Hornbach C800 Manuel D'installation Et De L'utilisateur page 203

Sprocket assembly
Flip the rail. Centre the bore
holes in the sprocket assembly
under the appropriate holes
in the rail and fi x the sprocket
assembly with the two Phillips
screws M5x20.
Motor unit
Join the motor unit and the rail.
Fit the shaft of the motor unit
slips into the sprocket assembly.
Position the two U rail clips
according to the holes in the
motor unit. To fi x the clips, use
the four self-threading screws
M6x16. Other screws might seri-
ously damage the garage door
opener.
Belt tensioning
Tighten the belt by turning the
tension nut clockwise, until the
spring is extended to 2.5 cm.
Do not overtighten the belt.
4
2x
5
4x
6
ENGLISH | 203