10
Upon request, the standard cover can be replaced with a smaller one, when the door section dimensions prevent the standard cover from
closing on the transom.
The smaller cover includes the slot for brush insertion.
STANDARD COVER
SMALLER COVER
6) BELT TIGHTENING ADJUSTMENT
To adjust belt tensioning, slightly loosen the screw A of
the idle pulley, then screw in (to increase belt tensioning)
or unscrew (to decrease belt tensioning) the hexagonal
screw B.
After achieving the optimum driving belt tightening, fully
tighten screw A.
FIG. 8
7) POSITIONING THE MECHANICAL LIMIT DEVICE
The mechanical limit device must be adjusted so that both during opening and
closing it stops the trolley run before the mobile leaf hits any other component.
It is also used by the electronic control unit to get the leaf limit points.
When adjusting the opening mechanical limit device, take into account that
except for the set-up manoeuvre and for the first manoeuvre after a power
failure, at the end of the opening the mobile leaf stops about 5 mm before
coming into contact with the limit device.
To adjust the limit device, loosen the 2 setscrews, move the limit device to the
desired position, then fully tighten the 2 screws again.
FIG. 9
SETSCREWS
