CONTENTS ® 1/2 hp Belt Drive Garage Door Opener FOR RESIDENTIAL USE ONLY LW3500 .. ■ Please read this manual and the enclosed safety materials carefully! Preparation .............................. 1-4 Assembly ................................. 5-9 Installation ............................ 10-19 Install the Door Control ............. 20-21 Install the Protector System® ...... 22-25 Power .................................. 26-27 Adjustments .......................... 28-30 Operation.....................
Preparation Safety Symbol and Signal Word Review Check the Door This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual. When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them.
Preparation Additional Items You May Need: Tools Needed Survey your garage area to see if you will need any of the following items: n (2) 2X4 PIECES OF WOOD May be used to fasten the header bracket to the structural supports. Also used to position the garage door opener during installation and for testing the safety reversing sensors. n SUPPORT BRACKET AND FASTENING HARDWARE Must be used if you have a finished ceiling in your garage.
Preparation Carton Inventory Your garage door opener is packaged in one carton which contains the motor unit and all parts illustrated below. Accessories vary depending on the garage door opener model purchased. Depending on your model, other accessories may be included with your garage door opener. Instructions for these accessories will be attached to the accessory and are not included in this manual. Save the carton and packing material until the installation and adjustment is complete.
Preparation Hardware ASSEMBLY Bolt 1/4"-20x1-3/4" INSTALLATION Self-Threading Screw 1/4"-14x5/8" (2) Bolt Clevis Pin 5/16"x1-1/2" Lag Screw 5/16"-9x1-5/8" (4) Threaded Shaft with Spring Trolley Nut Carriage Bolt 1/4"-20x1/2" (2) Hex Bolt 5/16"-18x7/8" (4) Wing Nut 1/4"-20 (2) Lock Washer 5/16"-18 (5) Nut 5/16"-18 (6) Master Link Clevis Pin 5/16"x1" Clevis Pin 5/16"x1-1/4" Ring Fastener (3) Lock Nut 1/4"-20 Hex Screw #8x3/8" (2) (packed with the sprocket cover) DOOR CONTROL Screw 6-32x1" (2)
Assembly To garage door opener (TO MOTOR UNIT) STEP 1 Assemble the rail and install the trolley “U” Bracket To prevent INJURY from pinching, keep hands and fingers away from the joints while assembling the rail. Outer Trolley To avoid installation difficulties, do not run the garage door opener until instructed to do so. The front rail has a cut out “window” at the door end. The rail tab MUST be on top of the rail when assembled. 1.
Assembly STEP 2 Fasten the rail to the motor unit Bolts (Mounted in the garage door opener) “U” Bracket Bolt 1/4"-20x1-3/4" To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener. Cover Protection Bolt Hole 1. Insert a 1/4"-20x1-3/4" bolt into the cover protection bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. DO NOT overtighten. 2. Remove the bolts from the top of the motor unit. 3.
Assembly CORRECT STEP 3 Install the idler pulley Rail Tab 1. Lay the belt beside the rail, as shown. Grasp the end with the hooked trolley connector and pass approximately 12" (30 cm) of belt through the window. Keep the ribbed side toward the rail, and allow it to hang until Assembly Step 4. 2. Remove the tape from the idler pulley. The inside center should be pre-greased. If dry, regrease to ensure proper operation. 3. Place the idler pulley into the window as shown. 4.
Assembly STEP 4 Install the belt Figure 1 1. Pull the belt around the idler pulley and toward the trolley. The ribbed side must contact the pulley. 2. Hook the trolley connector into the retaining slot on the trolley as shown (Figure 1). 3. With the trolley against the screwdriver, dispense the remainder of the belt along the rail length toward the motor unit and around the sprocket (Figure 2). The sprocket teeth must engage the belt. 4. Check to make sure the belt is not twisted.
Assembly STEP 5 Tighten the belt STEP 6 Install the sprocket cover 1. By hand, thread the spring trolley nut on the threaded shaft until it is finger tight against the trolley. Do not use any tools. Remove the screwdriver. 2. Insert a flathead screwdriver tip into one of the nut ring slots and brace it firmly against the trolley. 3. Tighten the spring trolley nut with an adjustable wrench or a 7/16" open end wrench about a quarter turn until the spring releases and snaps the nut ring against the trolley.
