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ITT Goulds 3655 Installation, Operation And Maintenance Instructions

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Installation, Operation and
Maintenance Instructions
3655

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Summary of Contents for ITT Goulds 3655

  • Page 1 Installation, Operation and Maintenance Instructions 3655...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents 1 Safety.................................. 4 1.1 Important Safety Notice..........................4 1.2 Safety warnings............................4 1.3 Safety ................................ 5 1.4 General precautions ..........................6 1.5 ATEX Considerations and Intended Use....................9 1.6 Parts ................................ 10 2 Installation................................ 11 2.1 Location..............................
  • Page 4 Table of Contents 7.2 Repacking stuffing box ..........................23 7.3 Replacing shaft sleeve ..........................23 7.4 Wearing rings ............................26 Replacing impeller........................... 26 7.6 Replacing casing ............................. 27 7.7 Spare parts.............................. 27 7.8 Instructions for ordering repair parts ....................... 28 3655 Installation, Operation and Maintenance Instructions...
  • Page 5 Table of Contents Foreword To provide industry with a line of rugged, dependable, enclosed impeller "close coupled" pumps, Goulds developed Model 3655. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct application, proper installation, periodic inspection and maintenance. This instruction book was prepared so operators will understand the construction and the correct method for installing, operating and main- taining these pumps.

  • Page 6: Safety

    ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and operat- Safe installation, operation, and maintenance of ITT Goulds Pumps equipment are an essential end user responsibility. This Pump Safety Manual identifies specific safety risks that must be considered at all times during product life.

  • Page 7: Safety

    Trapped liquid can rapidly expand and result in a violent explosion and injury. ITT Goulds Pumps will not accept responsibility for physical injury, damage, or delays caused by a failure to observe the instructions for installation, operation, and maintenance contained in this Pump Safety Manual or the current IOM available at http://www.gouldspumps.com/literature.

  • Page 8: General Precautions

    Personal injuries will result if procedures outlined in this manual are not followed. ITT Goulds Pumps will not accept responsibility for physical injury, damage or delays caused by a failure to observe the instructions in this manual and the IOM provided with your equip- ment.
  • Page 9 Lift equipment only at specifically identified lifting points or as instructed in the current IOM. Current manuals are available at www.gouldspumps.com/literature_ioms.html or from your local ITT Goulds Pumps sales representative. Note: Lifting devices (eyebolts, slings, spreaders, etc.) must be rated, selected, and used for the entire load being lifted.
  • Page 10 1.4 General precautions WARNING Make sure to properly lubricate the bearings. Failure to do so may result in ex- cess heat generation, sparks, and / or premature failure. CAUTION The mechanical seal used in an ATEX classified environment must be proper- ly certified.

  • Page 11: Atex Considerations And Intended Use

    Maintenance manual (IOM) can cause serious personal injury or damage to the equipment. This in- cludes any modification to the equipment or use of parts not provided by ITT Goulds Pumps. If there is any question regarding the intended use of the equipment, please contact an ITT Goulds representative before proceeding.

  • Page 12: Parts

    The code classification marked on the equipment must be in accordance with the specified area where the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds Pumps sales representative before proceeding.

  • Page 13: Installation

    2 Installation 2 Installation 2.1 Location Pumping unit should be placed as close as practical to the source of supply. Head room and floor space allotted to the pump should be sufficient for inspection and maintenance. 2.2 Foundation The foundation should be substantial in order to absorb any vibration and to form a permanent rigid sup- port for the pump.
  • Page 14 2.4 Piping - general Figure 2: 3655 Installation, Operation and Maintenance Instructions...
  • Page 15 2.4 Piping - general Figure 3: 3655 Installation, Operation and Maintenance Instructions...

  • Page 16: Piping - Suction

    2.5 Piping - suction 2.5 Piping - suction Properly installed suction piping is of extreme importance for trouble-free centrifugal pump opera- tion. The suction pipe should be as large or larger than the pump suction. Increasers, if used, should be eccentric and preferably at or near the pump suction flange.

  • Page 17: Preparation For Operation

    3 Preparation for operation 3 Preparation for operation 3.1 Bearings The bearings are located in and are part of the motor. Refer to separate motor instructions. There are no bearings in the pump. 3.2 Stuffing box These pumps are furnished with packed stuffing box. In the box of fittings accompanying the pump will be found the stuffing box packing.

  • Page 18: Connection Of Piping To Quenching Gland

    3.4 Connection of piping to quenching gland The quenching liquid must be from an outside source and should be piped with flexible pipe into the opening in the upper gland half and out the opening in the lower gland half. A shut-off valve should be installed in the quenching line.

