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ITT Goulds Pumps AF Installation, Operation And Maintenance Instructions

(6”-36”) mxr bearings
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Installation, Operation and Maintenance Instructions
Model AF (6"-36") MXR Bearings

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Summary of Contents for ITT Goulds Pumps AF

  • Page 1 Installation, Operation and Maintenance Instructions Model AF (6”-36”) MXR Bearings...
  • Page 2 FOREWORD This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Axial Flow (AF) pump model. This manual covers the standard product. For special options, supplemental instructions are supplied. This manual must be read and understood before installation and start-up. The design, materials and workmanship incorporated in the construction of Goulds pumps makes them capable of giving long, trouble-free service.
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  • Page 4 TABLE OF CONTENTS Page Section SAFETY GENERAL INFORMATION INSTALLATION OPERATION PREVENTATIVE MAINTENANCE DISASSEMBLY & RE-ASSEMBLY SPARE PARTS APPENDIX 1 AF (6-36) IOM...
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  • Page 6: Important Safety Notice

    ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and operated. 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 Warnings

    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...

  • Page 8: Electrical Hazard

    When installed in potentially explosive atmospheres, the instructions that follow the Ex symbol must be followed. Personal injury and/or equipment damage may occur if these instructions are not followed. If there is any question regarding these requirements or if the equipment is to be modified, please contact an ITT Goulds Pumps representative before proceeding.

  • Page 9: 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 equipment.
  • Page 10 General Precautions Before beginning any alignment procedure, make sure driver power is locked out. WARNING Failure to lock out driver power will result in serious physical injury. Piping: Never draw piping into place by forcing at the flanged connections of the pump. CAUTION This may impose dangerous strains on the unit and cause misalignment between pump and driver.
  • Page 11 General Precautions Ensure pump is isolated from system and pressure is relieved before WARNING disassembling pump, removing plugs, opening vent or drain valves, or disconnecting piping. Shutdown, Disassembly, and Reassembly: Pump components can be heavy. Proper methods of lifting must be employed to WARNING avoid physical injury and/or equipment damage.
  • Page 12 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 PARTS The use of genuine Goulds parts will provide the safest and most reliable operation of your pump. ITT Goulds Pumps ISO certification and quality control procedures ensure the parts are manufactured to the highest quality and safety levels. Please contact your local Goulds representative for details on...
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  • Page 15: General Information

    GENERAL INFORMATION PUMP DESCRIPTION ................... 11 NAME PLATE INFORMATION ..............12 RECEIVING THE PUMP................13 INSTALLATION AND OPERATION CHECKLIST........14 PUMP DESCRIPTION The AF pump generates flow by the thrust or lift action lockwashers, labyrinth oil seals, shaft, shaft sleeve of rotating axial vanes of the impeller.

  • Page 16: Nameplate Information

    The seal prevents corrosion and allows for easy bearing housing by a removable bottom plate and impeller replacement. The impeller is dynamically gasket. It is generally used when process balanced (double plane) per ISO 1940 to a quality temperatures cause excessive heat build up in the grade G-16.

  • Page 17: Receiving The Pump

    RECEIVING THE PUMP Inspect the pump as soon as it is received. Carefully HANDLING check that everything is in good order. Make notes of damaged or missing items on the receipt and freight WARNING bill. File any claims with the transportation company as soon as possible.
  • Page 18 INSTALLATION AND OPERATION CHECKLIST Model AF COMPLETE INITIAL DESCRIPTION PAGE NO. Manual read and understood 1~69 Level foundation Level subbase 15 ~ 19 Check motor rotation ---CW ---CCW Component rough alignment complete 21 ~ 28 V-belt tension and alignment per drive mfgr. Coupling alignment per cplg mfgr.

