Goulds Pumps 3700i API610 Installation, Operation And Maintenance Manual
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Goulds Pumps 3700i API610 Installation, Operation And Maintenance Manual

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Installation, Operation, and
Maintenance Manual
Model 3700i API610 / Type OH2

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Summary of Contents for Goulds Pumps 3700i API610

  • Page 1 Installation, Operation, and Maintenance Manual Model 3700i API610 / Type OH2...

  • Page 3: Table Of Contents

    4.5 Grout the baseplate..........................34 4.6 Piping checklists............................35 4.6.1 General piping checklist ........................ 35 4.6.2 Suction-piping checklist......................... 37 4.6.3 Discharge piping checklist......................39 4.6.4 Bypass-piping considerations ....................... 40 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 4 6.5.4 Bearings inspection........................81 6.5.5 Wear rings inspection and replacement ..................82 6.5.6 Bearing-frame inspection ......................89 6.5.7 Bearing fits and tolerances......................91 6.6 Reassembly............................. 92 6.6.1 Assemble the power end....................... 92 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 5 8 Parts List and Cross-Sectionals ........................118 8.1 Parts list..............................118 9 Other Relevant Documentation of Manuals ....................122 9.1 For additional documentation ........................ 122 10 Local ITT Contacts ............................123 10.1 Regional offices........................... 123 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 6: Introduction And Safety

    ITT. If there is any uncertainty regarding the appropriate use of the equipment, please contact an ITT representative before proceeding. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 7: Safety Terminology And Symbols

    Hazard categories Hazard categories can either fall under hazard levels or let specific symbols replace the ordinary hazard level symbols. Electrical hazards are indicated by the following specific symbol: Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 8: Environmental Safety

    For electrical installation recycling requirements, consult your local electric utility. 1.2.2.1 Recycling guidelines Always follow local laws and regulations regarding recycling. 1.2.3 User safety General safety rules These safety rules apply: Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 9 Provide a suitable barrier around the work area, for example, a guard rail. • Make sure that all safety guards are in place and secure. • Make sure that the equipment is properly insulated when it operates at extreme temperatures. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 10: Product Approval Standards

    The faults are reported to an ITT representative within the warranty period. • The product is used only under the conditions described in this manual. • The monitoring equipment incorporated in the product is correctly connected and in use. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 11: Atex Considerations And Intended Use

    Before you start work on the product, make sure that the product and the control panel are isolated from the power supply and the control circuit, so they cannot be energized. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 12 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 13 The impeller clearance setting procedure must be followed. Improperly setting the clear- ance or not following any of the proper procedures can result in sparks, unexpected heat generation and equipment damage. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 14 • Leakage of process liquid may result in creation of an explosive atmosphere. Follow all pump and seal assembly procedures. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 15 ITT should be consulted in this context. • Move equipment to a safe/non ATEX environment for repairs/adjustments or use spark resistant tools and work methods. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 16: Transportation And Storage

    Lifting and handling heavy equipment poses a crush hazard. Use caution during lifting and handling and wear appropriate Personal Protective Equipment (PPE, such as steel- toed shoes, gloves, etc.) at all times. Seek assistance if necessary. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 17 A base-mounted pump Use slings under the pump casing and the drive unit, or under the base rails. Examples Figure 2: Example of a proper lifting method of pump with driver Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 18: Storage Guidelines

    Store the unit free from dirt and vibrations. Long-term (more than six months) • Store in a covered and dry location. • Store the unit free from heat, dirt, and vibrations. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 19: Frostproofing

    Situation Condition Operating The pump is frostproof. Immersed in a liquid The pump is frostproof. Lifted out of a liquid into a temperature below freezing The impeller might freeze. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 20: Product Description

    The impeller is fully enclosed and key driven by the shaft. Impeller nut with a locking screw prevents ax- ial movement: Seal-chamber cover The seal-chamber geometry meets API 610 12th edition standard dimensions. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 21: General Description I-Alert®3 Equipment Condition Monitor

    It tracks vibration, temperature, change in electromagnetic field and run-time hours and wirelessly syncs the data with the i-ALERT Gateway or with a smart phone or tablet using i-ALERT®3 mobile app. More information available on https://www.i-alert.com/products/i-alert3-sensor/ Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 22: Nameplate Information

