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Assembly Step 1
Attach the T-rail to the Opener
To fasten rail, use only those screws mounted
in top of the opener. Failure to do so will cause
serious damage to the opener.
6
USE ONLY THIS
TYPE AND SIZE
SCREW
Washered Screw
5/16"-18x1/2"
Styrofoam
Chain
T-rail
Hole
Assembly Step 2
Attach Chain to Sprocket and
Install Sprocket Cover
• Position chain over the opener sprocket. If
necessary, loosen the outer nut on the trolley to
obtain more chain slack.
• Insert the second washered screw.
CAUTION: Use only the screw previously
removed from opener!
• Tighten both screws securely through the T-rail
into the opener as shown.
Install The Sprocket Cover:
• Insert the back tab in the opener slot. Squeeze the
cover slightly and insert the front tab in the slot on
the mounting plate.
• Remove the two washered screws mounted in top
of opener.
• Position T-rail at a 45˚ angle to opener so one hole
in T-rail and opener line up.
• Thread one of the washered screws part way in.
Use only these screws!
Use of any other screws
will cause serious damage to door opener.
• Align T-rail and styrofoam over opener sprocket.
Cut tape from T-rail, chain and styrofoam.
• REMOVE STYROFOAM.
CAUTIONCAUTION
Assembly Section: Pages 6 – 7
USE ONLY THIS
TYPE AND SIZE
SCREW
Washered Screw
5/16"-18x1/2"
Opener
Sprocket
Sprocket
Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
Top of Opener
Proceed to Assembly Step 3, Page 7
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
sprocket cover securely. Never operate opener
while your hand is near the opener sprocket.
WARNING