Assembly Step; Assemble The Rail - Craftsman 139.53993DM Manual Del Propietário

ASSEMBLY STEP 1

Assemble the Rail

To avoid installation diffi culties, do not run the garage door
opener until instructed to do so.
1. Open the rail carton and remove the contents onto a level work
surface. Keep it clean and free of debris while you are working.
2. Identify the rail sections and orient the sections on a fl at surface
as shown. The back rail has a black gear on one end. The
header rail has a black plastic rack inside the rail on the screw.
The remaining section is the center rail.
NOTE: Use caution when handling the center rail section. The
screw can slip out if the section is tipped up too far.
Hanging Brackets
Rail Support Braces
Straight Door Arm
Back Rail
Hex Bolts
1/4"-20x7/16"
Remove Cardboard Packing
Header Rail Brackets
Rail Assembly Carton
Hex Bolts
1/4"-20x7/16"
Center Rail
Hex Bolts
1/4"-20x7/16"
To prevent INJURY from pinching, keep hands and fi ngers
away from the joints while assembling the rail.
HARDWARE SHOWN ACTUAL SIZE
Rail Assembly
Remove Cardboard Packing
Sprocket Coupling
Remove
Cardboard
Packing
Hex Bolts
1/4"-20x7/16"
Header Rail
8
Hex Bolt 1/4"-20x7/16"
Rail Assembly