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    5 Starting and Stopping Procedure For Pump

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    Дмитро
    This document provides guidance on starting and stopping procedures for pumps. It lists 21 steps to follow when starting a pump, such as priming it, checking alignments, ensuring the pump is filled with water, and monitoring pressure and amperage once started. When stopping a pump, it instructs securing the line, checking for leaks and overheating, and getting approval before stopping the pump. Following these procedures helps start and stop pumps safely and properly.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd

    5 Starting and Stopping Procedure For Pump

    Uploaded by

    Дмитро
    28 views2 pages
    This document provides guidance on starting and stopping procedures for pumps. It lists 21 steps to follow when starting a pump, such as priming it, checking alignments, ensuring the pump is filled with water, and monitoring pressure and amperage once started. When stopping a pump, it instructs securing the line, checking for leaks and overheating, and getting approval before stopping the pump. Following these procedures helps start and stop pumps safely and properly.

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    5_STARTING_AND_STOPPING_PROCEDURE_FOR_PUMP

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    This document provides guidance on starting and stopping procedures for pumps. It lists 21 steps to follow when starting a pump, such as priming it, checking alignments, ensuring the pump is filled with water, and monitoring pressure and amperage once started. When stopping a pump, it instructs securing the line, checking for leaks and overheating, and getting approval before stopping the pump. Following these procedures helps start and stop pumps safely and properly.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    28 views2 pages

    5 Starting and Stopping Procedure For Pump

    Uploaded by

    Дмитро
    This document provides guidance on starting and stopping procedures for pumps. It lists 21 steps to follow when starting a pump, such as priming it, checking alignments, ensuring the pump is filled with water, and monitoring pressure and amperage once started. When stopping a pump, it instructs securing the line, checking for leaks and overheating, and getting approval before stopping the pump. Following these procedures helps start and stop pumps safely and properly.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    SCHOOL OF MARITIME STUDIES Form no : 08/02

    Date : 15/02/2012
    VELS UNIVERSITY Issue no : 02/12
    THALAMBUR Rev. no : 00

    STARTING AND STOPPING PROCEDURE FOR PUMP

    AIM:

    To learn the precaution and checks for starting and stopping of the pump.

    CHECKS AND PRECAUTION FOR WHILE STARTING A PUMP

    1. Before starting a pump check the load on the generator and check the lubricating oil for bearing and
    mechanical seal if required fill the oil in the pot.

    2. Then check to see that the shafts of the pump motor aligned and the flexible coupling adjusted.

    3. If the unit is belt-driven, sheave (pulley) alignment and belt adjustment should be checked.

    4. Rotate the shaft with hand to ensure shaft is rotating freely without any obstruction.

    5. Turn on the motor just long enough to see that it turns the pump in the direction indicated by the
    rotational arrows marked on the pump.

    6. If separate water seal units or vacuum primer system are used, these should be started. Finally, make sure
    lines are open. Sometimes there is an exception.

    7. The pump should not be run without first having been primed.

    8. To prime a pump, the pump must be completely filled with water or waste water. In some cases,
    automatic primer is provided. If they are not, it necessary to vent the casing. Most pumps provided with a
    valve to accomplish this.

    9. Allow the trapped air to escape until the water flows from the vent, then replace the vent capping the case
    of suction lift applications, the pump must be filled with water unless a self-primer is provided.

    10. In nearly every case, you may start the pump with the discharge valve open.

    11. Exceptions:

    A. water hammer or velocity disturbances.

    B. motor does not have sufficient margin of safety or power.

    12. Sometimes there are no check valves in the discharge line. In this case (without exception of positive
    displacement pumps), it is necessary to start the pump and then open the discharge lines.

    13. Where there are common discharge headers, it is essential to start the pump and then open the discharge
    valve.
    SCHOOL OF MARITIME STUDIES Form no : 08/02
    Date : 15/02/2012
    VELS UNIVERSITY Issue no : 02/12
    THALAMBUR Rev. no : 00

    14. A positive displacement pump (reciprocating or progressive cavity types) should never be operated
    against a closed discharge line.

    15. While starting the pump control should be in manual mode, then start the pump and check the pump
    suction and discharge pressure and motor amperage.

    16. After starting the pump again check to see that the direction of rotation is correct.

    17. Packing gland boxes (stuffing boxes) should be observed for slight leakage (approximately 60 drops per
    minute).

    18. Check to see that the bearings do not overheat from over or under lubrication.

    19. The flexible coupling should not be noisy, if it is the noise may be caused by misalignment or improper
    clearance or adjustment.

    20. Check to be sure pump foundation bolt is tight.

    21. Compare delivered pump flows and pressure with pump performance curve. If pumps delivery falls
    below performance curves, look for obstruction in the pipe lines. Inspect the piping for leaks.

    22. Once the pump running at the satisfactory condition, change the control should be in auto mode and
    check standby indication of the other pump.

    CHECKS AND PRECAUTION FOR WHILE STOPPING A PUMP

    1. Before stop the pump conform to duty engineer for which pump want stop.
    2. Change the control to manual for running and stand by pump.
    3. Stop the pump from the local starting panel and secure the line.
    4. After stopping the pump, check the surrounding for any leakages, and check the pump casing and motor
    overheated.

    RESULT:

    Thus the starting and stopping procedure of pump is studied.

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