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1. Mark the Door Centerline
Close the door from inside the garage and mark the vertical centreline of the door on the wall and
the top door panel.
2. Mark Above the Highest Point of Travel
Close the door from inside the garage and mark the vertical centreline of the door on the wall and
the top door panel.
NOTE
•
Too much or too little tension will cause excessive noise.
Sectional Door Jamb Door
Mark a spot on the
centreline of the garage
door, 7” (18 cm) above
the highest point of travel
of the garage door.
Mark a spot on the
centreline of the garage
door, 1 1/4” (3 cm) above
the highest point of travel
of the garage door.
One-Piece Jamb Door Sectional Door
Highest point of travel
1 1/4” (3 cm) above
highest point of travel.
WARNING
• Header bracket must be secured to structural supports. If appropriate support does not exist,
install a new support using 2x4 board on drywall or between 2 studs with lag screws (not
included). DO NOT install header bracket over drywall.
• Concrete anchors must be used if mounting header bracket or 2x4 into masonry.
• Always call a trained door systems technician if garage door binds, sticks, or is out of balance.
An unbalanced garage door might not reverse when required.
INSTALL THE HEADER BRACKET
INSTALL THE HEADER BRACKET
1313 1414
Remove the “U” pin from the turnbuckle after tighten
the belt tension properly.
ASSEMBLE THE RAIL
“U” Pin
9. Attaching the Sprocket Cover
Squeeze the cover slightly and insert
the 2 tabs on the cover in the slots on
the motor unit.
10.
Garage Door Safety Label
Affix this label to the inside of your garage.
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