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6
Assembly
1 Attach the Rail to the Garage Door Opener
To avoid SERIOUS damage to garage door opener, use ONLY the 1/4"-20x1-3/4" self-threading
screws provided.
To avoid installationdifficulties, do not run the garage dooropener until instructed todoso.
1. Place the motor unit on packing material to protect the cover, and rest the back end ofthe rail
on top. For convenience, put a supportunder the front end ofthe rail.
2. Ensure thatthe chain spreader is installed.
3. Place the rail onto the motor unit. Loop the chain around the sprocket. The sprocket teeth must
engage the chain.
4. Align the screw holes in the rail with the holes on top of the motor unit.Use a 1/4" socketto
fasten the rail with the screws.
5. Attach the outer trolley to the rail and then slide into place over the inner trolley.
HARDWARE
Self-Threading Screw
1/4"-20x1-3/4"
IMPORTANT: Use ONLY
the 1/4"-20x1-3/4"
self-threading screws
provided in a separate bag
inside the hardware bag.
Packing
Material
Rail
Tab
Sprocket
Chain spreader
Outer
Trolley
Inner
Trolley
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