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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
®
GARAGE DOOR OPENER
Models PD420 • PD420-2 • PD460-2 • PD460-2K
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
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TABLE OF CONTENTS Introduction 2-5 Adjustment 28-30 Safety symbol and signal word review........................2 Adjust the up and down travel limits .........................28 Preparing your garage door ........................................3 Adjust the force .........................................................29 Tools needed...............................................................3 Test the safety reversal system.................................30 ® Planning ....................
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1 Preparing your garage door WARNING WARNING Before you begin: To prevent possible SERIOUS INJURY or DEATH: • Disable locks. • ALWAYS call a trained door systems technician if CAUTION WARNING • 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 following test to make sure your required. garage door is balanced and is not sticking or binding: • NEVER try to loosen, move or adjust garage door, d
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— — — — — — — — Planning Identify the type and height of your garage door. • Do you have an access door in addition to the Survey your garage area to see if any of the garage door? If not, Model 7702CB Emergency conditions below apply to your installation. Additional Key Release is required. See Accessories page. 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 between the
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Planning (Continued) WARNING WARNING 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 CAUTION SERIOUSLY INJURED or KILLED by a closing garage WARNING 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 12. the floor MUST NOT exceed 1/4" (6 mm). Otherw
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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. Model 460-2K Model 420 (1), Model 460 (2) Model 420-2 (2) Model 460-2K (2) Rem
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Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Bolt Hex Bolt Lock Nut 1/4-20x1-3/4" (8) 1/4"-20x5/8" (4) 1/4"-20x7/16 (12) Sprocket Coupling Sleeve INSTALLATION HARDWARE Ring Carriage Bolt Wing Nut Nut 5/16"-18 (6) Handle Fastener (3) 1/4"-20x1/2" (2) 1/4"-20 (2) Lag Screw Hex Bolt Insulated 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4) Lock Washer 5/16" (6) Staples (30) Lag Screw Screw 5/16"-18x1-7/8" (2) 6ABx1-1/4" (2
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WARNING WARNING ASSEMBLY STEP 1 CAUTION WARNING Assemble the Rail To prevent INJURY from pinching, keep hands and 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. 1. Turn the opened rail carton upside down and empty its contents onto a level work surface. 2. Unfold the rails, taking care to avoid kinking the screw rod joint. 3. Rotate the rail sections so that the flat side is down and the sc
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Assemble the Rail (Continued) 4. Beginning with the sprocket end, straighten the two rail sections so that the screw rod is in a straight line at the joint. (Avoid handling the joint, which may have sharp edges.) 5. Carefully slide the pins at the top edge of the rail into the openings on the adjacent rail. It is essential that the rail assembly be on a level surface to achieve proper alignment and to avoid damage to the pins. 6. Insert two 1/4"-20x1-3/4" bolts through the center holes of a bra
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ASSEMBLY STEP 2 HARDWARE SHOWN ACTUAL SIZE Fasten the Rail to the Motor Unit Lock Nut Hex Bolt 1/4"-20 and Install the Trolley 1/4"-20x5/8" NOTE: To aid in assembly and installation, replace the foam packing around the motor unit. Remove it after Installation Step 4. • Working on a level surface, align the rail assembly with the motor unit, as shown. • Slip the coupling over the rail sprocket. • Slide the rail through the motor unit bracket until the coupling fits securely over the motor unit sp
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Lock Nuts ASSEMBLY STEP 3 1/4"-20 Rail Attach the Rail Brackets Brackets • Align rail brackets to end of rail assembly, as shown. • Insert two 1/4"-20x5/8" hex bolts and lock nuts. Tighten securely with a 7/16" socket. Hex Bolts 1/4"-20x5/8 Rail You have now finished assembling your garage door opener. Please read the following warnings before proceeding to the installation section. HARDWARE SHOWN ACTUAL SIZE Lock Nut Hex Bolt 1/4"-20 1/4"-20x5/8" WARNING WARNING INSTALLATION IMPORTANT INSTA
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Unfinished OPTIONAL INSTALLATION STEP 1 Ceiling CEILING Determine the Header Bracket MOUNT FOR Location HEADER BRACKET 2x4 Header Wall WARNING WARNING Vertical Centerline of Garage Door To prevent possible SERIOUS INJURY or DEATH: 2x4 Structural • Header bracket MUST be RIGIDLY fastened to CAUTION Supports WARNING structural support on header wall or ceiling, otherwise garage door might not reverse when required. DO NOT install header bracket over drywall. • Concrete anchors MUST be used if moun
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INSTALLATION STEP 2 Wall Mounting Holes Install the Header Bracket CEILING MOUNT ONLY You can attach the header bracket either to the wall The nail hole is for positioning only. above the garage door, or to the ceiling. Follow the You must use lag screws UP instructions which will work best for your particular to mount the header bracket. requirements. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not provided). Optional Wall Mounting Holes
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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. NOTE: 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 5/16"x2-3/4" as shown. • Insert a ring fastener to secure. Header
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INSTALLATION STEP 4 WARNING WARNING ® 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 CAUTION WARNING • To prevent SERIOUS INJURY or DEATH from a closing and aligned correctly before the garage door garage door: opener will move in the down direction. – Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be IMPORTANT INFOR
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INSTALLING THE BRACKETS Be sure power to the opener is disconnected. DOOR TRACK MOUNT (RIGHT SIDE) Figure 1 Install and align the brackets so the sensors will face each other across the garage door, with the beam no Door higher than 6" (15 cm) above the floor. They may be Track installed in one of three ways, as follows. Lip Garage door track installation (preferred): Indicator Light • Slip the curved arms over the rounded edge of each door track, with the curved arms facing the door. Snap into
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MOUNTING AND WIRING THE SAFETY SENSORS Figure 5 • Slide a 1/4"-20x1/2" carriage bolt head into the slot Wing Nut 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 5. Carriage Bolt • Finger tighten the wing nuts. 1/4"-20x1/2" Lens Recommended Wire Routing 1. Using insulated staples, run the wires from both sensors to the rail at the door header (see Figure 6).
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WARNING WARNING INSTALLATION STEP 5 CAUTION WARNING Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. 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 door-to-rail distance. • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. 2x4 is used
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INSTALLATION STEP 6 WARNING WARNING Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Three representative installations are shown. Yours CAUTION WARNING 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), attach a sturdy metal bracket to structural supports before in
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1 LIGHT LIGHT WARNING WARNING INSTALLATION STEP 7 CAUTION WARNING Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of door at a minimum • Be sure power is not connected BEFORE installing door height of 5 feet (1.5 m) where small children cannot control. reach, and away from moving parts of door and door hardware. The installation surface must be smooth • Connect ONLY to 24 VOLT low voltage wires. and flat. If installing in