  • Page 19: Starting Pump

    4 Starting Pump 4 Starting Pump 4.1 Priming The pump must always be fully primed - all air removed and the suction pipe full of liquid - before pump is started. If the pump is run dry, the rotating parts within the pump may gall and seize to the stationary parts as they depend on the liquid being pumped for lubrication.

  • Page 20: Operation

    5 Operation 5 Operation 5.1 Stuffing box Stuffing box with packing rings without quenching gland and grease lubricator. Periodically inspect stuffing box to see that there is sufficient leakage to lubricate the packing and main- tain a cool box. Never draw up packing so that the stuffing box heats, as this will cause damage to both packing and shaft.

  • Page 21: Operating At Reduced Head

    5.3 Operating at reduced head 5.3 Operating at reduced head On motor driven pumps, when discharge head or pressure is allowed to drop considerably below the rat- ed point for any length of time, the motor should be watched for heating because the pump capacity in- creases rapidly with reduced head, as does horsepower consumption.

  • Page 22: Trouble Check List

    6 Trouble check list 6 Trouble check list 6.1 No liquid delivered Priming -c asing and suction pipe not completely filled with liquid. Speed too low. Discharge head too high. Check total head (particularly friction loss). Suction lift too high (suction pipe may be too small or long, causing excessive friction loss). Check with vacuum or compound gauge.

  • Page 23: Pump Works Awhile And Then Quits

    6.4 Pump works awhile and then quits Air or gases in liquid. Impeller diameter may be too small. Mechanical defects: Impeller clearance too great. Impeller damaged. Wrong direction of rotation. Be sure pressure gauge is in correct place on discharge nozzle or discharge pipe. When connected to electric motors, check wether motor wiring receives full volatage.
  • Page 24 6.7 Pump is noisy Rotating parts bind, are loose or broken. Bearings worn out. *When connected to electric motors, check whether motor wiring is correct and receives full voltage. When connected to steam turbines, make sure that turbine receives full steam pressure.

  • Page 25: Care And Maintenance

    7 Care and maintenance 7 Care and maintenance 7.1 Lubrication The bearings are located in and are part of the motor. Refer to separate motor instructions for care and maintenance. 7.2 Repacking stuffing box Loosen gland nuts and side gland along shaft out of stuffing box. Remove gland halves from pump. Remove the outer rings of packing with the aid of a packing hook Remove Lantern ring (105) by inserting a wire hook in the slots in the outer edge of the ring and pulling ring from box.
  • Page 26 7.3 Replacing shaft sleeve Sizes - with suction bearing ring only Sizes - with two casing wearing rings 1-1/4 x 1-1/2-5, 1-1/4 x 1-1/2-7, 1-1/4 x 1-1/2-8, 1-1/2 2 x 2-7, 3 x 3-5, 1-1/2 x 2-9, 2 x 2-1/2-9, 2-1/2 x 3-9, 2 x 2-5, 2-1/2 x 2-1/2-6, 4 x 4-7 x 3-7, 3 x 4-7, 4 x 5-7, 5 x 5-7, 6 x 6-9, 2-1/2 x 3-11, 3 x 4-11, 4 x 6-11H, 2-1/2 x 3-13, 3 x 4-13, 4 x 6-13, 4 x...
  • Page 27 7.3 Replacing shaft sleeve Part Name Qty. Material Puller screw Steel Puller plate Steel Impeller puller rods Steel Hex nuts Steel Puller bushing Brass Figure 6: Parts required to make (1) complete impeller puller Part Name Qty. Material Puller screw Steel Puller plate Steel...

  • Page 28: Wearing Rings

    7.4 Wearing rings 7.4 Wearing rings Casing wearing rings are provided for both hubs of the impeller on some sizes and only on the suction hub on others. Refer to Sectional assembly parts and interchangeability chart. These rings allow a small clearance to be maintained between the rotating impeller and the stationary casing wearing rings.

  • Page 29: Replacing Casing

    7.6 Replacing casing Using a soft metal hammer, tap evenly on center of impeller until shaft threads protrude beyond im- peller. Push impeller on the remaining distance with impeller nut (304) and washer (199). 10. Replace suction cover (182) and nuts on studs (356) . Connect suction piping.

  • Page 30: Instructions For Ordering Repair Parts

    7.8 Instructions for ordering repair parts 7.8 Instructions for ordering repair parts Repair orders will be handled with the minimum of delay if the following directions are followed: Give the Model No., Size of the pump and Serial Number. This data can all be obtained from the nameplate.
  • Page 31 Visit our website for the latest version of this document and more information: www.gouldspumps.com ITT - Goulds Pumps Vertical Products Operation 3951 Capitol Avenue City of Industry, CA 90601-1734 Form IOM.3655.en-US.2021-06 ©2021 ITT Corporation The original instruction is in English. All non-English instructions are translations of the original instruction.

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