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Owner's Manual
CRHFTSMBN*
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.
Complies with UL 325
regulations effective
January 1, 1993
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A
Visit our Craftsman website: www.sears.com/craftsman
Safety Precautions
Assembly
Installation
Adjustment
Maintenance
Operation
Troubleshooting
Parts List
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Table of Contents
Related Manuals for Sears CRHFTSMBN Series
Summary of Contents for Sears CRHFTSMBN Series
- Page 1 Adjustment Maintenance Fasten the manual near the garage door after installation. Operation Troubleshooting Parts List Complies with UL 325 regulations effective January 1, 1993 Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A Visit our Craftsman website: www.sears.com/craftsman...
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Page 2: Table Of Contents
Contents Page Contents Page A review of safety alert symbols..... 2 Install the light and lens..........19 You'll need toots..........3 Attach emergency release rope and handle....19 Safety information regarding garage door locks Electrical requirememts..........20 and ropes............Safety reversing sensor information......21 Testing your garage door for sticking, binding Install the safety reversing sensor...... -
Page 3: You'll Need Toots
You'll Need Tools During assembly, installation and adjustment of the opener, instructions will call for hand tools shown below. Hack Saw Claw Hammer Screwdriver Locking pliers Adjustable End Wrench 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 couid be seriously injured or killed,... -
Page 4: Illustration Of Sectional Door Installation
Before you begin, survey your garage area to see whether any of the conditions beiow appiy to your installation. FINISHED CEILING Support bracket & fastening hardware is required. Horizontal and vertical reintotcement Seepage 17. is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). -
Page 5: Illustration Of One-Piece Door Installation
One-Piece Door without Track Before you begin, survey your garage area to FINISHED C0LING see whether any of the conditions beiow apply Support bracket to your installation. & fastening hardware is teguired. See page 17. Reversing between floor and bottom Sensor One-Piece Door with Track Safety of door must not exceed 1/4'. -
Page 6: Carton Inventory
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. Security+ Keyless Entry standard Control Console Security+ Three-Functkm... -
Page 7: Hardware Inventory
Separate all hardware from the packages in the rail carton and the opener carton, as shown below, for the assembly and installation procedures. -
Page 8: Assembly Section: Pages
Assembly Section: Pages 8-11 To avoid installation difficulties, do not run the garage door opener until instructed to do so. Assembly Step 1 Assemble the Rail & Install the Trolley The front rail has a cut out “window" at the door end (see illustration). -
Page 9: Fasten The Rail To The Opener
Assembly Step 2 Fasten the Rail to the Opener To fasten rail, use only those screws mounted in the top of the opener. Any other screws will Insert a 1/4"-20x1 -3/4 bolt into the cover cause serious damage to the opener. protection bolt hole on the back end of the rail as shown. -
Page 10: Install Chaiivcable & Attach The Sprocket Cover
Assembly Step 4 Install the Chain/Cable and 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. 1. Pull the cable around the idler pulley and toward the trolley. -
Page 11: Tighten The Chain
Assembly Step 5 Tighten hie Chain • Spin the inner nut and lock washer down the Figure 1 threaded shaft, away from the trolley. Outer Lock Trolley Nut Washer shaft • To tighten the chain, turn outer nut in the direction shown (Figure 1). -
Page 12: Installation Section: Pages
Installation Section: Pages 12-27 Installation Step 1 Determine Header Bracket Location It 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 appiy to your door. -
Page 13: One-Piece 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. -
Page 14: Install The Header Bracket
You can attach the header bracket either to the Installation Step 2 wall above the garage door, or to the celling. Follow the instructions which will work best for InstaU the Header Bracket your particular requirements. Wall Header Bracket Installation Center the bracket on the vertical guideline with •... -
Page 15: Attach The Rail To Header Bracket
Installation Step 3 Attach the Rail to the Header Bracket NOTE: (Optional) W ith an existing Craftsm an installation, you m ay re-use the old header brack with the two plastic spacers included in the hard bag. Place the spacers inside the bracket on eac side of the rail, as illustrated. -
Page 16: Position The Opener
Installation Step 4 Position the Opener Follow instructions which apply to your door prevent damage steel, aluminum, type as illustrated. fiberglass or glass panel doors, do not rest the opener on the door without using a 2x4. A 2x4 laid flat is convenient for setting an ideal door-to-T-rail distance. -
Page 17: Hang The Opener
Installation Step 5 Hang the Opener The opener could fall and Injure someone if it Fasten the opener is not properly secured. 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. -
Page 18: Install The Door Control
Installation Step 6 Instan the Door Control Do not connect to five etectricat mnng. Connect only to 24 Volt low voltage wires. Connection to Locate the door control within sight of the door at a live wires or higher voltage may cause serious m inim um height of 5 feet where sm all children injury from shock, bum or electrocution. -
Page 19: Install The Light And Lens
6. Attach the User Safety Instruction label to the wall Do NOT connect the power and operate the near the door control, and frie Maintenance The trolley will travel to the opener at this time. Instruction label in a prominent location on the full open position but will not return to the inside of the garage door. -
Page 20: Electrical Requirememts
Installation Step 9 Electrical Requirements To prevent electrocution or fire, installation and wiring must be in compliance with local electrical and building codes. To reduce the risk of electric shock, your garage use an extension cord, 2-wire adapter, door opener has a grounding type plug with a third onlyiW or change the plug in any way to make it fit grounding pin. -
Page 21: Safety Reversing Sensor Information
The Safety Reversing System IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR The safety reversing sensor must\i& connected Without proparly working safety reversing and aligned correctly before the garage door sensor, persons (particuiariy chiidren) could be injur^ or killed by a dosing garage door. opener will move in the down direction. - Page 22 Figure 2 (Right side) door track mount 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. They may be installed in one of three ways, as follows.
