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Chamberlain PD300D - page 1
The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1 196 www .chamberlain.com GARAGE DOOR OPENER Model PD300D • 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 CLOS ...
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Chamberlain PD300D - page 2
2 T ABLE OF CONTENTS 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. The hazard may come from something mechanical or from electric shock. Read the warnings carefully . When you see this Signal Wor ...
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Chamberlain PD300D - page 3
3 T o prevent damage to garage door and opener: • AL W A YS disable locks BEFORE installing and operating the opener . • ONL Y operate garage door opener at 120V , 60 Hz to avoid malfunction and damage. T o prevent possible SERIOUS INJUR Y or DEA TH: • AL W A YS call a trained door systems technician if garage door binds, sticks, or is out of ...
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Chamberlain PD300D - page 4
4 Safety Reversing Sensor Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 23 for details. — — — — — — — — Header Wall Safety Reversing Sensor Gap between floor and bottom of door must not exceed 1/4" (6 mm). Extension Spring Torsi ...
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Chamberlain PD300D - page 5
5 Access Door Safety Reversing Sensor Safety Reversing Sensor Gap between floor and bottom of door must not exceed 1/4" (6 mm). Door Bracket Straight Door Arm Garage Door CLOSED POSITION Header Bracket Curved Door Arm Chain Emergency Release Rope & Handle Cable Rail T rolley Stop Bolt Header W all Planning (Continued) ONE-PIECE DOOR INST A ...
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Chamberlain PD300D - page 6
6 2-Conductor Bell Wire White & White/Red Chain and Cable in Dispensing Carton Curved Door Arm Section Straight Door Arm Section Safety Labels and Literature Hanging Brackets Door Bracket (2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached Safety Sensor Bracket (2) SECURIT ...
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Chamberlain PD300D - page 7
7 Wing Nut 1/4"-20 (2) Handle Nut 5/16"-18 (8) Ring Fastener (3) Spacer (2) Carriage Bolt 1/4"-20x1/2" (2) Insulated Staples (30) Rope Lock W asher 5/16" (7) Lag Screw 5/16"-9x1-5/8" (2) Hex Bolt 5/16"-18x7/8" (4) Master Link (2) Idler Bolt (1) Nut 3/8" (1) T rolley Threaded Shaft (1) Lock W asher 3 ...
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Chamberlain PD300D - page 8
FRONT RAIL (TOP) KEEP LARGER HOLE ON TOP 8 ASSEMBL Y STEP 1 Assemble the Rail & Install the T rolley T o avoid installation difficulties, do not run the garage door opener until instructed to do so. Front Rail (T O DOOR) Window Cut-Out Screwdriver Idler Pulley Hole T abs Back Rails (T O MOT OR UNIT) T rolley T apered End T apered End Inner T ro ...
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Chamberlain PD300D - page 9
9 T o avoid SERIOUS damage to garage door opener , use ONL Y those bolts/fasteners mounted in the top of the opener . ASSEMBL Y STEP 2 Fasten the Rail to the Motor Unit • Insert a 1/4"-20x1-3/4 bolt into the cover protection bolt hole on the back end of the rail as shown. T ighten securely with a 1/4"-20 lock nut. Do NOT overtighten. ? ...
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Chamberlain PD300D - page 10
10 T o avoid possible SERIOUS INJURY to fingers from moving garage door opener: • AL WA YS keep hand clear of sprocket while operating opener . • Securely attach chain spreader BEFORE operating. Leave Chain and Cable Inside Dispensing Carton to Prevent Kinking. Dispensing Carton Keep Chain and Cable T aut When Dispensing WARN ING CAUTION WARN I ...
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Chamberlain PD300D - page 11
11 INST ALLA TION ASSEMBL Y STEP 5 Tighten the Chain • Spin the inner nut and lock washer down the trolley threaded shaft, away from the trolley . • T o tighten the chain, turn outer nut in the direction shown (Figure 1). • When the chain is approximately 1/4" (6 mm) above the base of the rail at its midpoint, re-tighten the inner nut to ...
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Chamberlain PD300D - page 12
12 INST ALLA TION STEP 1 Determine the Header Bracket Location Installation procedures vary according to garage door types. Follow the instructions which apply to your door . 1. Close the door and mark the inside vertical centerline of the garage door . 2. Extend the line onto the header wall above the door . Y ou can fasten the header bracket with ...
