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30. Using a bearing puller or a press, remove the inboard cylindrical roller bearing (409). Be sure to ap-

ply the removing force to the inner race of the bearing to prevent damage to the races.

31. Be sure shaft and keyway are free of burrs and sharp edges so labyrinth seal o-ring will not be dam-

aged and remove bearing end cover (109A).

32. Slide the bearing housing (134A) off shaft.
33. Straighten "tang" in lock washer (382) and remove bearing lock nut and washer.
34. Remove coupling end bearing using a bearing puller. Care must be taken to prevent damage to

bearings. Never use a hammer to drive shaft through bearing. Protect bearing from contamination.

35. The "L" group shaft is equipped with two oil flingers (236). If the shaft is being re-used, the flingers

should not be removed, as they may be deformed during removal. If the shaft is being replaced,
new flingers should be used.

Figure 24: Oil lube

6.3 Disassembly

3500XD Installation, Operation and Maintenance Instructions

Содержание Goulds Pumps 3500XD

Страница 1: ...Installation Operation and Maintenance Instructions 3500XD ...

Страница 2: ......

Страница 3: ...arallel alignment 20 3 5 3 Complete alignment 21 3 6 Alignment troubleshooting 22 3 7 Grout baseplate 22 3 7 1 Alignment check 23 3 8 Piping 23 3 8 1 General 23 4 Preparation for Startup 24 4 1 Check rotation 24 4 1 1 Check impeller axial clearance 24 4 1 2 Couple pump and driver 24 4 1 3 Lubricating bearings 25 4 1 4 Shaft sealing 25 5 Operation and Controls 26 5 1 Air removal system general desc...

Страница 4: ...1 6 Maintenance 34 6 1 Lubrication 34 6 2 Impeller clearance adjustment 35 6 3 Disassembly 36 6 4 Inspection and overhaul 41 6 5 Reassembly of pump 42 6 6 How to order 47 6 7 Emergency service 47 Table of Contents 2 3500XD Installation Operation and Maintenance Instructions ...

Страница 5: ...erstand ing the construction and the correct methods of installing operating and maintaining these mixers ITT Goulds Pumps shall not be liable for physical injury damage or delays caused by a failure to ob serve the instructions for Installation Operation and Maintenance contained in this manual Warranty is valid only when genuine ITT Goulds parts are used Use of the equipment on a service other t...

Страница 6: ...om 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 ...

Страница 7: ...tes 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 possibil...

Страница 8: ...ING 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 I...

Страница 9: ...rs 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 br...

Страница 10: ...oid 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 ...

Страница 11: ...e product and product handling requirements for Ex approved products in potentially explo sive atmospheres Only use the product in accordance with the approved motor data The Ex approved product must never run dry during normal operation Dry running during service and inspection is only permitted outside the classified area Before you start work on the product make sure that the product and the co...

Страница 12: ...ing Current IOMs are available at https www gouldspumps com en US Tools and Resources Literature IOMs or from your local ITT Goulds Pumps Sales representative All pumping unit pump seal coupling motor and pump accessories certified for use in an ATEX classi fied environment are identified by an ATEX tag secured to the pump or the baseplate on which it is mounted A typical tag would look like this ...

Страница 13: ...Pumps sales representative before proceeding 1 6 Parts The use of genuine Goulds parts will provide the safest and most reliable operation of your pump ITT Goulds Pumps ISO certifica tion and quality control procedures ensure the parts are manufac tured to the highest quality and safety levels Please contact your local Goulds representative for details on genuine Goulds parts 1 6 Parts 3500XD Inst...

Страница 14: ... 3 months Refer to driver and coupling manufacturers for their long term storage procedures Store in a covered dry location NOTICE For pumps or back pull out assemblies supplied with cartridge mechanical seals the centering tabs must be in place and tightened and the set screw collar loosened Failure to take these steps could result in damage to the mechanical seal or shaft sleeve NOTICE Long term...

Страница 15: ...ructions for lifting a Polyshield ANSI Combo with installed equipment Never lift a Poly shield ANSI Combo with pump and motor mounted using the procedure shown in Fig 3 and Fig 4 2 2 Introduction The Goulds Model 3500XD heavy duty stock pump is a centrifugal pump designed to handle paper stock up to approximately 16 O D consistency The pump design 2 2 Introduction 3500XD Installation Operation and...

