Installation
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Oleolift-C
3.3.12 Backfilling the excavation
Specifications:
■
The construction materials utilised and installation method must not cause any harmful
deformations, damage or unsuitable load cases for the tank and shaft components.
■
Bed the tank all round (
≥
0.50 m) with a fine-grained sand-gravel or sand-crushed rock
mixture of the soil groups GW or GI according to DIN 18196.
■
The backfill material must be placed in layers (
≤
30 cm high) and compacted with
lightweight compacting equipment to a Proctor density of Dpr
≥
97%.
■
The frame of the cover should never be higher than the surfacing, rather the surfacing
should be slightly higher and drawn up at the edge of the frame.
■
When laying the surfacing (e.g. asphalt surface), the cover must not be moved.
■
The shaft structure may not be loaded until the excavated pit has been completely
backfilled and the materials used have cured sufficiently.
Î
Backfill the excavation pit.
3.4 Installation work
3.4.1 Assembling the chain holder
In the as-delivered condition, a chain holder with fixing material is enclosed as a loose part.
Requirement: The chain holder should be assembled centrally in the cover plate according
to the height.
Î
Lift the cover out of the cover frame
above the pump station chamber and
store to the side.
Î
Transfer and mark the middle axis (
●
)
between both sliding pipes (A + B)
vertically in the opening of the cover plate.
Î
Fasten the chain holder
on the
marked position.
Î
Replace the cover.
A
●
B
3.4.2 Installing the submerged pumps
Submerged pumps with assembled coupling pieces, cable eyelets, pump pull chains (by the
metre) and shackles can be purchased from ACO as an option.