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Chamberlain PD300D - page 13
13 Lag Screws 5/16"x9x1-5/8" – Finished Ceiling – Door Spring Header Wall UP Ceiling Mounting Holes 6" (15 cm) Maximum Header Bracket Vertical Centerline of Garage Door Garage Door Vertical Centerline of Garage Door INST ALLA TION STEP 2 Install the Header Bracket Y ou can attach the header bracket either to the wall above the ga ...
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Chamberlain PD300D - page 14
14 INST ALLA TION 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 ...
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Chamberlain PD300D - page 15
15 ONE-PIECE DOOR WITHOUT TRA CK A 2x4 on its side is convenient for setting an ideal door-to-rail distance. • Remove foam packaging. • Raise the opener onto a stepladder . Y ou will need help at this point if the ladder is not tall enough. • Open the door all the way and place a 2x4 on its side on the top section of the door beneath the rail ...
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Chamberlain PD300D - page 16
16 INST ALLA TION STEP 5 Hang the Opener Three representative installations are shown. Y ours may be different. Hanging brackets should be angled (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 opener . This bracket and fastening hardware a ...
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Chamberlain PD300D - page 17
17 T o prevent possible SERIOUS INJURY or DEA TH from electrocution: • Be sure power is not connected BEFORE installing door control. • Connect ONL Y to 24 VOL T low voltage wires. T o prevent possible SERIOUS INJURY or DEA TH from a closing garage door: • Install door control within sight of garage door , out of reach of children at a minimu ...
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Chamberlain PD300D - page 18
18 INST ALLA TION STEP 7 Install the Light • Press the release tabs on both sides of lens. Gently rotate lens back and downward until the lens hinge is in the fully open position. Do not remove the lens. • Install up to a 100 watt maximum light bulb in the socket. Light bulb size should be A19, standard neck only . The light will turn ON and re ...
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Chamberlain PD300D - page 19
19 INST ALLA TION STEP 9 Electrical Requirements T o avoid installation difficulties, do not run the opener at this time. T o 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. If the plug doesn't fit into the outlet you have, co ...
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Chamberlain PD300D - page 20
20 Invisible Light Beam Protection Area Safety Reversing Sensor 6" (15 cm) max. above floor Safety Reversing Sensor 6" (15 cm) max. above floor Facing the door from inside the garage INST ALLA TION STEP 10 Install The Protector System ® The safety rever sing sensor must be connected and aligned correctly bef ore the garage door opener wi ...
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Chamberlain PD300D - page 21
21 DOOR TRA CK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Sensor Bracket Door T rack FLOOR MOUNT (RIGHT SIDE) W ALL MOUNT (RIGHT SIDE) Indicator Light Sensor Bracket Lens Extension Bracket (See Accessories) Inside G arage W all (Provided with Extension Bracket) (Provided with Extension Bracket) Figure 1 Figure 2 Figure 3 Figure 4 W ALL MOUNT (RIGH ...
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Chamberlain PD300D - page 22
22 Carriage Bolt 1/4"-20x1/2" Lens Wing Nut 1/4"-20 Figure 5 MOUNTING AND WIRING THE SAFETY REVERSING 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 ...
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Chamberlain PD300D - page 23
23 Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of door bracket. Contact your door manufacturer for reinforcement kit. WARN ING CAUTION WARN ING WARN ING INST ALLA TION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following p ...
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Chamberlain PD300D - page 24
24 Header W all V ertical Centerline of Garage Door Finished Ceiling Optional Placement of Door Bracket Header Bracket Door Bracket 2x4 Support For a door with no exposed framing, or for the optional installation, use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket. MET AL DOOR T op of Door (Inside Garage) Door Bracket Optio ...
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Chamberlain PD300D - page 25
25 INST ALLA TION STEP 12 Connect Door Arm to T rolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONL Y • 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 t ...
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Chamberlain PD300D - page 26
26 ALL ONE-PIECE DOORS 1. Assemble the door arm, Figure 4: • 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 . 2. Adj ...
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Chamberlain PD300D - page 27
27 ADJUSTMENT STEP 1 Adjust the UP and DOWN T ravel Limits Limit adjustment settings regulate the points at which the door will stop when moving up or down. T o operate the opener , press the Door Control push bar . Run the opener through a complete travel cycle. • Does the door open and close completely? • Does the door stay closed and not rev ...
