TM Garage Door Opener Owner’s Manual Model 1000SDC-R 1/3 HP Model 2000SDC-R 1/2 HP For Residential Use Only ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned. ■ Periodic checks of the opener are required to ensure safe operation. ■ The model number label is located on the back of your opener.
Contents Safety alert symbol review ...........................................2 Safety information and precautions ..............................3 Testing your garage door for binding & balance ..........3 Hardware supplied ........................................................3 Carton inventory ...........................................................4 Illustration of sectional door installation .....................5 Illustration of one-piece door installation .....................
Safety Information and Precautions CAUTION WARNING To avoid damage to the garage door and opener, disable locks before installing and operating the opener. Use a wood screw or nail to hold locks in the "open" (unlocked) position. Operation at other than 120V 60 Hz will cause opener malfunction and damage. An unbalanced garage door might not reverse when required and someone under the door could be seriously injured or killed.
Carton Inventory Your garage door opener is packaged in two cartons which contain the power unit and all 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. KEEP THE FOAM INTACT (see page 6). Hardware is listed on page 3.
Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. You may find it helpful to refer back to this page as you proceed with the installation of your opener. SECTIONAL Door or ONE-PIECE Door with Track Installation FINISHED CEILING Support bracket & fastening hardware is required. See page 16. Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.).
Assembly Section: Pages 6 - 7 ASSEMBLY STEP 1 Fasten the Rail To the Power Unit 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. • Slip the coupling over the rail sprocket. • 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 • 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. Rail Brackets 1/4"-20 Lock Nuts Hardware Shown Actual Size 1/4" - 20 x 5/8" Hex Screw 1/4" - 20 Lock Nut 1/4"-20x5/8 Hex Screws Rail You have now finished assembling your garage door opener.
Installation Section: Pages 8 – 23 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 26). 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 8. 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. See page 10. • If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not supplied) to securely fasten the 2x4 to structural supports as shown.
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 Fastening the Header Bracket to the Wall Fastening the Header Bracket to the Ceiling • 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. • Position the rail bracket against the header bracket. • Align the bracket holes and join with a clevis pin as shown. • Insert a ring fastener to secure.
The Protector System® IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR WARNING 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. 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 4 Install the Safety Reversing Sensor (Receiving and Sending Eyes) 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. Figure 1 DOOR TRACK MOUNT (Right Side) Door Track Lip They may be installed in one of three ways, as follows.
Installation Step 4 (Continued) Install the Safety Reversing Sensor Mounting and Wiring the Safety Sensors • Slide a 1/4"-20x1/2" carriage bolt head into the slot on 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. See Figure 4. • Finger tighten the wing nuts. Figure 4 Wing nut 1/4"-20x1/2" Carriage bolt Recommended Wire Routing 1.
Installation Step 5 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 or ONE-PIECE Door with Track A 2x4 laid flat is convenient for setting an ideal doorto-rail distance. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.
Installation Step 6 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 7 WARNING Install the Door Control and Connect all Wiring DO NOT CONNECT TO LIVE ELECTRICAL WIRING. CONNECT ONLY TO 24 VOLT LOW VOLTAGE WIRES. CONNECTION TO LIVE WIRES OR HIGHER VOLTAGE MAY CAUSE SERIOUS INJURY FROM SHOCK, BURN OR ELECTROCUTION. 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 push button or the remote control transmitter.
Installation Step 8 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.
Installation Step 10 Install the Lights and Lens 100 Watt Max. Light Bulb • 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.) • To remove, lift lens up and gently tilt slightly outward and down, then pull out to clear bulbs.
Installation Step 12 WARNING 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 21. 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 20. They apply to one-piece doors also. 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 Step 13 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on page 23. 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 the 5/16"x1" clevis pin.
All ONE-PIECE Doors 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 the 5/16"x1-1/4" clevis pin. • Secure with a ring fastener. Adjustment Procedures for One-Piece Doors On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted.
Adjustment Section: Pages 24 – 26 Adjustment Step 1 WARNING Adjust the UP and DOWN Limits 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 monthly, and following all adjustments to the travel limits. See page 26. Do not make any limit adjustments until the safety reversing sensors are completely installed.
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 monthly, and following all adjustments to force levels. See page 26.
Adjustment Step 3 WARNING Test The Protector System ® 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 will flash for 5 seconds.
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: • The Remote Control Transmitter. 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 Outside Keylock or Keyless Entry. (See Accessories) WARNING Weak or broken springs could allow an open door to fall (either rapidly or unexpectedly), resulting in serious injury, death or property damage.
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 door controls or remote controls. A moving garage door could injure or kill someone under it. Activate the opener only when you can see the door clearly, it is free of obstructions, and is properly adjusted.
Having a Problem? 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 7. 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 18. 2. If the opener lights do not blink and it is a new installation, check the down force. See Adjustment Step 2, page 25. 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 7 5 8 1 2 3 4 6 KEY NO. 1 PART NO. 41A4795 2 3 4 5 12B569-1 12B569-2 81C168 41C4677 6 7 8 1D4828-1 41A4836 25A18 DESCRIPTION Hardware bag (Includes sprocket coupling) Left rail bracket Right rail bracket Rack Complete trolley assembly One-piece T-rail Drive sprocket kit Sprocket coupling Installation Parts 3 1 LOCK LIGHT KEY NO. PART NO.
Repair Parts Power Unit Parts w ew Drive Brown Wire 2 (Down) Contact 1 DN UP 94 LIMIT SWITCH ASSY. Drive Gear Center Limit Contact 4 5 Yellow Wire 3 6 7 8c (Up) Contact Grey Wire 8b 9 8d 10 8a 8 11 12 13 17 14 15 16 KEY PART NO. NO. 1 2 3 4 5 6 7 8 8a 8b 8c 8d 31D426 41B4245 30B363 30B387 12A373 41A3150 41D4671 12D554 41D4759 144B41 144B42 20C14 158A69 KEY NO.
Accessories Available For Your Opener Model 1702LMC Outside Quick Release: Required for a garage with NO access door. Enables homeowner to open garage door manually from outside by disengaging trolley. Model 971LMC SECURITY✚ Single-Function Remote Control: Includes visor clip. Model 59LMC Outside Keylock: Operates the garage door automatically from outside when remote control is not handy. Model 972LMC SECURITY✚ 2-Channel Remote Control: Includes visor clip.
Index Access Door/Outside Quick Release Accessory .........................................................................................................31, 34 Electrical Safety Warnings ......................................................................................................................................7, 18, 27 Garage Door Testing for balance, binding and sticking.................................................................................................................
LIFT-MASTER SERVICE IS ON CALL OUR LARGE SERVICE ORGANIZATION SPANS AMERICA AND CANADA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE SIX DAYS A WEEK. SIMPLY DIAL OUR TOLL FREE NUMBER: HOW TO ORDER REPAIR PARTS Selling prices will be furnished on request or parts will be shipped at prevailing prices and you will be billed accordingly.