Related Manuals for EBARA GS Series
Summary of Contents for EBARA GS Series
- Page 1 End Suction Centrifugal GS Series Operating Instructions, Installation & Maintenance Manual EBARA Pumps Americas Corporation...
-
Page 3: Table Of Contents
End Suction Centrifugal GS Series Contents 1. INTRODUCTION.............................4 2. SAFETY..............................4 PREPARATION AND TRAINING OF STAFF MAINTENANCE 3. TRANSPORT AND STORAGE......................5 4. SPECIFICATIONS..........................5 5. OPERATING LIMITS..........................6 6. INSTALLATION............................7 INSTALLATION POINT LIFTING CEMENTED BASE PIPES ALIGNMENT ELECTRICAL SYSTEM 6.6.1 ELECTRICAL CONNECTION 6.6.2 ELECTRICAL MAINTENANCE 7. -
Page 4: Introduction
GS Series 1. INTRODUCTION Thank you for choosing this EBARA GS model pump. This operating manual describes the correct installation, operation and maintenance procedures of the product. EBARA pays great attention to the manufacturing of its products so that their use by end-users may be as safe as possible. However, using this pump improperly may reduce its operating performance and lead to personal injury and damage to property. -
Page 5: Preparation And Training Of Staff
EBARA or from the distributor of this equipment. MAINTENANCE No technical or structural changes to the equipment are permitted without prior approval from EBARA. Only genuine spare parts and accessories authorized by EBARA are suitable for meeting safety standards. Rebuilding, modifying or using other spare parts may lead to the invalidation of your warranty. -
Page 6: Operating Limits
Altitude: the altitude where the pump is installed must not exceed 1000m/3300ft. If the conditions of use are different from those indicated, EBARA must be notified of these conditions; such as installation outdoors or in places open to the public; any temperature, humidity, and altitude values other than those described;... -
Page 7: Installation
End Suction Centrifugal GS Series 6. INSTALLATION INSTALLATION POINT (1) Install the equipment in an easily accessible place in order to carry out overhauls and maintenance. (2) Prohibit access to unauthorized persons by using related closure points. (3) Place the equipment as close as possible to the water supply, making sure that the difference in height between the water surface and the pump shaft is minimal and that the length of the suction pipe is as short as possible. -
Page 8: Pipes
End Suction Centrifugal GS Series Generally, an incorrect cement base is the cause of premature failure and this invalidates the warranty period. PIPES The installation must be done according to the arrangement shown in the Figure: Pump Motor Mount Elastic sleeve... - Page 9 End Suction Centrifugal GS Series 5. Suction systems: - The bottom end of the suction pipe must remain submerged and at a depth of at least twice the diameter of the pipe (2D) and at a distance from the bottom of 1 time to 1 and a half times the diameter (1~1.5 D).
-
Page 10: Alignment
End Suction Centrifugal GS Series ALIGNMENT Pumps supplied with motors are connected to these through a simple elastic coupling or with a spacer. The pumps come on the market after being aligned within the production center; nevertheless, during installation, the top of the coupling assembly usually becomes misaligned due to anchoring with anchor pins. -
Page 11: Electrical System
End Suction Centrifugal GS Series If the pump was purchased without a motor, but the intention is to connect one during installation, you will need to correct the shift of the coupling by inserting a plate under the feet of the motor, by adjusting the disparity according to the range shown in the Figure. -
Page 12: Electrical Maintenance
End Suction Centrifugal GS Series 6.6.2 ELECTRICAL MAINTENANCE Any work on the motor must be carried out with the appliance switched off and after disconnecting the mains power supply. - Check on a regular basis that the requirements regarding installation and electrical connections are complied with. -
Page 13: Starting The Pump
End Suction Centrifugal GS Series STARTING THE PUMP 1. Shut off the main delivery valve. Open the suction valve if it is closed. 2. Turn on and off the switch to start the motor once or twice, to ensure that there are no faults in the startup. -
Page 14: Precautions During Operation
End Suction Centrifugal GS Series PRECAUTIONS DURING OPERATION 1. Operating the pump for a long period of time with the delivery valve closed may cause damage to some of the pump components due to overheating inside the pump. 2. Too many stops and starts can cause damage to the pump. Limiting the number of starts is recommended in line with the following: N ≤... -
Page 15: Troubleshooting
End Suction Centrifugal GS Series TROUBLESHOOTING Although the equipment usually functions according to the user’s requirements, in some cases its operation may not come up to expectations due to problems with the system or the power supply. The following table... - Page 16 End Suction Centrifugal GS Series Fault Causes Measures to be taken - Leakage in the delivery pipe. - Check and repair. - Impeller worn. - Check the impeller. - Significant head losses in the - Review the project. Low flow rate continued system.
- Page 17 End Suction Centrifugal GS Series Fault Causes Measures to be taken - Fault in installation. - Check installation. - Bearings damaged. - Replace the bearings. - Flow rate too high. - Reduce the aperture of the delivery valve. - Flow rate too low.
- Page 18 End Suction Centrifugal GS Series Causes Measures to be taken Fault - Operation without a phase. - Check the power supply. - Power surges. - Correct the power surges. - Friction between the rotor and - Align and/or replace the bearing.
-
Page 19: Residual Risks
End Suction Centrifugal GS Series RESIDUAL RISKS The use and maintenance of the following pieces of equipment may lead to risks beyond the capacity of the manufacturer and, therefore, the user must pay the utmost attention to maintenance work and the handling of the equipment. -
Page 20: Construction
End Suction Centrifugal GS Series 9. CONSTRUCTION GSU Standard Construction Parts Reference REVISIONS DESCRIPTION DATE APPROVED 120-5 120-1 120-2 Num. Name Quant. 120-1 Casing 120-2 Pump Guard Casing Cover 120-4 Impeller 120-6 Shaft 039-1 120-3 137-1 120-7 039-2 39-1 137-2... - Page 21 UNLESS OTHERWISE SPECIFIED GS32-125 MACHINING TOLERANCE FABRICATION TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF EBARA PUMPS AMERICAS CORPORATION. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN WHOLE NUMBER 0.1" UP TO 18"...
-
Page 22: Dismantling And Fitting
End Suction Centrifugal GS Series 10. DISMANTLING AND ASSEMBLY Assembly, disassembly, and repair of the pump, should only be performed by specialist maintenance technicians. Otherwise, error by personnel, can result in serious physical injury and/ or equipment damage. 1. Before performing any installation or maintenance tasks: - Disconnect and lock-out power to the driver.