Centurion SD04 Installation Manual page 32

Locate the long clevis pin through
the holes and secure it into position
with a supplied Circle Clip on the
other end of the clevis pin.
Dowel split pins have also
been supplied should they
be preferred over the use of
the circle pin clips.
6.2.2.3. Mounting the SDO4
drive rail to the ceiling
Open the garage door, and gently
rest the SDO4 on top of the open
door.
If your ladder is high
enough, we recommend
resting it on top of the
ladder.
Find the center line of the garage
door, and mark it on the ceiling
above the location of the drive rail
hanger.
You can use the SDO4 drive
rail as a gauge to assist you
if necessary.
SDO4
page 32
Circle Clip
Header
bracket
Clevis
pin
SDO4
drive rail
FIGURE 54
FIGURE 55
Garage door center line
Ceiling
FIGURE 56
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