Страница 16: ...nsistency and temperature of each specific application 1 Zone 1 turbulence generation and air separation 2 Zone 2 Fiber return 3 Zone 3 Air removal 4 Zone 4 Pumping zone Figure 5 Suction standpipe Air separation occurs due to the action of X Ducer in Zone 1 The air collects at the center of the X Ducer and is pumped through balance holes in the impeller shroud Any remaining paper stock is separate...

Страница 17: ... air separation The repeller is keyed to the shaft and sealed with PTFE O rings Stuffing Box Cover The stuffing box cover contains a degasification nozzle through which excess air is removed Shaft sealing is accomplished with a mechanical seal as standard Shaft Shaft Sleeve The shaft is designed to minimize deflection in the seal area and at the impeller It is protected from the pumpage by a repla...

Страница 18: ...ent rigid support for the pumping unit The location and size of the foundation bolts are shown on the outline assembly drawing provided with the pump data package Foundation bolts commonly used are sleeve type Fig 6 and J Type Fig 7 Both designs permit move ment for final bolt adjustment 1 2 3 4 5 6 1 Baseplate 2 Shims 3 Foundation 4 Sleeve 5 Dam 6 Bolt Figure 6 Sleeve type bolts 1 3 2 4 5 1 Basep...

Страница 19: ...to within 3 2 mm 125 in over length of the baseplate and to within 1 5 mm 0 875 in over the width of the base by adjusting wedges 5 Hand tighten bolts Figure 9 Side view 3 3 Alignment and alignment procedure WARNING Lock out driver power to prevent accidental start up and physical injury The points at which alignment is checked and adjusted are Initial Alignment is done prior to operation when the...

Страница 20: ... procedure are 05 mm 002 in Total Indicated Reading T I R or less when the pump and driver are at operating temperature Final Alignment During the installation phase however it is necessary to set the parallel alignment in the vertical direc tion to a different criteria due to the differences in expansion rates of the pump and driver The table be low shows recommended preliminary cold settings for...

Страница 21: ...Reading The coupling halves are further apart at the bottom than at the top Correct by either raising the driver feet at the shaft end add shims or lowering feet at the other end re move shims Fig 11 Positive Reading The coupling halves are closer at the bottom than at the top Correct by ei ther lowering the driver feet at the shaft end remove shims or raising the driver feet at the other end add ...

Страница 22: ...erve needle and record reading 3 Negative Reading Coupling half X is lower than coupling half Y Correct by removing shims of thickness equal to half of the indicator reading under each driver foot Positive Reading Coupling half X is higher than coupling half Y Correct by adding shims of thickness equal to half of the indicator reading from each driver foot Fig 13 NOTICE Equal amounts of shims must...

Страница 23: ...parallel do not vary by more than 05 mm 002 in when measured at four points 90 apart Vertical Correction Top to Bottom 1 Zero indicators A and P at top dead center 12 o clock of coupling half Y 2 Rotate indicator to bottom dead center 6 o clock Observe the needles and record the readings 3 Make corrections as outlined previously Horizontal Correction Side to Side 1 Zero indicators A and P on the l...

Страница 24: ...owered and correct by evenly adding or removing shims at the center of the baseplate 3 7 Grout baseplate 1 Clean areas of baseplate that will contact grout Do not use oil based cleaners because grout will not bond to it Refer to grout manufacturer s instructions 2 Build dam around foundation Thoroughly wet foundation Fig 15 3 Pour grout through grout hole in baseplate up to level of dam Remove air...

Страница 25: ...ge to the equipment and or physical injury 1 All piping must be supported independently of and line up naturally with the pump flanges 2 Piping runs should be as short as possible to minimize friction losses 3 Do not connect piping to pump until grout has hardened and pump and driver hold down bolts have been tightened 4 The piping should be arranged to allow pump flushing prior to removal of the ...

Страница 26: ... The impeller clearance setting procedure must be followed Improperly setting the clearance can result in equipment damage and heat generation casing failure The proper impeller axial clearance is required for proper air removal and efficient pump operation See the maintenance section of this manual for the correct clearance and method of setting 4 1 2 Couple pump and driver WARNING Before install...

Страница 27: ...cated at the job site Refer to the Maintenance Section of this manual for further details on lubrication 4 1 4 Shaft sealing CAUTION Never operate the pump without liquid supplied to mechanical seal Running a mechanical seal dry even for a few seconds can cause seal damage and must be avoided Physical injury can occur if mechanical seal fails The Model 3500XD pump is supplied with a cartridge mech...

