Craftsman 139.53915D Manual Del Propietário página 8

ASSEMBLY STEP 1
Assemble the Rail & Install the Trolley
To avoid installation difficulties,do not run the garage door
opener until instructedto do so.
Thefront rail has a cut out "window" at the door end. Thefront
and back rail both have rail tabs. Theserail tabs MUST be on top of
the rail when assembled.
1. Remove the straight door arm and hanging bracket packaged
inside the front rail and set aside for Installation Step 5 and 12.
NOTE: Toprevent INJURY while unpacking the rail carefully
remove the straight door arm stored within the rail section.
2. Align the rail sections on a flat surface as shown and slide the
tapered ends into the larger ones. Tabs along the side will lock
into place.
3. Placethe motor unit on packing material to protect the cover, and rest the back end of the rail on top. For convenience, put a
support under the front end of the rail.
To prevent INJURYfrom pinching, keephands and fingers
away from the joints while assembling the 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. Checkto be sure there are 4 plastic wear pads inside the inner
trolley. If they became loose during shipping, check all packing
material. Snap them back into position as shown.
6. Slide the trolley assembly along the rail from the back end to the
screwdriver.
7. Slide the rail onto the "U" bracket, until it reaches all the stops
on the top and sides of the "U" bracket.
"U" Bracket
Back Rail Section
(TO MOTOR UNIT)
Outer Trolley
Inner Trolley
Wear Pads
SLIDE TO STOPS ON
TOP AND SIDES OF
"U" BRACKET
Front Rail Section
(TO DOOR)
Rail Tab
Idler Pulley
Trolley
Window
Cut-Out