I&O Manual - HD Series Pumps
Contents
1. Description Dowel Pin ap Screw quare Key iming Gears riven Shaft Armco 17 4PH ear Key ap Screw mpeller Key mpeller Key s Cl S L s CI D L 5 55 S L ers SS D L ive Shaft mco 17 4PH et Screw CI et Screw SS Hex Head Bolt Grease Fitting Bearing Cover Lock Nut Lock Washer Ball Bearing Lip Seal ring Carrier crew C CI 55 3 E 3 3 D 3 EI a E p Armco 174P E NC NN WN oS item Description __ mepaeGS Hex Head Bolt Pipe Plug C a Pego impelierHousing ss fc Du Bushing YS Carbon Bushing 31 stud wo 34 35 Gpsew 72 37 38 39 40 4 d 6 45 qWse 8 Note Exact quantities will vary depending upon actual pump model CI are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specity pump model serial number part number amp part name Page 13 of 39 70 120A and 330 Pumps Isometric Drawings Models Starting w 05 amp Mech Seals 35 s E s 5 V j vs2. pe Es E 22 E Be 15 General Parts List for 70 120A and 330 Pumps GO Description Dowel Pin ap Screw quare Key iming Gears riven Shaft Armco 17 4PH ear Key ap Screw mpeller Key mpeller Key s Cl S L s CI D L 5 55 S L ers SS D L ive Shaft mco 17 4PH et Screw CI et Screw SS Hex Head Bolt Grease Fitting Bearing Cover Lock Nut Lock Washer Ball Bearing Lip Seal ring Carrier crew C CI 55 3 E 3 3 D 3 WN oS Faceplate fa Faceplate SS EBEN BEEN Description HexHeadBot Lip Seal PipePlug ss Note Exact quantities will vary depending upon actual pump model are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specify pump model serial number part number amp part name Page 15 of 39 Disassembly amp Reassembly 70 120A amp 330 Pumps Minor Disassembly for Fluid Chamber Inspection 1 Aa UJ on Remove all burrs on drive shaft with a file or emery paper Also check for any deposit of paint Special
3. Tutriding Interference Fit Gears 27 Special U Cup Lip Seals 8 Miscellaneous DIGITS 11 amp 12 1 02 Etc Serialized at the factory DIGIT 13 If Required D Double Lobe Available on ID models only T PTFE housing and faceplate bushings SD Models WN QS eo e ELS D WN D eo nr oj c Page 5 of 39 8 pJepuels sduing a ng Ui pas uaque sduing 104 ssulysng azuoJg sduing s mn 40J ssulysng piepuels SL Jed 067 Ddy 91 191949 10 SL 1999 puepuels ase pue ayejdane4 20 seas 110 ld 35P pue aje da2e4 10 Seas 10 piepuejs ase 2272277 SL 1235 pue ajejdare4 10 5 95 0 pJepuels S 9ySet ad0y 9 9109 SJySeo pai 5589 3414 ILJEN 19 55 sduing S S Ul sgurysng 10410 dwaj ug sduing S S ui sauiusng uoqje plepuels Page 6 of 39 Viton and PTFE oil seals can be used in place of standard oil seals upon request PTFE and Gore Tex gaskets can be used in place of standard seals upon request Note WARNING Failure to follow these instructions could result in serious bodily injury or death Do not attempt to work on any Tuthill pump installation before completing the steps below Disconnect the drive so that i
4. owes 1 p E dE NE NE EE L 3 2 po AsReg 20 2 Shim P Shi 2 2 1 2 2 2 1 4 2 2 2 2 2 2 2 As Req escription aceplate aceplate SS ex Head Bolt pe Plug Cl ipe Plug SS Ring ore Tex Gasket mpeller Housing CI mpeller Housing SS ousing Bushings 1 DU Bushing 55 Carbon Bushing cking acking Gland CI lit Glands for SS 2 Ti 23 5 6 8 9 0 2 WN cx CE Nut CI Nut SS Lip Seal Spacer Roller Bearing Cap Screw Bearing Housing Pipe Plug CI Pipe Plug SS Gear Case Gasket Gear Case Cover Cap Screw Vented Pipe Plug Nametag rive Screw 2 lt 3 3 3 0 2 44 c Note Exact quantities will vary depending upon actual pump model CI are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specity pump model serial number part number amp part name Page 11 of 39 70 120A and 330 Pumps Isometric Drawing Models Starting w 05 amp Tuffseals N en N N N General Parts List for 70 120A and 330 Pumps GO
5. Version 1 8 Install lip seals 10 in faceplate 23 in bottom of bearing bores on bearing bridge Install faceplate bearings 27 in bearing bores Before installation pack bearings with grease If Packing is used reference assembly on page 10 Insert packing 36 and glands 42 in seal chambers on faceplate Also reference Page 34 for additional packing information If TuffSealls are used reference assembly on page 12 Install Tuffseals onto impeller stuffing boxes Use the gland washers and nuts 30 to hand tighten the seal glands to the stuffing boxes Do not fully tighten the nuts Also reference Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 14 Press in the stationary seal seat into the mechanical seal gland if replacing the seal or re use the existing one Have the seal bodies and seal glands nearby as those will have to be slipped onto the shafts as one is assembling the shafts through the impeller faceplate Loosen the pipe plugs 34 so one will have access to the mechanical seal set screws in order to set the correct working height of the seal Also reference Page 35 for additional mechanical seal information Insert impeller amp shaft assemblies threaded portion 1st through stuffing box packing mechanical seal body seat Tuffseals seal gland and inner race of faceplate bearing V rings should also be installed while inserting the shafts Bewa
6. make sure the mechanical seals and the glands are guided through the shafts as they are installed Apply even pressure when pushing the shaft through the seal as to not damage the O rings or seal bellows Once the entire pump is re assembled and the correct end clearance is set reference the correct working length of the seal Mark the shaft through the stuffing box access port where the correct working length would be on the shaft Move the seal body to that mark and tighten the seal setscrews This sets the correct working height of the mechanical seal Please reference the seal s manual for the correct working height Install the seal gland and seal gland gasket to the stuffing box Tighten the nuts to the seal gland Page 35 of 39 Torque For Shaft Locknuts Industrial Models Torque ft Ibs 70 120A 330 amp 600 120 125 Torque For Faceplate Bolts Faceplate Qty amp Pump 199 Screw Type of Metal Applied Torque ft lbs 1 2 Socket Head 11 8 LG P104 1S4 Note 7 Hex Head 1 4 LG P104 4H Note 1 70 120 12 Hex Head 1 LG P104 2H Note 1 14 Socket Head 1 72 LG P105 78 Note 2 Note SAE grade 5 steel Min tensile strength of 105 000 PSI heat treated medium carbon High carbon alloy quenched and tempered Min tensile strength of 160 000 PSI Grade 316 stainless steel Serial Number Location The serial number will be located on th
7. HE Page 37 of 39 Troubleshooting No fluid is delivered Power is not on Net positive suction head available NPSHa is lower than required for the vapor pressure of the liquid pumped You should calculate NPSHa and redesign piping if necessary There are leaks in suction line Direction of shaft rotation is incorrect Relief valve setting is too low if the pump is equipped with a relief valve Liquid is discharging through the by pass port Capacity is too low There are air leaks in suction line Suction losses are too high The suction lift is too great or the suction line is too small or too long This can be detected by installing a vacuum gauge directly at the pump suction The maximum vacuum at the pump suction should never exceed 15 of mercury Vaporization caused by higher vacuums will generally result in capacity drop off Redesign suction conditions Pump speed is too slow Strainer is too small or obstructed e Suction pipe or port is not immersed in liquid deep enough Piping is improperly installed permitting an air pocket to form in the pump e Increased clearances or wear in the pump will sometimes cause the pump to deliver an insufficient supply of liquid Version 1 8 Pump works spasmodically Leaky suction lines Suction conditions vary Air or vapor is in the liquid Problem Excessive power draw Pressure is too high Liquid is more viscous than