  • Page 19: Preparation For Installation

    INSTALLATION PREPARATION FOR INSTALLATION............15 LOCATION/FOUNDATION ................15 SUB-BASE INSTALLATIONS ..............16 PIPE HUNG INSTALLATIONS ..............19 CONNECTION OF PIPING................20 DRIVE ALIGNMENT PROCEDURES ............21 IMPELLER ALIGNMENT ................28 ROTATION CHECK ..................29 PREPARATION FOR INSTALLATION AF units are usually shipped completely assembled. All equipment being installed must be Check all bolts and nuts on the entire unit and make properly grounded to prevent unexpected...
  • Page 20 Foundation bolts are located according to the bolt hole BASEPLATE dimensions shown on the installation drawing. Bolt size is based on hole size, they should be 1/8” to ¼” J-BOLT under the sub-base hole size. For information on spring mounted sub-bases, see the following section SHIMS under spring mounted bases.
  • Page 21 BASEPLATE BOLT GROUT GROUT FOUNDATION Fig. 8 6. Pour grout through the grout holes in the sub-base, up to level of dam. Remove air bubbles from grout SPRING as it is poured by puddling, using a vibrator, or POCKETS pumping the grout into place. Non-shrink grout is Fig.
  • Page 22 1. Place blocks under the sub-base, near each spring spring location, especially if the unit uses more than holder, and position the sub-base level on the (4) springs. If necessary refer to table 1 for spring blocks. A small gap (approx. 1/16”) should exist rate information.
  • Page 23 screw holders un-grouted. The springs must be allowed to push the base back If it becomes necessary to remove a spring assembly to its cold position. from a spring pocket, for safety the following steps should be strictly adhered to: An optional grease filled spring pocket is shown in figure 13.
  • Page 24 3. Connect the horizontal pipe or spool piece to the elbow lower flange and tighten the flange bolts. 4. Check pump for level. Pump should be less than 1/2 degree (0.1”/ft) from horizontal so bearings are not starved of oil (see Fig.15). Be sure thermal expansion does not cause this angle to be exceeded.

  • Page 25: Suction And Discharge Piping

    suction to permit closing of the line for pump SUCTION AND DISCHARGE PIPING inspection and maintenance. WARNING 2. Keep suction pipe free from air pockets. NPSHA must always exceed NPSHR as shown on Goulds performance curves received with order. 3. Piping should be level or slope gradually (Reference Hydraulic Institute for NPSH and pipe downward from the source of supply.
  • Page 26 The AF pump comes with two drive variations, V-belt configurations. Remove the guard or guards by and gear driven. Accurate alignment of both systems referring to the assembly/disassembly instructions. is essential to long pump life and reduced pump There are a few items that should be checked during problems.
  • Page 27 The general method of tensioning belts is given 5. Use Belt Guards - Belt guards protect personnel below, and should satisfy most drive requirements. from danger and the drive from contamination. Inspect periodically to assure that belts do not rub General Method: against guard.

  • Page 28: Angular Alignment

    Good alignment is achieved when the dial indicator After each adjustment, it is necessary to recheck the readings, for both parallel and angular misalignment, alignment of the coupling halves. Adjustment in one are .003" (.076mm) Total Indicated Reading (T.I.R.) direction may disturb adjustments already made in or less when the pump and driver are at operating another direction.

  • Page 29: Parallel Alignment

    When using positions 2 and 4 in steps 1-3, correct METHOD I - Dial Indicator Method any misalignment by sliding the motor back and forth to attain the proper alignment. For the following steps, refer to Fig. 21. 5. Repeat steps 1-4 substituting position 2 for 1.

  • Page 30: Factors That May Disturb Alignment

    NOTE: Care must be taken to have the straight 3. Make corrections as outlined previously. edge parallel to the axis of the shafts 4. Recheck both vertical and horizontal readings to ensure adjustment of one did not disturb the other. COMPLETE ALIGNMENT Correct as necessary.
  • Page 31 Make sure the cap screws fastening the bearing 3. Move the back pullout relative to the elbow until housing to the elbow, Type 1, or the casing to the the impeller is centered. At this point it is elbow, Type 2, are tight, so an accurate measurement recommended that the Impeller Alignment of the impeller clearances can be made prior to Worksheet (on the following page) be filled out...
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  • Page 33: Rotation Check