Installation IMPORTANT INSTALLATION INSTRUCTIONS To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Install garage door opener ONLY on properly balanced and lubricated garage door. An improperly balanced door may NOT reverse when required and could result in SEVERE INJURY or DEATH. 3. ALL repairs to cables, spring assemblies and other hardware MUST be made by a trained door systems technician BEFORE installing opener. 4.
Installation STEP 1 Determine the header bracket location Header Wall 2x4 To prevent possible SERIOUS INJURY or DEATH: l Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise garage door might NOT reverse when required. DO NOT install header bracket over drywall. l Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
Installation STEP 2 Install the header bracket OPTION B CEILING INSTALLATION 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. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not provided). 1. Extend the vertical centerline onto the ceiling as shown. 2. Center the bracket on the vertical mark, no more than 6" (15 cm) from the wall.
Installation STEP 3 Attach the rail to the header bracket STEP 4 Position the garage door opener 1. Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way, you will need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. 2. Position the rail bracket against the header bracket. 3. Align the bracket holes and join with a clevis pin as shown. 4.
Installation STEP 5 Hang the garage door opener 1. On finished ceilings, use the lag screws to attach a support bracket (not provided) to the structural supports before installing the garage door opener. 2. Make sure the garage door opener is aligned with the header bracket. Measure the distance from each side of the garage door opener to the support bracket. 3. Cut both pieces of the hanging bracket to required lengths. 4.
Installation STEP 6 Install the light bulbs STEP 7 Attach the emergency release rope and handle To prevent possible OVERHEATING of the endpanel or light socket: l DO NOT use short neck or specialty light bulbs. l DO NOT use halogen bulbs. Use ONLY incandescent. To prevent damage to the opener: l DO NOT use bulbs larger than 100W. l ONLY use A19 size bulbs.
Installation Metal or light weight doors using a vertical angle iron brace between the door panel support and the door bracket: l Drill 3/16" fastening holes. Secure the door bracket using the two 1/4"-14x5/8" self threading screws. (Figure 1) l Alternately, use two 5/16"-18x2" bolts, lock washers and nuts (not provided). (Figure 2) Metal, insulated or light weight factory reinforced doors: l Drill 3/16" fastening holes. Secure the door bracket using the self-threading screws.
Installation Header Wall STEP 8 Install the door bracket (continued) OPTION B ONE-PIECE DOORS 2x4 Support (Finished Ceiling) Header Bracket 1. Center the door bracket on the top of the door, in line with the header bracket as shown. 2. Mark either the left and right, or the top and bottom holes. Metal Doors: l Drill 3/16" pilot holes and fasten the bracket with the self-threading screws provided.
Installation STEP 9 Connect the door arm to the trolley INCORRECT CORRECT Installation will vary according to the garage door type. Follow the instructions which apply to your door. Straight Door Arm (Groove facing out) OPTION A SECTIONAL DOORS IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm. 1. Close the door. Disconnect the trolley by pulling the emergency release handle. 2. Attach the straight door arm to the outer trolley using the clevis pin.
Installation HARDWARE STEP 9 Connect the door arm to the trolley (continued) OPTION B ONE-PIECE DOORS 1. Assemble the door arm, Figure 1: IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm. l Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). l 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. 2.
Installation Connect the door control wires: 1. Strip 7/16" (11 mm) of insulation from one end of bell wire and connect to the two screw terminals on back of door control by color: white wire to WHT (1) and white/red wire to the RED (2). If your garage is pre-wired for the door control, choose any two wires to connect, note which wires are used so the correct wires are connected to the garage door opener in a later step.
Installation STEP 11 Wire the door control to the garage door opener STEP 12 Attach the warning labels 1. Attach the entrapment warning label on the wall near the door control with tacks or staples. 2. Attach the manual release/safety reverse test label in a visible location on the inside of the garage door. HARDWARE Insulated Staple (Not Shown) 1. Run the white and red/white wire from the door control to the garage door opener.
