
TECHNICAL INSTRUCTIONS
4853989
10/ 2003
Our policy is one of continuous improvement and we reserve the right to alter specifications of our products at any time.
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Add or remove shims under the base to level the pump-shaft of horizontally mounted pump units. The
base plate itself does not have to be level.
Torque down foundation nuts tight against the base plate and observe pump and motor shafts or
coupling hubs for alignment.
Note: Square tapered washers should be used on the channel section flanges, to ensure that the
foundation bolts are not bent.
Grout base plate in completely using non-shrink grout and allow it to dry thoroughly before attaching
piping to pump (24 hours is sufficient time with the approved grouting procedure).
The suction and discharge piping should be installed after the pump unit, ensuring that no pipe strain
is placed on either flange, and that both pump and pipe flanges are square to each other
GROUTING PROCEDURE
Grouting compensates for uneven foundations, distributes weight of unit and prevents shifting. Use
an approved, non-shrinking grout as follows:
Soak top of concrete foundation thoroughly, then remove surface water. Completely fill base plate
with grout.
After grout has thoroughly hardened check foundation bolts and re-tighten if necessary, then re-check
alignment.
Approximately 14 days after the grout has been poured or when the grout has thoroughly dried, apply
an oil based paint to the exposed faces of the grout to prevent air and moisture from coming into
contact.
2.6.2 INSTALLATION FOR FOLDED METAL BASE PLATES WITH SIDE FLANGES
Move pump unit into position and drill holes using base plate foundation holes as a guide. Install
anchors in line with manufacturers instructions. Use blocks and shims under the base for support,
either side of foundation bolts and midway between bolts, to raise the base approximately 1 inch
above the concrete foundation.
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