8. Joints should be Staggered and kept at least 90 apart Each individual ring should be firmly seated with a tamping tool Never depend entirely on the gland to seat a set of packings This practice will jam the last rings installed but leave the front rings loose The result is excessive and rapid wear After last ring is installed tighten gland nuts finger tight Then start pump and take up nuts until leakage is decreased Stopping leakage at this point will cause packing to burn If temperature rises in seal area back off on packing nuts as this indicates excessive gland pressure Allow packing to leak freely for at least one hour when starting up a newly packed pump Take up gland nuts gradually 1 16 turn every 5 10 minutes until leakage stabilizes at about 3 5 drops per minute If temperature in seal area increases back off and start over Note Replace packing when leakage cannot be controlled by further take up of gland Test results indicate that 70 of the wear occurs on the first two rings of packing nearest the gland Rings next to the gland work the hardest The rings in the bottom of the stuffing box serve to throttle some fluid pressure On abrasive service the bottom ring takes most of the beating Therefore this ring should be a firm ring How to Pack for Abrasive Liquids As used here Abrasives is a broad term intended to cover the problem of packing against slurries congealing liquids and the likes They cause
9. Mn N IR TO T ler Key Cl ler Key SS t Screw pellers Cl S L WN C c SS 5 1 D L rive Shaft Armco 17 4PH ear Key WN a alo 2 lt p Seal earing Spacer Eye Bolt Roller Bearing Timing Gear Dowel Pin metag Screw ented Pipe Plug ear Case ear Case Gasket ex Head Bolt ear Case Cover pe Plug rease Fitting ex Head Bolt 6 Ww k co Seal Gland Gasket c co co 25 Note Cl are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specify pump model serial number part number amp part name Page 27 of 39 WARNING Failure to follow these instructions could result in serious bodily injury or death Do not attempt to work on any Tuthill pump installation before completing the steps below Disconnect the drive so that it cannot be started while work is being performed Review the Material Safety Data Sheet MSDS applicable to the liquid being pumped to determine its characteristics and the precautions necessary to ensure safe handling Vent all pressure within
10. Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 25 Remove pipe plugs 34 from impeller housing stuffing boxes This allows access to the mechanical seal set screws holding the seal to the shaft Mark the shaft where the mechanical seal is so that the correct seal working length can be referenced upon re assembly Then loosen the mechanical seal set screws Loosen the mechanical seal gland nuts 30 and allow the mechanical seal gland to be loose on the housing Thus when the shafts are pulled out of this area when removing the faceplate assembly the gland will not fall off Allow it to hang loosely the studs Also reference Page 35 for additional mechanical seal information Remove hex head bolts 25 on outboard side of faceplate Make note on which side the drive shaft is located for reassembly Remove entire faceplate by sliding away from impeller housing CAUTION Faceplate assembly will be heavy and not balanced Use proper lifting methods This assembly includes the impellers and shafts installed in the faceplate Do not disturb the bearing covers 26 on the bearing bridge on the faceplate These covers hold the adjustment of clearance of the impeller in relation to the fluid chamber If further disassembly is required refer to major disassembly Version 1 8 age 200 Fluid Chamber Check Points Procedure No 1 Check for twisted shaft UJ A
11. Spin the pump drive shaft several times to be certain that there is no interference from incorrect timing Apply grease to gasket seal surface on gear case Press gasket in place The same gasket is used on both impeller housing and gear Case 10 Slide gear case cover over shafts being certain that drive shaft bore in cover is properly positioned in relation to drive shaft CAUTION go Take care in sliding lip of oil seal over drive shaft If proper care is not taken the lip will be damaged and oil leakage will result 11 Tighten six cap screws holding gear case cover in place 12 A If Packing is used reference assembly on page 10 Install new packing in seal chambers and tighten packing gland nuts to finger tightness If pump is equipped with mechanical seals install them according to the seal instructions and reference 12c for general instructions Also reference Page 34 for additional packing information B If Tuffseals are used reference assembly on page 12 Use the seal spacers to set the right collar location After setting the end clearances tighten the gland nuts and then collar set screws to lock the seal collar onto the shaft Finally turn the spacers away from the collar so they will not interfere with it during operation Also reference Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 14 Position the mechanical seal body axially on the shaft us
12. fluid chamber side of faceplate 12 Remove the two double row faceplate ball bearings 27 from the bearing carriers 29 Then remove lip seals 10 and check condition Replace if required 13 If the shaft or impeller needs to be replaced remove two set screws 5 from each impeller hub Then press shafts through impellers by placing impeller and shaft assembly in press with threaded stub shaft up Remove impeller keys 4 Version 1 8 Page 31 of 39 Reassembly 1 A Install impellers onto shafts non galling impellers ductile iron Apply lubricant to shaft end on which impeller fits White lead is recommended Slip impeller on shaft from the threaded stub shaft end Install steel woodruff impeller key Align keyway in impeller with woodruff impeller key Press impeller into proper position and install setscrews as tight as possible The dimensions shown below are given from the shoulder on the shaft to the nearest flat face on the hub of the impeller B Install impellers onto shafts For galling impellers Stainless Steel Impellers must be shrunk on the shafts due to galling properties of the material Heat impellers to 500 550 F for 1 1 2 2 hours Quickly assemble shaft and impeller with keys in place into proper position according to the dimensions from above Allow cooling Pump Impeller Location inches kw E WARNING Wear heat resistant gloves when handling hot components ZA UJ e
13. impellers and housing prevents fluid flow return Version 1 8 Page 3 of 39 HD Models 1 1 2 Top 1 1 2 Front 40 75 48 SameAsAbove eo 9 22 aso 75 90 48 256 511 1276 511 67 5 133 67 5 135 247 675 135 2 135 337 666 27523 450 450 ll 2 5 at ea a gt lt a gt gt 8 450 450 70A 120A 600 450 9915 5 Material of Construction Page 4 of 39 HD Process Pump Numbering System ptt 2 stat 5 oe PtP et oP opm el Be DIGITS 1 amp 2 O1 INDUSTRIAL DUTY O5 INDUSTRIAL DUTY O2 STANDARD DUTY O4 STANDARD DUTY ID ID Only Models with SD Ductile Iron Only SD Stainless Steel Only DIGITS 3 amp 4 01 02 ode 03 05 odel 120A 14 odel 330 26 odel 600 04 316 Stainless Steel 01 04 amp 05 Models 09 Ductile Iron 01 02 amp 05 Models 0 Internal Std on ID models External NPT Standard on SD models 0 No Relief Valve 1 Relief Valve Available on all SD models amp ID models 30 2 70A 120A DIGITS 9 amp 10 01 Hot Clearance 02 Special Shaft Materi Packing Packing Configuration nical Seals Bushings 10 Special Clearances 13 Steam Jacket Tracing 19 Special Ports Flanged etc
14. originally expected Suction or discharge line is obstructed There is insufficient horsepower There are mechanical defects Drive shaft and pump are misaligned Pump is binding due to incorrect clearance setting Pump shaft is bent Misalignment due to bad piping poor installation causing strain or distortion Pump is noisy Pump is cavitating due to inadequate suction conditions There is misalignment of coupling Coupling is set too close to pump There is vibration of the pump due to a worn or bent shaft There are air leaks on suction side of pump or air entrainment in the fluid Pump leaks Bolts need tightening allowing gaskets or O rings to leak Gaskets or O rings are damaged Note Packings are designed to leak Leakage should be at a rate that will prevent excessive heating on the bracket at the packing area Page 38 of 39 Material Returns If it becomes necessary to return a pump to the factory a Return Goods Authorization RGA must be obtained from either your local Authorized Distributor or our Alsip plant No RGA can be issued until a completed Material Safety Data Sheet MSDS has been forwarded to our Alsip plant and return of the pump has been approved Tuthill pumps are precision built and must be handled with care Pumps must be drained of all fluid and the ports plugged to prevent foreign material from getting into the pump Pumps must be packaged securely to prevent damag
15. the ATEX Directive 94 9 EC for use in Category Group 2 G applications Read this manual before operating or working on the HD Series pumps If additional information is required to facilitate operation or maintenance contact the authorized Tuthill distributor shown at the back of this service manual HD Series pumps have been designed and manufactured to provide years of service under normal operating conditions Illustrations used in this manual are for reference purposes only Consult the factory or an authorized Tuthill distributor for proper part identification When ordering replacement parts provide as much detail as possible to ensure correct parts are provided Details should include the full model number typically 12 13 digits but can be 18 digits serial number name of part part number if known and part material Service Manual 71 for the HD Series pumps is available at www tuthillpump com The materials furnished for each pump are selected to suit individual applications WARNING Failure to follow these instructions could result in serious bodily injury or death Do not attempt to work on any Tuthill pump installation before completing the steps below Disconnect the drive so that it cannot be started while work is being performed Review the Material Safety Data Sheet MSDS applicable to the liquid being pumped to determine its characteristics and the precautions necessary to ensure safe handling Vent all pressure within
16. the greatest damage to equipment and present difficulties for packing In general this involves flush purges and temperature control Hard facing on the shaft seal surfaces such as stellite or ceramic are also recommended When pumping slurries and abrasives an external source of clear or otherwise suitable liquid must be force fed at a pressure higher than that existing in the stuffing box This differential pressure is in the area of 10 25 psi Suspended Solids Solids which are suspended in liquids and which are an inherent part of their structure would include starch clay slurry muddy water and other similar slurries This is best handled by an external flush of clear liquid through a lantern ring as shown This arrangement will result in a small amount of product dilution and is controlled by the differential pressure in the seal chamber Version 1 8 Page 34 of 39 Installing Tuthill TuffSeall Cartridge Seals 1 a Uu e Once pump is fully disassembled shafts are removed from the impeller housing and faceplate one can dean stuffing box and shafts thoroughly and examine shaft for wear or scoring Check bearings for wear as this can cause an eccentric shaft rotation resulting in excessive leakage If shaft surface is worn replace shaft or have seal surface area resurfaced Install new Tuffseal Cartridge seals to the impeller housing and faceplate by fitting the studs into the seal gland slots Then install the washers and nu
17. the pump through the suction or discharge lines All Tuthill pumps contain residual hydraulic oil from the factory production test Determine if this is compatible with the fluid you are pumping If the fluid is incompatible then the pump must be fully flushed prior to use Ifthe pump is to be operated at elevated temperatures the pump should be brought up to operating temperatures gradually Rapid or sudden introduction of liquids at elevated temperatures into the cold liquid chamber of the pump could cause damage to pump externals seals or other internal parts Pumps can run dry provided provisions are made for the mechanical seal if one is used Failure to comply with this could cause severe damage to the mechanical seal parts Pump needs to be earthed separately to avoid a buildup of electro static charge Disassembly amp Reassembly for Model 600 Pumps Minor Disassembly For Fluid Chamber Inspection Remove all burrs on drive shaft with mill file or emery paper Also check for deposit of paint Special care should be taken around the keyway and beveled corner on the drive shaft These two areas are normally where burrs appear Burrs or paint will cause an obstruction in the bushing area Drain oil from gear case by removing lower drainpipe plug Remove cap screws 23 on face of gear case cover Remove gear case cover 22 by sliding over shafts If the timing gears 14 are slip fit on the shafts Mark gears so that in reass
18. the shaft provides proper lubrication to the packing Pump packings have a lubricant which acts as a primary sealant for the start up and break in phases during which this lubricant acts to reduce friction Once the pump is on the line external lubrication must be supplied to the packing to keep it running properly and to attain longer life If external lubrication is not supplied the lubrication in the packings will bleed out due to heat generation Heat is a primary cause of packing failure Pumps with packing will require periodic adjustment To accomplish this gently and evenly tighten the packing gland nuts which will further compress the packing Do not over tighten Packing is designed to keep leakage to a slight weep Normally 2 3 drops per minute is acceptable If excessive leakage persists after complete adjustment consider re packing the stuffing box or using another packing type Lubrication Requirements Faceplate Bearings The faceplate bearings are greased Grease should be added to faceplate bearings when oil is changed Add grease through fitting until new grease can be seen exiting under lip seal where shaft enters bearing Bearings are designed to provide a minimum L10 life of 15 000 hours at maximum speed and pressures conditions Housing Bushing Housing bushings are fully lubricated by the pumped fluid and are maintenance free Gear Case Bearings Bearings are designed to provide a minimum L10 life of 15 000 hours at ma
19. 0 Pumps Description Lock Lock Washer Driven Shaft 2 am 3 Mn 3 WN c 3 3 3 jus 3 3 Ee 5 Wn lt gt pe ive Shaft o 17 4PH Key Cl Key SS D CA an l I WN irc ers po 55 D L I Nut 55 x BE GEO MERE mco 17 4PH Pipe Plug SS 5 6 Tuffseal 1 2 Ww earing Spacer 4 oller Bearing iming Gear owel Pin metag ive Screw ented Pipe Plug ear Case ear Case Gasket ex Head Bolt ear Case Cover ipe Plug rease Fitting ex Head Bolt 6 co gt No 25 k Note Cl are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specify pump model serial number part number amp part name Page 25 of 39 UOISI9A te for foe se joe es or ec sc sjeas SO M Sunaejs sjopojy 54 4 009 General Parts List for Model 600 Pumps Description Lock Nut Lock Washer Driven Shaft ES 3
