Centurion SD04 Installation Manual page 18

Place the header bracket on the
wall as shown in Figure 15.
Ensure that the bottom edge of
the bracket is level, and no more
than 50mm above the highest
arcing point of the garage door.
Mark the location of the four screw
holes (Hole A, B, C and D[optional]).
Note the orientation of the
header bracket.
Mounting the drive rail
more than 50mm above
the highest arcing point
of the garage door may
cause the drive rail to
flex excessively.
Drill four 11mm diameter holes in
position of 'Hole A', 'Hole B', 'Hole
C' and 'Hole D'(optional), at least
50mm deep.
Place a fischer plug in each hole,
followed by the header bracket.
Secure it in position with at least
three coach screws (supplied)
(13mm hexagonal head).
Hole A
0-50mm
Highest arcing
point
Hole A
0-50mm
Highest arcing
point
Header bracket
page 18
Hole B
Hole C
Header bracket
(Note the orientation)
Hole D
(Optional)
Garage door center line
Garage door
FIGURE 15
Hole B
Hole C
Hole D
(Optional)
Garage door center line
Garage door
FIGURE 16
11mm
Holes
Plugs
Coach screws
FIGURE 17
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