CENTURION SYSTEMS SDO4 SMART Installation Manual page 27

SECTION 6
6.2.1.4. Mounting the towing bracket to the garage door.
Close the garage door, and find
its center line. Make a level mark
perpendicular to the garage door
center line, and in line with the top
edge of the top roller of the garage
door.
Center the towing bracket on the
garage door center line and so that
the center of the two holes on the
protruding tabs are in line with the
top edge of the top roller.
Place a small spirit level on
the top edge of the towing
bracket, to ensure that it is
level when drilling holes.
Secure the towing bracket into
position using the three hexagonal
head self-tapping screws supplied.
If the garage door is heavier
than average, more screws
can be used to fix the
bracket to the garage door.
Ensure that the length of
the screws do not exceed
the depth of the garage
door.
The above method is for
the purpose of wooden
garage doors. Should you
have a garage door that is
not constructed from wood,
such as a steel garage door,
we recommend the use
of TEK® screws to secure
the towing bracket to the
garage door.
OPERATOR INSTALLATION - SECTIONAL DOORS
SDO4 SMART
Marked top
edge of the
top roller
Top roller
Garage Door
Protruding
tab
Top edge of
top roller
Towing bracket
Hex head
Self-tapping screw
page 27
Garage door
Garage door
center line
FIGURE 35
SDO4 SMART's
straight towing arm
Towing bracket
Garage door
center line
FIGURE 36
FIGURE 37
www.centsys.com