Thrush 3500 RPM User Manual
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OPERATING AND MAINTENANCE INSTRUCTIONS
FOR BASE MOUNTED END SUCTION
CENTRIFUGAL PUMPS
The THRUSH End Suction Centrifugal Pump has been carefully assembled and factory tested to
provide years of trouble free service. In order to insure the service intended, the following
information is provided to enable proper installation, operation and maintenance of this product.
INSTALLATION
LOCATION
The pump should be located as close to the liquid source as possible so that the suction line can
be short and direct. It should be located in a clean, open area, where it is easily accessible for
inspection, lubrication and repair. Pumps installed in dark, dirty areas or cramped locations are
often neglected which can result in premature failure of both the pump and the driver.
Adequate provisions should be made for electrical wiring to the pump motor. A switch and
overload protection should be installed near the pump unless it is impractical. The electrical
conduit should be positioned in such a way as to preclude the possibility of moisture entering the
conduit or the motor and causing short circuit.
FOUNDATION
The foundation must be sufficiently rigid to absorb any vibration and stress encountered during
pump operation. A raised foundation of concrete is preferable for most floor-mounted pumps.
The raised foundation assures a satisfactory base, protects against flooding, simplifies moisture
drainage and facilitates keeping the area clean.
The pump should be firmly bolted to the foundation, whether it is a raised concrete base,
steelwork wall, or structural member. The mounting bolts or studs should be accurately located
per the applicable THRUSH dimension sheet. Foundation bolts should be enclosed by a sleeve 2
to 4 diameter larger than the bolt to allow movement for proper alignment with the pump mounting
holes. Refer to Figure 1. If the pump is to be mounted on steelwork or other structure, adequate
support should be provided to prevent distortion of the base plate or the structure, which could
produce excessive strain on the pump casing and piping and seriously affect alignment of the
pump and driver.
9636-0400 8/08
Summary of Contents
Page 1 - CENTRIFUGAL PUMPS
OPERATING AND MAINTENANCE INSTRUCTIONS FOR BASE MOUNTED END SUCTION CENTRIFUGAL PUMPS The THRUSH End Suction Centrifugal Pump has been carefully as
Page 2
MOUNTING The pump unit should be set on the foundation, being careful not to damage the threads on the foundation bolts. The flexible coupling halve
Page 3 - Figure 2
ALIGNMENT The pump and driver were accurately aligned at the factory. However, it is impossible to maintain this alignment during shipping and handl
Page 4 - OPERATION
OPERATION CAUTION: CENTRIFUGAL PUMPS SHOULD NEVER BE STARTED OR RUN DRY. OPERATING A PUMP DRY WILL CAUSE SCORING OF THE MECHANICAL SEAL, RESULTING I
Page 5 - MAINTENANCE
MAINTENANCE It is doubtful that the THRUSH pump will ever require complete disassembly; generally only certain components need to be disassembled t
Page 6
12. NOTE: THE MECHANICAL SEAL IS A PRECISION PRODUCT AND MUST BE TREATED AS SUCH. DURING REMOVAL GREAT CARE MUST BE TAKEN TO AVOID DROPPING ANY PART
Page 7
10. Press casing wear ring (39) in casing if change is necessary. Rings should not be hammered into place. Use a press or clamp the parts in a bench
Page 8
THRUSH STANDARD GREASE IS AMERICAN OIL CO, RYCON NO. 2 NLG 1 – 2 OR EQUAL The THRUSH base mounted end suction pumps are quite large and require a con
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