Graf Carat S Serie Notice D'installation page 22

6. Assembling the tank dome and telescopic dome shaft
6.4 Telescopic dome shaft (driven on by cars)
If the container is installed under car traffic areas, the
telescopic must be underlaid with concrete
B25 = 250 kg/m²) in the collar area. The concrete layer to be
filled must be at least 300 mm wide and approx. 200 mm high
all round.
Only for telescopic manhole for cars: Close the manhole cover
with a hexagon spanner and tighten it so that it cannot be
opened without tools.
6.5 Universal telescopic dome shaft
For installation under lorry traffic areas, the telescope
shimmed as described in point 6.4 above. The cast frame
be provided by the customer or the concrete rings
provided by the customer are then installed to distribute the load
on the cover. The cast frame must have a bearing surface of
approx. 1 m² so that the load forces cannot be transferred to the
manhole casing under any circumstances.
Attention: It is essential to use a class D cover.
6.6 Assembling the extension
For larger coverage heights an extension is needed. To insert the
extension into the tank dome, soft soap is needed. Into the highest
groove of the extension the profile seal is inserted an greased
generously. Afterwards push the telescopic dome shaft into the
extension and adapt it to the planned area surface.
max. earth-cover 1500 mm
(in each case in connection with the Maxi telescopic dome shaft)
Telescopic dome shaft (can be inclined by 5°)
Extension
Tank dome (can be rotated by 360°)
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