Goulds Pumps 3700 Installation, Operation And Maintenance Manual
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Goulds Pumps 3700 Installation, Operation And Maintenance Manual

Api type oh2 / iso 13709 1st and 2nd ed. / api 610 8/9/10/11th ed.
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Installation, Operation,
and Maintenance Manual
Model 3700, API Type OH2 / ISO 13709 1st
and 2nd Ed. / API 610 8/9/10/11th Ed.

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Summary of Contents for Goulds Pumps 3700

  • Page 1 Installation, Operation, and Maintenance Manual Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed.

  • Page 3: Table Of Contents

    Preparation for startup ......................37 Remove the coupling guard ....................38 Check the rotation - Frame Mounted ..................39 Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 4 Post-assembly checks ...................... 107 Assembly references ......................107 Troubleshooting ........................111 Operation troubleshooting ....................111 Alignment troubleshooting ....................112 Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 5 Parts Listings and Cross-Sectionals ................. 113 Parts list ..........................113 Local ITT Contacts ......................115 Regional offices ........................115 Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 6: Introduction And Safety

    ITT representative. Always specify the exact product type and identification code when requesting technical information or spare parts. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 7: Safety

    Hazard level Indication A hazardous situation which, if not avoided, will result in death or serious injury DANGER: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 8: Environmental Safety

    For electrical installation recycling requirements, consult your local electric utility. Recycling guidelines Always follow local laws and regulations regarding recycling. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 9: User Safety

    2. Rinse the eyes with eyewash or running water for at least 15 minutes. 3. Seek medical attention. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 10: Product Approval Standards

    All users must know about the risks of electric current and the chemical and physical characteristics of the gas and/or vapor present in hazardous areas. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 11: Product Warranty

    • Only Ex-approved spare parts and accessories authorized by ITT are used in Ex-approved products. Limitations The warranty does not cover faults caused by these situations: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 12 ITT products are high-quality products with expected reliable operation and long life. However, should the need arise for a warranty claim, then contact your ITT representative. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 13: Transportation And Storage

    A base-mounted pump Use slings under the pump casing and the drive unit, or under the base rails. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 14 Transportation and Storage Examples Figure 1: Example of a proper lifting method Figure 2: Example of a proper lifting method Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 15: Storage Guidelines

    Upon receipt/short-term (less than six months) • Store in a covered and dry location. • Store the unit free from dirt and vibrations. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 16: Frostproofing

    The pump is frostproof. Lifted out of a liquid into a temperature below The impeller might freeze. freezing Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 17: Product Description

    • Impeller bolt with a lockwasher • Impeller nut with a locking set screw Table 3: Impeller 3700/3710 3700LF/3703 Enclosed Impeller Semi-open Impeller Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 18 API-610 11th Edition (ISO 13709) requirements. Direction of rotation The shaft rotates counterclockwise when viewed from the drive end. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 19: Nameplate Information

    Rated impeller diameter MAX. DIA. Maximum impeller diameter STD. DIM. Standard ANSI dimensional code MAT'L Material of construction Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 20 Figure 9: ATEX nameplate Nameplate field Explanation Group 2 Category 2 Pump can be used when gas and dust are present Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 21 If they are not compatible, do not operate the equipment and contact an ITT representative before proceeding. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 22: Installation

    • The location and size of the foundation bolt holes must match those shown on the assembly drawing provided with the pump data package. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 23: Baseplate-Mounting Procedures

    2. Thoroughly clean all baseplate surfaces that will come in contact with grout. Make sure to use a cleaner that will not leave residue. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 24: Prepare The Foundation For Mounting

    Make sure that the distance between the baseplate and the foundation surface is between 19 mm | 0.75 in. and 38 mm | 1.50 in. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 25: Install The Pump, Driver, And Coupling

    2. Mount the driver on the baseplate . Use applicable bolts and hand tighten. 3. Install the coupling. See the installation instructions from the coupling manufacturer. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 26: Pump-To-Driver Alignment

    After the first run This ensures correct alignment when both the pump and the driver are at operating temperature. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 27: Permitted Indicator Values For Alignment Checks

    Attach one indicator (P) so that the indicator rod comes into contact with the perimeter of the driver coupling half (Y). This indicator is used to measure parallel misalignment. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 28: Pump-To-Driver Alignment Instructions

