Centurion SD04 Installation Manual page 15

4. Place the two U-Brackets into
position over the four holes found
on the head unit (Figure 9).
5. Secure the U-Brackets into
position using 4x black M6x12mm
screws supplied (Figure 10).
6.1.3. Tensioning the chain
The chain comes pre-tensioned
from the factory; however, ensure
that the spaces between the spring
windings are 0.5-1mm. Use a 13mm
socket wrench to tighten the drive
should there, for whatever reason,
be a deviation from these values.
www.centsys.com
U-Brackets
M6x12mm
Screws
Drive chain
tensioning
bolt
To relax the
drive chain
13mm Socket
wrench
page 15
FIGURE 9
FIGURE 10
End B
To tension the
drive chain
FIGURE 11