ITT Goulds 3655, Installation, Operation And Maintenance Instructions

Page 1: ...Installation Operation and Maintenance Instructions 3655 ...

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Page 3: ...6 3 5 Mechanical seals 16 3 6 Connection of drain piping 16 4 Starting Pump 17 4 1 Priming 17 4 2 Adjustment of stuffing box gland 17 4 3 Installation check final 17 5 Operation 18 5 1 Stuffing box 18 5 2 Operating at reduced capacities 18 5 3 Operating at reduced head 19 5 4 Operating with surge conditions in line 19 5 5 Operating under freezing conditions 19 6 Trouble check list 20 6 1 No liquid...

Page 4: ...eplacing shaft sleeve 23 7 4 Wearing rings 26 7 5 Replacing impeller 26 7 6 Replacing casing 27 7 7 Spare parts 27 7 8 Instructions for ordering repair parts 28 Table of Contents 2 3655 Installation Operation and Maintenance Instructions ...

Page 5: ...and main taining these pumps Read thoroughly Sections 2 Installation on page 11 3 Preparation for operation on page 15 4 Starting Pump on page 17 and 5 Operation on page 18 and be sure to follow the instructions for installation and operation Sections 6 Trouble check list on page 20 and 7 Care and maintenance on page 23 are answers to trouble and maintenance questions Keep this instruction book ha...

Page 6: ...com en US Tools and Resources Litera ture or by contacting 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 https www gouldspumps com 1 2 Safety warnings Specific to pumping equipment significant risks bear reinforcement...

Page 7: ...ates a hazardous situation which if not avoided could result in death or serious injury Example Pump shall never be operated without coupling guard installed correctly CAUTION Indicates a hazardous situation which if not avoided could result in minor or moderate injury Example Throttling flow from the suction side may cause cavitation and pump damage Electrical Hazard WARNING Indicates the possibi...

Page 8: ...NING NEVER run pump below recommended minimum flow when dry or without prime WARNING ALWAYS lock out power to the driver before performing pump maintenance WARNING NEVER operate pump without safety devices installed WARNING NEVER operate pump with discharge valve closed WARNING NEVER operate pump with suction valve closed WARNING DO NOT change service application without approval of an authorized ...

Page 9: ...ers of the proper size and material WARNING Replace all corroded fasteners WARNING Ensure all fasteners are properly tightened and there are no missing fasten ers WARNING Startup and Operation When installing in a potentially explosive environment please ensure that the motor is properly certified WARNING Operating pump in reverse rotation may result in contact of metal parts heat generation and b...

Page 10: ...void physical injury and or equipment damage Steel toed shoes must be worn at all times WARNING The pump may handle hazardous and or toxic fluids Observe proper decon tamination procedures Proper personal protective equipment should be worn Precautions must be taken to prevent physical injury Pumpage must be han dled and disposed of in conformance with applicable environmental regula tions WARNING...

Page 11: ...lectrical equipment installed in Europe ATEX deals with the control of potentially explosive atmospheres and the standards of equipment and protective systems used within these atmospheres The relevance of the ATEX re quirements is not limited to Europe You can apply these guidelines to equipment installed in any poten tially explosive atmosphere Guidelines for compliance Compliance is fulfilled o...

Page 12: ... and contact your ITT Goulds Pumps sales representative before proceeding The CE and the Ex designate the ATEX compliance The code below reads as follows II Group Non Mining Equipment 2 Category 2 G D Gas and Dust present T4 Temperature class can be T1 to T6 see Table The code classification marked on the equipment must be in accordance with the specified area where the equipment will be installed...

Page 13: ...er than the motor feet Shim as required then bolt all feet securely to foundation Be careful not to twist or distort feet 2 4 Piping general 1 All piping must be supported independently of the pump The piping should always line up natu rally with the pump flanges Never draw the piping into place by use of force at the flanged suc tion and discharge connections of the pump 2 The piping both suction...

Page 14: ...Figure 2 2 4 Piping general 12 3655 Installation Operation and Maintenance Instructions ...

Page 15: ...Figure 3 2 4 Piping general 3655 Installation Operation and Maintenance Instructions 13 ...

Page 16: ...e suction line to permit closing the line for pump inspection and maintenance 2 The size of the entrance from the source of supply or minimum submergence over the entrance should be calculated from the data as shown in Figure 2 for applicable condition to prevent air from being drawn into the pump 2 6 Piping discharge 1 A gate valve and a check valve should be installed in the discharge line The c...

Page 17: ...the bosses of the gland to hold gland halves together 4 Place the two gland nuts on the studs and draw up evenly but not tight 3 3 Connection of sealing liquid or grease lubricator If the stuffing box is above atmospheric pressure and the pumpage is clean normal gland leakage of 40 60 drops per minute is usually sufficient to lubricate and cool the packing and sealing liquid is not required Sealin...

Page 18: ...n can be piped away 3 5 Mechanical seals Mechanical seals of various types and makes may be supplied on special order If supplied they were properly installed and adjusted at the factory No further adjustment is required Connect circulating line between stuffing box and pump casing if not already connected This line assures sufficient pumpage to seal for cooling and lubrication Check separate seal...

