OWNER’S MANUAL Model No. 139.53525SRT 139.53627SRT 139.53636SRT 139.53640SRT 139.53641SRT For Residential Use Only Caution: Read and follow all safety rules and operating instructions before first use of this product. ® 1/2 HP GARAGE DOOR OPENER ■ ■ ■ ■ ■ ■ ■ 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 ..................................................................3 Testing your garage door for sticking, binding and balance...............................................................3 Illustration of sectional door installation .....................
You'll Need Tools During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below. Pencil Carpenter's Level 1 2 Hack Saw Tape Measure Wire Cutters Drill Stepladder Claw Hammer 3/16", 5/16" and 5/32" Drill Bits 1/2" and 7/16" Sockets and Wrench Pliers Screwdriver WARNING Adjustable End Wrench CAUTION To avoid damage to the garage door and opener, disable locks before installing and operating the opener.
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 reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 24 for details. FINISHED CEILING Support bracket & fastening hardware is required. See page 17.
One-Piece Door without Track ONE-PIECE Door Installation Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. Slack in chain tension is normal when garage door is closed. FINISHED CEILING Support bracket & fastening hardware is required. See page 17.
Opener Carton Inventory Your garage door opener is packaged in two cartons which contain all parts illustrated below. 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.
Separate all hardware from the packages in the rail carton and the opener carton, as shown below, for the assembly and installation procedures. Assembly Hardware Hex Screw 5/16" - 18 x 7/8" (3) Washered Screw 5/16" - 18 x 1/2" (2) (mounted in opener) Nut 5/16" - 18 (5) Carriage Bolts 1/4" - 20 x 1/2" (4) Trolley Threaded Shaft (1) Master Link (2) Lock Nut 1/4" - 20 x 7/16" (4) Lock Washer 5/16" (4) Installation Hardware ASE GRE RAIL .
Assembly Section: Pages 8 – 11 To avoid installation difficulties, do not run the garage door opener until instructed to do so. Make sure bolt necks are seated in the square holes and rails are aligned before you tighten lock nuts. (See right and wrong views). Improper assembly can cause jerky trolley operation, noise and/or nuisance door reversals. Assembly Step 1 Assemble the T-rail & Attach the Cable Pulley Bracket • Align the 3 T-rail sections on a flat surface exactly as shown.
Hardware Shown Actual Size Assembly Step 2 Install the Trolley on the T-rail • Attach the threaded shaft to the trolley with the lock washer and nuts as shown. Lock Washer 5/16" Nut 5/16"-18 Trolley Lock Washer 5/16" Outer Nut 5/16" Trolley Threaded Shaft Inner Nut 5/16" TO GA R AG E DO OR Trolley Temporary Stop Screwdriver • As a temporary stop, insert a screwdriver into the hole in the front end of the T-rail. • Slide the trolley assembly along the rail to the screwdriver stop.
Assembly Step 4 WARNING Install the Chain/Cable & Attach the Sprocket Cover Serious injury can result if fingers become entangled in moving opener sprocket. Attach sprocket cover securely. Never operate opener while your hand is near the opener sprocket. Dispensing Carton Figure 2 Leave Chain and Cable Inside Dispensing Carton to Prevent Kinking.
Assembly Step 5 Tighten the Chain & Cable Outer Nut • 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. As you turn the nut, keep the chain from twisting. • When the chain is approximately 1/2" above the base of the T-rail at its midpoint, re-tighten the inner nut to secure the adjustment. Sprocket noise can result if chain is either too loose or too tight.
Installation Section: Pages 12 – 27 Installation Step 1 WARNING Determine 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 page 30). The door might not reverse when required, and could cause serious injury or death. The garage door springs, cables, pulleys, brackets and their hardware are under extreme tension. Do not attempt to loosen, move or adjust them yourself.
ONE-PIECE Door Without Track Read the Safety instructions on page 12. They also apply to doors without tracks. Unfinished Ceiling Header Wall Vertical Centerline • 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. See page 14.
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 2 Install the Header Bracket Fasten the Header Bracket 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 T-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 T-rail to clear the spring. • Position the cable pulley bracket against the header bracket. • Align the bracket holes and join with a clevis pin as shown. • Insert a ring fastener to secure.
Installation Step 4 CAUTION Position the Opener To prevent damage to steel, aluminum, fiberglass or glass panel doors, do not rest the opener on the door without using a 2x4. Follow instructions which apply to your door type as illustrated. SECTIONAL Door & ONE-PIECE Door with Track A 2x4 laid flat is convenient for setting an ideal door-to-T-rail distance. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.
Installation Step 5 WARNING Hang the Opener The opener could fall and injure someone if it is not properly secured. Fasten the opener securely to structural supports of 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 fastening hardware are not supplied.
Installation Step 6 WARNING Install the Deluxe Lighted Console Wall Control Children operating or playing with a garage door opener can injure themselves or others. The garage door could close and cause serious injury or death. Install the Wall Control (or any additional push buttons) out of the reach of children and away from all moving parts of the door and door hardware, but where the garage door is visible. Do not allow children to operate the push button(s) or the remote control(s).
Installation Step 7 Install the Lights and the Lenses Install the lights: • Install a 75 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. • If the bulbs burn out prematurely due to vibration, replace them with standard neck "Garage Door Opener" bulbs.
Installation Step 9 WARNING Electrical Requirements To prevent electrocution or fire, installation and wiring must be in compliance with local electrical and building codes. Do NOT use an extension cord, 2-wire adapter, or change the plug in any way to make it fit your outlet. 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.
