English (GB)
7
4. Checking angular alignment
Insert a pair of inside callipers or a taper gauge at
four points at 90 ° intervals around the coupling. See
fig. 7. The angular alignment is correct when the
measurements show that all points of the coupling
faces are within 0.2 mm of each other.
Fig. 7 Checking angular alignment
Recheck the coupling clearance and tighten the set
screws on the couplings.
Tightening torques
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 fig. 8. 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.
Fig. 8 Sectional view of foundation with anchor
bolt, grouting and base frame
TM03 0213 4504
Description Dimensions
Tightening torque
[Nm]
Hexagon head
screw
M6 10 ± 2
M8 12 ± 2.4
M10 23 ± 4.6
M12 40 ± 8
M16 80 ± 16
M20 120 ± 24
M24 120 ± 24
TM04 0384 0608
Base frame
Grout
Levelling
wedges or
shims left in
place
Top of
foundation left
rough
19 to 32
mm grout
Formwork
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