Assemble The Rail - Craftsman 139.53924 Owner's Manual

ASSEMBLY STEP 1
Assemble the Rail
To avoid installation difficulties, do not run the
garage door opener until instructed to do so.
1. Turn the opened rail carton upside down and empty
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.
To prevent INJURYfrom pinching, keep hands and
fingers away from the joints while assembling the rail.
Rail
Support
Braces ............
Straight
Door Arm
Extend Remove
End Rails _1,,-,,,, _ Cardboard Packing
Outward - )
Center
Rail
Trolley Rack
Rail Assembly
Carton / _ "_
Remove
Cardboard
Packing
Extend
End Rails
Outward
Rail Assembly
Hardware Bag
Chassis Assembly
Hardware Bag
NOTE: During assembly, avoid pulling the rail section
housing the trolley rack away from the screw rod.
The rack is factory set about 9" (23 cm) 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.
Rotate
Sprocket End Rail
Rail
Sprocket
Center Rail
Trolley Rack
Door End Rail