    IECEx If applicable, your pump unit might have the following IECEx nameplate affixed to the pump and/or baseplate. The nameplate provides information about the IECEx specifications of this pump. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 23 Hydrostatic pressure at 38°C in kilopascals gauge MAX. DES. WORKING PRESS Maximum working pressure at temperature °C in kilopascals gauge Serial number of the pump CONT./ITEM NO. Customer contract or item number Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 24 The code classification marked on the equipment should be in accordance with the specified area where the equipment will be installed. If it is not, please contact your ITT/Goulds representative before proceed- ing. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 25 Ensure the pump driver and all other auxiliary components meet the required area classifica- tion at the site. If they are not compatible, do not operate the equipment and contact an ITT representative before proceeding. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 26: Installation

    If the pump location is overhead, undertake special Consider a consultation with a noise specialist. precautions to reduce possible noise transmission. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 27: Foundation Requirements

    Sleeve-type bolts Item Description Baseplate Shims Foundation Sleeve Bolt Figure 10: Sleeve type bolts J-type bolts Item Description Baseplate Shims or wedges Foundation Bolt Figure 11: J-type bolts Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 28: Baseplate-Mounting Procedures

    If recommended by the grout manufacturer, coat the foundation surface with a compatible primer. 4.2.3 Install the baseplate using jackscrews Tools required: • Anti-seize compound • Jackscrews • Bar stock • Two machinist's levels Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 29 Remove all dirt from the mounting pads in order to ensure that the correct leveling is achieved. Failure to do so can result in equipment damage or decreased performance. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 30: Install The Pump, Driver, And Coupling

    4.4.1 Alignment checks When to perform alignment checks You must perform alignment checks under these circumstances: • The process temperature changes. • The piping changes. • The pump has been serviced. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 31: Permitted Indicator Values For Alignment Checks

    This prevents strain on the piping installations. Make sure that the hold-down bolts for the driver are tight when This keeps the driver stationary since move- you take indicator measurements. ment causes incorrect measurement. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 32: Attach The Dial Indicators For Alignment

    Add shims in order to raise the feet of the driver at the shaft end. • Remove shims in order to lower the feet of the driver at the other end. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 33 The coupling halves are closer together on the right side than the left. Perform one of these steps: • Slide the shaft end of the driver to the right. • Slide the opposite end to the left. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 34 Item Description Shims Figure 16: Example of incorrect vertical alignment (side view) Repeat the previous steps until the permitted reading value is achieved. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 35 A unit is in complete alignment when both the angular indicator (A) and the parallel indicator (P) do not vary by more than 0.05 mm | 0.002 in. as measured at four points 90° apart. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 36: Grout The Baseplate

    Pump the grout into place. Allow the grout to set. Fill the remainder of the baseplate with grout, and allow the grout to set for at least 48 hours. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 37: Piping Checklists

    Pipe strain ad- versely affects the operation of the pump, which results in physical injury and damage to the equipment. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 38 Example: Installation for expansion Correct Incorrect This illustration shows a correct installation for expan- This illustration shows an incorrect installation for expan- sion: sion: Expansion loop/joint Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 39: Suction-Piping Checklist

    0.60. pump. If necessary, make sure that the suction — piping includes a drain valve and that it is correctly installed. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 40 Example: Elbow close to the pump suction inlet Correct Incorrect The correct distance between the inlet flange of the pump and the closest elbow must be at least five pipe di- ameters. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 41: Discharge Piping Checklist

    See Example: Discharge piping equipment for illustra- tions. If increasers are used, check that they are See Example: Discharge piping equipment for illustra- installed between the pump and the check tions. valve. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 42: Bypass-Piping Considerations

    Consult your ITT representative for assistance in sizing a minimum-flow orifice. When a minimum-flow orifice is unavailable Consider an automatic recirculation control valve or solenoid-operated valve if a constant bypass (mini- mum-flow orifice) is not possible. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 43: Auxiliary-Piping Checklist

    Re-check the alignment to make sure that If pipe strain exists, then correct the piping. pipe strain has not caused any misalign- ment. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 44: Commissioning, Startup, Operation, And Shutdown

    Risk of seizure, breach of containment, or explosion. Ensure balance line is installed and piped back to either the pump suction or suction vessel. This prevents rapid vaporization of the pumped fluid. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 45: Remove The Coupling Guard

    Slide the driver half of the coupling guard (508) toward the pump. Remove the nut, bolt, and washers from the driver half (508) of the coupling guard. Remove the driver half (508) of the coupling guard: Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 46: Check The Rotation