    ROTATION CHECK Before the V-belts or couplings are installed, the motor Serious damage could occur if the pump is run the should be wired and the direction of rotation checked. wrong direction. A rotation arrow is located on the bearing housing When installing in a potentially explosive (134C).
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  • Page 35: Preparation For Operation

    OPERATION PREPARATION FOR OPERATION.............. 31 STARTING THE PUMP ................. 33 OPERATION ....................34 SHUTDOWN....................36 FINAL ALIGNMENT ..................36 PREPARATION FOR OPERATION 2. Remove the pump coupling guard. CHECKING ROTATION 3. Make sure the coupling halves are securely fastened to shafts. When installing in a potentially explosive environment, ensure that the motor is 4.

  • Page 36: Bearing Lubrication

    and filed with the pump maintenance records for future ball path and the bearings have “run- in”. Adding reference. more grease during this period may increase the bearing temperature. After the first re-greasing, a small amount of grease should be added at each CHECK FOR FREE TURNING fitting every 500 hours of operation or 3 weeks of continuous operation.

  • Page 37: Mechanical Seal

    Most mechanical seals are installed and adjusted at 6. Install the second and third coil as required by the factory. A common seal type used on the AF pump is the cartridge type. Cartridge seals are preset assembly drawing, staggering the cut 90° to 120°. at the seal manufacturer’s facility and require no field settings.

  • Page 38: General Considerations

    unit and refer to driver manufacturers instructions The stuffing box is furnished with (2) N.P.T. holes for for assistance. piping the lubricating liquid. The lubricating liquid is Pumpage temperatures in excess of 200°F will piped into one of them. Some users simply plug the require warmup of pump prior to operation.

  • Page 39: Operating At Reduced Capacity

    Most axial flow pumps are in evaporator circulation Listed below are some causes for circulation loss. service and since the evaporator performance and the Keep in mind that operation at reduced capacities can amount of product depends on the rate of liquid cause damage to the pump.

  • Page 40: Final Alignment

    NOISY OR ROUGH OPERATION 4. Loose impeller 1. Throttled suction or plugging 5. Broken impeller blade 2. Impeller rubbing in casing 6. Bearings not properly lubricated Damage 7. Bent shaft 8. Impeller out of balance. Damage occurs from: 1. Increased vibration levels - Affects bearings, Operating Under Freezing Conditions stuffing box seal chamber, and mechanical seals.

  • Page 41: Preventative Maintenance

    • Leak detectors • PumpSmart control system For assistance in selecting the proper instrumentation and its use, please contact your ITT/Goulds representative. MAINTENANCE SCHEDULE The preventive maintenance section must be ROUTINE INSPECTIONS adhered to in order to keep the applicable ATEX classification of the equipment.

  • Page 42: Maintenance Of Bearings

    Table 1 Pump Size Quarts Litres under ATEX identification, then that 6” temperature is not valid. Should this 8” situation occur, please consult with 10” your ITT/Goulds representative. 12” 3.80 14” 3.80 408D 16” 7.60 18” 7.60 20”...

  • Page 43: Lubricating Grease Requirements

    or an equal quality grade oil. However, a good grade of non-detergent oil of SAE#30 or #40 is usually 193A satisfactory. Consult a reputable supplier for acceptable substitutes for the oils mentioned. The viscosity of the oil should be 150 SSU at the 193B operating temperature to prevent accelerated bearing wear.
  • Page 44 CAUTION Pumpage temperatures above 350°F (177°C) should be lubricated by a high temperature. Mineral oil grease. Mineral oil greases should have oxidation Never mix greases of different consistency (NLG 1 stabilizers and a consistency of NLGI 3. or 3 with NLG 2) or different thickener. For example never mix a lithium base grease with polyurea base grease.
  • Page 45 for a properly adjusted stuffing box, depending on pressure. The piping should be connected to the the shaft size and speed, varies from a few drops stuffing box flush port inlet. per second to a small trickle out of the gland. 3.

