ITT GOULDS PUMPS 3935 Installation, Operation And Maintenance Instructions
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- Page 1 All manuals and user guides at all-guides.com Installation, Operation and Maintenance Instructions Model 3935...
- Page 2 All manuals and user guides at all-guides.com...
- Page 3 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 4 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 5 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 6 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 7 All manuals and user guides at all-guides.com 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 8 All manuals and user guides at all-guides.com 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 9 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 10 All manuals and user guides at all-guides.com 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.
- Page 11 All manuals and user guides at all-guides.com Table of Contents Table of Contents Introduction ..........................2 General ............................. 3 Importance of instructions ....................... 3 Special warnings ........................3 Receiving inspection shortages ....................3 Preservation and storage ......................3 Handling techniques ....................... 3 Installation ..........................
- Page 12 All manuals and user guides at all-guides.com Introduction Introduction This instruction manual is intended to assist those involved with the installation, operation, and maintenance of Goulds Model 3935 Multi-Stage Pumps. It is recommended that this manual be thoroughly reviewed prior to installing or performing any work on the pump or motor.
- Page 13 All manuals and user guides at all-guides.com General General Importance of instructions The design, material, and workmanship incorporated into the construction of Goulds pumps make them capable of giving long, trouble-free service. The life and satisfactory service of any mechanical unit, however, are enhanced and extended by correct application, proper installation, periodic inspection, and careful maintenance.
- Page 14 All manuals and user guides at all-guides.com Installation Installation Location Pumping unit should be placed as close as practical to the source of supply. Floor space and head room allotted to the unit must be sufficient for inspection and maintenance. Be sure to allow for crane or hoist service.
- Page 15 All manuals and user guides at all-guides.com Installation Mechanical seals The pump is equipped with a mechanical seal. Damage can result if mechanical seals are run dry or in abrasives. For special seals, follow the instructions on the seal drawing supplied with the order for recirculation, flush and/or cooling flows required.
- Page 16 All manuals and user guides at all-guides.com Operation Operation Start-up Check List 1. Lubrication - J and S Frames J Frame - J frame pumps have a greased-for-life ball bearing. No additional lubrication is required. S Frame - S frame pumps have ball bearings which are greased at the factory. Bearings should be regreased every 2000-3000 hours (3-4 months).
- Page 17 All manuals and user guides at all-guides.com Operation d) Install the nipple-elbow assembly so that the long nipple ¼ NPT x 44mm | 1.75" long] extends horizontally from the frame to the 90 degree elbow and the close nipple vertically from the elbow to the Bottom connection of the oiler. Refer to Dimensional checks figure.
- Page 18 All manuals and user guides at all-guides.com Operation 2. Rotation Check With motor uncoupled from frame, jog motor to check for proper rotation. Rotation should be counter-clockwise when viewed from coupling end. Recouple when satisfied. 3. Start Pump is now ready to start. Operational checks Inspect pump carefully and frequently during the first few hours of operation.
- Page 19 All manuals and user guides at all-guides.com Preventive and corrective maintenance Preventive and corrective maintenance Lubrication Refer to Start-up (page 6) for lubrication procedures for pump. Follow motor and coupling manufacturer's lubrication instructions. Mechanical seal The seal requires no attention other than to make sure that circulating lines, where installed, do not become clogged.
- Page 20 All manuals and user guides at all-guides.com Disassembly and reassembly Disassembly and reassembly Disassembly of pump 1. Lock out power source. 2. Shut off valves controlling flow to and from pump. Disconnect piping. 3. Drain pump through plug (408A) in bottom of casing adapter. NOTICE: If pump has handled corrosive liquids, the motor end should be elevated to assure complete draining.
- Page 21 All manuals and user guides at all-guides.com Disassembly and reassembly the split collet with suitable tool, remove it from the groove in the shaft and slide if off the shaft. 18. Remove seal seat mount (158) if not already pulled. (228 or 228A). 19.
- Page 22 All manuals and user guides at all-guides.com Disassembly and reassembly After lightly oiling the bearing housing bore and bearing outer races, install the stub shaft assembly. This is a sliding fit; do not tap in place. 5. Install the bearing end cover (109) and gasket (360) and tighten bearing cap bolts (370N) evenly.