    Make sure that everyone is clear, and then jog the driver long enough to determine that the direc- tion of rotation corresponds to the arrow on the bearing housing or close-coupled frame. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 47: Couple The Pump And Driver

    Electrical connections must be made by certified electricians in compliance with all international, national, state, and local rules. • Refer to driver/coupling/gear manufacturer's installation and operation manuals (IOM) for specific instructions and recommendations. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 48 Replace the five outboard end cover cap screws (370N) and torque to the value shown in the 6.6.10 Assembly references on page 109. Remove the three thrust bearing end cover cap screws (370N) shown below. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 49 Position the opening (flange) so that it does not interfere with the piping but still allows for access when you install the bolts. 501B 234A Figure 22: Coupling guard Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 50 Figure 24: Coupling guard motor Place the end plate (234B) over the driver shaft and locate the end plate (234B) in the annular groove at the rear of the coupling guard half (501B). Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 51 Slide the rear coupling guard half towards the motor so that it completely covers the shafts and cou- pling. Figure 26: Slide to fit 10. Repeat Steps 3 through 5 for the center slots in the coupling guard. Firmly tighten all nuts on the guard assembly. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 52 (785D). Screw 4 hex cap screws (569F) into cooling fan shroud threaded inserts. Install the coupling guard per 5.4.1.1 Install the coupling guard on page Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 53: Bearing Lubrication

    Ring oil lubrication Ring oil-lubricated bearings are standard. Bearing housings are supplied with constant-level oilers and sight glasses. Make sure that oil ring properly seated in the grooves in the shaft. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 54 Pure oil and purge oil mist (optional) 3600 6215 7313 2724 1800 6218 7317 3920 1800 6220 7318 3953 Consult factory for any speed that exceeds CDS curve speed Includes bearing frame and Watchdog oiler Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 55 Fill the bearing chamber through the main body of the Watchdog or through the oil filter open- ing until it reaches the optimum fluid level visible in the bullseye sight. Fill the watchdog reservoir using a funnel. Verify o-ring is on the Watchdog oiler spout. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 56 Check that the oil level is correct. The correct oil level is centered in the bulls-eye sight glass, when the pump is not in operation. During operation, bulls-eye sight gives a false oil level reading. Shown is general schematic. Figure 30: Checking oil level Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 57 Remove the oil filter (550A) and the oil filter plug (113Q) from the bearing frame (228). 113Q 428E 550A Figure 32: Oil filter replacement Unscrew the filter (550A), part number K08174A from the plug (113Q), part number K06818A. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 58 Only one o-ring is required, the other is a spare if needed. 113Q 550A Figure 34: New filter installation Screw the oil filter (550A) and the oil filter plug (113Q) back into the bearing frame (228). Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 59 Make sure that pipe threads are clean and apply thread sealant to plugs and fittings. NOTICE: For pure oil mist remove pipe plug (408Z and 408I) and install oil mist plugs (843U and 843V). Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 60: Shaft Sealing With A Mechanical Seal

    Never operate the pump without liquid supplied to the mechanical seal. NOTICE: • Follow seal manufacturer's guidelines for proper seal installation procedures. Shipping Pumps may be shipped with or without a mechanical seal installed. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 61: Connection Of Sealing Liquid For Mechanical Seals

    5.7.1 Prime the pump with the suction supply above the pump Slowly open the suction isolation valve. Open the air vents on the suction and discharge piping until the pumped fluid flows out. Close the air vents. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 62: Prime The Pump With The Suction Supply Below The Pump

    Open the air vent valves in the casing. Open the valve in the outside supply line until only liquid escapes from the vent valves. Close the vent valves. Close the outside supply line. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 63: Other Methods Of Priming The Pump

    Risk of equipment damage due to dry operation. Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop the driver immediately, reprime, and attempt to restart the pump. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 64: I-Alert®3 Equipment Health Monitor

    3 Equipment Health Monitor Installation, Operation and Mainte- nance manual. https://www.i-alert.com/products/i-alert3-sensor/ 5.10 Pump operation precautions General considerations NOTICE: On ring oil-lubricated pumps, remove oil ring viewing port plugs to verify the following: Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 65 • Risk of explosion and serious physical injury. Do not operate the pump below the thermal minimum flow. This can cause excessive heat build-up and vaporization of the pumpage. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 66: Shut Down The Pump

    Disengage the snap fit of the i-ALERT®3 using a flat head tool as shown below: Figure 40: Disengage the battery from the sensor when shutting the pump for an extend- ed period of time Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 67: Reset The I-Alert®3 Health Monitor