  • Page 46: Pump Troubleshooting

    Pump Troubleshooting PROBLEM PROBABLE CAUSE REMEDY Pump not primed or prime lost, liquid level does not completely fill elbow Fill system piping completely so the impeller is submerged Suction inlet clogged Remove obstructions from pump inlet Impeller clogged with foreign material Back flush pump or manually clean impeller Suction and /or discharge valve closed or clogged Open valves to remove shut-off condition...
  • Page 47 Pump Troubleshooting (Cont’d) PROBLEM PROBABLE CAUSE REMEDY Lubricant level Be sure the oil level is at center line of sight glass Improper lubricant Check lubricant for suitability Not lubricated enough Increase frequency of grease lubrication Broken or bent impeller vanes Check impeller dimensions and vane layout Excessive shaft misalignment Check shaft run-out and consult factory...
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  • Page 49: Disassembly And Reassembly

    DISASSEMBLY & RE-ASSEMBLY REQUIRED TOOLS..................45 DISASSEMBLY ..................... 45 INSPECTIONS ....................52 RE-ASSEMBLY..................... 55 PARTS LIST & SECTIONAL DRAWINGS..........62-66 REQUIRED TOOLS • • Safety glasses, leather gloves Torque wrench with sockets • • 11/16”, 7/8”, 1-1/16”, 1-1/4”, 1-5/8” wrenches or Micrometer •...
  • Page 50 4. If the pump is oil lubricated drain all oil from the COUPLING bearing housing before attempting to move the COVERS pump. 5. Depending on the drive arrangement, either direct connect or V-belt, use steps 6, 7 and 8, or 9, 10 and 11 respectively.
  • Page 51 327V 327V 134C 315A Fig. 32 11. Remove the pump to sub-base bolts (372V) and wrap lifting straps or chains around the bearing Fig. 34 housing (134C) and elbow (315A), see Fig. 34. Using a crane, lift the pump vertically from the sub- base.
  • Page 52 Liner (option) BACK-PULLOUT / ELBOW OR ELBOW WITH CASING / LINER (OPTION) 15. If the elbow (315A) or casing (100) has an optional liner (103A) now is the time to remove it. Four Elbow tapped holes in the liner flange are used with screws to jack the liner from its seat.
  • Page 53 Sealed Impeller 17. 700mm and 36” sizes use an impeller cover (998E) 108B and O-rings to keep pumpage out of the impeller cavity. The impeller cover must be removed first to get to the shaft washer (199). Remove the bolts 370C (799B) and cover (998E) from the impeller (101).

  • Page 54: Bearing Housing

    23. Using the eye bolt already threaded into the shaft, DRIP PAN pull the rotating assembly from the bearing housing, see Fig . 46. Once the rotating assembly has been 20. Remove the street elbow (799G) from the drip pan removed place it on a set of wooden V-blocks for nipple, then the screws (799H) and washers (799I) bearing removal, see Fig.’s 47 and 48.
  • Page 55 168C 112C Rotating Element Fig. 47 Fig. 46 222N 4MXR-6MXR Configurations: 112C 25. In order to remove the bearings first pry the tangs of the lock-washer (382) from the lock-nut (136). Use a spanner wrench to remove the lock-nut (136) and lockwasher (382).
  • Page 56 COOLING COIL (OPTIONAL) / SIGHT GLASS 134C 984A 360E / BREATHER AND PLUGS 113A Loosen and remove the screws (370F) that secure the 972H cover plate (113B) to the bearing housing (134C) and discard the gasket. (360E). Remove the cover plate and 408D coil.

