Instructions / Assembly

ManualsBrandsChamberlain ManualsDoors & WindowsHeavy Duty Chain Drive Rail Extension Kit for 10 ft. Garage Doors

Ten-Foot Chain Rail Extension Kit

Model 6610CD

BEFORE YOU BEGIN:

If you have a completely installed garage door opener, the rail/opener

assembly must be taken down.

• The garage door opener support brackets will require repositioning and

the addition of an extra bracket for stability due to increased rail length.

• UP and DOWN travel limits must be readjusted after installation.

CARTON INVENTORY:

Front Rail Section

Additional Rail Section

Support Bracket and Fastening Hardware

Chain Extension Piece

Emergency Release Rope

Master Link

To prevent possible SERIOUS INJURY or DEATH:

• Disconnect ALL electric and battery power BEFORE performing ANY

service or maintenance.

The garage door MUST be in the fully closed position during

installation.

WARNING: This product can expose you to chemicals including

lead, which are known to the State of California to cause

cancer or birth defects or other reproductive harm. For more

information go to www.P65Warnings.ca.gov

IF THIS IS AN EXISTING INSTALLATION:

1. Pull down on the emergency release handle, then disconnect the

trolley from the door arm.

2. Disconnect the rail/opener assembly from the header bracket and

support brackets, and place it on the floor.

3. Remove the outer nut from the trolley shaft and set aside (Figure 3).

Disconnect the chain from the trolley and trolley threaded shaft. Save

the master link assemblies for reinstallation.

NOTE: To disconnect the master link, press on the open end of the clip.

5. Set the chain aside as it will be used to complete the extension kit.

Make sure it does not get twisted.

6. Remove idler pulley assembly and set aside (Figure 4).

7. Disconnect the front rail section and the next rail section by using a

screwdriver tip to pry up the outer tabs on the sides of the rail

(Figure 5). Discard the rail sections.

8. Align the replacement front rail section and additional rail section with

the existing rail making sure the rail tab is facing up. Slide the front rail

and additional rail onto the existing rail; tabs along the side will lock

into place (Figure 6).

IF THIS IS A NEW INSTALLATION:

1. Replace the emergency release rope packaged with your garage door

opener with the longer emergency release rope included in this kit.

2. Use the front rail section and additional rail section included in this

kit in place of the front rail section and one of the center rail sections

packaged with your garage door opener (Figure 1).

3. Connect the chain extension piece to the full chain packaged with

your garage door opener using the master links (Figure 2).

4. Refer to Assembly Step 1 in your owner’s manual to complete the

assembly, installation and adjustment of your garage door opener.

When instructed, connect the trolley threaded shaft to the end of the

chain extension piece.

NOTE: After hanging the opener, add the additional support bracket for

stability. See Add An Additional Support Bracket on reverse side.

Rail Tab

Trolley

Threaded

Shaft

Outer Nut

Replacement

Front Rail Section

Existing Front Rail Section

Next Rail

Section

Idler Pulley

Master Link

Trolley

Replacement

Additional Rail Section

Existing rail

sections

Rail sections packaged with garage door openerFront rail section included

in extension kit

Additional rail section included

in extension kit

Chain extension piece

included in kit

Full chain packaged with

garage door opener

Trolley threaded shaft packaged

with garage door opener

Master linkMaster link

Figure 1

Figure 2

Figure 3 Figure 4 Figure 5

Figure 6

Summary of content (6 pages)

PAGE 1
Ten-Foot Chain Rail Extension Kit Model 6610CD BEFORE YOU BEGIN: If you have a completely installed garage door opener, the rail/opener assembly must be taken down. • The garage door opener support brackets will require repositioning and the addition of an extra bracket for stability due to increased rail length. • UP and DOWN travel limits must be readjusted after installation.
PAGE 2
IF THIS IS AN EXISTING INSTALLATION (CONTINUED): 9. Install idler pulley assembly (Figure 7). 10. As a temporary stop, insert a screwdriver into the hole near the rail tab. Slide the trolley to this point. 11. Use a flathead screwdriver to lift the rail tab until the tab is vertical (90°) (Figure 8). 12. Pull the chain around the idler pulley. Connect the chain to the retaining slot on the trolley with master link, as shown. 13.
PAGE 3
Trousse de rallonge de rail à chaîne de 3,05 m (10 pi) Modèle 6610CD AVANT DE COMMENCER : Si l’ouvre-porte de garage est entièrement installé, l’ensemble de rail/ ouvre-porte doit être démonté. • Les supports de l’ouvre-porte de garage devront être repositionnés et il sera nécessaire d’ajouter un support supplémentaire pour assurer la stabilité du rail plus long. • Les limites de MONTÉE et de DESCENTE doivent être réajustées après l’installation.
PAGE 4
S’IL S’AGIT D’UNE INSTALLATION EXISTANTE (SUITE) : 9. Installer l’ensemble de poulie (Figure 7). 10. À titre de butée d’arrêt temporaire, insérer un tournevis dans l’orifice près du taquet du rail. Faire glisser le chariot jusqu’à ce point. 11. Utiliser un tournevis à tête plate et soulever le taquet du rail à la verticale, c’est-à-dire à un angle de 90 degrés (Figure 8). 12. Tirer la chaîne autour de la poulie.
PAGE 5
Juego de extensión del riel con cadena de 3.05 m (10 pies) ANTES DE COMENZAR: Modelo 6610CD Si el abre-puertas de garaje ya está completamente instalado, deberá desmontar el conjunto de riel y abre-puertas. • Las ménsulas de soporte del abre-puertas de garaje requieren el reposicionamiento y la adición de una ménsula extra para generar estabilidad debido a la mayor longitud del riel. • Después de la instalación deberá volver a ajustar los límites de carrera hacia ARRIBA y hacia ABAJO.
PAGE 6
SI ES UNA INSTALACIÓN EXISTENTE (CONTINUACIÓN): 9. Instale el ensamblaje del rodillo tensor (Figura 7). 10. Como un tope temporal, introduzca un destornillador dentro del orificio ubicado cerca de la lengüeta del riel. Deslice el carro hasta este punto. 11. Use un destornillador de punta plana para levantar la lengüeta del riel hasta que la lengüeta quede en posición vertical (90°) (Figura 8). 12. Jale la cadena alrededor del rodillo tensor.