Chamberlain 7710CB Instruction Manual download pdf

Model 7710CB

Ten-Foot Rail Extension Kit

Idler

Pulley

Slotted

Hole

Master Link

Clip-On Spring

Trolley

Threaded

Shaft

Master

Link Bar

Cable

Link

Cable

Notch

Master

Link Cap

Master

Link Bar

Trolley Stop Bolt

1/4"-20x1-3/4"

Figure 1

To prevent possible SERIOUS INJURY or DEATH:

• Be sure door is CLOSED and

• Disconnect power to opener BEFORE proceeding.

WARNING

CAUTION

WARNING

ATTENTION

AVERTISSEMENT AVERTISSEMENT

AVERTISSEMENT

Outer Nut

Trolley Shaft

Inner Nut &

Lock Washer

Master Link

Master Lin

Figure 3

Window

Cut-Out

Locking

Pliers

Idler

Pulley

Bolt Hole

8" from

Idler Pulley

Hole

Trolley Stop

Hole

Extension

Rail

Figure 2

OWNER’S INSTRUCTIONS

Figure 4

Idler Bolt hole

(KEEP LARGER

ONE ON TOP)

NEW

FRONT RAIL

Trolley

Stop Hole

To remove rail pry both

end tabs of front

rail slightly outward

BEFORE YOU BEGIN:

• The trolley must be in down (closed door) position during

assembly and installation. If you have a completely installed

garage door opener, the rail/opener assembly must be taken

down. UP and DOWN Limits must be readjusted after

installation.

• Opener hanging brackets will require repositioning and the

addition of an extra bracket for stability due to increased

rail length.

IF THIS IS A NEW INSTALLATION:

Use the front (header), chain/cable assembly, and longer

emergency release rope in this kit in place of those packaged

with your garage door opener. Add the enclosed center rail as the

second rail section, creating a five piece rail assembly. Complete

the assembly, installation, and adjustment of your opener

according to your owner’s manual, with the exception of adding

an additional hanging bracket for stability.

IF THIS IS AN EXISTING INSTALLATION,

CONTINUE AS FOLLOWS:

1. Disconnect power to opener.

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

the trolley from the door arm.

3. Disconnect the rail/opener assembly from the header bracket

and hanging brackets, and place it on the floor.

4. Remove the outer nut (Figure 1) from the trolley shaft and

set aside.

5. Disconnect the two master link assemblies from the trolley

(Figure 2) and discard.

6. Remove idler pulley assembly and set aside.

7. Remove the chain/cable assembly and discard.

8. Remove the 1/4"-20x1-3/4 bolt and lock nut from the trolley

stop hole in the front rail and set aside.

9. Push the trolley back toward the opener. Disconnect the front

rail and second rail sections by using a screwdriver tip to pry

up the outer tab on each side of the rail (Figure 3), then slide

it off the existing rail assembly. Discard the front and second

rails.

10. Align the new front and center rails with the existing rail

assembly, keeping the cut out “window” at the front (header)

end. Be sure to keep rails right side up: the idler pulley bolt

hole above the window is larger on top of the rail than on the

bottom. Slide the new center rail onto the assembly, then add

the front rail. Tabs along the side will lock into place.

11. As a temporary trolley stop, clamp a locking pliers onto the

rail, 8" (20cm) from the center of the idler pulley hole (Figure

4). Slide the trolley assembly to this point.

12. Refer to your owner’s manual to complete the assem

bly,

re-installation and adjustment of your opener. NOTE: Before

hanging the opener, an additional hanging bracket is

necessary for stability. See Adding An Additional Hanging

Bracket on reverse side. (Replace the old emergency release

rope with the new, longer replacement rope.)

13. Reconnect power and operate the door in the UP direction.

14. Increase the UP travel limit by turning the UP limit adjustment

screw in a clockwise direction as shown on label. One turn

equals 2" (5 cm) of travel.

1 2 3 4

Summary of Contents

Page 1 - Ten-Foot Rail Extension Kit

Model 7710CBTen-Foot Rail Extension KitIdlerPulleySlottedHoleHoleMaster LinkClip-On SpringTrolleyThreadedShaftMasterLink BarCableLinkCablePinNotchMast

Page 2 - Figure 6

Page 3 - AVERTISSEMENT

Modèl 7710Nécessaire de rallonge de rail de10 pieds (3 m)Ressort à pince du maillon de raccordChapeau du maillon de raccordMaillonde câbleBarre du mai

Page 4

AJOUT D’UN SUPPORT PENDANT SUPPLÉMENTAIRE :Découper le support pendant inclus (entretoise) pour l’adaptertransversalement sur les supports déjà instal

Chamberlain 7710CB Instruction Manual

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Chamberlain 7710CB Instruction Manual

Browse online or download Instruction Manual for Unknown Chamberlain 7710CB. Chamberlain 7710CB Instructions / Assembly User Manual

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