Grundfos NB Installation And Operating Instructions Manual page 25

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6. Ensure proper shuttering at both ends of the base
frame.
A: shuttering
7. If necessary, check the levelling of the base frame
again before grouting.
8. Pour non-shrinking grout through the openings of
the base frame until the space underneath the
base frame has been filled completely.
9. Fill the formwork with grout up to the base frame
top level.
10. Allow the grout to dry thoroughly before attaching
piping to the pump. 24 hours is sufficient time with
approved grouting procedure.
11. When the grout has thoroughly hardened, check
the anchor bolt nuts, and tighten, if necessary.
12. Approximately two weeks after pouring the grout,
or when the grout has thoroughly dried, apply an
oil-based paint to the exposed edges of the grout
to prevent the grout from getting into contact with
air and moisture.
1
2
3
Pos.
Description
1
Base frame
2
19-32 mm (0.75 - 1.25 in) grout
3
Formwork
A
6
5
4
Pos.
Description
4
Foundation with rough top
Levelling wedges and shims left in
5
place
6
Grout
A
5-10 mm (0.2 - 0.4 in.)
After installation is finished, tighten the
screws connecting the flange, feet and the
anchor bolts according to the tightening
torques. You must apply an anti-loose
method, such as mounting lock washers.
25

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