Grundfos LS User Manual

3.2.5.3 Grouting
Grouting compensates for uneven foundation,
distributes the weight of the unit, dampens vibrations
and prevents shifting. Use an approved, non-
shrinking grout. If you have questions or doubts about
the grouting, consult an expert on grouting.
Proceed as follows:
1. Build a strong formwork around the foundation to
contain the grout.
2. Soak the top of the concrete foundation
thoroughly, then remove surface water.
3. Fill the formwork with grout up to the top edge of
the base frame. See figure below. Allow the grout
to dry thoroughly before attaching the pipe to the
pump. 24 hours is sufficient time with approved
grouting procedure.
4. When the grout has thoroughly hardened, check
the anchor bolt nuts and tighten them if
necessary.
5. Approximately two weeks after the grout has been
poured, or when the grout has thoroughly dried,
apply an oil-based paint to the exposed edges of
the grout to prevent air and moisture from getting
in contact with the grout.
2
3
4
5
7
6
1
TM040384
Sectional view of foundation with anchor bolt,
grouting and base frame
Pos. Description
1 Base frame
2 Grout
3 Levelling wedges or shims left in place
4 Top of foundation left rough
5 19 to 32 mm grout
6 Formwork
3.2.6 Installing coupling guard
1. Align the notch of coupling guard and the
lubricating nipple (2). Then install the coupling
guard (4) to the outer ring of the bearing housing
(1) (or
1)
the fixing ring for pre-installation).
4
1
2
TM081965
Installing the coupling guard to bearing housing
2. Install the coupling guard spacer (5) to the other
side of coupling guard, and then fasten bolts (6)
(3).
3
5
6
TM081966
Install the coupling guard spacer
12
English (GB)

Grundfos LS Specifications

General

Type	Submersible Pump
Protection class	IP68
Frequency	50 Hz
Application	Drainage
Liquid Temperature	0 °C to 40 °C
Seal Type	Mechanical seal