Chamberlain WD912K User Manual

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 number label is located on the left side panel of your opener.

The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.chamberlaingroup.com

GARAGE DOOR OPENER

Model WD912K 1/2 HP

For Residential Use Only

Introduction 2-7

Safety symbol and signal word review ........................2

Preparing your garage door........................................3

Tools needed ...............................................................3

Planning ..................................................................4-5

Carton inventory..........................................................6

Hardware inventory.....................................................7

Assembly 8-11

Assemble the rail and attach the belt pulley bracket..8

Install the trolley..........................................................9

Fasten the rail to the motor unit..................................9

Install the belt and set the tension............................10

Attach the belt cap retainer .......................................11

Installation 11-27

Installation safety instructions....................................11

Determine the header bracket location ................12-13

Install the header bracket..........................................14

Attach the rail to the header bracket .........................15

Position the opener...................................................16

Hang the opener .......................................................17

Install the door control...............................................18

Install the light bulbs..................................................19

Attach the emergency release rope and handle.......19

Electrical requirements ..............................................20

Install The Protector System®..............................21-23

Fasten the door bracket.......................................24-25

Connect the door arm to the trolley.....................26-27

Adjustment 28-30

Adjust the travel limits...............................................28

Adjust the force.........................................................29

Test the safety reversal system.................................30

Test The Protector System®......................................30

Operation 31-34

Operation safety instructions.....................................31

Using your garage door opener................................31

Using the wall-mounted door control ........................32

To open the door manually........................................32

Care of your garage door opener..............................33

Having a problem? ...............................................33-34

Programming 35-36

To add a hand-held remote control...........................35

To erase all codes.....................................................35

Multi-function remotes...............................................35

To add or change a Keyless Entry PIN.....................36

Repair Parts 37-38

Rail assembly parts...................................................37

Installation parts........................................................37

Motor unit assembly parts.........................................38

Accessories 39 Repair Parts and Service 40 Warranty 40

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 Word on the following pages, it will alert you to the possibility of damage to your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany it. Read them carefully.

INTRODUCTION

Safety Symbol and Signal Word Review

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.

Mechanical

Electrical

WARNING

CAUTION

To prevent damage to garage door and opener:

•ALWAYS disable locks BEFORE installing and operating the opener.

• ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage.

To prevent possible SERIOUS INJURY OR DEATH:

•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when required.

• NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, all of which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement.

Preparing your garage door

Before you begin:

• Disable locks.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your garage door is balanced and is not sticking or binding:

1. Lift the door about halfway as shown. Release

the door. If balanced, it should stay in place, supported entirely by its springs.

2. Raise and lower the door to see if there is any

binding or sticking.

If your door binds, sticks, or is out of balance, call a trained door systems technician.

Tools needed

During assembly, installation and adjustment of the opener, instructions will call for hand tools as illustrated below.

WARNING

Sectional Door

One-Piece Door

WARNING

CAUTION

Carpenter's Level

Drill

Tape Measure

3/16", 5/16" and 5/32" Drill Bits

Pencil

Hack Saw

Wire Cutters

Claw Hammer

Pliers

Stepladder

1/2" and 7/16" Sockets and Wrench

Screwdriver

Adjustable End Wrench

SECTIONAL DOOR INSTALLATION

Planning

Identify the type and height of your garage door. Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener.

Depending on your requirements, there are several installation steps which may call for materials or hardware not included in the carton.

• Installation Step 1 – Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.

• Installation Step 5 – Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware may be required.

• Installation Step 10 – Depending upon garage construction, extension brackets or wood blocks may be needed to install sensors.

• Installation Step 10 – Alternate floor mounting of the safety reversing sensor will require hardware not provided.

• Do you have an access door in addition to the garage door? If not, Model 7702CB Outside Quick Release is required. See Accessories page.

• Look at the garage door where it meets the floor. Any gap between the floor and the bottom of the door must not exceed 1/4". Otherwise, the safety reversal system may not work properly. See Adjustment Step 3. Floor or door should be repaired.

SECTIONAL DOOR INSTALLATIONS

• Do you have a steel, aluminum, fiberglass or glass panel door? If so, horizontal and vertical reinforcement is required (Installation Step 11).

