Assembly step 3, Caution – Sears CRAFTSMAN 139.53640SRT User Manual
Page 9
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Assembly Step 3
Fasten the T-raii to the Opener
A
CAUTION
• Place the opener on packing material to protect
the cover. For convenience, put a support under
the cable pulley bracket.
• Remove the (2) 5/16"-18x1/2" washered screws
mounted in the top of the opener.
• Align the holes in the back section of the T-rail with
the holes in the opener.
• Fasten the rail with the (2) washered screws
previously removed. Tighten securely.
Remember to use only these screws! Any other
screws will cause serious damage to the opener.
• Insert a 5/16"-18x7/8" hex screw into the trolley
stop hole in the T-rail as shown. Tighten securely
with a 5/16" lock washer and nut. This screw limits
trolley travel in the UP direction.
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.