Installation STEP 13 Install the Protector System® Facing the door from inside the garage HARDWARE Carriage Bolt 1/4"-20x1/2" Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing sensor. To prevent SERIOUS INJURY or DEATH from closing garage door: l Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be disabled. l Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor.
Installation STEP 13 Install the Protector System® (continued) OPTION B WALL INSTALLATION OPTION C FLOOR INSTALLATION Use an extension bracket (not provided) or wood block to raise the sensor bracket if needed. 1. Carefully measure the position of both sensor brackets so they will be the same distance from the wall and unobstructed. 2. Attach the sensor brackets to the floor using concrete anchors (not provided). 3. Slide the carriage bolt into the slot on each sensor. 4.
Installation STEP 14 Wire the Safety Reversing Sensors 1 2 Staple If your garage already has wires installed for the safety reversing sensors, proceed to page 25. HARDWARE Insulated Staple (Not Shown) 7/16" (11 mm) OPTION A INSTALLATION WITHOUT PRE-WIRING 1. Run the wire from both sensors to the garage door opener. Attach the wire to the wall and ceiling with the staples. 2. Strip 7/16 inch (11 mm) of insulation from each set of wires. Separate the wires. Twist the white wires together.
Installation 1 STEP 14 Wire the Safety Reversing Sensors (continued) OPTION B PRE-WIRED INSTALLATION 2 Pre-installed wires Safety reversing sensor wires 1. Cut the end of the safety reversing sensor wire, making sure there is enough wire to reach the pre-installed wires from the wall. 2. Separate the safety reversing sensor wires and strip 7/16 inch (11 mm) of insulation from each end. Choose two of the pre-installed wires and strip 7/16 inch (11 mm) of insulation from each end.
Installation THERE ARE TWO OPTIONS FOR CONNECTING POWER: STEP 15 Connect power OPTION A TYPICAL WIRING 1. Plug in the garage door opener into a grounded outlet. 2. DO NOT run garage door opener at this time. To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: l Be sure power is NOT connected to the opener, and disconnect power to circuit BEFORE removing cover to establish permanent wiring connection.
Installation IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING: 1. Make sure there is power to the garage door opener. 2. Make sure the sensor wire is not shorted/broken. 3. Make sure the sensor has been wired correctly: white wires to white terminal and white/black wires to grey terminal. STEP 16 Aligning the safety reversing sensors The door will not close if the sensors have not been installed and aligned correctly.
Adjustments STEP 1 Adjust the UP and DOWN Travel Limits Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. l Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system. l After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor.
Adjustments STEP 2 Adjust the Force Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. l Too much force on garage door will interfere with proper operation of safety reversal system. l NEVER increase force beyond minimum amount required to close garage door. l NEVER use force adjustments to compensate for a binding or sticking garage door.
Adjustments STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. l Safety reversal system MUST be tested every month. l After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the floor. 1. With the door fully open, place a 1-1/2 inch (3.
Operation IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. ALWAYS keep remote controls out of reach of children. NEVER permit children to operate or play with garage door control push buttons or remote controls. 3. ONLY activate garage door when it can be seen clearly, it is properly adjusted, and there are no obstructions to door travel. 4.
Operation Using your Garage Door Opener Using the Wall-Mounted Door Control Your Security+® opener and hand-held remote control have been factory-set to a matching code which changes with each use, randomly accessing over 100 billion new codes. Your opener will operate with up to eight Security+® remote controls and one Security+® Keyless Entry System. If you purchase a new remote, or if you wish to deactivate any remote, follow the instructions in the Programming section.
Operation To Open the Door Manually Care of Your Opener LIMIT AND FORCE ADJUSTMENTS Weather conditions may cause some minor changes in door operation requiring some re-adjustments, particularly during the first year of operation. Pages 28 and 29 refer to the limit and force adjustments. Only a screwdriver is required. Follow the instructions carefully. Repeat the safety reverse test (Adjustment Step 3, page 30) after any adjustment of limits or force.