    Dowel the pump casing to the baseplate pedestals in order to make sure that you maintain the proper pump position. Drill two holes, one in each casing mounting pad, at the locations provided. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 68 Seat the taper pins firmly in the holes with a hardwood block or soft-faced hammer. NOTICE: Always remove the dowel pins before removing the casing. Failure to do so can result in casing damage. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 69: Maintenance

    Change the oil and oil filter more often if there are adverse atmospheric or other conditions that might contaminate or break down the oil. • Check the shaft alignment, and realign as required. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 70: Bearing Maintenance

    For other types of mechanical seals, refer to the instructions provided by the seal manufacturer for instal- lation and setting. Before you start the pump Check the seal and all flush piping. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 71: Disassembly

    In order to disassemble the pump, you need these tools: • Allen wrenches • Brass drift punch • Cleaning agents and solvents • Dial indicators • Drill • Feeler gauges Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 72: Drain The Pump

    You can use penetrating oil if the adapter to the casing joint is corroded. Figure 41: Jackscrew tightening Remove the back pull-out assembly using a lifting sling through the bearing frame. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 73: Remove The Coupling Hub

    Risk of physical injury from sharp edges. Wear heavy work gloves when handling impellers. Loosen the set screw (198A) at the end of the impeller nut (304). Loosen and remove the impeller nut (304). The impeller nut has left-hand threads. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 74: Remove Venturi Insert (Venturi Pumps Only)

    Clean all gasket surfaces. Clean surfaces prevent the insert gasket (351O) from partially adhering to the case (100) and insert (100W) due to binders and adhesives in the gasket material. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 75: Remove The Seal-Chamber Cover

    This procedure explains how to disassemble a standard ring-oil or optional oil mist-lubricated power end and includes information for the disassembly of these optional features: • Pure oil-mist-lubricated power end • Radial-heat-flinger end • Forced convection cooling Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 76 Loosen Fan set screws (222V) and remove Cooling Fan (392B) from shaft (122). Loosen and remove Thrust Cover Frame Hex Cap Screws (370N). Remove cooling fan shroud support (234D). Go to step 3. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 77 358X 358X Figure 48: Frame cooling removal If your power end has the optional oil sump liquid cooling, then remove the finned-tube cooling as- sembly from the bearing frame. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 78 Loosen and remove the radial end cover to frame hex cap screws (370P) and radial bearing end cover (360). Remove and discard the radial bearing end cover gasket (360). This gasket will be replaced with a new gasket during reassembly. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 79: Guidelines For I-Alert®3 Equipment Health Monitor Disposal

    Wear ring clearances that exceed the values in the Minimum running clearances table NOTICE: When clearances between the rings become excessive (increase by 50%), hydraulic perform- ance decreases substantially. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 80 When clearances between the rings become excessive (increase by 50%), hydraulic perform- ance decreases substantially. NOTICE: Protect machined surfaces while cleaning the parts. Failure to do so may result in equipment damage. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 81 Cartridge mechanical seal replacement Cartridge-type mechanical seals should be serviced by the seal manufacturer. Refer to the instructions from the mechanical seal manufacturer for assistance. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 82: Fastening

    Ensure appropriate use of fasteners during installation or reassembly of the unit. • Use fasteners of the proper size and material only. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 83: Shaft Replacement Guidelines

    Inspect the ball bearings to see if they are loose, rough, or noisy when you rotate them. • Investigate any bearing damage to determine the cause. If the cause is not normal wear, correct the issue before you return the pump to service. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 84: Wear Rings Inspection And Replacement

    Wear ring diameter check Measure all wear ring diameters and then calculate the diametrical wear ring clearances. Refer to Table 10: Minimum running clearances on page 84 for more information. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 85 164 Casing wear ring 222E Wear ring set screw Figure 55: Casing wear ring 101 Impeller 202 Impeller wear ring 203 Impeller wear ring Figure 56: Impeller wear ring Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 86 3.000 to 3.499 0.33 0.013 90 to 99.99 3.500 to 3.999 0.35 0.014 100 to 114.99 4.000 to 4.499 0.38 0.015 115 to 124.99 4.500 to 4.999 0.40 0.016 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 87 When the impeller assembly is supplied as a spare part (impeller with wear rings), the wear rings are machined to the required dimension. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 88 Chill the new casing wear ring (164) using dry ice or another suitable chilling substance and install the ring into the casing fit. Be prepared to tap the ring in place with a wood block or soft-faced hammer. Figure 59: Casing wear ring Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 89 Machine any distortion in excess of 0.08 mm |0.003 in. 222E 222D 222D Figure 60: Seal chamber cover wear ring and throat bushing Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 90 Rotate the shaft so that the indicator rides along the casing-side impeller wear-ring (202) sur- face for 360°. Repeat steps a and b for the wear ring (203) on the seal-chamber cover side. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 91: Bearing-Frame Inspection