• The opener should be installed above the center of the door. If there is a torsion spring or center bearing plate in the way of the header bracket, it may be installed within 4 feet to the left or right of the door center. See Installation Steps 1 and 11.

• If your door is more than 7 feet high, see rail extension kits listed on Accessories page.

Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 24 for details.

Header Wall

— — — — — — — —

Door Center

Gap between floor

Safety Reversing Sensor

and bottom of door must not exceed 1/4"

Torsion Spring

Safety Reversing Sensor

Wallmounted Door Control

Extension Spring

Access Door

FINISHED CEILING

Support bracket & fastening hardware is required. See page 17.

Header Wall

Garage Door

Header Bracket

Door Bracket

Belt Pulley Bracket

Garage Door Spring

Straight Door Arm

Curved Door Arm

Motor unit

CLOSED POSITION

Trolley

Emergency Release Rope & Handle

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 Arm

Curved Door Arm

Trolley

Emergency Release Rope & Handle

Rail

Garage Door

Belt Header Wall

Planning (Continued)

ONE-PIECE DOOR INSTALLATIONS

• Generally, a one-piece door does not require reinforcement. If your door is lightweight, refer to the information relating to sectional doors in Installation Step 11.

• Depending on your door’s construction, you may need additional mounting hardware for the door bracket (Step 11).

ONE-PIECE DOOR WITHOUT TRACK

ONE-PIECE DOOR WITH TRACK

Without a properly working safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

• The gap between the bottom of the garage door and the floor MUST NOT exceed 1/4". Otherwise, the safety reversal system may not work properly.

• The floor or the garage door MUST be repaired to eliminate the gap.

WARNING

Header Wall

Safety Reversing Sensor

Gap between floor and bottom of door must not exceed 1/4"

Access Door

FINISHED CEILING Support bracket & fastening hardware is required. See page 17.

Wallmounted Door Control

Header Wall

Motor Unit

Belt Pulley Bracket

Header Bracket

Door Bracket

Garage Door

CLOSED POSITION

Belt

Trolley

Rail

Straight

Curved

Door

Arm

Emergency Release Rope & Handle

Your garage door opener is packaged in one carton which contains the motor unit and the parts illustrated below. Note that accessories will depend on the model purchased. If anything is missing, carefully check the packing material. Parts may be stuck in the

foam. Hardware for assembly and installation is shown on the next page. Save the carton and packing material until installation and adjustment is complete.

Carton Inventory

SECURITY✚ Multi-Function Remote Control Transmitter (2)

SECURITY✚ Keyless Entry

Belt Pulley

Trolley

2-Conductor Bell Wire White & White/Red

Rail Brace (3)

LIGHT

Multi-Function Door Control Panel

Motor Unit with 2 Light lenses

Belt

Safety Sensor Bracket (2)

Rail End Section (2)

Hanging Brackets

Rail Center Section (2)

Belt Cap Retainer

(2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached

Header Bracket

Curved Door

Arm Section

Door Bracket

Straight Door Arm Section

Safety Labels and Literature

Hardware Inventory

Separate all hardware and group as shown below for the assembly and installation procedures.

ASSEMBLY HARDWARE

INSTALLATION HARDWARE

Washered Bolt 5/16"-18x1/2" (2) (mounted in motor unit)

Lag Screw 5/16"-9x1-5/8" (2)

Lag Screw 5/16"-18x1-7/8" (2)

Hex Bolt 5/16"-18x7/8" (4)

Trolley Threaded Shaft (1)

Nut 5/16"-18 (4)

Master Link (2)

Lock Washer 5/16" (4)

NOTICE

Hex Bolt 5/16"-18x7/8" (4)

Screw 6-32x1" (2)

Handle

Fastener (3)

Ring

Carriage Bolt 1/4"-20x1/2" (12)

Lock Nut 1/4"-20x7/16" (12)

Rail Grease

Lock Washer 5/16" (4)

Spring/Trolley Nut (1)

Trolley Clip (1)

Rope

Self-Threading Screw 1/4"-14x5/8"

Clevis Pin 5/16"x2-3/4" (1)

Insulated Staples (30)

Screw 6ABx1-1/4" (2)

Carriage Bolt 1/4"-20x1/2" (2)

Nut 5/16"-18 (4)

Clevis Pin 5/16"x1-1/4" (1)

Wing Nut 1/4"-20 (2)

Dry Wall Anchors (2)

Clevis Pin 5/16"x1" (1)

ASSEMBLY 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. Front and back sections are also interchangeable for ease of assembly.