    Figure 14: Example of incorrect vertical alignment (side view) 4. Repeat the previous steps until the permitted reading value is achieved. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 29 The pump coupling half (X) is lower than the driver coupling half (Y). Remove shims of a thickness equal to half of the indicator reading value under each driver foot. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 30 Figure 17: Example of incorrect horizontal alignment (top view) 5. Repeat the previous steps until the permitted reading value is achieved. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 31: Grout The Baseplate

    When you pour the grout, remove air bubbles from it by using one of these methods: • Puddle with a vibrator. • Pump the grout into place. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 32 7. Remove the leveling jackscrews after the grout hardens in order to remove any stress points. 8. Tighten the foundation bolts. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 33: Piping Checklists

    0.03 in./in. of the flange diameter. Concentric You can easily install the flange bolts by hand. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 34: Suction-Piping Checklist

    After a period of time (24 hours mini- mum) system flushing should be com- plete and the suction strainer can be removed. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 35 The correct distance between the inlet flange of the pump and the closest elbow must be at least five pipe diameters. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 36: Discharge Piping Checklist

    This protects the pump from surges and water the system, check that cushioning de- hammer. vices are used. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 37: Bypass-Piping Considerations

    Consider an automatic recirculation control valve or solenoid-operated valve if a constant bypass (minimum-flow orifice) is not possible. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 38: Auxiliary-Piping Checklist

    Re-check the alignment to make sure If pipe strain exists, then correct the piping. that pipe strain has not caused any misalignment. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 39: Commissioning, Startup, Operation, And Shutdown

    This prevents rapid vaporization of the pumped fluid. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 40: Remove The Coupling Guard

    3. Driver 6. Remove the remaining nut, bolt, and washers from the pump half of the coupling guard. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 41: Check The Rotation - Frame Mounted

    6. Lock out power to the driver. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 42: Couple The Pump And Driver

    Refer to driver/coupling/gear manufacturers IOM for specific instructions and recommenda- tions. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 43: Coupling Guard Assembly

    5. 3/8 in. washer 6. 3/8-16 x 2 in. hex head bolt, 3 required Figure 20: Required parts Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 44 Position the opening (flange) so that it does not interfere with the piping but still allows for access when you install the bolts. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 45 3. Bolt This figure shows an assembled unit: 1. Driver 2. Coupling guard half Figure 23: Coupling guard Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 46 8. Repeat steps 3 through 5 for the rear end of the coupling guard half, except that you hand tighten the nut. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 47 If the coupling hub diameter is larger than the diameter of the opening in the deflector- fan guard support, then remove the coupling hub. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 48 Position the thrust deflector fan approximately 0.03 in. (0.8 mm) from the thrust bearing end cover and firmly tighten the deflector set screw. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 49 1. Rear coupling guard half 2. Annular groove 3. Deflector fan guard 4. Driver Figure 29: Rear coupling-guard half installation Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 50 3. Bolt This figure shows an assembled unit: 1. Driver 2. Coupling guard half Figure 31: Assembled unit Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 51 10. Repeat steps 5 through 7 for the rear end of the coupling guard half, except that you hand tighten the nut. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 52: Bearing Lubrication

    The inlet and outlet connections are located on the top and bottom of the bearing frame, respectively. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 53 Fill the watchdog reservoir using a funnel. c) Verify o-ring is on the Watchdog oiler spout. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 54 Lubricate the bearings after a shutdown period 1. Flush out the bearings and bearing frame with a light oil to remove contaminants. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 55: Shaft Sealing With A Mechanical Seal

    15 psi greater than the seal chamber pressure. The injection rate must be 2 to 8 lpm | 0.5 to 2 gpm. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 56: Pump Priming

    5. Close the outside supply line. This illustration is an example of priming the pump with a foot valve and an outside supply: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 57 This illustration is an example of priming the pump with a foot valve using a bypass around the check valve: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 58: Other Methods Of Priming The Pump

    • On frame mounted units, ensure that the oil level is correct prior to starting pump. Close coupled pumps do not have oil lubricated bearings. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 59: Pump Operation Precautions

    • The oil rings are properly positioned in the grooves on the shaft. • The oil rings are turning. • The oil rings are throwing oil. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 60 Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump and any auxiliary equipment. Failure to do so can cause liquid to freeze and damage the pump. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 61: Shut Down The Pump

    1. Slowly close the discharge valve. 2. Shut down and lock out the driver to prevent accidental rotation. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 62: Make The Final Alignment Of The Pump And Driver

    Insert the pins deep enough that only the threaded portion is exposed when the pin is fully seated. 4. Seat the taper pins firmly in the holes with a hardwood block or soft-faced hammer. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 63 Always remove the dowel pins before removing the casing. Failure to do so can result in casing damage. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 64: Maintenance

