Assembly Section: Pages; Assemble The Rail - Chamberlain Security+ 4640 Owner's Manual

ASSEMBLY STEP 1

Assemble the Rail

Rail
Support
Braces
Rail Assembly
Carton
Remove
Cardboard Packing
1. Turn the opened rail carton upside down, emptying its
contents onto a level work surface.
2. Unfold the rails, taking care to avoid kinking the screw
rod joints.
3. Rotate the rail sections so that the flat side is down and
the screw side is up for all three lengths. Keep it clean
and free of debris while you are working.
Trolley Rack
Door End Rail

Assembly Section: Pages 8 - 11

Straight
Door Arm
Extend
End Rails
Outward
Rotate
Center Rail
To avoid installation difficulties, do not run the garage
door opener until instructed to do so.
Extend
End Rails
Outward
Rail Assembly
Hardware Bag
Sprocket End Rail
CAUTION: During assembly, avoid pulling the rail
section housing the trolley rack away from the screw
rod. The rack is factory set about 9" from the end of the
screw rod to the center of the rack.
If the plastic liner slides part way out during assembly,
simply push it back in.
8
Remove
Cardboard Packing
Center
Rail
Trolley Rack
Chassis Assembly
Hardware Bag
Rail
Sprocket