Страница 28: ...elief valve VR is used to control the pressure in the air removal system at a constant set ting The pressure in the air removal piping is indicated on the compound gauge PI Before start up the pressure in the degas system should be set at 5 inches Hg mercury vacuum gauge This operation is carried out by starting the vacuum pump with the ARV closed and adjusting the VR until a reading of 5 in Hg va...

Страница 29: ...be set for each specific application to obtain opti mum air removal and pump performance With stock temperatures up to 170 F a level of 3 to 5 above the pump centerline is typical Above 170 F the level must be increased to account for the increased vapor pressure of the stock Refer to the IOM Appendix for the order specific information on the standpipe operating level high and low level alarms If ...

Страница 30: ...t pumping when the standpipe level exceeds its set point by 10 A maximum signal selector is also used to allow DCV 1 and DCV 2 to be open a preset amount while still maintaining the automatic function on an increase in level The normal set point of the standpipe level controller LCI is approximately 25 When the level ex ceeds 25 the level control valve opens to bring the level back to its set poin...

Страница 31: ...ment should be clean filtered water with a maximum particle size of 50 microns a maximum temperature of 100 F 40 C and supplied at mini mum pressure of 50 PSIG 3 5 bar The seal water flow indicators for the mechanical seal and the vac uum pump are equipped with flow switches which are set to give an alarm if the flow falls below 50 of the set point The Model 3500XD pump will not start unless the s...

Страница 32: ...e dilution valves DCV 1 and DCV 2 to 100 The vacuum pump starts Begin adding stock to the standpipe When the stock flow to the standpipe is at normal production slowly close the dilution valves and switch the dilution controller to auto Gradually adjust the set point to the designated level for the specific service leaving the level controller on automatic If the pump discharge pressure drops or p...

Страница 33: ...d the vacuum pump can be shut off If the seal water to this mechanical seal is left on the standpipe can gradually fill up with water 5 6 Operation without a vacuum pump The Model 3500XD can be supplied both with and without a vacuum pump Services with design pulp consistency of 10 or less can be supplied without a vacuum pump When a vacuum pump is supplied the flowing operating instructions can b...

Страница 34: ...ges in consistency pH or temperature have caused a significant increase in the discharge piping head loss The above causes can be remedied by increasing the dilution water flow Table 4 Troubleshooting the model 3500XD standpipe installation Problem Symptoms Possible cause Solutions Pump will not start pump ing Amps to drive motor normal Control valve LCV does not open Check that the supply air pre...

Страница 35: ... movement delay the input from the level transmitter if necessary Level measurement is too sensitive Add filtering or delay the in put to the LIC Motor overloaded Flow unstable Motor overloaded Volume flow above normal Consistency is too low switch to manual control Power consumption normal Flow transmitter is too sensi tive Increase transmitter re sponse time Power consumption normal but changes ...

Страница 36: ...nhibitors should be used For the majority of operational conditions bearing temperatures will run between 60 C 140 F and 82 C 180 F In this range an oil of ISO viscosity grade 68 at 40 C 105 F is recommended If bearing temperatures exceed 82 C 180 F use of ISO viscosity grade 100 is recommended Acceptable Oils Exxon Teresstic EP 68 Chevron GTS Oil 68 Mobil Mobil DTE 26 300 SSU 38 C 100 F Gulf Gulf...

Страница 37: ...pump should be disassembled and the impeller suction sideplate and casing inspected for wear The proper impeller clearance setting provides for equal clearance on both the front side impeller to suc tion sideplate and the back side repeller to stuffing box cover Prior to setting the impeller clearance it is first necessary to measure the total impeller travel normally in the range of 0 090 to 0 14...

Страница 38: ...must be taken after impeller ad justment to properly set the seal prior to start up 13 Tighten drive collar set screws 14 Loosen and back off centering tabs WARNING Pump shall never be operated without coupling guard installed correctly 6 3 Disassembly WARNING Lock out driver power to prevent accidental start up and physical injury The back pullout feature of this pump allows the complete back pul...

Страница 39: ...8 to as sist disassembly Screw the jacking bolts into the tapped holes in the frame adapter Tighten bolts evenly a flat at a time to jack back pullout assembly from casing If working space is available to the side of the baseplate the pullout assembly can be turned per pendicular to the baseplate Replace one pedestal hold down bold in baseplate and support the bearing frame flange with blocks Comp...