20. Fl Tuthill Installation and Service Instructions HD Series Pumps Version 18 Excellence at work Excellence in life Table of Contents 3 General Description 3 Pumping 3 4 HD Process Pump Numbering 5 5 Temperature Limits of HD Process Pump 6 LOS 7 Packing 8 Lubrication 8 Lubrication Instructions for Tuthill Process 8 70A 120A and 330 Pumps Isometric Drawing Models Starting w 05 10 General Parts List for 70A 120A and 330 Pumps 11 70A 120A and 330 Pumps Isometric Drawing Models Starting w 05 amp 5 5 12 General Parts List for 70A 120A and 330 5 13 70A 120A and 330 Pumps Isometric Drawings Models Starting w 05 amp Mech 5 5 14 General Parts List for 70A 120A and 330 Pumps 15 Disassembly amp Reassembly for 70A 120A amp 330 Pumps 16 Fluid Chamber Check 16 Major Disassembly Instructions 19 eate der cna gi a 19 C
21. Place faceplate group upright in vise Caution Use soft jaws to prevent damage to the gasket seal surfaces Tighten jaws on sides of bearing bridge Install carbon steel gear keys on an angle Angle is to hold gears from sliding down on shaft Slide proper timing gear on drive shaft revolving shaft to align key with gear keyway taking precautions that the timing marks are face out and aligned There are two punch marks appearing on the gear on the drive shaft and one punch mark on the mating tooth on the driven shaft Turn impellers to the position shown below If the dimension Xis the same as dimension Y then there is no shaft damage If there is a variation then the shaft is twisted or the impeller keys may be sheared Disassemble in accordance with major disassembly instructions If the impeller keys are sheared install new keys and recheck for twisted shaft Procedure No 2 Install new gears 1 2 2 4 5 6 7 Place faceplate group in vise and install woodruff keys as in Procedure No 1 Slide gear on driven shaft aligning keyway of gear with woodruff key on shaft Position impellers as shown in the sketch in Procedure No 1 with dimension X the same as dimension Slide timing gear on drive shaft and align keyway in gear with woodruff key in shaft and mesh gears Recheck dimension X and dimension Y to be certain that they are the same Mark gears as indicated in Procedure 1 Slide gears off shaf
22. SN oe sc sc irc 2 m so Sunueis sjapoyy Sunped yum Sumeaq 009 General Parts List for Model 600 Pumps Description Lock Lock Washer Driven Shaft 0 17 4PH Key Cl Key SS Qty 3 S EXE 3 D 5 9 3 e 3 3 c WIT Cy C LSS wa Oo irc 3 pellers rive Shaft mco 17 4PH po 55 D L jus 5 6 A sets 7 1 2 Ww earing Spacer 1 16 4 4 43 V Ring 4 oller Bearing iming Gear owel Pin metag ive Screw ented Pipe Plug ear Case ear Case Gasket ex Head Bolt ear Case Cover pe Plug rease Fitting ex Head Bolt 6 co N c co co 25 k Note Cl are Cast Iron pumps that will have corresponding steel and or ductile iron components SS are Stainless Steel pumps that will have corresponding stainless steel components Recommended spare parts are in bold text When ordering spare parts please specify pump model serial number part number amp part name Page 23 of 39 600 Pumps Isometric Drawing Models Starting w 05 amp Tuffseals e Re 1139 Version 1 8 General Parts List for Model 60
23. acking information B If Tuffseals are used reference assembly on page 12 Make sure the Tuffseal on the impeller housing side is ready to accept the shafts and that the collar set screws are unscrewed enough so that the shafts can slide through the collars easily Also reference Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 14 Make sure the mechanical seal bodies in the impeller housing stuffing boxes are ready to accept the shafts and that the seal set screws unscrewed enough so that the shafts can slide through the seals easily Also reference Page 35 for additional mechanical seal information After checking for burrs insert shafts through housing bushing packing glands mechanical seals Tuffseals and gear case bushings V rings should also be installed while inserting the shafts Be aware that the V rings need to be slid onto the shafts because of their snug fit re UJ Note Insert drive shaft in the same position as when disassembled 4 Tighten cap screws which hold the faceplate in place Install carbon steel gear keys in shaft keyways Slip proper timing gear on driven shaft Slip timing gear on the drive shaft rotating shaft to align key with gear keyway taking precautions that the timing marks are face out and aligned There are two punch marks appearing on the gear on the drive shaft and one punch mark on the mating tooth on the driven shaft
24. bly 1 A Install impellers onto shafts For non galling impellers ductile iron Apply lubricant to shaft end on which impeller fits White lead is recommended Slip impeller on shaft from the threaded stub shaft end Install stainless steel woodruff impeller key Align keyway in impeller with woodruff impeller key Press impeller into proper position and install setscrews as tight as possible The dimensions shown below are given from the shoulder on the shaft to the nearest flat face on the hub of the impeller B Install impellers onto shafts For galling impellers Stainless Steel Impellers must be shrunk on the shafts due to galling properties of the material Heat impellers to 500 550 F for 1 2 2 hours Quickly assemble shaft and impeller with keys in place into proper position according to the dimensions from above Allow cooling CAUTION Wear heat resistant gloves when handling hot components Install lip seals 18 in faceplate 22 in bottom of bearing bores on bearing bridge 19 Install faceplate bearings 17 in bearing bores Before installation pack bearings with grease If Packing is used reference assembly on page 10 Insert packing 29 and glands 30 in seal chambers on faceplate Also reference Page 34 for additional packing information B If Tuffseals are used reference assembly on page 12 Install Tuffseals onto impeller stuffing boxes Use the gland washers 45 and nuts 32 to hand tighten the seal glan
25. care should be taken around the keyway and beveled corner on the drive shaft These two areas are normally where burrs occur Burrs or paint will cause an obstruction in the bushing area Drain oil from gear case by removing lower drain plug 38 Remove six cap screws 41 on face of gear case cover 40 Remove gear case cover by sliding over shafts If the timing gears 4 are a slip fit on the shafts Check that the gears have the correct timing marks before removal If necessary mark them again Remove the gears by loosening the setscrews There two in each gear Then slide gears off drive end of shaft f gear keys are sheared a gear puller may be required NOTE Mark gears so that in reassembly the gears may be remounted on the shafts from which they were removed Remove two gear keys 6 If interference fitted IF timing gears 4 are furnished Check that the gears have the correct timing marks before removal If necessary mark them again IF gears do not have setscrews First attempt to remove them can be can be made with a standard gear puller If the gear puller was not successful in removing the gears heat the gear OD with a torch and use a hydraulic jack to remove the gears NOTE Mark gears so that in reassembly the gears may be remounted on the shafts from which they were removed Remove two gear keys 6 WARNING Wear heat resistant gloves when handling hot components 6 If Packing is used re
26. ction and Repair Should it be necessary to remove the pump from service for periodic inspection of components and or a major repair the following steps should be taken See following pages for exploded pump views and instructions WARNING Failure to follow these instructions could result in serious bodily injury or death Do not attempt to work on any Tuthill pump installation before completing the steps below Only authorized personnel who are familiar with the repair of mechanical products should perform the necessary repair work You must familiarize yourself with the entire contents of this manual prior to performing any work Disconnect the drive so that it cannot be started while work is being performed Review the Material Safety Data Sheet MSDS applicableto the liquid being pumped to determine its characteristics and the precautions necessary to ensure safe handling Vent all pressure within the pump through the suction or discharge lines Ensure that the pump has cooled to a safe temperature prior to performing any work on the pump Page 9 of 39 70 120A and 330 Pumps Isometric Drawing Models Starting w 05 amp Packing Version 1 8 General Parts List for 70 120A and 330 Pumps Dowel Pin Timing Gears O2 Driven Shaft TT mop Gay 2 Ooo ImpllerKy C fo 2 ImplereyS Impellers sL f 2 0 Impellers DL f o ImplesGSSL Impellers SS DL fo o o 1
27. d be made to safeguard against flooding When handling high viscosity liquids the speed of the pump must be reduced and the size of the inlet lines increased to prevent cavitation Refer to the NPSHr data for the pump Pumps should be filled with liquid at installation The placement of a strainer on the suction side of the pump will restrict any solids or abrasives from entering the pump which could cause internal damage Under no conditions should the pump be used to support external piping loads weight or expansion Piping and other equipment should be independently supported Piping strain can result in misalignment hot bearings worn couplings vibration etc It is important that the piping used be clean and free of chips and scales The discharge line must be designed with the maximum pressure rating of the pump in mind Excessive pressure could cause damage to your motor and or pump If a pressure relief valve has not been supplied with the pump some other means of pressure protection must be utilized This could include in line safety valves pressure shutdown switches or other similar devices Pumps are positive displacement pumps and must be used in conjunction with a pressure relief mechanism Every pump installation should have a good foundation Its structure should be sufficiently strong to hold the pump rigid and to absorb any strain or shock that may be encountered The installation should be leveled checked for proper piping alignmen
28. ds to the stuffing boxes Do not fully tighten the nuts Also reference Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 14 Press in the stationary seal seat into the mechanical seal gland if replacing the seal or re use the existing one Have the seal bodies and seal glands nearby as those will have to be slipped onto the shafts as one is assembling the shafts through the impeller faceplate Loosen the pipe plugs 24 so one will have access to the mechanical seal set screws in order to set the correct working height of the seal Also reference Page 35 for additional mechanical seal information Insert impeller and shaft assemblies threaded portion first through stuffing box packing mechanical seal body and seat Tuffseals seal gland and inner race of faceplate bearing Secure assemblies in this position by tightening the faceplate bearing lock nuts 15 V rings 25 should also be installed while inserting the shafts Be aware that the V rings need to be slid onto the shafts because of their snug fit Insert bearing cover 14 in place and tighten bearing hex head bolts 12 The impeller and shaft assemblies are now secure in the faceplate Check the clearance with a feeler gauge between the machine face of the faceplate and the flat surface on the lobe of the impeller This setting clearance will vary with the material of construction and pumping temperature See chart below for the
29. e pump nameplate In addition the serial number may be located on the impeller housing top port Please furnish this number when ordering parts Pumps with the built in pressure relief valve must have a top suction port Page 36 of 39 Common Causes of Pump Problems Possible Causes Suggested Solutions Reduce vacuum pressure of liquid requirements Reduce pump speed Air leakage in suction piping Tighten and seal all joints Lengthen suction pipe or add immersed in liquid liquid to supply tank Clean strainer or of insufficient area use larger size Re align Check coupling and driver alignment with dial indicator Disassemble and inspect Pipe strain on pump casin Disassemble pipe and i pump 5 re align before reassembling Relief valve chattering a ae Check for obstructions in Excessive system pressure discharge line Stuffing box packed too tightly Repack and adjust Pump speed to low Check pump impeller speed Have pump reconditioned or Pump parts worn replace worn parts Check discharge piping and valves for obstruction Wrong direction of rotation Reverse moto Suction line sized too small Increase suction piping size Torque control coupling not adjusted Leakage Loses Prime Excessive Gland Starts Then Takes Too Much Obstruction in discharge line Readjust coupling 5 gt 5 e 2 5 EHE EE BEN ENS PEN X u NE
30. e while in transit Warranty Tuthill Pump Group warrants its products against defective material and workmanship for 90 days from the date of startup or one year from date of shipment from Tuthill s plant whichever comes first This warranty does not include products damaged by tampering improper installation abuse or wear Nor does it cover consequential damages or other losses due to pump failure Because of the unpredictable nature of fluids encountered pumps are not warranted for any specific life Tuthill Pump Group USA United Kingdom China Excellence at work Excellence in life www tuthillpump com
31. eat resistant gloves when handling hot components 7 Install the timing gear the driven shaft first making sure that the timing marks are facing outward Assure that the driven gear has cooled before installing the drive gear Match the timing gears and install the drive gear Rotate the shafts after the gear cools to assure the correct timing of the impellers If timing is correct apply grease to gasket seal surface on gear case Press gear case gasket in place Slide gear case cover over shafts being certain that drive shaft bore in cover is properly positioned in relation to drive shaft Then tighten cap screws holding gear case cover in place CAUTION Take care in slipping lip of oil seal over drive shaft If proper care is not taken the lip will be damaged and oil leakage will result 10 A If Packing is used reference assembly on page 23 Install new packing in seal chambers and tighten packing gland nuts to finger tightness If pump is equipped with mechanical seals install them according to the seal instructions and reference 12c for general instructions Also reference Page 34 for additional packing information If TuffSealls are used reference assembly on page 23 Use the seal spacers to set the right collar location After setting the end clearances tighten the gland nuts and then collar set screws to lock the seal collar onto the shaft Finally turn the spacers away from the collar so they will not in
32. embly the gears may be remounted on the shafts from which they were removed Remove the gears by loosening the setscrews There are two in each gear Then slide gears off drive end of shaft If gear keys are sheared a gear puller be required Remove two woodruff gear keys 8 If interference fitted IF timing gears 14 are furnished Mark gears so that in reassembly the gears be remounted on the shafts from which they were removed IF gears do not have setscrews First attempt to remove them can be can be made with a standard gear puller Check that the gears have the correct timing marks before removal If necessary mark them again If the gear puller was not successful in removing the gears heat the gear OD with a torch and use a hydraulic jack to remove the gears WARNING Wear heat resistant gloves when handling hot components 6 A If Packing is used reference assembly on page 22 Remove packing gland nuts 30 and slide packing gland 42 out of the way Then remove packing 36 from both seal chambers in the impeller housing If pump is equipped with mechanical seals see below for general instructions and refer to the seal instructions that were shipped with the pump Also reference Page 34 for additional packing information If Tuffseals are used reference assembly on page 23 Loosen Tuffseal set screws that lock the cartridge seal s collar onto the shaft on the impeller housing side Also reference
33. equipped with mechanical seals refer to the seal instructions that were shipped with the pump Also reference Page 34 for additional packing information B If TuffSealls are used reference assembly on page 23 Loosen Tuffseal set screws that lock the cartridge seal s collar onto the shaft Also reference Page 35 for additional TuffSeall information If mechanical seals are used reference assembly on page 25 Remove pipe plugs 34 from impeller housing stuffing boxes This allows access to the mechanical seal set screws holding the seal to the shaft Mark the shaft where the mechanical seal is so that the correct seal working length can be referenced upon re assembly Then loosen the mechanical seal set screws Loosen the mechanical seal gland nuts 30 and allow the mechanical seal gland to be loose on the housing Thus when the shafts are pulled out of this area the gland will not fall off Allow it to hang loosely on the studs Also reference Page 35 for additional mechanical seal information 10 Remove six hex head bolts 25 Remove bearing covers 26 Press tines of lock washers 2 out of grooves on lock nut 1 Remove lock nut 11 Remove bearing carrier 29 and bearing 27 CAUTION Note the shims that are placed between bearing carrier 29 and faceplate 33 If shafts and impellers are not replaced these shims must be returned to the same position from which they were removed Now slide impeller and shaft assembly out through the
34. ference assembly on page 10 Remove packing gland nuts 32 and slide packing gland 30 out of the way Then remove packing 29 from both seal chambers in the impeller housing If pump is equipped with mechanical seals see below for general instructions and refer to the seal instructions that were shipped with the pump Also reference Page 34 for additional packing information If Tuffseals are used reference assembly on page 12 Loosen Tuffseal set screws that lock the cartridge seal s collar onto the shaft on the impeller housing side Also reference Page 35 for additional Tuffseal information C If mechanical seals are used reference assembly on page 14 Remove pipe plugs 24 from impeller housing stuffing boxes This allows access to the mechanical seal set screws holding the seal to the shaft Mark the shaft where the mechanical seal is so that the correct seal working length can be referenced upon re assembly Then loosen the mechanical seal set screws Loosen the mechanical seal gland nuts 32 and allow the mechanical seal gland to be loose on the housing Thus when the shafts are pulled out of this area when removing the faceplate assembly the gland will not fall off Allow it to hang loosely on the studs Also reference Page 35 for additional mechanical seal information Remove hex head bolts 23 on outboard side of faceplate Make note on which side the drive shaft is located for reassembly Remove entire faceplate assembly by slidi
35. hamber 21 600 Pumps Isometric Drawing with Packing Models Starting w 05 22 General Parts List for Model 600 23 600 Pumps Isometric Drawing Models Starting w 05 amp 5 5 24 Version 1 8 General Parts List for Model 600 25 600 Pumps Models Starting w 05 amp Mech 5 15 26 General Parts List for Model 600 27 Disassembly amp Reassembly for Model 600 Pumps 28 Fluid Chamber Check 29 Reassemble Accordance With Minor Reassembly 30 Major Disassembly Instructions 31 c cn MH 31 Chamber 32 33 Torque For Shaft 05 35 Torque For Faceplate 805 35 Common Causes of Pump amp 36 Troubleshooting sss 37 Material 2 38 Lour M 38 Contact 38 Page 2 of 39 Introduction The HD Series pumps have been certified to the requirements of
36. ing stuffing boxes are ready to accept the shafts and that the seal set screws are unscrewed enough so that the shafts can slide through the seals easily Also reference Page 35 for additional mechanical seal information After checking for burrs insert shafts through housing bushing packing glands mechanical seals Tuffseals and gear case bushings V rings 43 should also be installed while inserting the shafts Be aware that the V rings need to be slid onto the shafts because of their snug fit Note Insert drive shaft on same side as when disassembled Tighten cap screws which hold faceplate in place Slip fit timing gears Install carbon steel gear keys in shaft keyways Slip proper timing gear on driven shaft Then slip timing gear on drive shaft revolving shaft to align woodruff key with gear keyway taking precautions that the timing marks are face out and aligned These marks are two center punch marks on the gear on the drive shaft and one center punch mark on the mating tooth cavity Then turn pump drive shaft over several times to be certain that there is no interference from being out of time Tighten setscrews on shaft Then install locking setscrew Interference fitted timing gears Make sure that gears are properly marked with the timing marks and that the bores and keyways are free of burrs Repair as necessary Heat the gears to 500 F 550 F in an oven for 40 minutes Add keys to the drive and driven shafts WARNING Wear h
37. ing the previous mark that was made during disassembly After setting the end clearances tighten the seal set screws to the shaft Install the mechanical seal gland back into the impeller housing stuffing box and tighten the gland nuts 32 Re install the pipe plugs 24 Also reference Page 35 for additional mechanical seal information 13 Install the drainpipe plug 14 Remove oil level plug and fill gear case with lube oil see lube oil chart page 8 9 to the oil level hole 15 Install and tighten fill plug and oil level plug 16 Spin the assembled pump several times to be certain that there is no interference from incorrect timing If no interference is apparent then the pump is ready to be put back in service Version 1 8 Page 18 of 39 Major Disassembly Instructions The first seven steps are the same as in the minor disassembly procedure The major disassembly involves the disassembly of the faceplate group 8 Place faceplate group ina vise CAUTION Use soft vise jaws to prevent damage to gasket seal surface 9 10 11 12 13 14 15 16 17 18 Version 1 8 A If Packing is used reference assembly on page 10 Remove packing gland nuts 32 and slide packing gland 30 out of the way Then remove packing 29 from both seal chambers on faceplate If pump is equipped with mechanical seals refer to the seal instructions that were shipped with the pump Also reference Page 34 for additional packing informati
38. ng away from impeller housing CAUTION Faceplate assembly will be heavy and not balanced Use proper lifting methods This assembly includes the impellers and shafts installed in the faceplate DO NOT DISTURB the bearing carrier 19 on the bearing bridge on the faceplate These caps hold the adjustment of the clearance of the impellers in relation to the fluid chamber If further disassembly is required refer to major disassembly instructions Version 1 8 Page 16 of 39 Fluid Chamber Check Points Procedure No 1 Check for twisted shaft 1 Place faceplate group upright in vise CAUTION Use soft jaws to prevent damage to the gasket seal surfaces Tighten jaws on sides of bearing bridge 2 Install carbon steel gear keys on an angle Angle is to hold gears from sliding down on shaft 3 Slide proper timing gear on drive shaft revolving shaft to align key with gear keyway taking precautions that the timing marks are face out and aligned There are two punch marks appearing on the gear on the drive shaft and one punch mark on the mating tooth on the driven shaft 4 Turn impellers to the position shown below If the dimension X is the same as dimension Y then there is no shaft damage If there is a variation then the shaft is twisted or the impeller keys may be sheared Disassemble in accordance with major disassembly instructions If the impeller keys are sheared then install new keys and recheck for twisted shaft Pr
39. ocedure No 2 Install new gears Place faceplate group in vise and install keys as in Procedure No 1 Slide gear on driven shaft aligning keyway of gear with woodruff key on shaft Position impellers as shown in the sketch in Procedure No 1 with dimension X the same as dimension Y Slide timing gear on drive shaft and align keyway in gear with woodruff key in shaft and mesh gears Recheck dimension X and dimension Y to be certain that they are the same Mark gears as indicated in Procedure No 1 and slide gears off shafts and follow minor reassembly instructions Procedure No 3 Install new bushings Disassemble in accordance with minor disassembly instructions Press worn bushing from impeller housing and gear case and press new bushings in impeller housing Press bronze bushings in gear case and remove expansion plug in gear case cover Press out worn bushings and press new bushings in gear case cover CAUTION If impeller housing bushing is steel backed PTFE do not ream Check gearcase lip seals and bearings for damage Replace parts as necessary Version 1 8 Page 17 of 39 Reassemble Accordance with Minor Reassembly Instructions Apply grease to gasket seal surface on impeller housing Then press gasket in place Grease is used to hold gasket in position A If Packing is used reference assembly on page 10 Place packing glands in seal chambers in housing Also reference Page 34 for additional p
40. on B If Tuffseals are used reference assembly on page 12 Loosen Tuffseal set screws that lock the cartridge seal s collar onto the shaft Also reference Page 35 for additional Tuffseal information If mechanical seals are used reference assembly on page 14 Remove pipe plugs 24 from impeller housing stuffing boxes This allows access to the mechanical seal set screws holding the seal to the shaft Mark the shaft where the mechanical seal is so that the correct seal working length can be referenced upon re assembly Then loosen the mechanical seal set screws Loosen the mechanical seal gland nuts 32 and allow the mechanical seal gland to be loose on the housing Thus when the shafts are pulled out of this area the gland will not fall off Allow it to hang loosely on the studs Also reference Page 35 for additional mechanical seal information Remove six bearing hex head bolts 12 Remove the two bearing covers 14 Remove the two faceplate bearing locknuts 15 Slide impeller and shaft assembly out through the fluid chamber side of faceplate Remove the two ball bearings 17 from the bearing bridge on faceplate Check condition of lip seals 18 and replace if required Remove the two setscrews 11 from each impeller hub Press shafts through impellers by placing impeller and shaft assembly in press with threaded stub shaft up Remove woodruff impeller keys CD om CD I CD Page 19 of 39 Reassem
41. proper setting clearance This clearance is checked by revolving the impeller and shaft 360 while checking the clearance at multiple positions All other clearances are automatically set if this clearance is correct Version 1 8 Page 20 of 39 Chamber Clearances Faceplate gaskets compress to approximately 003 004 inches when pump bolts are tightened For impeller assembly settings and resultant clearances see below A IMPELLER SETTING D RESULTING PASS MODEL MATERIAL CLEARANCE RADII CLEARANCES SIDE OPPOSITE SIDE OVER Models 70A amp 120A 0060 0 05 00 09 00 009 005 Hot 05 05 06 00 000 Model 330 UNUM Hot 09 0500 09 0150 0110 0050 010 205 06 05 05 09 09 06 C Single Lobe Impeller Housing FacePlate Mating Impeller 8 If the impellers are properly set on the shaft to dimensions from step 1 then the initial setting clearance will always be too large Thus to move the impeller to the proper setting add shims between bottom of bearing bore and the bearing outer race The following shims are available Red 002 Blue 005 Pink 015 9 Grease faceplate bearings thru fittings on bearing caps 10 For the remaining reassembly procedure refer to steps 1 16 in Minor Reassembly Instructions Page 21 of 39 UOISI9A jer e for n sc
42. re the V rings 43 need to be slid onto the shafts because their snug fit Secure assemblies in this position by tightening faceplate amp bearing lock nuts 1 Insert bearing covers 26 place and tighten bearing hex head bolts 25 The impeller and shaft assemblies are now secure in the faceplate Check the clearance with a feeler gauge between the machine face of the faceplate and the flat surface on the lobe of the impeller This setting clearance will vary with the material of construction and pumping temperature See chart below for the proper setting clearance This clearance is checked by revolving the impeller and shaft 360 while checking the clearance at multiple positions All other clearances are automatically set if this clearance is correct Page 32 of 39 Chamber Clearances Faceplate gaskets compressed to approximately 003 004 inches when pump bolts are tightened Impeller assembly settings and resultant clearances see below MODEL 600 A IMPELLER B RESULTING C ON RADII D RESULTING MATERIAL SETTING SIDE SIDE CLEARANCE PASS OVER CLEARANCES OPPOSITE SIDE Standard 0060 0065 000 100 0100 20035 Hot 000 09 00 00 fomo ooo 00 Gall 0 05 05 05 0000 00 090 0090 05 05 05 956 09 09 Single Lobe Impeller Housing FacePlate Mating Impeller 8 If the impellers are properly set on the shaft to dimen
43. sions from step 1 then the initial setting clearance will always be too large Thus to move the impeller to the proper setting add shims between bottom of bearing bore and the bearing outer race The following shims are available e Red 002 e Blue 005 e Pink 015 9 Grease faceplate bearings thru fittings on bearing caps 10 For the remaining reassembly procedure refer to steps 1 16 in Minor Reassembly Instructions Page 33 of 39 Packings Installing Packings in Pumps 1 N W A Remove all old packing using a packing hook Clean stuffing box and shaft thoroughly and examine shaft for wear or scoring Check bearings for wear as this can cause an eccentric shaft rotation resulting in excessive leakage Packings will not act as a bearing If shaft surface is worn replace shaft or have seal surface area resurfaced Be certain the proper size packing is used The following packing sizes will apply 7 16 Square 860 Se a re eo fen Always cut packings into separate rings Never coil around shaft standard factory packings are pre cut and pre formed If bulk packing is used cut each ring on a mandrel the same size as the pump shaft Try rings in stuffing box to be certain that each ring fills the seal chamber and that there is no gap between packing joints Install one ring at a time seating each ring independently Use clean oil to lubricate shaft and inside of stuffing box