Page 19: ... on a hot box as this will usually result in liquid leaking between the outer edge of the packing and the stuffing box bore Remember that it takes newly installed packing some time to run in and that during this period frequent attention and careful adjustments are necessary See 3 2 Stuffing box on page 15 for final adjustments of gland 4 3 Installation check final Final check of installation can ...

Page 20: ...d to drive the pump is converted into heat If this condition exists over a long period the temperature of the liquid in the pump may increase until the boiling point is reached If this occurs the rotating parts are exposed to vapor with no lubrication and they may score or even seize to the stationary parts and furthermore if running clearances have enlarged due to wear seizure may not take place ...

Page 21: ... safe point 5 4 Operating with surge conditions in line If pump is installed with a quick closing valve in discharge line that closes when pump is running danger ous pressure surges may be built up that can cause damage to the pump or line In services of this kind some cushioning arrangement must be provided to protect the pumping equipment 5 5 Operating under freezing conditions When exposed to f...

Page 22: ... Priming casing and suction pipe not completely filled with liquid 2 1Speed too low 3 Discharge head higher than anticipated Check total head particularly friction loss 4 Suction lift too high suction pipe may be too small or long causing excessive friction loss Check with vacuum or compound gauge 5 Impeller or suction pipe or opening partially plugged 6 Wrong direction of rotation 7 Air pocket in...

Page 23: ...uch service 5 Air or gases in liquid 6 Suction lift too high suction pipe may be too small or long causing excessive friction loss Check with vacuum or compound gauge 7 Impeller plugged 6 5 Pump takes too much power 1 Speed too high 2 Head lower than rating pumps too much liquid 3 Liquid heavier than anticipated Check viscosity and specific gravity 4 Mechanical defects 1 Shaft bent 2 Rotating clem...

Page 24: ...t When connected to electric motors check whether motor wiring is correct and receives full voltage When connected to steam turbines make sure that turbine receives full steam pressure 6 7 Pump is noisy 22 3655 Installation Operation and Maintenance Instructions ...

Page 25: ...nut 304 and impeller washer 199 from shaft 5 By use of a suitable puller similar to that shown in Fig 4 pull impeller from shaft Puller must push against shaft as shown Do not use a type that pulls from casing All impellers are provided with two tapped holes to facilitate use of a puller If key 178 remained in shaft remove it 6 Remove stuffing box gland 107 7 Remove bolts 370 and pull casing 100 f...

Page 26: ...2 5 2 1 2 x 2 1 2 6 4 x 4 7 2 x 2 7 3 x 3 5 1 1 2 x 2 9 2 x 2 1 2 9 2 1 2 x 3 9 2 x 3 7 3 x 4 7 4 x 5 7 5 x 5 7 6 x 6 9 2 1 2 x 3 11 3 x 4 11 4 x 6 11H 2 1 2 x 3 13 3 x 4 13 4 x 6 13 4 x 6 13L 6 x 8 13 8 x 8 11 Figure 5 Shaft sleeve replacement 7 3 Replacing shaft sleeve 24 3655 Installation Operation and Maintenance Instructions ...

Page 27: ...y to deflector 123 15 Replace casing 100 and bolts 370 16 Replace impeller key 178 in shaft being sure that key enters keyway in sleeve 17 Slide impeller on shaft as far as possible 18 Using a soft metal hammer tap evenly on center of impeller until shaft threads protrude beyond im peller 19 Push impeller on the remaining distance with impeller nut 304 and washer 199 20 Replace suction cover 182 g...

Page 28: ... designed with two wearing rings 4 Remove impeller nut 304 and washer 199 5 By use of a suitable puller similar to that shown in Fig 4 pull impeller from shaft Puller must push against shaft as shown Do not use a type that pulls from casing All impellers are provided with two tapped holes to facilitate use of a puller 6 Check diameters of both hubs and rings If clearances are excessive the rings s...

Page 29: ... 370 11 Oil shaft and key 12 Slide impeller on shaft and key as far as possible 13 Using a soft metal hammer tap evenly on center of impeller until shaft threads protrude beyond im peller 14 Push impeller on the remaining distance with impeller nut 304 and washer 199 15 Replace suction cover 182 gasket 351 and nuts on studs 356 16 Connect all piping 17 Repack stuffing box as directed in 3 2 Stuffi...

Page 30: ...l be obtained from the nameplate 2 Write plainly the names part numbers and material of the parts required These names and num bers should agree with those on the sectional assembly Sectional assembly parts and interchan geability chart 3 Give the number of parts required 4 Give complete shipping instructions 7 8 Instructions for ordering repair parts 28 3655 Installation Operation and Maintenance...

Page 31: ...www gouldspumps com ITT Goulds Pumps Vertical Products Operation 3951 Capitol Avenue City of Industry CA 90601 1734 USA 2021 ITT Corporation The original instruction is in English All non English instructions are translations of the original instruction Form IOM 3655 en US 2021 06 ...