Rules For Safe Installation; Location Of The Unit; Foundation; Alignment Procedures - EBARA TH Series Operating Instructions, Installation & Maintenance Manual

Operating, Installation, and Maintenance

Rules for Safe Installation

LOCATION OF UNIT – The pump should be installed as near to the liquid source as is practical so that
the static suction head (vertical distance from the center line of the pump to water level) is maximized,
and so that a short, direct suction pipe may be used. The capacity of a centrifugal pump is reduced
when the unit is operated under a high suction lift. The piping should be as free from turns and bends as
possible, as elbows and fittings greatly increase friction loss. Place the unit so that it is readily accessible
for service and maintenance and on a solid foundation, which provides a rigid and vibration-free support.
Protect the pump against flooding and excess moisture.
FOUNDATION – Use a level concrete base to provide a rigid base that will minimize deflections and
vibration. Leveling should be done using metallic shims along with anchor bolts. When mounting pump to
foundation, disconnect suction and discharge pipes. Piping cannot be aligned until shaft alignment
procedure is finished. Use a precision level to adjust jackscrews to make sure the suction and discharge
flanges are level before connecting piping.
ALINGMENT PROCEDURES
Alignment
The alignment of the pump and motor is critical for trouble-free mechanical operation. Follow shaft
alignment procedures to prevent catastrophic failure of motor components or unintended contact of
rotating parts. It is imperative the alignment is checked after the pump is leveled on the foundation,
after the assembly has been grouted and after the piping has been connected. Misalignment can
cause noise during operation, assembly vibrations, premature bearing failure, and unit
displacement on the foundation. Failure to check alignment can cause personal injury or
damage to the motor/pump assembly. Always disconnect and lock out power to the motor before
you perform any installation or maintenance tasks.
Rev 10/2018
Figure 3 – Foundation installation
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WARNING
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