6
−
The manual release device support must be welded onto the leaf now. Turning the key in the
apposite hole the system switches to manual operation so that the gate can be opened by hand if
necessary. (Figure E)
−
Gate knockers must be mounted on ground to limit the movement of the gate. (Figure F)
DRAINAGE PIT
If the drainage of the installation cannot be connected up to the main drains, it may be possible to
use a drainage pit. The floor must be permeable by water, and the cover of the foundation box should
be protected against heavy rainfall or surface water with sealant silicon. The drainage pit should be
dug out so as to be appreciably lower than the bottom of the foundation box, and its capacity should
exceed the one of the foundation box. The pit should be filled with course ruble or gravel, an should
be tiled to keep out sediment and water from the top and sides. Facilities should be provided for
leading any water getting into the foundation box to the drainage pit.
Figure F
E
N
G
L
I
S
H
Figure E
