1900 Series Horizontal Splitcase Pumps
Instruction and Repair Manual
11
11/12/18
WARNING:
Do not pick up the complete unit by the driver eye bolts or pump shaft.
FOUNDATION:
The pump foundation should have a level surface and be of sufficient mass to prevent vibration and form a permanent
rigid support for the unit. The most satisfactory foundations are concrete with anchor bolts of adequate size embedded
in the foundation in pipe sleeves with an inside diameter 2-1/2 times larger than the bolt diameter. This will allow for final
accurate positioning of the unit.
Recommended anchor bolt design is available from the factory.
LEVELING OF THE UNIT:
Lower the unit onto the foundation and position the base so the anchor bolts are aligned in the middle of the holes in the
base. Disconnect the coupling halves and do not reconnect until all alignment operations are complete.
Set the base on metal shims or metal wedges placed directly under the part of the base carrying the greatest weight, and
spaced close enough to give uniform support and stability.
Adjust the metal shims or wedges until the shaft of the pump and driver are level or vertical as appropriate and until pump
and driver shaft are aligned with each other. Make sure that all shims or wedges fit firmly between the foundation and the
base.
If leveling nuts are installed on the anchor bolts and are used for alignment, follow the same procedure as with shims
or wedges. Support the base with additional shims or wedges if necessary. Make sure that all nuts and shims are in firm
contact with the base. Tighten the foundation bolts snugly, but not too firmly, and recheck the shafts for alignment
before grouting.
GROUTING:
IMPORTANT:
The pump base must be set level to avoid any mechanical
difficulties with the pump or motor. The 1900 pump was
properly aligned, if supplied with a motor, at the factory.
However, since the pump base is flexible, it may spring
and twist during shipment. Do not pipe the pump until it is
realigned.
Grouting the base plate prevents lateral movement of the base
plate, and improves the vibration absorbing characteristics of
the foundation by increasing its mass. A wooden dam should be
constructed around the base plate to contain the grout while it is
being poured. The dam can be built tight against the base plate, or slightly removed from it as desired. Refer to Fig. 1. The
entire base plate should be completely filled with nonshrinkable type grout. Be sure to remove all air bubbles from the
grout.
CAUTION:
Damaging vibration may result if the base plate is not solidly in contact with the grout bed.
Do not fill the pipe sleeves with grout.
If leveling nuts are used, make sure they are not embedded in grout. Provide access in the grout to the leveling nuts so
that they can be backed off after the grout has cured.
SHIMS TO LEVEL BASE PLATE
WOODEN DAM
ON BOTH ENDS
TWISTED TENSION WIRE
ROLLED STEEL BASE
FOUNDATION BOLTS
SOUPY GROUT
Figure 1. Grouting the Base for Frame Mounted Pumps.
