Instruction/ maintenance manual of the product WD912K Chamberlain
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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.
2 Introduction 2-7 Safety symbol and signal word review ........................2 Preparing your garage door ........................................3 T ools needed ...............................................................3 Planning ............
3 To prevent damage to garage door and opener: •A LW AY S disable locks BEFORE installing and operating the opener . • ONL Y operate garage door opener at 120V , 60 Hz to avoid malfunction and damage.
Safety Reversing Sensor Support bracket & fastening hardware is required. See page 17. — — — — — — — — Header Wall FINISHED CEILING Torsion Spring Extension Spring OR Safety Revers.
Access Door Gap between floor and bottom of door must not exceed 1/4" Safety Reversing Sensor Safety Reversing Sensor CLOSED POSITION Header Bracket Belt Pulley Bracket Door Bracket Straight Door.
6 SECURITY ✚ Multi-Function Remote Control Transmitter (2) 2-Conductor Bell Wire White & White/Red Trolley Header Bracket Belt Curved Door Arm Section Safety Labels and Literature Rail Brace (3).
Hardwar e Inventor y Separate all hardware and group as shown below for the assembly and installation procedures. 7 Lock Washer 5/16" (4) Trolley Clip (1) Lock Nut 1/4"-20x7/16" (12) Nu.
8 ASSEMBL Y STEP 1 Assemble the Rail and Attach the Belt Pulley Bracket To avoid installation difficulties, do not run the garage door opener until instructed to do so. 1. Align the four rail sections on a flat surface exactly as shown . Center sections are interchangeable.
9 ASSEMBL Y STEP 2 Install the T rolley • As a temporary stop, insert a screwdriver into the hole in the front end of the rail. • Slide the trolley assembly along the rail to the screwdriver stop. NOTE: If trolley hits against any nuts on the rail, the bolts and nuts were attached from the wrong side and must be repositioned.
10 ASSEMBL Y STEP 4 Install the Belt and Set the T ension INST ALLING THE BEL T 1. Drop the notched side of the trolley clip into the retaining slot on top of the trolley (Figure 1). 2. Grasp the clip connector at the end of the belt and slip it through the belt pulley bracket from behind, around the pulley and toward the trolley .
ASSEMBL Y STEP 5 Attach the Belt Cap Retainer • Position the belt cap retainer over the motor unit sprocket so the two holes in cap align with the two holes in mounting plate. Attach with 8x3/8" hex screws provided. Y ou have now finished assembling your garage door opener .
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 . SECTIONAL DOOR AND ONE-PIECE DOOR WITH TRACK 1. Close the door and mark the inside vertical centerline of the garage door .
13 Header Wall Vertical Centerline Vertical Centerline of Garage Door 2x4 Unfinished Ceiling 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports ONE-PIECE DOOR WITHOUT TRACK 1. Close the door and mark the inside vertical centerline of your garage door .
14 INST ALLA TION STEP 2 Install the Header Bracket Y ou 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.
15 INST ALLA TION 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.
16 ONE-PIECE DOOR WITHOUT TRACK A 2x4 on its side is convenient for setting an ideal door-to-rail distance. • 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 beneath the rail.
17 INST ALLA TION STEP 5 Hang the Opener T wo 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), attach a sturdy metal bracket to structural supports before installing the opener .
18 L O C K L IG H T Figure 4 REMOVE COVER INST ALLA TION STEP 6 Install the Door Control Locate door control within sight of the door at a minimum height of 5 feet where small children cannot reach, and away from moving parts of the door and door hardware.
19 INST ALLA TION STEP 7 Install the Lights • 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 each socket.
20 INST ALLA TION STEP 9 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. 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.
21 Invisible Light Beam Protection Area Sensor Beam 6" max. above floor Sensor Beam 6" max. above floor Facing the door from inside the garage INST ALLA TION STEP 10 Install The Protector System ® The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.
22 FLOOR MOUNT (RIGHT SIDE) WALL MOUNT (RIGHT SIDE) DOOR TRACK MOUNT (RIGHT SIDE) Indicator light Lens Lip Sensor Bracket Door Track Sensor Bracket Extension Bracket (See Accessories) Lens Indicator l.
23 Carriage bolt 1/4"-20x1/2" Lens Wing nut Figure 4 TROUBLESHOOTING THE SAFETY SENSORS 1. If the sending eye indicator light does not glow steadily after installation, check for: • Electric power to the opener . •A short in the white or white/black wires.
24 INST ALLA TION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the top panel.
25 Header Wall Vertical 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.
26 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 .
27 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.
28 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. To operate the opener , press the Door Control push bar . Run the opener through a complete travel cycle.
29 ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the right 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.
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 every month. • If one control (force or travel limits) is adjusted, the other control may also need adjustment.
OPERA TION 31 IMPORT ANT SAFETY INSTRUCTIONS To reduce the risk of severe injury or death: 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.
To Open the Door Manually The door should be fully closed if possible. Pull down on the emergency release handle and lift the door manually . T o reconnect the door to the opener , press the door control push bar . The lockout feature prevents the trolley from reconnecting automatically .
33 Care of Y our Opener LIMIT AND FORCE ADJUSTMENTS: W eather conditions may cause some minor changes in door operation requiring some readjustments, particularly during the first year of operation. Pages 28 and 29 refer to the limit and force adjustments.
34 Having a Problem? (Continued) 6. The garage door opens and closes by itself: • Be sure that all remote control push buttons are off. • Remove the bell wire from the door control terminals and operate from the remote only .
35 LO C K L I G H T *Multi-Function Remotes If provided with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ multi-function remote or mini-remote can be programmed to operate other Security ✚ garage door openers.
36 1. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold ENTER. 2. While holding the ENTER button, press and hold the LIGHT button on the Multi-Function Door Control.
37 13 9 NOTICE 5 6 10 8 U P C E I L I N G M O U N T O N L Y 7 1 4 3 2 L O C K L IG H T 11 12 2 1 3 3 5 4 5 8 9 10 6 7 Installation Parts REP AIR P ARTS Rail Assembly Parts KEY P ART NO.
Motor Unit Assembly Parts 38 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSY. Grey Wire Yellow Wire (Up) Contact Center Limit Contact Drive Gear 2 4 3 7 1 12 15 7 5 8 9 17 19 18 6 10 11 16 13 14 KEY P ART NO. NO. DESCRIPTION 1 41A4371 Belt cap retainer 2 41A4885-5 Gear and sprocket assy .
39 ACCESSORIES L O C K L IG H T C L O S E D O P E N 3-Button SECURITY ✚ Remote Control: Includes visor clip. SECURITY ✚ Keyless Entry: Enables homeowner to operate garage door opener from outside by entering a password on a specially designed keyboard.
©2003, The Chamberlain Group, Inc. 1 14A2781 All Rights Reserved Printed in Mexico CHAMBERLAIN SER VICE IS ON CALL OUR LARGE SERVICE ORGANIZA TION SP ANS AMERICA INST ALLA TION AND SERVICE INFORMA TION IS AS NEAR AS YOUR TELEPHONE SEVEN DA YS A WEEK.
An important point after buying a device Chamberlain WD912K (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Chamberlain WD912K yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Chamberlain WD912K - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Chamberlain WD912K you will learn all the available features of the product, as well as information on its operation. The information that you get Chamberlain WD912K will certainly help you make a decision on the purchase.
If you already are a holder of Chamberlain WD912K, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Chamberlain WD912K.
However, one of the most important roles played by the user manual is to help in solving problems with Chamberlain WD912K. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Chamberlain WD912K along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