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Chamberlain PD300D - page 28
28 ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the back panel of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door . If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction. Weath ...
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Chamberlain PD300D - page 29
29 Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSL Y INJURED or KILLED by a closing garage door . • Safety reversal system MUST be tested ever y month. • If one control (force or travel limits) is adjusted, the other control may also need adjustment. • After ANY adjustments are made ...
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Chamberlain PD300D - page 30
30 OPERA TION Using Y our Garage Door Opener Y our 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. Y our opener will operate with up to eight Security ✚ ® remote controls and one Security ✚ ® Keyless Entry System. If you pu ...
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Chamberlain PD300D - page 31
31 T o Open the Door Manually DISCONNECT THE TROLLEY : The door should be fully closed if possible. Pull down on the emergency release handle (so that the trolley release arm snaps into a vertical position) and lift the door manually . The loc kout f eature prevents the trolley from reconnecting automatically , and the door can be raised and lowere ...
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Chamberlain PD300D - page 32
32 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 27 and 28 refer to the limit and force adjustments. Only a screwdriver is required. Follow the instructions carefully . Repeat the safety rever se ...
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Chamberlain PD300D - page 33
33 HA VING A PROBLEM? (TROUBLESHOOTING) 1. My door will not close and the light bulbs b link on m y motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. • V erify the safety sensors are properly installed, aligned and free of any obstructions. Refer to Insta ...
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Chamberlain PD300D - page 34
34 Installed Safety Reversing Sensor Safety Reversing Sensor Bell Wire Diagnostics Located On Motor Unit LED or Diagnostic LED "Learn" Button Y our garage door opener is programmed with self-diagnostic capabilities. The “Lear n” button/diagnostic LED will flash a number of times then pause signifying it has f ound a potential issue. C ...
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Chamberlain PD300D - page 35
*3-Button Remotes If provided with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ ® 3-Button remote or compact remote can be programmed to operate other Security ✚ ® garage door openers. T o Erase All Codes From Motor Unit Memory T o deactivate any unwanted remote, first er ...
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Chamberlain PD300D - page 36
36 1. Press and release the “learn” button on motor unit. The learn indicator light will glow steadily for 30 seconds. 2. Within 30 seconds, enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold the ENTER button. 3. Release the button when the motor unit lights blink. It has learned the code. ...
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Chamberlain PD300D - page 37
7 9 10 11 NOTICE 5 6 8 1 4 12 13 3 2 3 1 5 4 2 6 Installation Parts 37 REP AIR P ARTS Rail Assembly Parts KEY P ART NO . NO . DESCRIPTION 1 4A1008 Master link kit 2 41C5141-1 Complete trolley assembly 3 41A5665-2 Complete rail 4 144C56 Idler pulley 5 41A5807 Chain and cable 6 12D598-1 “U” bracket NO T SHO WN 183A163 Wear pads KEY P ART NO . NO ...
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Chamberlain PD300D - page 38
Motor Unit Assembly Parts 38 2 10 8 13 14 15 19 4 5 3 9 16 12 18 11 17 1 6 7 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSEMBLY Grey Wire Yellow Wire (Up) Contact Center Limit Contact Drive Gear KEY P ART NO . NO . DESCRIPTION 1 41A5615 Chain Spreader 2 41C4220A Gear and sprocket assembly . Complete with: Spring washer , thrust washer , retainin ...
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Chamberlain PD300D - page 39
39 ACCESSORIES LOCK LIGHT C L O S E D O P E N L O C K L IG H T 3-Button SECURITY ✚ ® Remote Control: Includes visor clip. SECURITY ✚ ® Ke yless Entr y: Enables homeowner to operate garage door opener from outside by entering a password on a specially designed keyboard. Also can add a temporary password for visitors or service persons. This te ...
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Chamberlain PD300D - page 40
© 2007, The Chamberlain Group, Inc. 1 14A3437 All Rights Reserved CHAMBERLAIN SER VICE IS ON CALL OUR LARGE SER VICE ORGANIZA TION SP ANS AMERICA INST ALLA TION AND SER VICE INFORMA TION IS AS NEAR AS Y OUR TELEPHONE. SIMPL Y DIAL OUR T OLL FREE NUMBER: 1-800-528-9131 www .chamberlain-diy .com For prof essional installation, parts and service, con ...
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