- Page 23 MOUNTING AND WIRING THE SAFETY SENSORS Figure 5 • Slide a 1/4"-20x1/2" carriage bolt head into the slot on Wing nut each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension.
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Page 24: Fasten Door Bracket (Sectional Door)
Installation Step 11 Fasten Door Bracket prevent damage to steel, aluminum, Follow instructions which apply to your door fibergiass or giass panei doors, always type as illustrated below or on page 25. reinforce the inside of the door both verticaily and horizontaily with an angle Iron. -
Page 25: Fasten Door Bracket (One-Piece Door)
Please read and comply with the warnings and reinforcement instructions on page 24. They apply to one-piece doors aiso. Header Wall • Center the bracket on the top of the door, in line with the header bracket as shown. Mark holes. •... -
Page 26: Connect Door Arm To Trolley (Sectional Door)
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. Puil the emergency release handle to disconnect the outer trolley from the inner trolley. -
Page 27: Connect Door Arm To Trolley (One-Piece Door)
Assemble the Door Arm: Ring • Fasten the straight and curved door arm sections -------- Fastener together to the longest possible length {with a 2 or Nuts 3 hole overiap). • With the door closed, connect the straight door ann section to the door bracket with the 5/16"x1 -1/4"... -
Page 28: Adjustment Section: Pages
Adjustment Section: Pages 28 - 30 Adjustment Step 1 Adjust the UP and DOWN Limits Improper adjustment of the travel limits will Do not make any limit adjustments until the interfere with the proper operation of the safety safety reversing sensors are completely reverse system. -
Page 29: Force Adjustments
Adjustment Step Adjust the Force Too much force on the door will interfere with the proper operation of the safety reverse Force adjustment controls are located on the back system. The door might not reverse property panel of the opener. Force adjustment settings when required and could seriously injure or kill regulate the amount of power required to open and someone under it. -
Page 30: Test The Safety Reversing Sensor
3 or 4 complete travel cycles to test adjustment. Ond*inch Board If the door will not reverse after repeated (or a 2x4 laid flat) adjustment attempts, call Sears Service Center Important safety check for garage door opener service. Repeat Adjustment Steps 1, 2 and 4 after: •... -
Page 31: Operation Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of severe injury or death to persons: 1. READ AND FOLLOW ALL INSTRUCTIONS. 5. If possible, use the emergency release only when the door is in a closed position. Caution 2. Do not permit children either to operate or to should be taken whenever the disconnect cord play with the opener. -
Page 32: Operation Of Your Opener
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 Weak or broken springs could allow an open door fall (either rapidly... -
Page 33: Receiver And Remote Control Programming
Receiver and Remote Control Programming To comply with FCC rules, adjustment or modifications o( this receiver and/or SECUliri'Y^' transmitter are prohibited, except for changing the code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS. Your garage door opener receiver and remote control have been pre-set at the factory. -
Page 34: Having A Problem
Having a Problem? Situation Probable Cause and Solution The opener doesn t 1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn’t light, operate from either check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.) the Door Controlar 2. - Page 35 Having a Problem? (continued) Situation Probable Cause Solution & The door opens but 1. If the opener lights blink, check the safety reversing sensor. See page 23. won't dose: 2. If the opener lights do not blink and it is a new installation, check thè down force. See Adjustment Step 2, page 29.
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Page 36: Repair Parts, Rail Assembly
Repair Parts Rail Assembly Parts PART DESCRIPTION 1A995 Master link kit 41C5141-1 Complete trolley assembly 183C158-3 Rail - front (header) section 183C157-3 Rail - center/back section (2) 144C56 Chain Idler pulley 41A5249 Chain and cable 144C62 Spreader (2) 12D598 U bracket Installation Parts PART DESCRIPTION... -
Page 37: Repair Parts, Opener Assembly
Repair Parts Opener Assembly Parts Drive Gear Center Limit (Up) Contact Contact PART PART NO. NO. DESCRtPTION NO. NO. DESCRIPTION 31D380 Sprocket cover 41D3058 Universal replacement motor & 41C4220A bracket assembly Gear and sprocket assembly Complete with: Complete with: Motor, worm, Spring washer bracket, bearing assembly, RPM sensor... -
Page 38: Accessories
Accessories Sears offers many useful accessories for your garage door opener. They are illustrated below with Sears model numbers and descriptions. 139.53702 Emergency Key Release: 139.53681 SECURITY+ 3-Function Remote Control: Required\ox a garage with NO access door. Enables homeowner Includes visor clip. -
Page 39: Index
Index Access Door/Outside Key Release Accessory........................4.5 Chain Tension................................. 4, 5,11 Electricai Safety Warnings............................2,20,31 Garage Door Testing for balance, binding and sticking........................3,28,31 Determining high point of travel: Sectional door...................................12 One-piece door................................. 13 Disabling existing locks..............................3,11 Door clearance brackets (for garages with low headroom)..................12,38 Force controls Adjustment procedures.............................. -
Page 40: How To Order Repair Parts
HomeCentraP SEARS WARRANTY FULL 90-DAY WARRANTY ON GARAGE DOOR OPENER For 90 days from the date of purchase, Sears will repair this Garage Door Opener, free of charge, if defective in materiai or workmanship. LIMITED WARRANTY From the 91st day until one yearfrom the date of purchase, Sears will furnish replacement parts for any defective parts, free of charge.