Chamberlain 8810CB Instructions Pour L'utilisateur

WARNING
USER'S INSTRUCTIONS
CAUTION
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), belt 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
(remove one of the center rails packaged with the garage door
opener) 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. 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 hanging brackets, and place it on the floor.
3. Remove the belt cap retainer from the opener sprocket and set
aside.
4. Disconnect the master link from the trolley threaded shaft and
belt; discard.
5. Remove the spring/nut from the trolley and discard.
6. Remove idler pulley assembly and set aside.
7. Remove the belt 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 1), 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" (20 cm) from the center of the idler pulley hole (Figure 2).
Slide the trolley assembly to this point.
12. Lay the new belt beside the rail (Figure 3). Grasp the end with
the hooked trolley connector and pass approximately
12" (30 cm) of belt through the window. Keeping the ribbed side
toward the rail, and allow it to hang while you complete the next
two steps.
13. Replace the idler pulley, lock washer and nut. Rotate it to be
sure it spins freely. Grease the center, if necessary.
14. Replace the the 1/4"-20x1-3/4" bolt and lock nut into the trolley
stop hole.
15. Pull the belt around the idler pulley and hook the trolley
connector into the retaining slot on the trolley (Figure 4). The
ribbed side must contact the pulley.
Model 8810CB
®
Ten-Foot Rail Extension Kit
To prevent possible SERIOUS INJURY or DEATH:
• Be sure door is CLOSED and
• Disconnect power to opener BEFORE proceeding.
Figure 1
To remove rail pry both
end tabs of front
rail slightly outward
Figure 2
Locking
Pliers
Idler
Pulley
Bolt Hole
Window
Cut-Out
Figure 3
Idler
Bolt
Trolley
Stop Hole
Lock
Washer 3/8"
Nut 3/8"
Figure 4
Idler Pulley
WARNING
WARNING
Trolley
Stop Hole
8" (20 cm) from
Idler Pulley
Hole
Extension
Rail
Trolley Stop
Hole
Bolt
Rail
Pulley
Nut
Washer
Trolley
Stop Hole
Locking
Pliers
Idler Pulley
Trolley
Connector
Master Link
Clip-On Spring
Master Link Cap
Trolley
Threaded
Shaft
Hole
Retaining
Slot
Trolley
Connector
NEW
FRONT RAIL
Idler Bolt hole
(KEEP LARGER
ONE ON TOP)
Bolt
1/4"-20x1-3/4"
Lock
Nut
Idler
Pulley
Pin
Notch
Master
Link Bar