background image

11

EBARA 

PUMPS AMERICAS CORPORATION

www.pumpsebara.com

(t) 803.327.5005 

(f) 803.327.5097

rev. 03/22

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.

The alignment operation is achieved by removing the coupling guard, although this will need to be refitted 

carefully before starting up the pump.

The size of the coupling depends on the power and speed of the motor connected to the pump. For further 

information contact EBARA.

6.6 

ELECTRICAL SYSTEM

Check that the motor is cooled properly, by leaving the air inlets and outlets unobstructed. Our recommendation 

is to install the equipment in a ventilated place away from any heat source.

The condensate drainage outlets must be located in the lower part of the motor. The drainage caps can 

only be removed when the motor is protected from the water.

6.6.1  ELECTRICAL CONNECTION

All electrical connections of the equipment must be carried out by qualified personnel with the power supply 

switched off.

- Use power supply cables that are adequately sized to carry the maximum current absorbed by the 

motor, in addition to the margin set by local requirements; this will avoid any overheating and/or voltage 

drops (voltage drops must be less than 5% during the start-up phase).

- Make sure the cables reach the terminal box with a curve that prevents water from getting in and 

running over them.

- The contact surfaces of the connections must be clean and protected against rust. Do not place any 

washers or nuts between the terminals on the motor and those providing access to the mains.

- Check the airtight sealing of the cable gland to ensure the degree of protection indicated on the 

nameplate.

- Avoid any mechanical stress being transferred to the motor terminals.

- Comply with the current and frequency limits indicated on the nameplate of the motor.

- A switch must be installed to prevent any accidents involving electrical discharges, and overload

 protection against power surges for motors with the aim of avoiding any damage due to overheating.

Summary of Contents for GS Series

Page 1: ...End Suction Centrifugal GS Series Operating Instructions Installation Maintenance Manual EBARA Pumps Americas Corporation...

Page 2: ......

Page 3: ...TALLATION 7 6 1 INSTALLATION POINT 6 2 LIFTING 6 3 CEMENTED BASE 6 4 PIPES 6 5 ALIGNMENT 6 6 ELECTRICAL SYSTEM 6 6 1 ELECTRICAL CONNECTION 6 6 2 ELECTRICAL MAINTENANCE 7 OPERATION 12 7 1 BEFORE STARTI...

Page 4: ...as the motor output 2 Double check the equipment to make sure there is no damage generated during the startup and that there are no loose screws or mountings 3 Check that all the accessories spare par...

Page 5: ...safety standards Rebuilding modifying or using other spare parts may lead to the invalidation of your warranty Sound operation of the equipment depends on whether it is being used in accordance with...

Page 6: ...space must be clean and non corrosive or failing that the pollution level must be low and electrically non conductive through condensation Altitude the altitude where the pump is installed must not ex...

Page 7: ...ase so that the axes of the pumps and the motors always remain correctly and securely aligned The cement base must be sufficiently rigid permanent and aligned as well as being located on ground capabl...

Page 8: ...ned and even break 2 Fit any check valves between the pump and the delivery valve in the following cases In very long pipes If the head is high If the operation is automatic When you fill a tank under...

Page 9: ...any shut off valve in this section Unless the installation project indicates something different use the dimensions for the suction pipe and eccentric reduction recommended in this Table The eccentric...

Page 10: ...3 0 13 0 03 WE2 1 85 2 32 0 063 0 04 0 16 0 04 WE3 2 32 2 6 0 063 0 05 0 18 0 05 WE4 2 6 3 13 0 063 0 06 0 22 0 06 WE5 3 13 3 65 0 063 0 06 0 22 0 06 WE10 3 65 4 48 0 094 0 08 0 23 0 08 WE20 4 48 5 42...

Page 11: ...rotected from the water 6 6 1 ELECTRICAL CONNECTION All electrical connections of the equipment must be carried out by qualified personnel with the power supply switched off Use power supply cables th...

Page 12: ...re may be damaged the gasket too tight or there might even be rust inside the pump 3 Check the operating details of the motor which are listed on the nameplate 4 Do not operate the pump before priming...

Page 13: ...ng staff 8 MAINTENANCE Maintenance operations must be performed by qualified personnel an error may lead to damage caused by electrical discharge fire or malfunctions that in turn could lead to an acc...

Page 14: ...p body may fracture if the water inside freezes insulate the pump or remove all the water from the inside 2 If you have any spare pumps you must perform test runs on them on a regular basis and keep t...

Page 15: ...ogged Remove foreign bodies Foreign bodies in the bottom valve Remove foreign bodies Malfunction in the bottom valve Replace the valve Water leakage from the suction pipe Check the suction pipe Air en...

Page 16: ...ct The voltage is low or the imbalance between the phases is high Check the power supply The flow rate is too high or the head is too low Partially shut off the delivery valve Foreign bodies inside th...

Page 17: ...rkshop Cavitation Seek expert advice Vibrations in the piping Reinforce the piping or fit an inverter Defective fitting of the mechanical seal Fit it correctly The mechanical seal is damaged Replace t...

Page 18: ...Poor Star Delta commutation Correct the cabling High power surges Correct the power surges Fan is blocked Release the fan Wrong voltage Change the motor for one with the appropriate voltage The bearin...

Page 19: ...n to maintenance work and the handling of the equipment The following risks need to be considered Operation Risk Measures to be taken Burns Wait until the temperature goes down Check the temperature b...

Page 20: ...e Quant 1 Casing 1 10 Pump Guard 2 11 Casing Cover 1 21 Impeller 1 31 Shaft 1 039 1 Key 1 039 2 Key 1 048 1 Impeller Nut 1 048 2 Impeller Nut 1 51 Bearing Housing 1 845 Bearing Cover 1 849 Ball Bearin...

Page 21: ...ion MUST BE BURR FREE BREAK ALL SHARP EDGES NOTES PROJECTION PROPRIETARY AND CONFIDENTIAL DRAWN CHECKED ENG APPR DATE NAME TITLE SIZE B DWG NO REV WT LBS SCALE 1 24 B BRITTON 2 14 2022 SHEET 1 OF 1 GS...

Page 22: ...proper lifting method The unit and the components can be heavy 3 To prevent injury allow all system and pump components to cool before handling 4 To eliminate possible exposure to any hazardous or tox...

Reviews: