WARNING
1.
Close the door and mark the inside vertical centreline of the garage door.
2. Open the door slowly and find the highest point of travel where the
door extends above the door tracks. For sectional doors this is typically
where the top door roller exits the curved portion of the track onto the
horizontal section as the door is raised.
3. Place a mark on the header wall at the highest point of door travel,
preferably at the center of the door.
4. For sectional door, install the header bracket
[J7]
2” (5cm) above the
highest point of door travel.
5. For one-piece door, install the header bracket
[J7]
8” (20cm) above the
highest point of door travel.
6. Drill 5/32” holes in the header wall and secure bracket with lag screws
[D3]
.
• Door springs are under high tension. If spring or shaft is in the way,
measure above the spring or shaft on the garage door centreline
and mark as location for header bracket. DO NOT ATTEMP TO
MOVE, ADJUST, OR REMOVE DOOR SPRING!
• Header Bracket must be fastened to garage framing. DO NOT
fasten to drywall, particle board, plaster, or other such materials.
• 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.
Horizontal Line
Highest Point
of Travel
Vertical Central Line
D3
x2
J7
Door
Highest
Point of
Travel
Header Bracket
8” (20 cm)
One-Piece Door
Door
Header Wall
Highest
Point of
Travel
Header Bracket
2” (5 cm)
Track
Sectional Door
Header Wall
Step 1 – Install the header bracket
11
INSTALLATION
