Centurion SD04 Installation Manual page 23

Level the SDO4 again, and measure
the length needed from the ceiling
to the underside of the drive rail,
marked as 'Value Xmm' in Figure 29.
Using an angle grinder or hack saw,
cut two lengths of punched angle
iron to the measurement taken for
'Value Xmm'.
Snip off the four corners of
the punched angle iron to
add a degree of safety and
neatness to the installation.
Remove the two drive rail hanger
nuts from the bolts, and locate the
two lengths of punched angle iron
into position as shown in Figure 31.
Secure them in position with the two
drive rail hanger nuts.
Ensure that the punched
angle iron does not
protrude further than the
SDO4 drive rail base,
as this will interfere
with the operation of the
motor!
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Ceiling
Mounted punched
angle iron
Spirit level
Drive Rail
SDO4
Two equal
lengths
of punched
angle iron
V a
l u e
SDO4
Drive rail hanger
bracket
page 23
FIGURE 29
V a
l u e
X m
m
X m
m
FIGURE 30
Punched
angle iron
Drive rail
hanger nut
Drive rail
hanger bolt
FIGURE 31