- Page 23 All manuals and user guides at all-guides.com Disassembly and reassembly 1. Drive sleeve 2. Split collet (524) 3. Mechanical seal retaining ring groove (BP40, 70, 100 and 200 only) Figure 2: Drive collar and split collet installation 5. Install mechanical seal retaining ring (361D) on shaft (122) in groove near splined end. On BP20 pumps only, this ring (361D) is not required as shaft has a retaining stepped shoulder.
- Page 24 All manuals and user guides at all-guides.com Disassembly and reassembly Figure 3: Dial indicator 14. Continue adding diffusers and impellers. Shim each impeller to obtain the required front clearance. 15. Install spacer sleeves (157) after last impeller has been installed and its Front Clearance is set.
- Page 25 All manuals and user guides at all-guides.com Disassembly and reassembly shaft. Add shims as necessary under the last spacer (157) until end of spacer covers approximately ½ of shaft retaining ring groove. Enter the shaft retaining ring over the shaft and press it down until it snaps in the groove.
- Page 26 All manuals and user guides at all-guides.com Disassembly and reassembly d) Refer to mechanical seal drawing for special seal arrangements. Table 2: BP20 impeller stack clearance BP20 Impeller Stack Required Front Clearance 1st stack + 1.016mm ± 0.127mm | + 0.040" ± 0.005" 14 stages or less 2nd stack + 0.635mm ±...
- Page 27 All manuals and user guides at all-guides.com Disassembly and reassembly NOTICE: 1. Steady bearings are located between each stack - every 10 stages. 2. Use only 0.254mm | 0.010" shims for setting front clearance of impellers 25, 31 and 35. 3.
- Page 28 All manuals and user guides at all-guides.com Disassembly and reassembly NOTICE: 1. Steady bearing located between each stack - every 14 stages. 2. At completion of stacking, remove one 0.508mm | 0.020" shim from front of (suction side) impeller 41. Sectional view J Frame S Frame...
- Page 29 All manuals and user guides at all-guides.com Disassembly and reassembly L and X Frames Y Frame The oil lubricated L frame provides high thrust capability as Foot mounted industrial NEMA motors encountered in high discharge pressure applications with tan- from 40 HP TEFC through 150 HP dem mounting of angular contact bearings.
- Page 30 All manuals and user guides at all-guides.com Disassembly and reassembly Grease Oil Lubrication Item Lubrication Part Name Material Grease seal - bear- Buna-N ing cover 332A Oil seal - bearing Buna-N cover Grease seal - frame Buna-N 333D Oil seal - Frame Buna-N Gasket end cover Vellumoid...
- Page 31 All manuals and user guides at all-guides.com Disassembly and reassembly Item No. Part Name Material 408A Pipe plug - drain Brass 412J* O-ring cooling jacket (not shown) Viton 412K O-ring casing Viton 412L O-ring stationary seat mount Viton 473* Restricting bushing - cooling jacket (not Carbon shown) Drive collar...
- Page 32 All manuals and user guides at all-guides.com Troubleshooting Troubleshooting Problem Possible causes and correction A. No Liquid delivered, not enough liquid delivered, 1, 2. 3. 4, 5, 6, 7. 8, 9, 10, 11, 12, 13, 14, 17, 22, 23 or not enough pressure B.
- Page 33 All manuals and user guides at all-guides.com Spare parts Spare parts Ordering spare parts To ensure against possible long and costly downtime periods, especially on critical services. it is advisable to have spare parts on hand. The most desirable parts to have on hand are the following: 1.
- Page 34 All manuals and user guides at all-guides.com Spare parts 1. Pump Type 2. GPM @ BEP 3. Number of stages 4. Pump Frame (1) 5. Pump Construction 6. Mechanical Seal Cooling Option (2) 7. Stationary Seat Option (3) Figure 5: Example 1.
- Page 35 All manuals and user guides at all-guides.com...
- Page 36 Visit our website for the latest version of this document and more information: www.gouldspumps.com ITT Goulds Pumps 240 Fall Street Senenca Falls, NY 13148 Form IOM.3935.en-US.2008-05 © 2015 ITT Corporation The original instruction is in English. All non-English instructions are translations of the original instruction.
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