Graf Carat S Serie Notice D'installation page 21

6. Assembling the tank dome and telescopic dome shaft
6.1 Fitting tank dome
Before the actual installation, the supplied seal is inserted
between the tank and the tank dome in the sealing groove of
the tank neck "B", then the tank dome is aligned with the
pipework and pushed into the tank neck as far as it will go. It is
essential to ensure that the upper seal "A" is correctly in place.
„A"
6.2 Assembling the telescopic dome shaft
The telescopic dome shaft enables the tank to be variably adjusted
to the given terrain surface. For assembly, the profile seal (EPDM
material) of the tank dome is generously rubbed with soft soap (do
not use lubricants based on mineral oil, as these attack the seal).
The telescope is then also greased, inserted and levelled to the
ground surface.
6.3 Telescopic dome shaft (pedestrian
loading)
To prevent loads from being transferred to the tank, the
telescope is filled in layers (< 300 mm) with round grain
gravel (max. grain size 8/16) and compacted evenly.
Damage to the container tank dome
avoided. Then place the manhole cover in position, screw the
cover lock shut with a hexagon spanner and tighten it so that it
cannot be opened without tools.
info@graf.info
www.graf.info
„B"
or telescope must be
21 / 56
„A"
„B"
„A"
„A"