Chamberlain 7710CB-P Manual

Chamberlain Ikke kategoriseret 7710CB-P

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Side 1/4

Ten-Foot Rail Extension Kit

Model 7710CB and 7710CB-P

The garage door MUST be in the fully closed position during

installation.

To prevent possible SERIOUS INJURY or DEATH:

• Disconnect ALL electric and battery power BEFORE performing

ANY service or maintenance.

Figure 1

Figure 2

To remove rail pry both

end tabs of front

rail slightly outward

Idler Bolt hole

(KEEP LARGER

ONE ON TOP)

NEW

FRONT RAIL

CORRECT

INCORRECT

Rail Tab

Threaded

Shaft

Outer

Nut

Front Rail

Section

(TO DOOR)

Inner

Nut

Lock

Washer

Master

Link

Master

Link

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

trolleyfrom 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 from the trolley shaft and set aside.(Figure 1)

5. Disconnect the two master link assemblies from the trolley (Figure 1)

and discard.

6. Remove idler pulley assembly and set aside.

7. Remove the chain/cable assembly and discard.

8. 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 , then slide it off the existing rail (Figure 2)

assembly. Discard the front and second rails.

9. 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.

10. As a temporary stop, insert a screwdriver into the hole 10" (25 cm)

from the front end of the rail . Slide the trolley assembly to (Figure 1)

this point.

11. Locate the rail tab. Use a flathead screwdriver and lift the rail tab until

the tab is vertical (90°) .(Figure 2)

12. Refer to your owner’s manual to complete the assembly, 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.

14. Make adjustments and test the safety reversal system according to the

owner's manual.

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

Lock Washer 5/16"

Nut 5/16"-18

Lock Washer 5/16"

Nut 5/16"-18

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

Hanging Bracket

(Cross Brace)

Lock Washer 5/16"

Nut 5/16"-18

Lock Washer 5/16"

Nut 5/16"-18

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

Hanging Bracket

(Cross Brace)

Hex Bolt

5/16"-18x7/8" Nut 5/16"-18 Lock Washer 5/16"

Hanging Bracket (Cross Brace) Not shown actual size

HARDWARE SHOWN ACTUAL SIZE

To avoid possible SERIOUS INJURY from a falling garage door

opener, fasten it SECURELY to structural supports of the garage.

Concrete anchors MUST be used if installing any brackets into

masonry.

REPLACEMENT PARTS

Part No. Description Qty

41A5807-2 10' Chain/Cable Assembly 1

183C157-10 Center Rail Section 1

41A3021 Rope 1

4A1008 Master Link Kit 1

ADDING AN ADDITIONAL HANGING BRACKET:

Cut the enclosed hanging bracket to fit across the installed (cross brace)

hanging brackets. Fasten the cross brace to the top and bottom hole of the

hanging brackets using 5/16" -18x7/8" hex bolts, (Figure 3 and Figure 4)

5/16 lock washers and 5/16" -18 nuts.

Figure 3 Figure 4

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Produkt Specifikationer

Mærke:	Chamberlain
Kategori:	Ikke kategoriseret
Model:	7710CB-P

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