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Owner's Manual
1/2 HP
GARAGE DOOR OPENER
For Residential Use Only
Model No:
139.53978SRT
CAUTION: [] Safety Precautions
Read and follow all safety rules
[] Assembly
and operating instructions
[] Installation
before first use of this product.
[] Adjustment
[] Maintenance
Fasten the manual near the
garage door after installation.
[] Operation
[] Troubleshooting
[] Parts List
Complies with UL 325 ,/"_'_
regulations effective _ U| |
January 1, 1993
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U
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Contents Page Contents Page A review of safety alert symbols ................................. 2 Installthe lightand lens ................................................. 19 You'll need tools.......................................................... 3 Attach emergency release rope and handle................. 19 Safety information regarding garage door locks Electrical requiramemts ................................................. 20 and ropes ....................................................
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You'll Need Tools During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below. _ckets _ Adjustable End Wrench Stepladder An unbalanced garage door might not reverse To avoid damage to the garage door and when required and someone under the door opener, disable locks before installing and could be seriously injured or killed. operating the opener. Use a wood screw or nail If your garage door binds, sticks or is out of to hold looks in the "open" (
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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 Horizontal and vertical reinforcement is required. is needed for lightweight garage doors See page 17. (fiberglass, steel, aluminum, door with glass panels, etc.). See page 24 for details, Header Wall Extension Spdng Access Door OR Spdng O safety Reversing Ser_sor Floor must be level Sensor across width of door, Header Closed Posit
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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. &fastening _'_ _ h_rdware is required. See page 17. Header Wall _ _ _Trolley Stop Bolt Cable Trolley EmergenCy Release Rope & Handle leader Reversinc ap between floor and bottom Sensor" ----- Safety of door must not exceed 1/4". One-Piece Door with Track Reversing Sensor Based on your particular requirements, there are s
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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. Hardware for assembly and installation is shown on page 7. Standard Control Console Security+ Keyless Entry Security-I- Three-Function Remote Control with Visor Clip (2) Ught Lens Troney Rail Center/Back Sections Sprocket Cover Chain Hanging Brackets Id
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Separate all hardware from the packages in the rail carton and the opener carton, as shown below, for the assembly and installation procedures. ASSEMBLY O @ © @ Lock Nut Lock Washer Nut 1/4"-20 (2) 3/8' (1) 3/8" (1) Master Link(2) Bolt 1/4"-20 x 1-5/4" (2) Chain Spreader (2) U Idler Bolt (1) TroUey Threaded Shaft (1) INSTALLATION D,,,L,H,H,I,,,,,D © © 0 Hex Screw Spacer (2) Nut Lock Washer Ring 5/16'-18x7/8" (4) 5/16"-18 (8) 5/16" (7) Fastener (3) I _] Illl II !!!rl!l I]ll II I1_ Screw ]"HlJ::]:
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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). The hole above this window is larger on the top of the rail than on the bottom. A smaller hole 3-1/2" away is close to the rail edge. The back rail has a similar hole close to the edge, about 4-3/4" from the far end. A 3-piece rail uses tw
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Assembly Step 2 I Fasten the Rail to the Opener I To fasten rail, use only those screws mounted in the top of the opener. Any other screws will • Insert a 1/4"-20xl -3/4 bolt into the cover cause serious damage to the opener. 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. • Place the U bracket, flat side down, on the opener and align the bracket holes with the screw holes. Screws • Opener Sp
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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 Dispensing Carton through cable loop and trolley slot. • Push master link cap over pins and past pin notches. Leave Chainand Cable • Slide clip-on spring over cap and onto pin Inside D_spensing Carton to PreventKinking. notches until both pins
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Assembly Step 5 Tighten the Chain I • Spin the inner nut and lock washer down the Figure I o=_ Lo_ Tro,.y threaded shaft, away from the trolley. Nut Washer Shaft • To tighten the chain, turn outer nut in the direction To T_.,_n Outer Nut.--_I ! / 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. Inner Nut Sprocket noise can result if chain is too loose. When installation is complete, you may not
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Installation Section: Pages 12 - 27 Installation Step I Determine Header Bracket Location If the header bracket Is not rigidly fastened to Installation procedures vary according to a structural support on the header wall or garage door types. Follow the instructions ceiling, the safety reverse system may not which apply to your door. work properly (see page 30). The door might not reverse when required, and could cause serious injury or death. The garage door springs, cables, pulleys, brackets a
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Read the Safety instructions on page 12. They also apply to doors without tracks. Header Wall Vertical Centerflne 2x4 • 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. OPTIONAL CEILING MOUNT See page 14. FOR HEADER BRACKET • If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) to secur
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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 Install the Header Bracket Installation Step 2 I your particular requirements. Wall Header Bracket Installation • Mark the vertical set of bracket holes. Drill 3/16" • Center the bracket on the vertical guideline with the bottom edge of the bracket on the horizontal pilot holes and fasten the bracket securely to a line as shown (with the arrow pointing t
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Attach the Rail to the Header Bracket Installation Step 3 I 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. • 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 H
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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. Outer Trolley Inner Trolley • Raise the opener onto a stepladder as shown, You will need help at this point if the ladder is not tall enough. 2x4 Door • Open the door all the way and place a 2x4 laid flat on the top section beneath the rail. If the top panel hits the trolley when you raise the door, pull down on the
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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 Figure I finished ceilings, Figure 2, attach a sturdy metal bracket to structural supports before installing the opener. The bracket and fastening hardware are not provided. See accessory page 38. Supports 1. Measure the distance from each side of the opener to the structural support. 2. Cut both pieces of the hanging b
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Installation Step 6 Install the Door Control I Do not connect to live electrical wiling. Connect only to 24 Volt/oH, voltage wires. Connection to Locate the door control within sight of the door at a live wires or higher voltage may cause serious minimum height of 5 feet where small children injury from shock, burn or electrocution. cannot reach, and away from all moving parts of the Children operating or playing with a garage door and door hardware. door opener can injure themselves or others.
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6. Attach the User Safety Instruction label to the wall Do NOT connect the power and operate the near the door control, and the Maintenance openerat this time. The trolley will travel to the Instruction label in a prominent location on the full open position but will not return to the inside of the garage door. close position until the sensor beam is connected and properly aligned. Page 32 explains how to use the door control. See Safety Reversing Sensor instructions beginning on page 21. Instal
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Installation Step 9 I Electrical Requirements I To prevent electrocution or fire, installation and wiring must be in compliance with local electrical and building codes. To reduce the risk of electric shook, your garage door opener has a grounding type plug with a third Do NOTuse an extension cord, 2-wire adapter, grounding pin. This plug will onlyfit into a grounding or change the plug in any way to make it fit your outlet. type outlet. If the plug doesn't fit into the outlet you have, contact
