Thrush GTU User Manual
Thrush Pumps
9636-0510
8/08
OPERATING & MAINTENANCE INSTRUCTIONS
FOR
MODEL GTU END SUCTION CENTRIFUGAL PUMPS
The Thrush End Suction Centrifugal Pumps 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.
Location
The pump 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 in cramped locations are often
neglected which can result in premature failure of both the pump and the motor.
Adequate provisions should be made for electrical wiring to the pump motor. A switch should be
installed near the pump to facilitate service. Single phase motors are provided with built-in overload
protection. Three phase motors must be protected externally. 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 circuits.
Piping
Piping practices directly affect the efficiency and power consumption of pumps. Pay particular
attention to the seemingly insignificant details involved in piping. They make the difference between
a good and a bad installation. BOTH THE SUCTION AND THE DISCHARGE PIPING SHOULD BE
INDEPENDENTLY SUPPORTED NEAR THE PUMP. LIBERAL USE OF PIPE HANGERS AND
SUPPORT BLOCKS WILL PREVENT EXCESSIVE STRAIN ON THE PUMP CASING AND ON
THE PIPE JOINTS. IT IS ESSENTIAL THAT PIPING BE PROPERLY ALIGNED BEFORE
CONNECTION IS MADE. PIPING ALIGNMENT SHOULD NEVER BE ACHIEVED BY FORCE.
THIS COULD PRODUCE STRAIN ON THE PIPING AND THE PUMP CASING.