SEARS OWNER'S MANUAL Model No. 139.53491SRT For Residential Use CRRFTSMRN Only 1/2 HP GARAGE DOOR OPENER Caution: Read and follow all • Safety Precautions safety rules and operating instructions before first use of this product. • Adjustment • Care and Maintenance • Operation Fasten the manual near the garage door after installation. Complies withUL325 regulations effective January 1, 1993 • Assembly • Installation • Troubleshooting • Parts List /'1111 _ Sears, Roebuck and Co.
Contents Safety alert symbol review ............................................ 2 Complete the safety reversing sensor installation .....22 Safety information, precautions, tools .......................... 3 Install the lights and lens .......................................... Testing your garage door for binding & balance .......... 3 Attach the emergency release rope and handle ......... 23 Carton inventory ...........................................................
Safety Information and Precautions; An unbalanced garage door might not re verse when requiredand someoneunder thedoor couldbe seriously injuredor killed. If yourgaragedoorbinds,sticksor is out of balance,call for professionalgaragedoor service.Garagedoors,door springs,cables,pulleys,brackets,and theirhardwareare under extreme tensionand can cause serious injury or death. Do not try to loosen, move or adjust them yourself! Ropes left on a garage door could cause someone to become entangled and killed.
Carton Inventory Your garage door opener is packaged in one carton which contains the power unit and all parts illustrated below. If anything is missing, carefully check the packing material. Parts may be "stuck" in the foam. KEEP THE FOAM INTACT (see page 10). Hardware for assembly and installation is shown on page 5.
Hardware Separate all hardware from the packages in the rail carton and the opener carton and group as shown below, for the assembly and installation procedures.
SECTIONAL Door Installation Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. Horizontal and vertical is needed for lightweight (fiberglass, steel, aluminum, door See page 24 for FINISHED CEILING Support bracket & fastening hardware is required. See page 20. reinforcement garage doors with glass panels, etc.). details.
ONE-PIECE Door Installation Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. FINISHED CEILING Support bracket & fastening hardware is required. See page 20.
ASSEMBLY SECTION" PAGES 8 - 11 Assembly Step 1 Assemble To avoid installation difficulties, do not run the garage door opener until instructed to do so. the Rail Straight Door Arm Rail Support Braces Extend End Rails Outward Remove Cardboard Packing Center Rail -- Trolley Rail Assembly Carton Rail Assembly Hardware Bag ( _ _" Remove Cardboard Packing Rack Chassis Assembly Hardware Bag Extend End Rails Outward 1.
Assembly Step 1 (Continued) Assemble the Rail 4. Beginning with the sprocket end, straighten the two rail sections so that the screw rod is in a straight line at the joint. (Avoid handling the joints, which may have sharp edges.) 5. Carefully slide the pins at the top edge of the rail into the openings on the adjacent rail. It is essential that the rail assembly be on a level smfaee to achieve proper alignment and to aw_id damage to the pins. 6.
Assembly Step 2 Fasten the Rail To the Power Unit and Install the Trolley NOTE: To aid in assembly and installation, replace the foam packing around the power unit. Remove it after Installation Step 5. • Working on a level surface, align the rail assembly with the power unit, as shown. Rail/Power Unit Bracket Lock Nuts 1/4"-20 • Slip the coupling over the rail sprocket. / I • Slide the rail through the power unit bracket until the coupling fits securely over the power unit sprocket.
Assembly Step 3 Attach the Rail Brackets 1/4"-20 Lock Nuts Rail Brackets • Align rail brackets to end of rail assembly, as shown. • Insert two 1/4"-20 x 5/8" hex screws and lock nuts. Tighten securely with a 7/16" socket. Hardware Shown Actual Size 1/4" - 20 x 5/8" 1/4" - 20 Lock Nut 1/4"-20x5/8 Hex Screws You have now finished assembling your garage door opener.
INSTALLATION Installation Determine SECTION" PAGES 12- 27 Step 1 Header Bracket Location If the header bracket is not rigidly fastened to a structural support on the header wall or ceiling, the safety reverse system may not work properly (see page30). The doormightnot reverse whenrequired,and couldcauseseriousinjuryor death. Installation procedures vary according to garage door types. Follow the instructions which apply to your door.
ONE-PIECE Read the Safety Instructions on page Door Without 12. They also apply Track to doors without tracks. Unfinished • Close the door and mark the inside vertical centerline of your garage door. Extend the line onto the header wall above door. Header Wall Ceiling Vertical Centerline 2x4 Su If headroom clearance is minimal, you can install the header bracket on the ceiling. See page 14.