Страница 40: ...late 176 by tightening the three jacking screws 370L Be careful not to damage the suction sideplate o ring 412C To complete disassembly of power end proceed as follows NOTICE Bearing replacement is recommended whenever bearings are removed from the shaft NOTICE Never use a hammer to drive shaft through bearings Severe shaft and bearing damage may occur 26 Remove the bolts 370B which hold the frame...

Страница 41: ...traighten tang in lock washer 382 and remove bearing lock nut and washer 34 Remove coupling end bearing using a bearing puller Care must be taken to prevent damage to bearings Never use a hammer to drive shaft through bearing Protect bearing from contamination 35 The L group shaft is equipped with two oil flingers 236 If the shaft is being re used the flingers should not be removed as they may be ...

Страница 42: ...sy 317SS A743 GR CG 8M 228A 1 Frame bearing Cast iron A48 CLASS 258 236 2 Flinger Steel A569 241 1 Foot frame Cast iron A48 CLASS 20 251 1 Sight gauge Steel and glass 262 1 Repeller 317SS A743 GR CG 8M 265 4 Stud gland AISI 303 A582 TYPE 303 265A 4 Stud sideplate AISI 303 A582 TYPE 303 274F 1 X Ducer 317SS A743 GR CG 8M 304 1 Nut X Ducer 317SS A743 GR CG 8M 319 1 Sight window Steel and glass 332A ...

Страница 43: ...437 2 Lockwasher frame to foot Steel 494 2 Cooler brg hsg 304SS copper 496 1 O ring brg hsg BUNA 496C 2 O ring x ducer PTFE Table 7 Bearing designation vs pump size and group Pump Size Group Thrust Bearing Radial Bearing 3x6 14XD S SKF BA2B459313 SKF NUP 313ECP 4x8 18HXD M SKF 8317 SKF NUP 317ECP 6x10 18 M SKF 8317 SKF NUP 317ECP 6x10 22HXD M SKF 8317 SKF NUP 317ECP 4x8 24XD L SKF BA24B459422 SKF ...

Страница 44: ...increased to more than 0 050 the shaft sleeve and at times the stuffing box should be replaced Mechanical Seal Lapped seal faces gaskets and shaft sealing members must be in perfect condition or excessive leak age may result Replace worn or damaged parts Ball Bearings Replace if worn loose rough or noisy when rotated Replacement bearings must be of the proper size and type as specified in the cons...

Страница 45: ...ing The M group pump utilizes a Pumpac pair of bearings Refer to bearing chart in Figure 24 for detailed bearing designations Both types of thrust bearings consist of a matched pair of bearings with an arrow scribed on the outer races see Figures 26 27 The arrow must point in the direction of axial thrust i e towards the cou pling end of the shaft An arrow attached to the top of the bearing frame ...

Страница 46: ...be set against the thin wall of the flinger that forms the cylindrical mounting surface see Figure 28 Flip the shaft to place the other end up and install the second flinger in the same manner Figure 28 Shaft flinger installation NOTICE Never use a hammer to drive shaft through bearings Severe shaft and bearing damage may occur S and L Group 1 Refer to Figure 27 for installation of the four point ...

Страница 47: ...possible by hand Place driving sleeve of sufficient length over the shaft The sleeve should contact the in side race of the bearing Be sure the bearing is square on shaft then press or tap the bearing firmly against the shaft shoulder Take care not to mar shaft 9 Place a small amount of o ring lubricant on inside of bearing frame at oil seal Slide shaft assem bly into the bearing frame as far as p...

Страница 48: ...ay damage pump 1 Lubricate suction liner o ring 496A with a silicone based o ring lubricant and install in suction liner o ring groove Also lubricate the bore in the casing which will contact with this o ring Care fully guide the suction liner into casing To facilitate installation liner should be placed with the large diameter held off the floor and the casing lowered over the line Install and ev...

Страница 49: ...iability for avoiding the practice WARNING Before beginning any alignment procedure make sure driver power is locked out Failure to lock out driver power may result in serious physical injury NOTICE Operation of the unit without proper lubrication will cause bearing failure and pump seizure CAUTION Use of couplings which have excessive weight can cause shaft failure and lead to physical in jury Co...

Страница 50: ...ww 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 3500XD en US 2021 09 ...

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