    Inspect the inside diameter of bearing bores. If any bores are outside the measurements in the Table 11: Bearing fits and tolerances table (SI units) on page 91 table, replace the bearing frame. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 92 6.5 Preassembly inspections Surface inspection locations This figure shows the areas to inspect for wear on the bearing frame surface. Figure 63: Surface inspection locations Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 93: Bearing Fits And Tolerances

    110.012 4.3312 130.015 5.1187 130.028 5.1192 140.015 5.5124 180.015 7.0872 190.015 7.4809 0.051 0.0020 0.056 0.0022 0.069 0.0027 0.056 0.0022 0.063 0.0025 0.073 0.0029 Clearance 0.013 0.0005 0.015 0.0006 0.028 0.0011 0.015 0.0006 0.015 0.0006 0.015 0.0006 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 94: Reassembly

    Oil-mist lubricated power ends are assembled in the same manner as ring oil-lubricated power ends. Oil rings are not furnished with oiloil-mist lubrication. Disregard any reference to those parts. Assemble the radial bearing (168) onto the shaft (122). The bearings are interference fit. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 95 While the bearings are hot, tighten the locknut by hand with a spanner wrench until the bearing is snug against the shaft shoulder. Allow the bearing assembly to cool slowly to room temperature. Do not rapidly cool the bearings with compressed air or other means. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 96 Install the radial end cover gasket (360) and radial end cover/bearing isolator assembly. Se- frames sizes cure to the frame with cap screws (370P) and tighten evenly to the torque values show in the Maximum torque values for the 3700i fasteners table. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 97 Make sure that the oil rings do not bind or become damaged. Do not force the assembly together. Observe the oil rings through the sight glass in the bearing frame. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 98: Assemble The Frame

    • For runout checks, firmly support the bearing-frame assembly in the horizontal position. Install quantity 2 plugs (408) and quantity 1 plug (408I). Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 99 Being careful to properly align holes, install the thrust-bearing end cover over the shaft and onto the bearing frame. Install and tighten the thrust-bearing end cover and bearing-frame screws (370N) evenly to the tor- que values in the Maximum torque values for 3700i fasteners table. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 100 Maximum torque values for Forced Convection cooling 3700i fasteners table. Verify that the shaft turns freely. 10. Check the following runouts: Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 101 Rotate the shaft so that the indicator rides along the shaft surface for 360°. If the total indicator reading is greater than 0.030mm | 0.001in., then determine the cause and correct it. Bearing-frame face Mount the dial indicator on the shaft. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 102 360°. If the total indicator reading is greater than 0.10 mm | 0.004 in., then disassemble and determine the cause and correct it. Install and tighten any plugs and fittings removed during disassembly, including the oil-drain plug, and watchdog oiler. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 103: Install The Seal-Chamber Cover

    Rotate the shaft so that the indicator rides along the seal-chamber cover face for 360°. If the total indicator reading is greater than 0.13 mm | 0.005 in., determine the cause and correct it. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 104 The impeller and wear-ring clearance setting procedures must be followed. Improp- erly setting the clearance or not following any of the proper procedures can result in sparks, unexpected heat generation, and equipment damage. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 105 Figure 73: Seal-chamber cover wear-ring runout Check the seal-chamber face runout: Mount a dial indicator on the shaft. Rotate the shaft so that the indicator rides along the seal-chamber face for 360°. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 106 Rotate the shaft so that the indicator rides along the seal-chamber lock (register) for 360°. If the total indicator reading is greater than 0.125 mm | 0.005 in., determine the cause and correct it. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 107: Install The Cartridge-Type Mechanical Seal And Seal-Chamber Cover

    Lubricate all O-rings with suitable lubricant, unless the seal manufacturer’s instructions indicate oth- erwise. Slide the cartridge seal assembly (rotary, stationary gland, gland gasket, and sleeve) onto the shaft (122). NOTICE: Ensure that the mechanical-seal gland-piping connections are properly oriented. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 108: Install The Impeller