Installation Install Step 2 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. Fastening the Header Bracket Fastening the Header Bracket to the Ceiling to the Wall • Center the bracket on the vertical guideline with the bottom edge of the bracket on the horizontal line as shown (with the arrow pointing toward the ceiling).
Installation Step 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. If the door spring is in the way you'll need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. Header Wall • Position the rail bracket against the header bracket. Bracket • Align the bracket holes and join with a clevis pin as shown.
The Safety Reversing Sensor Information you'll need before you begin the installation of 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 procedures one-piece doors.
Installation Step 4 Install the Safety Reversing Sensor (Receiving and Sending Eyes) Figure 1 Figures 1 and 2 show assembly of brackets and "C" wrap based on the recommended installation of the sensors on each side of the garage door as shown on page 16. However, Figures 3 and 4 are variations which may fit your installation requirements better. Make sure the wraps and brackets are aligned so the sensors will face each other across the garage door.
Installation Step 4 (Continued) Install the Safety Reversing Sensor 7. Center each sensor unit in a "C"- wrap with lenses pointing toward each other across the door (see Figure 5). "C" Wrap Indicator Light 8. Secure sensors with the hardware shown. Finger tighten the wing nut on the receiving eve to allow for final adjustment. Securely tighten the semting eye wing nut. Recommended 1/4-20 x 1-1/2" Hex Bolt Wire Routing Figure 5 1.
Installation Position Step 5 the Opener Follow instructions as illustrated. SECTIONAL A 2x4 laid flat is convenient to-rail distance. • Raise the opener To prevent damage to steel, aluminum, fiberglass or glass paneldoors, do not rest the opener on the door withoutusinga 2x4. which apply to your door type for setting Door or ONE-PIECE an ideal Door with Track doorRail 2x4 onto a stepladder. You will need help at this point enough.
Installation Hang Step 6 the Opener The opener could fall and injure someone if it is not properly secured. Fasten the opener securel y to structuralsupportsof the garage. Two representative installations are shown. Yours may be different. Hanging brackets should be angled, Figure 1, to provide rigid support. On finished ceilings, Figure 2, attach a sturdy metal bracket to structural supports before installing the opener. The bracket and f_stening hardware are not supplied. Supports Figur 1.
Installation Step 7 Install the Door Control Connect all Wiring and Do not connectto live electricalwiring. Connect onlyto 24 Volt low voltage wires. Connectionto live wires or higherv oltage may causeseriousinjuryfrom shock,burnor electrocution. Childrenoperatingor playing with a garage door opener can injure themselvesor others. The garagedoor oou/d o/ose and causeseriousinjury or death.
Installation Electrical Step 8 Requirements To preventelectrocutionor fire, installationand wiring must be in compliancewith localelectricaland building codes. To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet. Do NOT usean extensioncord,2-wireadapter,or change the plugin any way to makeit fit youroutlet.
Installation Install Step 10 the Lights and Lens • Install a 100 watt maximum light bulb in each socket. The lights will turn ON and remain lit for approximately 4-1/2 minutes when power is connected. Then the lights will turn OFF. • Insert bottom lens tabs into slots on chassis and tilt towards chassis to engage top tabs, then drop down gently into place. (See illustration.) Top Lens Slot Top Lens Tab • To remove, lift lens up and gently tilt slightly outward and down, then pull out to clear bulbs.
Installation Fasten Step 12 Door Bracket To prevent damage to steel, alumin urn, fiberglass or glasspaneldoors,alwaysreinforcethe insideof thedoor bothverticallyand horizontallywithan angleiron. 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 height of the top panel. supports. A vertical brace should cover the The illustration shows one piece of angle iron as the horizontal brace.
All ONE-PIECE Please read and comply with the warnings to one-piece doors also. Door Installation and reinforcement Procedure instructions on page 24. They apply Header Wall 2x4 Support --Finished Ceiling-- Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum, steel, door with glass panel, etc.).
Installation Connect Step 13 Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on page 27. SECTIONAL Doors Only Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley. Slide the outer trolley back (away from the door) about 2" as shown in Figures 1, 2 and 3. Figure 1: Figure • Fasten straight door arm section to outer trolley with a clevis pin.
All ONE-PIECE Assemble Doors the Door Arm: Door Bracket • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). Ring Fastener 1_ ._.,.G:_'_\ '_-"'---._ Dk \ _ Straight Arm _ Lock Washers 5/16" Nuts 5/16"-18 I • With the door closed, connect the straight door arm section to the door bracket with a clevis pin. Screws • Secure with a ring fastener.