2.Insert the carriage bolts so the square bolt necks seat in the square holes in the rail sections and pass through the round holes in the rail braces. Make

sure bolt necks are seated in the square holes and rails are aligned before you tighten lock nuts.

Improper assembly can cause jerky trolley operation, noise and/or nuisance door reversals.

3.Assemble lock nuts, ensure alignment and tighten.

NOTE: If rail is not assembled exactly as shown, trolley will not travel smoothly along length of rail or it will hit against nuts.

4.Position the belt pulley bracket on the front end of the rail as shown. Fasten securely with the hardware shown.

NOTE: When tightening the bolts, be sure to keep bracket parallel to the rail. Otherwise, the rail may bow when the opener is operated.

RAIL BACK (TO MOTOR UNIT)

RAIL FRONT (TO DOOR)

Belt pulley bracket attaches to FRONT END of Rail

Rail (End Section)

Rail (Center Section)

Carriage Bolt 1/4"-20x1/2"

Rail (End Section)

Square Carriage Bolt Hole

Lock Nut 1/4"

HARDWARE SHOWN ACTUALSIZE

Carriage Bolts 1/4"-20x1/2"

Hex Bolt 5/16"-18x7/8"

Lock Nut 1/4"-20

Nut 5/16"-18

Lock Washer 5/16"

Belt Pulley Bracket

Lock Washer 5/16"

Hex Bolts 5/16"-18x7/8"

Bracket & Rail Must Be Aligned

Nut 5/16"-18

ASSEMBLY STEP 2

Install the Trolley

• 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. Review Assembly Step 1.

• Insert a 5/16"-18x7/8" hex bolt into the trolley stop hole in the rail as shown. Tighten securely with a 5/16" lock washer and nut. This bolt limits trolley travel in the DOWN direction.

Trolley

Temporary Stop Screwdriver

Hex Bolt 5/16"-18x7/8"

Trolley Stop Hole

Lock Washer 5/16"

Nut 5/16"-18

ASSEMBLY STEP 3

Fasten the Rail to the Motor Unit

• Place the opener on packing material to protect the cover. For convenience, put a support under the belt pulley bracket.

• Remove the two 5/16"-18x1/2" washered bolts mounted in the top of the motor unit.

• Align the holes in the back section of the rail with the holes in the motor unit.

• Fasten the rail with the two washered bolts previously removed. Tighten securely.

Remember to use only these bolts! Any other bolts will cause serious damage to the opener.

• Insert a 5/16"-18x7/8" hex bolt into the cover protection bolt hole in the rail as shown. Tighten securely with a 5/16" lock washer and nut.

NOTE: This bolt prevents trolley over-travel. Keep a 2" minimum between the trolley and this bolt when adjusting travel limits (see page 28).

HARDWARE SHOWN ACTUALSIZE

To avoid serious damage to opener, ONLY use bolts/fasteners mounted in top of motor unit.

WARNING

Rail (Back Section)

CAUTION

Washered Bolts

Cover Protection Bolt Hole

Lock Washer 5/16"

Nut 5/16"-18

Hex Bolt 5/16"-18x7/8"

5/16"-18x1/2"

USE ONLY THIS

TYPE AND SIZE

BOLT

Hex Bolt 5/16"-18x7/8"

Nut 5/16"-18

Lock Washer 5/16"

ASSEMBLY STEP 4

Install the Belt and Set the Tension

INSTALLING THE BELT

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.

3.Fasten the belt clip connector to the trolley clip with a master link:

• Push pins of master link bar

through holes in trolley clip and belt clip connector.

• Push master link cap over pins and

past pin notches.

• Slide clip-on spring over cap and onto

pin notches until both pins are securely locked in place.

4.With the trolley against the screwdriver, dispense the belt along the rail and around the motor unit sprocket. The sprocket teeth must engage the belt (Figure 2).

5.Use the second master link to connect the belt to the flat end of the trolley threaded shaft (Figure 1). Check to make sure the belt is not

twisted.