  • Page 57: Shaft Sleeve

    4. Inspect the keyway and stepped bores for signs of SHAFT SLEEVE pitting, wear or corrosion damage. 1. The shaft sleeve (126) should be replaced if badly 5. Check the O-ring groove and bolt holes for signs of grooved or worn. Localized wear or grooving pitting or corrosion.
  • Page 58 BEARING HOUSING BEARINGS Inspect the bearing housing (134C) bores for signs of The bearings (112C and 168C) should be inspected scarring or galling from the outer race. Table 6 gives for contamination and damage. The condition of the the critical bore dimensions for the housings. The bearing will provide useful information on operating bores should not be eggy and should be concentric, conditions in the bearing housing.
  • Page 59 RE-ASSEMBLY Re-assembly of the AF is done opposite the order of 168C disassembly with a few exceptions. Be sure the parts are clean and free of burrs and scratches. Every assembly step should be double-checked to ensure proper order and technique to prevent having to OUTER 112C partially disassemble the step you just finished.
  • Page 60 4MXR-6MXR Configurations: (382). Tighten the whole unit until snug. Re- tighten the lock nut (136) several times before the bearing cools completely. Be sure no clearance 6. Heat the inboard radial bearing (168C) to 225°F exists between the inner race, collar (443X) and using an induction heater.
  • Page 61 DRIP PAN 788Z 119C 14. Tilt the drip pan (179) so the attachment ears clear the bearing housing (134C) flange and the nipple protrudes through the cast hole in the bottom of 239A 331 or 370Y the bearing housing. Secure the drip pan to the 412Y bearing housing ribs using the two screws (799H) and washers (799I).
  • Page 62 IMPELLER 351W 178D Standard Impeller 469D 17. Install the shaft key (178). Slide the impeller (101) onto the shaft (122) and if necessary use a 799E wooden mallet to set it in place against the shaft shoulder. Install the shaft washer (199) and 356A fasteners (198), tighten to lock the impeller (101) in place, see Fig.

  • Page 63: Back-Pullout

    O-ring or gasket (351A) between the casing (100) and Back-Pullout / Elbow or Elbow with Casing / elbow (315A). Attach the casing (100) to the elbow Liner (option) (315A) using the bolts (799C) and nuts (799D). With casing (100) slightly loose adjust casing to center the Elbow impeller., see Fig.
  • Page 64 around the bearing housing (134) and elbow screws (502). Install the guard cover (500) using (100), see Fig. 71. screws (502), see Fig. 73. 24. Check impeller alignment and re-align if necessary SHIFT SLIDE BASE INSTALL BELTS Fig. 70 Fig. 72 500A 500A according to instructions on pg.
  • Page 65 this time. Install the pump to sub-base bolts 28. Bolt the two halves of the coupling guard (500) (500A) and remove the lifting straps or chains from together and install over the coupling. Fasten the around the bearing housing (134) and elbow guard to the sub-base using screws (502), see (100), see Fig.
  • Page 66 Fig. 77 AF (6-36) IOM...
  • Page 67 Parts List and Materials of Parts List and Materials of Construction Construction Standard Materials of Standard Materials of Construction Construction HHCS Impeller 100 Elbow 1002 1284 1245 1283 1247 1233 1119 1273 1601 1220 370M 2210 2228 2229 2230 2248 2369 2150 2266 2155 2156 Cover 101 Impeller 1002 1284 1245 1283 1247 1233 1119 1273 1601 1220...
  • Page 68 Fig. 78 AF (6-36) IOM...
  • Page 69 Fig. 79 AF (6-36) IOM...
  • Page 70 Fig. 80 AF (6-36) IOM...

  • Page 71: Recommended Spare Parts

    SPARE PARTS When ordering spare parts, always state Goulds Serial No., and indicate part name and item number from relevant sectional drawing. It is imperative for service reliability to have a sufficient stock of readily available spares. RECOMMENDED SPARE PARTS Suggested Spare Parts •...
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  • Page 73 APPENDIX 1 BEARING ALIGNMENT COLLAR DETAIL The bearing alignment collar is used to install the radial bearing on the 4MXR, 5MXR, and 6MXR bearing configurations. It is recommended that you use this tool so as not to damage the radial bearing and or bearing housing during rotating assembly installation.

  • Page 74: How To Order

    Goulds Representative EMERGENCY SERVICE Emergency parts service is available 24 hours/day, 365 days/year . . . Call 1-800-446-8537 Visit our website at www.gouldspumps.com ©2007 Goulds Pumps, Incorporated Form No. IAF (6-36) 03/07 a subsidiary of ITT Corporation...

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