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The Chamberlain Group, Inc.
845 Larch Avenue
®
Elmhurst, Illinois 60126-1196
www.chamberlain.com
®
GARAGE DOOR OPENER
Model PD300DM � 1/2 HP
For Residential Use Only
Owner’s Manual
■ 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
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TABLE OF CONTENTS Introduction 2-7Adjustment 27-29 Safety symbol and signal word review ....................... 2 Adjust the travel limits .............................................. 27 Preparing your garage door ....................................... 3 Adjust the force ........................................................ 28 Tools needed .............................................................. 3 Test the safety reversal system ................................ 29 ® Planning .......
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1 Preparing your garage door Before you begin: To prevent possible SERIOUS INJURY or DEATH: � Disable locks. • ALWAYS call a trained door systems technician if � Remove any ropes connected to garage door. garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when � Complete the f ollowing test to make sure your required. garage door is balanced and is not sticking or • NEVER try to loosen, move or adjust garage door, door binding: springs, cables,
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— — — — — — — — Planning � Do you have an access door in addition to the Identify the type and height of your garage door. Survey your garage area to see if any of the garage door? If not, Model 7702CB Emergency Key Release is required. See Accessories page. conditions below apply to your installation. Additional materials may be required. You may find it helpful to � Look at the garage door where it meets the floor. refer back to this page and the accompanying Any gap be
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Planning (Continued) ONE-PIECE DOOR INSTALLATIONS Without a properly working safety reversal system, persons (particularly small children) could be � Generally, a one-piece door does not require SERIOUSLY INJURED or KILLED by a closing garage reinforcement. If your door is lightweight, refer to door. the information relating to sectional doors in • The gap between the bottom of the garage door and Installation Step 11. the floor MUST NOT exceed 1/4" (6 mm). Otherwise, � Depending on y
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Carton Inventory Your garage door opener is packaged in one carton packing material. PARTS MAY BE STUCK IN THE which contains the motor unit and all parts illustrated FOAM. Hardware for assembly and installation is below. Accessories will depend on the model shown on the next page. Save the carton and packing purchased. If anything is missing, carefully check the material until installation and adjustment is complete. Idler Pulley ® SECURITY✚ Lighted Door Control Button Single-Button Remote C
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Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Nut Lock Nut Lock Washer 3/8" (1) 1/4"-20 (2) 3/8" (1) Bolt 1/4"-20x1-3/4 (2) Master Link (2) Idler Bolt (1) Trolley Threaded Shaft (1) INSTALLATION HARDWARE Carriage Bolt Wing Nut Ring Nut 5/16"-18 (8) Handle 1/4"-20x1/2" (2) 1/4"-20 (2) Fastener (3) Lag Screw Hex Bolt Lock Washer 5/16" (7) Insulated 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4) Staples (30)
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ASSEMBLY STEP 1 Assemble the Rail & Install the To prevent INJURY from pinching, keep hands and Trolley fingers away from the joints while assembling the rail. 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 3. Place the motor unit on packing material to protect (see illustration). The hole above this window is the cover, and rest the back end of the rail on top. larger on the top of the
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ASSEMBLY STEP 2 Fasten the Rail to the Motor Unit To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of � Insert a 1/4"-20x1-3/4 bolt into the cover protection the opener. bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. Do NOT overtighten. Hex Screws 8-32x7/16" � Remove the two bolts from the top of the motor unit. � Place the “U” bracket, flat side down onto the Chain Spreader motor unit and a
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ASSEMBLY STEP 4 Install the Chain/Cable To avoid possible SERIOUS INJURY to fingers from 1. Pull the cable around the idler pulley and toward moving garage door opener: the trolley. • ALWAYS keep hand clear of sprocket while operating opener. 2. Connect the cable to the retaining slot on the • Securely attach chain spreader BEFORE operating. trolley, as shown (Figure 1): � From below, push pins of master link bar up Dispensing Carton through cable link and trolley slot. Leave Chain and
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ASSEMBLY STEP 5 Tighten the Chain Figure 1 Trolley � Spin the inner nut and lock washer down the Outer Lock Threaded Nut Washer Shaft trolley threaded shaft, away from the trolley. To Tighten Outer Nut � To tighten the chain, turn outer nut in the direction shown (Figure 1). Inner Nut � When the chain is approximately 1/4" (6 mm) above the base of the rail at its midpoint, re-tighten To Tighten Inner Nut the inner nut to secure the adjustment. Sprocket noise can result if chain is too loo
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INSTALLATION STEP 1 Unfinished Determine the Header Bracket Ceiling OPTIONAL Location CEILING MOUNT FOR HEADER BRACKET Header Wall 2x4 To prevent possible SERIOUS INJURY or DEATH: Vertical Centerline of Garage Door • Header bracket MUST be RIGIDLY fastened to 2x4 structural support on header wall or ceiling, otherwise Structural Supports garage door might not reverse when required. DO NOT install header bracket over drywall. • Concrete anchors MUST be used if mounting header bracket or 2x4
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INSTALLATION STEP 2 Wall Mount Install the Header Bracket You can attach the header bracket either to the wall UP 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). Optional WALL HEADER BRACKET INSTALLATION Mounting Holes � Center the bracket on the vertical centerline with the bottom edge of the bracket on
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INSTALLATION STEP 3 Attach the Rail to the Header Bracket NOTE: (Optional) With some existing installations, 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. NOTE: If the door spring is in the way you’ll need help. Have someone hold the opener securely
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INSTALLATION STEP 4 Position the Opener To prevent damage to garage door, rest garage door Follow instructions which apply to your door type as opener rail on 2x4 placed on top section of door. illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to-rail distance. Rail � Remove foam packaging. � Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. � Open the door all the way and
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INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling Three representative installations are shown. Yours garage door opener, fasten it SECURELY to structural supports of the garage. Concrete anchors MUST be used may be different. Hanging brackets should be angled if installing any brackets into masonry. (Figure 1) to provide rigid support. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to structural supports before installing the
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INSTALLATION STEP 6 Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of door at a minimum height of 5 feet (1.5 m) where small children cannot • Be sure power is not connected BEFORE installing door reach, and away from moving parts of door and door control. hardware. • Connect ONLY to 24 VOLT low voltage wires. 1. Strip 7/16" (11 mm) of insulation from one end of To prevent possible SERIOUS INJURY or DEATH from
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NOTICE INSTALLATION STEP 7 Install the Light To prevent possible OVERHEATING of the endpanel or light socket: � Press the release tabs on both sides of lens. Gently rotate lens back and downward until the • DO NOT use short neck or specialty light bulbs. lens hinge is in the fully open position. Do not • DO NOT use halogen bulbs. Use ONLY incandescent. remove the lens. To prevent damage to the opener: � Install up to a 100 watt maximum light bulb in the • DO NOT use bulbs larger than 100
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INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: To avoid installation difficulties, do not run the opener at this time. • Be sure power is not connected to the opener, and disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection. opener has a grounding type plug with a third • Garage door installation and wiring MUST be in grounding
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INSTALLATION STEP 10 ® Install The Protector System Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected and aligned correctly before the garage door To prevent SERIOUS INJURY or DEATH from a closing opener will move in the down direction. garage door: • Correctly connect and align the safety reversing IMPORTANT INFORMATION ABOUT sensor. This required safety device MUST NOT be THE SAFETY REVER
