb in socket as shown. The light will turn on and remain lit for 4-1/2 minutes when power is connected. After 4-1/2 minutes it will turn off. If bulb burns out prematurely due to vibration, replace with bulb specifically packaged for “Garage Door Openers”. INSTALLING LENS: Slide the lens into the guides as shown. Snap the bottom tabs into lens slots.
INSTALLATION STEP 8 Connect Electric Power RIGHT TO AVOID SERIOUS PERSONAL INJURY FROM ENTANGLEMENT, REMOVE ALL THE ROPES CONNECTED TO GARAGE DOOR BEFORE OPERATING OPENER TO AVOID DAMAGE TO GARAGE DOOR AND OPENER, MAKE DOOR LOCKS INOPERATIVE BEFORE CONNECTING ELECTRIC POWER. USE A WOOD SCREW OR NAIL TO HOLD LOCKS IN "OPEN" (UNLOCKED) POSITION. THE INSTALLATION & THE WIRING MUST BE IN COMPLIANCE WITH LOCAL ELECTRICAL AND BUILDING CODES.
TO PREVENT DAMAGE TO LIGHTWEIGHT AND METAL GARAGE DOORS {OR ONES WITH GLASS PANELS). ALWAYS REINFORCE THE INSIDE OF DOOR BOTH VERTICALLY AND HORIZONTALLY WITH 2x4 BOARDS OR ANGLE IRON. INSTALLATION STEP 9 Fasten Door Bracket and Plate Follow instructions which apply to your door type as illustrated below. The horizontal brace should be at least 6 feet long. The vertical brace should cover height of top panel.
INSTALLATION STEP 10 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated. SECTIONAL DOORS ONLY Make sure garage door is closed tight. Pull the manual release handle to disconnect the trolley. Manually move outer trolley back to the center of Inner trolley as shown in Figures A, B and C. FIG B: Bring arm sections together. Find two pairs of holes that line up and join sections. Select holes as far apart as possible to increase door arm rigidity.
ALL ONE-PIECE DOORS ASSEMBLE DOOR ARM: Fasten straight and curved door arm sections together to their longest possible length. With door closed, connect straight door arm section to door bracket with a clevis pin. Secure with a ring fastener. Before connecting door arm to trolley, limits of travel must be adjusted on one-piece doors. Limit adjustment screws are located on left side panel as shown in illustration on Page 20. Follow procedures below.
ADJUSTMENT STEP 1 Adjust UP and DOWN Limits LIMIT ADJUSTMENT settings regulate the points at which the door will stop when moving up or down. NOTE: Door STOPS In the UP direction If anything interferes with door travel. Door REVERSES in the DOWN direction It anything interferes with the door travel (including binding or unbalanced doors). PROCEDURE: To operate the opener, press the Door Control Button. Run the opener through a COMPLETE TRAVEL CYCLE.
DO NOT USE FORCE ADJUSTMENTS TO COMPENSATE FOR A BINDING OR STICKING GARAGE DOOR. EXCESSIVE FORCE WILL INTERFERE WITH PROPER OPERATION OF SAFETY REVERSE SYSTEM OR DAMAGE GARAGE DOOR. ADJUSTMENT STEP 2 Adjust Force Force Adjustment Controls are located on rear panel of opener. FORCE ADJUSTMENT settings regulate amount of the power required to open and close door. NOTE: The door STOPS in the UP direction if anything Interferes with its travel.
THE SAFETY REVERSE SYSTEM TEST IS _ IMPORTANT. GARAGE DOOR MUST REVERSE ON CONTACT WITH A ONE-INCH ADJUSTMENT STEP 3 Test Safety Reverse System OBSTACLE PLACED ON THE FLOOR. FAILURE TO PROPERLY ADJUST OPENER MAY RESULT IN SERIOUS PERSONAL INJURY FROM A CLOSING GARAGE DOOR. REPEAT TEST ONCE A MONTH AND ADJSUT AS NEEDED. PROCEDURE: Place a one-inch obstacle on the floor under the garage door. Operate door in DOWN direction. The door MUST reverse on the obstruction.
ACTIVATE THE OPENER ONLY WHEN DOOR IS IN FULL VIEW, FREE OF OBSTRUCTION AND PROPERLY Radio Controls F.C.C. rules prohibit adjustments to or modification of receiver and/or remote control transmitter circuitry except for changing code setting and replacing remote control transmitter battery. NO USER SERVICEABLE PARTS. Manufactured under 1 or more of the following U.S. patents: RE29,525; 4,037.201; 4.750.118; 4.806.930 Other Patents Pending. ADJUSTED.
Having a Problem? Review Pages 2 and 3 Before Proceeding SITUATION PROBABLE CAUSE & SOLUTION OPENER DOESN'T OPERATE FROM EITHER THE DOOR CONTROL BUTTON OR THE REMOTE CONTROL TRANSMITTER 1. Have you disengaged all door locks? Review Step 7, page 16. 2. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, check fuse box or circuit breaker (Some outlets are controlled by a wall switch.) 3. Repeated operation may have tripped the overload protector in the motor.
Having a Problem? (continued) SITUATION PROBABLE CAUSE & SOLUTION DOOR REVERSES FOR NO APPARENT REASON 1. Pull red manual release handle. Operate door manually. If it is unbalanced or binding, call for garage door service to correct the problem. 2. Clear any ice or snow from garage floor area where garage door closes. 3. Review the Force Adjustment Chart on page 21. REPEAT SAFETY REVERSE TEST after adjustment Is complete. 4. If door reverses in FULLY CLOSED position decrease travel limits (Page 20).
SEPARATE ALL HARDWARE FOR ASSEMBLY AND INSTALLATION PROCEDURES AS SHOWN BELOW 2 1 4 11 12 13 3 16 14 15 6 5 17 19 18 8 23 7 25 21 10 20 26 22 24
REPAIR PARTS Opener Assembly Parts List KEY NO. 1 2 PART NO. DESCRIPTION 31D380 41C4220 3 41A2817 4 5 6 7 8 41B2991 41A3075 175B88M 108D30-1 30b363 Sprocket cover Gear and sprocket assy. Complete with: Spring Washer Thrust Washer Retaining ring Bearing Plate Roll Pins (2) Drive gear and worm gear Helical gear w/retainer and grease Drive/Worm gear kit w/ grease Roll pins (2) Line cord End Panel Light socket Lens Capacitor 9 10 12A373 41A3150 Capacitor Bracket Terminal w/screw KEY NO.
Sears / CRAFTSMAN ® HOW TO ORDER REPAIR PARTS Garage Door Opener Models: 139.53638SRT Now that you have purchased your Sears Garage Door Opener, should a need ever exist for repair parts or service, simply contact any Sears Service Center and most Sears Roebuck and Co. Stores. Be sure to provide all pertinent facts when you call or visit. The MODEL NUMBER of your garage door opener is printed on a label located on the left side panel of the opener.
