2.3 Location
Pumping unit should be placed as close as practical to the source of supply. Floor space and head room
allotted to the unit must be sufficient for inspection and maintenance. Be sure to allow for crane or hoist
service. On horizontally split case pumps, always allow sufficient head room to remove the upper half
casing.
2.4 Installation - closecoupled and vertical pumps
Close-coupled
A close-coupled pump may be mounted horizontally or in a vertical position provided motor is above
pump. The unit should be bolted to a concrete foundation or an adequately supported structure, substan-
tial enough to absorb any vibration and to form a permanent rigid support for the unit. All units have hold-
down bolt holes in the motor feet and pump/adapter feet. Depending upon the motor frame, the pump or
adapter feet may be higher or lower than the motor feet. Shim as required, then bolt all feet securely to
support or foundation. Since the pump is mounted on the motor, permanent alignment is "built in". No
subsequent alignment is necessary.
Vertical
Vertical pumps may be mounted directly on a pit, using either the pump support plate only or in conjunc-
tion with a pit or tank cover. The units are shipped completely assembled except for motor, pit cover (if
any), and float controls. Check all bolts and nuts on the entire unit to make sure they are securely tight-
ened. Connect float and controls as shown on
6.4 Sectional View and Parts List on page 41
Installation must be done with care to avoid damage and ensure proper operation. It is recommended
that a man be stationed inside the pit, whenever possible, to assist in the initial installation.
Lower the assembled pump (less motor) carefully into the pit. Guide unit carefully so that it does not
strike sides of pit. When unit is in place, level the support plate. Shim under support plate as required.
Pump must hang perfectly vertical to avoid placing a bending stress on the unit.
The support plate should be bolted to an adequately supported structure, substantial enough to absorb
any vibration and to form a permanent, rigid support for the unit.
Place motor on motor support and tighten bolts (with lock washers) snugly.
Alignment of the coupling is of extreme importance for trouble-free mechanical operation. Check for
alignment by laying a straight edge across coupling hubs at four points 90° apart. See Fig. 2. When the
straight edge rests evenly at all four points, the coupling is aligned.
Figure 2:
The machined faces of the motor support and motor will provide angular alignment. However, any foreign
material or burrs on the surface will destroy this alignment. Make sure surfaces are clean and smooth.
2.3 Location
3107 Installation, Operation and Maintenance Instructions
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