ADJUSTMENT Adjustment SECTION: PAGES 28- 30 Step 1 Adjust the UP and DOWN Limits Improperadjustment of the travel limitswill interferewith the properoperation of the safety reverse system. The door mightnot reverseproper/ywhenrequiredand cou/d serious/yinjure or ki// someoneunderit. Test the safety reversesystem monthly,and following all adjustmentsto thetravel limits.See page30. Do not make any limit adjustments until the safety reversing sensors are completely installed.
Adjustment Adjust Step 2 the Force Too muchforce on the doorwill interferewith the proper operationof the safety reversesystem. The door might not reverseproper/ywhen requiredand cou/d serious/y injureor ki// someoneunderit. Do not increasethe force beyondthe minimumamountrequiredto close the door. Do not use the force adjustmentsto compensatefor a bindingor stickinggaragedoor.Test the safetyreverse system monthly,and following all adjustmentsto force levels.See page30.
Adjustment Step 3 Test the Safety Reversing Sensor Without a properly working safety reversing sensor, persons(particularly children)could be seriously injured or killed if trappedby a c/osinggaragedoor. Repeatthis test oncea month. • 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.
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. 3. Operate opener only when the door is in full view and free from any obstruction. Keep the door in sight until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR. 4. Check safety reversal system monthly. See page 30.
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 bar or button down until the door starts to move. • The Outdoor Accessories) Key Switch or Keyless Entry: Weakor brokenspringscould allow an open door to fall (either rapidly or unexpectedly), resulting in serious injury, death or property damage.
Receiver & Remote Control Programming NOTICE: To comply with FCC rules, adjustment or modification of this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the transmitter battery. THERE ARE NO OTHER USER SERVICEABLE PARTS. Childrenoperatingor playingwith a garagedoor opener can injurethemselvesor others. The garagedoor could c/ose and cause serious injury or death. Do not allow childrento operatethe door control(s)or remotecontrol transmitter(s).
Troubleshooting Situation Probable Cause & Solution The opener doesn't 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. (Some outlets are controlled by a wall switch.) 2. Have you disabled all door locks'? Review installation instruction warnings on Page 11. 3. Is there a build-up of ice or snow under the door'? The door may be frozen to the ground.
Troubleshooting (continued) Situation Probable Cause & Solution The door opens but won't close: 1. If the opener lights blink, check the safety reversing sensor. See page 22. 2. If the opener lights do not blink and it is a new installation, check the down force. See Adjustment Step 2, page 29. For an existing installation, see below. Repeat the safety reverse test after the adjustment is complete. The door reverses fi_r no apparent reason and opener lights don't blink: 1.
Repair Parts Rail Assembly Parts 10 2 8 7 3 6 Installation KEY PART NO. NO. DESCRIPTION 1 41A4796 Hardware bag 2 41A4795 3 12B569-1 Hardware bag (includes sprocket coupling) Left rail bracket 4 12B569-2 Right rail bracket 5 1C4827-2 Screw drive rail assembly 6 12B560 7 81C168 Rail support brace Rack 8 41C4677 Complete trolley assembly 9 25A18 Sprocket coupling 10 41A4836 Drive sprocket kit Parts 6 4 2 8 KEY PART NO. NO.
Repair Parts Opener Assembly Parts Brown Wire Drive_ (Down) Contact _ Pr_ = / I Center Limit Contact 8¢ LIMIT SWITCH ASSY, d, (Up) Contact _ Yellow Wire 8a 9 _Ui _10 8b 8 13 14 17 15 KEY NO. PART NO. DESCRIPTION KEY NO. PART NO.
Accessories 139.53702 Available For Your Opener 139.53879 Emergency Key Release: Required for a garage with NO access door. Enables homeowner to open garage door manually from outside by disengaging trolley. 139.53703 Outdoor 139.53859 Key Switch: 139.53876 8 Foot Rail Extension 139.
Index Access Door/Emergency Electrical Key Release Safety Warnings Accessory ............................................................................................... 6, 7, 35, 36 ...................................................................................................................................... Garage Door Testing for balance, binding and sticking .................................................................................................................
SEARS I:RRFTSMRN, OWNER'S MANUAL GARAGE DOOR OPENER For the repair or replacement parts you need Call 7 am - 7 pm, 7 days a week 1-800-366-PART Model No. 139.53491SRT (1-800-366-7278) For in-home major brand repair service Call 24 hours a day, 7 days a week 1-800-4-R E PAl R (1-800-473-7247) The model number label is located on the For the location of a Sears Repair Service Center in your area Call 24 hours a day, 7 days a week 1-800-488-1 back of your opener.