    Apply anti-galling compound to the impeller bore to aid in assembly and disassembly. Install the impeller nut and tighten to the torque values shown in the Maximum torque values for 3700i fasteners table. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 109: Install The Coupling Hub

    You can apply anti-galling compound to the casing fits to aid in assembly and disassembly. Replace the back pull-out assembly in the casing using a lifting sling through the bearing frame or other suitable means. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 110: Install The Venturi Insert (Venturi Casings Only)

    (362B) in an alternating pattern until the insert flange is metal to metal with the casing (100). Tight- en each nut to the torque values shown in the maximum torque values table. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 111: Post-Assembly Checks

    Nickel or Moly Anti-seize Moly Anti-seize K=0.15 K=0.15 1/4-20 0.0318 2337 5/16-18 0.0524 3851 3/8-16 0.0775 5696 7/16-14 0.1063 7813 1/2-13 0.1419 10430 9/16-12 0.1819 13370 5/8-11 0.226 16611 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 112 Max preload = prestress* tensile stress area The preload and torque given in this table may need to be adjusted to account for spe- cial conditions, such as gaskets. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 113 2.771 87287 2182 58191 1455 2.125-8 3.152 99288 2637 66192 1758 2.25-4.5 3.248 102312 2878 68208 1918 2.25-8 3.557 112046 3151 74697 2101 2.375-8 3.987 125591 3728 83727 2486 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 114 3/8-16 0.0775 1953 7/16-14 0.1063 2679 1/2-13 0.1419 3576 9/16-12 0.1819 4584 5/8-11 0.226 5695 3/4-10 0.3345 8429 7/8-9 0.4617 11635 0.6058 15266 1.125-7 0.7633 19235 1.125-8 0.7904 19918 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 115 Venturi Insert (100W) (Applicable for venturi style casings) • Impeller (101) with impeller rings (202 and 203) • Thrust bearing end-cover (109A) • Radial bearing end cover (119A) • Shaft (122) • Radial bearing isolator (123) Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 116 Set screw, impeller nut Impeller nut Lockwasher, thrust bearing Key, coupling Oil Sump Liquid Cooling Kit Item No. Part Name Qty. Tubing, finned cooling 494C Bushing - H.C. reducing Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 117 Cooling fan shroud support 234A Shroud cooling fan, thrust 469Q Hex cap screw, guard support 222V Set screw, fan 785D Cowling, cooling fan 569F Hex cap screw, cowling 123B Deflector fan, radial Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 118: Troubleshooting

    Hydraulic Institute Standards Manual. The pump is cavitating. Locate and correct the system problem. The mechanical seal is The gland is not adjusted properly. Tighten the gland nuts. leaking excessively. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 119: Alignment Troubleshooting

    The runout for the impeller wear ring is The shaft is bent. Replace the shaft. excessive. (not applicable on 3700LF The wear ring was machined improper- Replace or re-machine the impel- and 3700LFI) ler. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 120: Parts List And Cross-Sectionals

    Wear Ring, Seal Chamber 1001 2245 2245 2371 2245 2371 6187 6171 234A Shroud Cooling Fan, Thrust 3201 234D Cooling Fan Shroud Support 3201 263C Guard to Frame Screws 2502 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 121 408I Pipe Plug, Thrust Brg Drain Clean- 2502 408L Pipe Plug, Frame Cooling 2502 408M Pipe Plug, Frame Cooling 2502 408O Pipe Plug, Radial Brg Drain Axial 2502 Cleanout Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 122 761B ® 18-8 Stainless with Nylon 12 Cover Monitor, i-Alert 785D Cowling, Cooling Fan 3201 843U Plug, Radial Oil Mist Conversion 2502 843V Plug, Thrust Oil Mist Conversion 2502 Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 123 8.1 Parts list Cross sectional Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 124: Other Relevant Documentation Of Manuals

    9 Other Relevant Documentation of Manuals 9 Other Relevant Documentation of Manuals 9.1 For additional documentation For any other relevant documentation or manuals, contact your ITT representative. Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...

  • Page 125: Local Itt Contacts

    Condominio Industrial El Rosal Huechuraba Santiago 8580000 Chile 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 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual...
  • Page 126 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.3700i.en-US.2022-06 ©2022 ITT Inc. The original instruction is in English. All non-English instructions are translations of the original instruction.

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