Craftsman 13953663SRT 1/2-hp garage door opener

User Manual - Page 10

For 13953663SRT.

PDF File Manual, 40 pages, Download pdf file

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Assembly Step 2
Fasten the Rail To the Power Unit
and Install the Trolley
NOTE: To aid in assembly and installation, replace
the foam packing around the power unit. Remove it
after Installation Step 5.
Working on a level surface, align the rail assembly with
the power unit, as shown.
Slip the coupling over the rail sprocket.
Slide the rail through the power unit bracket until the
coupling fits securely over the power unit sprocket.
Align the two screw holes in the rail with those in the
power unit bracket. Insert two 1/4"-20x5/8" hex screws
and lock nuts. Tighten securely with a 7/16" socket
wrench.
Rail/Power Unit
Bracket
Lock Nuts
1/4"-20
I
Power
Unit --
Rail Coupling
Spr°cket/_
7
Foam Packaging
Power Unit
Sprocket
Hex Screws
1/4"-20x5/8"
TroIley
Rail
Assembly
Hardware Shown Actual Size
1/4" - 20
1/4" - 20 x 5/8" Lock Nut
As illustrated above, slide the trolley omo and along the
bottom of the rail until it snaps firmly in place. Be certain
to install #facing correctly: the trolley release arm must
be horizontal (lock position), with its" arrow pointed
away from the power unit.
10
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