    If the pump performance does not satisfy your process requirements, and the process requirements have not changed, then perform these steps: 1. Disassemble the pump. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 65: Bearing Maintenance

    For other types of mechanical seals, refer to the instructions provided by the seal manufacturer for installation and setting. Before you start the pump Check the seal and all flush piping. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 66: Disassembly

    • Drill • Feeler gauges • Induction heater • Lifting sling • Micrometer • Open end wrenches • Press Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 67: Drain The Pump

    You can use penetrating oil if the adapter to the casing joint is corroded. Seal chamber cover Jackscrew Figure 40: Jackscrew tightening Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 68: Remove The Coupling Hub

    1. Loosen the set screw at the end of the impeller nut. 2. Loosen and remove the impeller nut. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 69: Remove The Impeller (3703)

    2. Loosen and remove the impeller nut. The impeller nut has left-hand threads. Shaft 198A Set screw Impeller nut 443A Impeller spacer Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 70: Remove The Impeller (3700Lf)

    Save the spacer for reassembly unless it is damaged. Remove the seal-chamber cover 1. Loosen and remove the gland stud nuts. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 71 7. Guide the seal-chamber cover over the end of the shaft once the cover releases from the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 72: Remove The Optional Water-Jacket Cover

    The thrust fan for the SA and MA pumps sits on the coupling diameter. c) Slide the thrust fan off the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 73 2. Loosen and remove the thrust-bearing end cover and bearing-frame screws. 3. Pry the thrust-bearing end cover thrust deflector out of the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 74 5. Remove the two oil ring retainers and the oil ring inspection plugs from the top of the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 75 SX, MX, LA, LX, XLA, and XLX pumps have two oil rings. SA and MA pumps have one oil ring. d) Press or pull the radial bearing from the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 76 Figure 50: Radial-bearing end cover and radial deflector with gasket (or radial deflector) removal 11. Remove any remaining plugs and fittings. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 77: Preassembly Inspections

    • Check and clean the impeller bore diameter. • Check the impeller balance. Rebalance the impeller if it exceeds the ISO 1940 G1.0 criteria. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 78 Inspection must include the following items: • Bearing end covers (109A) and (119A) • INPRO radial deflector (123) and thrust deflector (123A) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 79: Shaft Replacement Guidelines

    Check the shaft surface for damage, especially in areas indicated by the arrows in the following figure. Replace the shaft if it is damaged beyond reasonable repair. Figure 53: Shaft inspection Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 80: Bearings Inspection

    Measure all wear ring diameters and then calculate the diametrical wear ring clearances. See the Minimum running clearances table for more information. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 81 Figure 54: Casing wear ring Impeller Impeller wear ring Impeller wear ring (No Requirement for 3700LF) Figure 55: Impeller wear ring Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 82 Dry ice and other chilling substances can cause physical injury. Contact the supplier for information and advice for proper handling precautions and procedures. (Not applicable for 3700LF) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 83 4. Chill the new casing wear ring using dry ice or another suitable chilling substance and install the ring into the casing fit. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 84 6. Check the casing wear ring runout and distortion: a) Measure the bore at each set screw location with inside micrometers or vernier calipers. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 85 Mount the dial indicator. b) Rotate the shaft so that the indicator rides along the casing-side impeller wear-ring surface for 360°. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 86: Seal-Chamber Cover Inspection And Replacement

    • Ensure all gasket/O-ring sealing surfaces are clean and have no damage that would prevent sealing. • Ensure that all cooling (where applicable), flush, and drain passages are clear. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 87 Figure 63: Seal-chamber cover bushing replacement 2. Install the new seal-chamber cover bushing: a) Thoroughly clean the bushing fit in the seal-chamber cover. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 88: Bearing-Frame Inspection

    If any bores are outside the measurements in the Bearing fits and tolerances table, replace the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 89: Bearing Fits And Tolerances

    (120.000) (130.000) (160.000) (180.000) 3.5427 4.3301 3.9363 4.7238 5.1174 6.2982 7.0856 (89.985) (110.022) (99.985) (119.985) (129.982) (159.975) (179.975) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 90: Reassembly