6.Remove the screwdriver.

SETTING THE TENSION

1.Insert the trolley threaded shaft through the hole in the trolley.

2.Hold the belt at the trolley shaft to avoid twisting as you thread the spring/trolley nut by hand on the shaft until finger tight against the trolley (Figure 3). Do not use any tools.

3.Insert a screwdriver tip into one of the nut ring slots and brace it firmly against the trolley. (Figure 4).

4.Place a 7/16" open end wrench on the square end. Rotate about 1/4 turn until the spring releases and snaps the nut ring against the trolley (Figure 5).

This extends the spring for optimum belt tension.

Belt Pulley

Slip Belt Clip Connector around Pulley Bracket from this direction and attach to trolley clip

Trolley Clip

Master Link Clip-On Spring

Master Link Cap

Trolley Threaded Shaft

Master Link Bar

Pin Notch

Belt Clip Connector

Figure 2

Figure 4

Belt Clip

Connector

Figure 5

Figure 3

To avoid possible SERIOUS INJURY to fingers from moving garage door opener:

•ALWAYS keep hand clear of sprocket while operating opener.

•Securely attach sprocket cover BEFORE operating.

WARNING

Figure 1

WARNING

Motor unit Sprocket

Trolley

Nut Ring Trolley

BEFORE AFTER RELEASE

1" 1-1/4"

Nut Ring

Trolley Threaded Shaft

Spring/Trolley Nut

Square End

Nut Ring

Trolley Threaded Shaft

Nut Ring Slots

ASSEMBLY 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.

You have now finished assembling your garage door opener. Please read the following warnings before proceeding to the installation section.

IMPORTANT INSTALLATION INSTRUCTIONS

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. Disable all locks and remove all ropes connected to garage door BEFORE installing opener to avoid entanglement.

5. Install garage door opener 7 feet or more above floor.

6. Mount emergency release handle 6 feet above floor.

7. NEVER connect garage door opener to power source until instructed to do so.

8. NEVER wear watches, rings or loose clothing while installing or servicing opener. They could be caught in garage door or opener mechanisms.

9. Install wall-mounted garage door control:

• within sight of the garage door

• out of reach of children at minimum height of 5 feet

•away from all moving parts of the door.

10. Place entrapment warning label on wall next to garage door control.

11. Place manual release/safety reverse test label in plain view on inside of garage door.

12. Upon completion of installation, test safety reversal system. Door MUST reverse on contact with a one-inch high object (or a 2x4 laid flat) on the floor.

To reduce the risk of severe injury or death:

HARDWARE SHOWN

ACTUAL SIZE

INSTALLATION

To avoid possible SERIOUS INJURY to fingers from moving garage door opener:

•ALWAYS keep hand clear of sprocket while operating opener.

• Securely attach sprocket cover BEFORE operating.

WARNING

Hex screws 8x3/8"

Belt Cap Retainer

Hex screws #8x3/8"

Motor Unit Sprocket

Mounting Plate

WARNING

INSTALLATION 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.

2.Extend the line onto the header wall above the door.

You can fasten the header bracket within 4 feet of the left or right of the door center only if a torsion spring or center bearing plate is in the way; or you can attach it to the ceiling (see page 14) when clearance is minimal. (It may be mounted on the wall upside down if necessary, to gain approximately 1/2".)

If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports as shown here and on page 13.

3.Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header wall 2" above the high point. This height will provide travel clearance for the top edge of the door.

Proceed to Step 2, page 14.

One-piece

door with

horizontal

track

To prevent possible SERIOUS INJURY or DEATH:

• 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.

• Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.

• NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, all of which are under EXTREME tension.

•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door might not reverse when required.

Sectional door with curved track

WARNING

Header Wall

Ceiling

Vertical Centerline

Finished Ceiling

2x4

Structural Supports

Header Wall

Highest Point of Travel

Door

Track

Header Wall

Highest Point of Travel

Track

+ 28 hidden pages

Chamberlain WD912K User Manual

Owner’s Manual

TABLE OF CONTENTS

Preparing your garage door

Tools needed

Planning

Carton Inventory

Install the Trolley

Install the Belt and Set the Tension

Attach the Belt Cap Retainer

Determine the Header Bracket Location