Assembly; Assemble The Rail - Chamberlain Power Drive PD505D 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. 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 flat
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.
Rail Support Braces
Back Rail
Remove Cardboard Packing
Hanging Brackets
Straight Door Arm
Rail Assembly Carton
Hex Bolts
Center Rail
1/4-20x7/16"
To prevent INJURY from pinching, keep hands and fingers
away from the joints while assembling the rail.
Rail Assembly
Header Rail Brackets
Hex Bolts
1/4-20x7/16"
Hex Bolts
1/4-20x7/16"
8
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt 1/4-20x7/16"
Rail Assembly
Remove Cardboard Packing
Sprocket Coupling
Remove
Cardboard
Packing
Hex Bolts
1/4-20x7/16"
Header Rail