    Magnetism attracts ferritic objects to the impeller, seal, and bearings which can result in excessive heat generation, sparks, and premature failure. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 91 Maximum torque values for 3700 3910 fasteners table. e) Bend a tang of the bearing lockwasher into a slot of the locknut. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 92 Press the radial INPRO oil seal into the bearing frame and make sure that the expulsion part is at the 6 o'clock position and is properly seated. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 93 Coat the outer races of the bearings with a compatible oil. b) Coat the internal bearing surfaces of the bearing frame with a compatible oil. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 94 7. Replace the oil-ring inspection connection plugs. 8. Replace the two oil-ring retainers. The screw should bottom against the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 95: Assemble The Frame

    Figure 70: Bearing frame assembly 2. Install the thrust-bearing end cover over the shaft and onto the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 96 Ensure that the O-ring is not damaged while it enters the bearing-frame bore. 8. Perform the following based on whether or not your power end has the optional air-cooling package: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 97 234D Thrust deflector-fan guard support 496Q Support screws Figure 72: Power end assembly 9. Check the following runouts: Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 98 0.050 mm | 0.002 in., then determine the cause and correct it. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 99 11. If your power end has the optional water cooling package, install the finned-tube cooling assembly into the bearing frame. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 100: Install The Optional Water-Jacket Cover

    3. Insert the water jacket cover with O-rings into the fit in the seal-chamber cover. Make sure that the water jacket cover enters uniformly and that the O-rings are not damaged. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 101: Install The Seal-Chamber Cover

    Torque the bolts to values shown in the Maximum torque values for 3700 fasteners table. 5. Check the seal-chamber cover face runout: a) Mount the dial indicator on the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 102 7. Check the seal-chamber cover wear-ring runout: a) Mount the dial indicator on the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 103 Figure 77: Seal-chamber cover wear-ring runout 8. Check the seal-chamber face runout: a) Mount a dial indicator on the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 104 If the total indicator reading is greater than 0.005 in. (0.125 mm ), determine the cause and correct it. Figure 79: Seal-chamber lock (register) runout Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 105: Install The Cartridge-Type Mechanical Seal And Seal-Chamber Cover

    Install the gland stud nuts and tighten evenly to the torque values shown in the Maximum torque values for 3700 fasteners table. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 106: Determining Impeller Spacer Thickness (Applicable For 3703/3700Lf)

    The key should be at the top (12 o’clock) position for the impeller installation. 3. Install the impeller on the shaft. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 107: Install The Impeller (3700Lf)

    2. Make sure that the hub is flush with the end of the shaft or to the mark scribed during disassembly. Refer to coupling manufacturer’s instructions for assistance. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 108: Install The Back Pull-Out Assembly In The Casing

    7. Verify that the shaft turns freely. If you detect any rubbing or excessive drag, then determine the cause and correct it. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 109: Post-Assembly Checks

    • S-8 • S-8N • S-9 • C-6 • A-8 • A-8N • D-1 • Modified A-8 (non-API material) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 110 138 Nm | 198* (Appli- 102 ft-lbs cable for 7/8" - 9 329 Nm | 3700LF 243 ft/lbs Only) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 111 • Casing wear ring (164) (Applicable for 3700/3710) • Finned-tube cooling assembly (494) • Impeller nut (304) (Applicable for 3700/3710/3703) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 112 • Thrust bearing end-cover shim pack (390C) • Water jacket cover O-rings (412S and 497T) • Impeller spacer (443A) (Applicable for 3703/3700LF) Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 113: Troubleshooting

    Rotating parts are rubbing against each other. Check the parts that are wearing for proper clearances. The impeller clearance is too tight. Adjust the impeller clearance. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 114: Alignment Troubleshooting

    Replace the shaft. excessive. (not applicable on 3700LF) The wear ring was machined improperly. Replace or re-machine the impeller. Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 115: Parts Listings And Cross-Sectionals

    370P Screw, radial bearing end cover 2210 Lockwasher, bearing Steel 390C Shim pack, thrust bearing end 304SS cover Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 116 4140 steel 2239 A193 Grade B7 316LSS 2256 A193 Grade B8MLN 4140 steel 2285 A194 Grade 2 H Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...

  • Page 117: Local Itt Contacts

    Middle East and Africa ITT - Goulds Pumps +30 210-677-0770 +30 210-677-5642 Achileos Kyrou 4 Neo Psychiko 115 25 Athens Greece Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance Manual...
  • Page 118 Visit our website for the latest version of this document and more information: www.gouldspumps.com Goulds Pumps 240 Fall Street Seneca Falls, NY 13148 Form IOM.3700.en-US.2018-01 © 2018 ITT Corporation The original instruction is in English. All non-English instructions are translations of the original instruction.

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