Operation 4. My door reverses for no apparent reason after fully closing and touching the floor: Repeat safety reverse test after adjustments to force or travel limits. The need for occasional adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel. l Refer to Adjustment Step 1, Adjust the UP and DOWN Travel Limits. Decrease down travel by turning down limit adjustment screw clockwise. 5.
Operation Diagnostic Chart Diagnostics Located on Motor Unit Bell Wire 3 Flashes Door control or wire shorted. Symptom: LED is not lit on door control. l Inspect door control/wires for a short (staple in wire), replace as needed. l Disconnect wires at door control, touch wires together. If motor unit activates, replace door control. l If motor unit does not activate, disconnect door control wires from motor unit. Momentarily short across red and white terminals with jumper wire.
Operation Programming To Erase the Memory NOTICE: If this Security+® garage door opener is operated with a non-rolling code transmitter, the technical measure in the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented. The owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code transmitter to circumvent that technical measure. ERASE ALL REMOTE CONTROLS AND KEYLESS ENTRIES 1.
Operation To change an existing, known PIN If the existing PIN is known, it may be changed by one person without using a ladder. 1. Press the four buttons for the present PIN, then press and hold the # button. The opener light will blink twice. Release the # button. 2. Press the new 4-digit PIN you have chosen, then press Enter. The motor unit lights will blink once when the PIN has been learned. Test by pressing the new PIN, then press Enter. The door should move.
Operation The Remote Control Battery To prevent possible SERIOUS INJURY or DEATH: l NEVER allow small children near batteries. l If battery is swallowed, immediately notify doctor. To reduce risk of fire, explosion or chemical burn: l Replace ONLY with 3V CR2032 coin batteries. l DO NOT recharge, disassemble, heat above 212°F (100°C) or incinerate. The lithium battery should produce power for up to 3 years. To replace battery, use the visor clip or screwdriver blade to pry open the case as shown.
Accessories 7702CB Outside Quick Release: Required for a garage with NO access door. 8808CB CLLAD 8 Foot (2.4 m) Rail Extension: To allow an 8 foot (2.4 m) door to open fully. 8810CB 10 Foot (3 m) Rail Extension: To allow an 10 foot (3 m) door to open fully. 41A5281 CLLP1 SECURITY✚® 3-Button Remote Control : Includes visor clip. Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor.
Warranty CHAMBERLAIN® FIVE-YEAR LIMITED WARRANTY LIFETIME MOTOR AND BELT LIMITED WARRANTY The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of five-years from the date of purchase [and that the motor and belt is free from defect in materials and/ or workmanship for a period of lifetime from the date of purchase].
Repair Parts Installation Parts Rail Assembly Parts Description Description Part Number 1 Belt 2 Pulley 144C54 3 Master Link 4A1008 4 Rail 5 Trolley Assembly 6 “U” Bracket 2 1 41A5250 41A5665 41C5141-2 Not Shown Wear Pads Hardware Bag Owner’s Manual Curved Door Arm 2 Door Bracket with Clevis Pin and Fastener 3 Emergency Release Rope and Handle 41A2828 4 Header Bracket with Clevis Pin and Fastener 41A5047-3 5 Remote Control Visor Clip 6 Safety Sensor Bracket 7 Safety Sens
Repair Parts Description Garage Door Opener Parts 1 3 2 6 6 17 18 7 16 4 14 8 9 5 15 10 12 (Down) Contact Brown Wire Belt Cap Retainer 2 Gear and Sprocket 3 Line Cord 4 End Panel with light socket 5 Light Socket 4A1344 6 Light Lens 108D79 7 Capacitor 30B532 8 Capacitor Bracket 12A373 9 Terminal Block w/Screws 41A3150 10 Motor 41A4842 11 Cover 41A5525-4 12 Limit Switch Drive and Retainer 13 Limit Switch Assembly 14 Interrupter Cup 41A2822-1 15 RPM Sensor Assemb
114A4252F © 2014, The Chamberlain Group, Inc.
