User's Manual

5
Assembly
STEP 1 Assemble the rail and trolley
To preventINJURY from pinching,keep hands and fingers away from the joints while assembling the
rail.
To avoid installation difficulties, do not run the garage door opener until instructed to do so.
The front rail has a cutout “window” atthe door end (see illustration). The hole above this window is
larger on the top ofthe rail than on the bottom.A smaller hole 3-1/2" (8.9 cm) away is close to the rail
edge.Rotate the back rail so it has a similar hole close to the opposite edge,about 4-3/4" (12 cm) from
the far end.
1. Remove the straightdoor arm and hanging bracketpackaged inside the front rail and set
aside for Installation Step 5 and 9. NOTE: To prevent INJURY while unpacking the rail
carefully remove the straight door arm stored within the rail section.
2. Align the rail sections on a flatsurface as shown and slide the tapered ends into the larger
ones. Tabs along the side will lock into place.
3. Place the motor uniton packing material to protect the cover,and restthe back end ofthe rail
on top. For convenience, put a support under the front end ofthe rail.
4. As a temporary stop, insert a screwdriver into the hole 10" (25 cm) from the front end of the rail,
as shown.
5. Check to be sure there are 4 plasticwear pads inside the inner trolley.Ifthey became loose
during shipping,checkall packing material. Snap them back into position asshown.
6. Slide the trolley assemblytoward the screwdriver asshown.
7. Slide the rail onto the “U” bracket, until it reaches all the stopson the top and sides ofthe “U”
bracket.
To garage
door opener
(TO MOTOR UNIT)
Front Rail
Section
(TO DOOR)
“U” Bracket
Outer Trolley
Inner Trolley
Wear Pads
Rail
Tab
Trolley
Window
Cut-Out
SLIDE TO STOPS
ON TOP AND
SIDES OF
“U” BRACKET
Idler
Pulley
Hole