GORMAN-RUPP SELF-PRIMING CENTRIFUGAL PUMPS Installation And Operation Manual Download Page 1

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PUBLICATION NUMBER OM--04760

December 2, 1998

Rev. A 11-20-03

THE GORMAN-RUPP COMPANY

MANSFIELD, OHIO

GORMAN-RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

SELF-PRIMING

CENTRIFUGAL PUMPS

Summary of Contents for SELF-PRIMING CENTRIFUGAL PUMPS

Page 1: ...04760 December 2 1998 Rev A 11 20 03 THE GORMAN RUPP COMPANY D MANSFIELD OHIO GORMAN RUPP OF CANADA LIMITED D ST THOMAS ONTARIO CANADA Printed in U S A eCopyright by the Gorman Rupp Company SELF PRIM...

Page 2: ...ot possibly provide detailed in structions and precautions for every aspect of each specific application Therefore it is the re sponsibility of the owner installer of the pump to ensure that applicati...

Page 3: ...following are used to alert personnel to procedures which require special attention to those which could damage equipment and to those which could be dangerous to personnel Immediate hazards which WIL...

Page 4: ...intenance and repair pump parts and any optional equipment shipped with the pump Before attempting to open or service the pump 1 Familiarize yourself with this man ual 2 Disconnect or shut down the po...

Page 5: ...clothing fingers or tools causing severe injury to person nel If the pump is powered by an electric motor do not operate a non explosion proof motor in an explosive atmo sphere An explosion which may...

Page 6: ...er with the engine governor to gain more power The governor esta blishes safe operating limits that should not be exceeded The maximum contin uous operating speed for the pump is shown on the performa...

Page 7: ...refully read all tags decals and markings on the pump assembly and perform all duties indicated Note that the pump shaft rotates in the required direction d Check levels and lubricate as necessary Re...

Page 8: ...OM 04760 SELF PRIMING CENTRIFUGAL PUMPS PAGE B 2 INSTALLATION...

Page 9: ...acturer s rec ommendations when selecting and applying the pipe dope The pipe dope should be compatible with the liquid being pumped Suction Lines In Sumps If a single suction line is installed in a s...

Page 10: ...OM 04760 SELF PRIMING CENTRIFUGAL PUMPS PAGE B 4 INSTALLATION...

Page 11: ...it your application If the installation involves a flooded suction such as a below ground lift station a pipe union and manu al shut off valve may be installed in the bleed line to allow service of th...

Page 12: ...in the diaphragm chamber settle to the bottom and are flushed out during the next priming cycle NOTE The valve will remain open if the pump does not reach its designed capacity or head Valve closing...

Page 13: ...SELF PRIMING CENTRIFUGAL PUMPS OM 04760 PAGE B 7 INSTALLATION...

Page 14: ...very 90 degrees The coupling is in alignment when the hubs are the same distance apart at all points see Figure 6 Figure 6 Aligning Non Spider Type Couplings Check parallel adjustment by laying a stra...

Page 15: ...to change direction If rotation is incorrect on a single phase motor consult the lit erature supplied with the motor for specific instruc tions The electrical power used to operate the pump is high e...

Page 16: ...p will destroy the seal assembly Add liquid to the pump casing when 1 The pump is being put into service for the first time 2 The pump has not been used for a consider able length of time 3 The liquid...

Page 17: ...o prime within five minutes stop it and check the suction line for leaks After the pump has been primed partially close the discharge line throttling valve in order to fill the line slowly and guard a...

Page 18: ...ure must be reduced to 10 p s i Pump Vacuum Check With the pump inoperative install a vacuum gauge in the system using pipe dope on the threads Block the suction line and start the pump At oper ating...

Page 19: ...Repair manual Bearing overheating can also be caused by shaft misalignment and or ex cessive vibration When pumps are first started the bearings may seem to run at temperatures above normal Con tinued...

Page 20: ...of oil Grease Lubricated Bearings Bearing housings are fully lubricated when shipped from the factory Under normalconditions add No 0 lithium base grease from a grease gun through the grease fitting...

Page 21: ...epairs or alterations have been made un less authorized by Gorman Rupp No warranty is made in respect to engines motors or trade ac cessories such being subject to warranties of their respective manuf...