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Related Manuals for Goulds Pumps 3935
Summary of Contents for Goulds Pumps 3935
- Page 1 Installation, Operation and Maintenance Instructions Model 3935...
- Page 3 Current manuals are available at your nearest Goulds Pumps sales representative. These manuals must be read and understood before installation and start-up. For additional information, contact your nearest Goulds Pumps sales representative or visit our Web site at www.gouldspumps.com.
- 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 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. Example: Improper impeller adjustment could cause contact between the rotating and stationary parts, resulting in a spark and heat generation.
- 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 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 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 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 11: Table Of Contents
Sectional view ........................18 Parts list and materials of construction .................. 19 Pressure/temperature capability ................... 21 Troubleshooting ........................22 Spare parts ..........................23 Ordering spare parts ......................23 Instructions for ordering spare parts ..................23 Model 3935 Installation, Operation and Maintenance Instructions... -
Page 12: 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: General
Pumps, Inc., Seneca Falls, New York 13148. Special warnings Goulds Pumps, Inc. will not be liable for any damages or delay caused by failure to comply with the provisions of this instruction manual. This pump is not to be operated at speeds, working pressures, discharge pressures or temperatures higher than, nor used with liquids other than, stated in the original order acknowledgement without written permission of Goulds Pumps, Inc. -
Page 14: Installation
The Model 3935 should never run dry. If there is any possibility that the pump's source of liquid might fail, a protective device should be incorporated into the system to shut the pump down. -
Page 15: 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. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 16: Operation
NOTICE: The oiler may be installed on the right side of the pump (viewed from motor end) by moving the 2"· 11½ NPT plug with ¼"-18 NPT tapped hole to right side and assembling as above. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 17: Start-Up Procedures
Start-up Procedures 1. Valves Be sure suction valve is fully open. Normally, discharge valve should be at least partially closed so that flow will be controlled. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 18: Operational Checks
If the pump is to be serviced, be sure suction valves are closed, auxiliary cooling and flushing flows are shut off and motor is locked out before working on pump. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 19: Preventive And Corrective Maintenance
Of equal importance is that the vibration level does not increase. If a problem with vibration is encountered, refer to Troubleshooting (page 21). Performance If performance deteriorates, refer to Troubleshooting (page 21). Model 3935 Installation, Operation and Maintenance Instructions... -
Page 20: Disassembly And Reassembly
(522) away from the splined end of the shaft (122) and off the split collet (524). A piece of pipe sized to seat against the larger end of the drive sleeve should be used for this. Spread Model 3935 Installation, Operation and Maintenance Instructions... -
Page 21: Inspection And Overhaul
Drive inner race of bearing only. 3. Thread the bearing locknut (136) on stub shaft (380) and tighten firmly. 4. Place wave washer (529) in the bottom of the bearing frame (228). Model 3935 Installation, Operation and Maintenance Instructions... -
Page 22: M, L, X, And Y Frames
The split collet (524) must still be in the groove butted against the edge closest to the splined end of the shaft. If the drive collar (522) split collet (524) are not positioned and seated properly as shown, damage to the pump can occur when in operation. Model 3935 Installation, Operation and Maintenance Instructions... - Page 23 The amount of movement as read on the dial indicator is the Front Clearance for this impeller. Add or subtract shims as necessary to obtain the required Front Clearance. Required Front Clearances are listed in Impeller Stack Clearance tables. Model 3935 Installation, Operation and Maintenance Instructions...
- Page 24 15. Install spacer sleeves (157) after last impeller has been installed and its Front Clearance is set. Check space between end of last spacer sleeve (157) and snap ring groove at end of Model 3935 Installation, Operation and Maintenance Instructions...
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Page 25: Bearing And Seal Replacement
(361D). Use care to avoid cutting rubber bellows on spline teeth. On BP20 pumps, the seal shoulders against the step in the shaft. When reassembling unit, be sure O-rings (412L) are not cut and that they are seated securely. Model 3935 Installation, Operation and Maintenance Instructions... - Page 26 +0.508mm ± 0.127mm |+0.020" ± 0.005" 21st to 30th stages 4th stack +0.635mm ± 0.127mm |+0.025" ± 0.005" 31st to 40th stages 5th stack +0.762mm ± 0.127mm |+0.030" ± 0.005" 41st and 42nd stages Model 3935 Installation, Operation and Maintenance Instructions...
- Page 27 + 0.762mm ± 0.127mm | +.030" ±.005" 37th to 40th stages 11th stack + 0.762mm ± 0.127mm | +.030" ±.005" 41st to 44th stages 12th stack + 0.762mm ± 0.127mm | +.030" ±.005" 45th to 48th stages Model 3935 Installation, Operation and Maintenance Instructions...
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Page 28: Sectional View
NEMA motors from 3 HP TEFC to 25 HP OOP. to be mounted on the J frame to 25 HP ODP can be mounted is the NEMA 3 HP ODP. on this bearing frame. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 29: Parts List And Materials Of Construction
Steel/zinc plate Frame - grease lube Cast iron 228A Frame - oil lube Cast iron Coupling hub - motor Die metal Coupling hub - pump Die metal Coupling sleeve Rubber** Sight oiler White metal/glass Model 3935 Installation, Operation and Maintenance Instructions... - Page 30 H cap screw - adapter to seal housing Steel 371L H cap screw - adapter to seal frame Steel 383A Rotary element 18-8 SS-Viton 383B* Stationary seat (XP171) NI-Resist and Viton 383B Stationary seat (XP1D1) Carbide and Viton Model 3935 Installation, Operation and Maintenance Instructions...
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Page 31: Pressure/Temperature Capability
W/0 Seal Housing Cooling J and SFrames (Grease to 120°C | 2°F perature Lube) L. M. X & Y Frames Oil to 149°C | 300°F Lube) W/Seal Housing Cooling All Frames to 204°C | 400°F Model 3935 Installation, Operation and Maintenance Instructions... -
Page 32: Troubleshooting
24. Pump not properly secured to base or piping not properly supported: provide for secure bolting to base, proper base structure and support of pipes. 25. Incorrect bearing frame oil level (high or low) or lack of grease: follow lubrication instructions. Model 3935 Installation, Operation and Maintenance Instructions... -
Page 33: Spare Parts
3. Pump Size. 4. Pump Construction Order Data 1. Part name 2. Part number (item number) These names and numbers should agree with those on Sectional view (page 18). Explanation of Pump Nameplate designation Model 3935 Installation, Operation and Maintenance Instructions... - Page 34 Modification: Relocation of Oiler on Model 3333-3335-3935 Oil Lube Frames History: The oiler on Model 3333-3335-3935 oil lube frames was piped to the frame as shown below. Variation in the length of the vertical pipe nipple; variation in thread engagement between nipple, elbow and oiler;...
- 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...