The Safety Reversing System 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. WARNING Without a properly working safety reversing sensor, persons (particularly children) could be injured or killed by a closing garage door. Read and follow all instructions.
Installation Step 10 Install the Safety Reversing Sensor Figure 2 Figures 2 and 3 show assembly of brackets and "C" wrap based on the recommended installation of the sensors as shown on page 21. However, Figures 4 and 5 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. • Fasten the "C" wraps to the mounting brackets having square holes, using the hardware shown in Figure 2.
• Insert the wire connector into each sensor and push until you hear a click, Figure 6. The white tab on the sensor should be flush with the back of the connector.
Installation Step 11 CAUTION Fasten Door Bracket To prevent damage to steel, aluminum, fiberglass or glass panel doors, always reinforce the inside of the door both vertically and horizontally with an angle iron. 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.
All ONE-PIECE Door Installation Procedure Please read and comply with the warnings and reinforcement instructions on page 24. They apply to one-piece doors also. Header Wall – Finished Ceiling – 2x4 Support Header Bracket Door Bracket Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum, steel, door with glass panel, etc.).
Installation Step 12 Connect 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: • Fasten straight door arm section to outer trolley with a clevis pin. Secure the connection with a ring fastener.
All ONE-PIECE Doors Door Bracket Assemble the Door Arm: • Fasten the straight and curved door arm sections together to the longest possible length, with a 2 or 3 hole overlap. • With the door closed, connect the straight door arm section to the door bracket with a clevis pin. • Secure with a ring fastener.
Adjustment Section: Pages 28 – 30 Adjustment Step 1 WARNING Adjust the UP and DOWN Limits Do not make any limit adjustments until the safety reversing sensors are completely installed. Improper adjustment of the travel limits will interfere with the proper operation of the safety reverse system. The door might not reverse properly when required and could seriously injure or kill someone under it. Test the safety reverse system following all adjustments to the travel limits. See page 30.
Adjustment Step 2 WARNING Adjust the Force Too much force on the door will interfere with the proper operation of the safety reverse system. The door might not reverse properly when required and could seriously injure or kill someone under it. Do not increase the force beyond the minimum amount required to close the door. Do not use the force adjustments to compensate for a binding or sticking garage door. Test the safety reverse system following all adjustments to force levels. See page 30.
Adjustment Step 3 WARNING Test The Safety Reversing Sensor Without a properly working safety reversing sensor, persons (particularly children) could be seriously injured or killed if trapped by a closing garage door. Repeat this test once a 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. The door will not move more than an inch, and the opener light(s) will flash.
IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING 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.
Operation of Your Opener Activate the opener with any of the following devices: 1. The 3-Function Remote control. Hold large push button down until the door starts to move. 2. The Wall Control. Hold push bar down until the door starts to move. 3. The Key Switch or Keyless Entry. When the Opener is Activated: 1. If open, the door will close. If closed, it will open. 2. If closing, the door will reverse. 3. If opening, the door will stop (allowing space for entry and exit of pets and for fresh air). 4.
Receiver and Remote Control Programming To comply with FCC rules, adjustment or modifications of this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS. WARNING Children operating or playing with a garage door opener can injure themselves or others. The garage door could close and cause serious injury or death. Do not allow children to operate the wall push button(s) or remote control(s).
Having a Problem? Situation Probable Cause and Solution The opener doesn't operate from either the Wall 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.
Having a Problem? (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 23. 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 for no apparent reason and opener lights don't blink: 1.
Repair Parts Rail Assembly Parts 4 2 3 1 6 5 E AS RE IL G 3A4 .8 NO RA RAGE TO GA DOOR 4 7 KEY NO. PART NO. 1 2 3 4 5 6 7 1A995 41A3489 1B3117 183B110 83A4 41A3473 41B2616 DESCRIPTION 41A3534 Master link kit Complete trolley assembly T-rail – center section T-rail – end section (each) Rail grease Chain and cable Cable pulley bracket assembly NOT SHOWN Rail assembly hardware kit (includes hardware illustrated on page 7). Installation Parts 2 1 KEY NO. PART NO.
Repair Parts Opener Assembly Parts 1 2 4 9 7 3 5 6 8 20 8 19 3 18 10 11 12 9 5 15 17 13 14 16 Brown Wire (Down) Contact LIMIT SWITCH ASSEMBLY DN UP Drive Gear Center Limit Contact KEY PART NO. NO.
Accessories Sears offers many useful accessories for your garage door opener. They are illustrated below with Sears model numbers and descriptions. 53702 Emergency Key Release: Required for a garage with NO access door. 53759 3-Function Compact Remote Control: With key ring & Velcro fastening strip. 53703 Outdoor Key Switch: Opens the garage door automatically from outside when remote control is not handy. 53773 Wire-In Light Control: Controls interior or exterior lights.
Index Access Door/Outside Key Release Accessory ...............................................................................................4, 5 Chain Tension ..............................................................................................................................................4, 5, 11 Electrical Safety Warnings........................................................................................................................
® OWNER’S MANUAL GARAGE DOOR OPENER For the repair or replacement parts you need Call 7 am – 7 pm, 7 days a week Model No. 139.53225SRT1 139.53325SRT1 139.53425SRT1 139.53628SRT1 139.53629SRT1 139.53635SRT1 139.53637SRT1 139.