44. t and then fastened securely The alignment should be rechecked after the pump s temperature has reached its operating temperature Direct drive through a traditional flexible coupling is recommended However do not expect the coupling to compensate for misalignment Contact the coupling manufacturer to determine the maximum amount of misalignment that the coupling can be subjected to Never operate the pumps without all the guards in place Direction of Flow Tuthill Industrial Process Pumps may be operated in either direction The direction of flow is dependent on the direction of rotation of the pump drive shaft When facing the drive shaft of the pump a clockwise rotation provides a top suction port and a bottom discharge port This applies to Model 30A 2A 3A 70A 120A 330 Pumps Pages 10 12 amp 14 Model 600 Pumps are equipped with a vertical shaft arrangement Page 22 24 amp 26 On these models a clockwise drive shaft rotation will provide a left hand suction port and a right hand discharge port Flow would be from left to right when facing the drive shaft Version 1 8 Page 7 of 39 Packing Adjustment WARNING Packing is designed to leak Therefore when pumping hazardous liquids a mechanical seal is recommended to minimize any potential source of leakage that could result in a hazardous condition All packings must leak to perform properly Their purpose is to control leakage not to prevent it The slight leakage along
45. t cannot be started while work is being performed Review the Material Safety Data Sheet MSDS applicable to the liquid being pumped to determine its characteristics and the precautions necessary to ensure safe handling Vent all pressure within the pump through the suction or discharge lines All Tuthill pumps contain residual hydraulic oil from the factory production test Determine if this is compatible with the fluid you are pumping If the fluid is incompatible then the pump must be fully flushed prior to use Ifthe pump is to be operated at elevated temperatures the pump should be brought up to operating temperatures gradually Rapid or sudden introduction of liquids at elevated temperatures into the cold liquid chamber of the pump could cause damage to pump externals seals or other internal parts Pumps can run dry provided provisions are made for the mechanical seal if one is used Failure to comply with this could cause severe damage to the mechanical seal parts Pump needs to be earthed separately to avoid a buildup of electro static charge Installation For optimum pump performance the suction line must be at least as large as the corresponding pump port It should be as short as possible in order to avoid excessive pressure drops and must be airtight Locate the pump as close to the source of supply as conditions permit and if possible below the level of the liquid in the reservoir When necessary to locate the pump in a pit provisions shoul
46. terfere with it during operation Also reference Page 35 for additional Tuffseal information C If mechanical seals are used reference assembly on page 25 Position the mechanical seal body axially on the shaft using the previous mark that was made during disassembly After setting the end clearances tighten the seal set screws to the shaft Install the mechanical seal gland back into the impeller housing stuffing box and tighten the gland nuts 32 Re install the pipe plugs 24 Also reference Page 35 for additional mechanical seal information 11 Install drainpipe plug Remove oil level plug Fill gear case with lube oil see lube chart on page 889 until oil comes out oil level hole Then install and tighten fill plug and oil level plug 12 Spin the assembled pump several times to be certain that there is no interference from incorrect timing If no interference is Version 1 8 apparent the pump is ready to be put back in service Page 30 of 39 Major Disassembly Instructions The first seven steps are the same as in the minor disassembly procedure The major disassembly involves the disassembly of the faceplate group 8 Place faceplate group vise CAUTION Use soft vise jaws to prevent damage to gasket seal surface 9 A If Packing is used reference assembly on page 23 Remove packing gland nuts 30 and slide packing gland 42 out of the way Then remove packing 36 from both seal chambers on faceplate If pump is
47. the pump through the suction or discharge lines All Tuthill pumps contain residual hydraulic oil from the factory production test Determine if this is compatible with the fluid you are pumping If the fluid is incompatible then the pump must be fully flushed prior to use If the pump is to be operated at elevated temperatures the pump should be brought up to operating temperatures gradually Rapid or sudden introduction of liquids at elevated temperatures into the cold liquid chamber of the pump could cause damage to pump externals seals or other internal parts Pumps can run dry provided provisions are made for the mechanical seal if one is used Failure to comply with this could cause severe damage to the mechanical seal parts Pump needs to be earthed separately to avoid a buildup of electro static charge General Description The design of the Tuthill Industrial Series incorporates externally timed impellers that are supported in the fluid chamber by double row ball bearings located out of the product stream This design enables the industrial Series to handle highly viscous abrasive slurries corrosive acids or suspended solids without degradation aeration or contamination of the product Pumping Principle Here is How it Works Rotating impellers develop a vacuum at inlet drawing material into the cavity positive action of the impellers displaces material forcing discharge at pump outlet Ports are always open sealing action between
48. ts and follow minor reassembly instructions Procedure No 3 Install new bushings W Disassemble in accordance with minor disassembly instructions Press worn bushing from impeller housing and gear case Press new bushings in impeller housing Press bronze bushings in gear case Remove expansion plug in gear case cover Press out worn bushings and press new bushings in gear case cover Check gear case lip seals and bearings for damage Replace parts as necessary CAUTION If impeller housing bushing is steel backed PTFE do not ream Version 1 8 Page 29 of 39 Reassemble Accordance With Minor Reassembly n Apply grease to gasket seal surface on impeller housing Then press impeller housing gasket in place Grease is used to hold gasket in position A If Packing is used reference assembly on page 23 Place packing glands 42 in seal chambers of housing 40 Also reference Page 34 for additional packing information B If Tuffseals are used reference assembly on page 23 Make sure the TuffSeall on the impeller housing side is ready to accept the shafts and that the collar set screws are unscrewed enough so that the shafts can slide through the collars easily Also reference Page 35 for additional Tuffseal information C If mechanical seals are used reference assembly on page 25 Make sure the mechanical seal bodies in the impeller hous
49. ts to hold the seal gland onto the stuffing box These nuts should be tightened finger tight so that the seal assembly can move when the shafts are being installed During re assembly lubricate both of the seal s O rings to and make sure the shafts are guided through the Tuffseal collar Apply even pressure when pushing the shaft through the seal as to not damage the collar O rings Once the entire pump is re assembled make sure the collar shoulder is seated against the seal spacers Tighten the seal gland nuts to secure the Tuffseal to the stuffing box After the pump s end clearance is set then tighten the collar setscrews evenly to the shaft Rotate the spacers away from the collar so that they will not rub against any rotating component when the seal is operating Installing Mechanical Seals in Pumps General 1 Version 1 8 Once pump is fully disassembled shafts removed from the impeller housing and faceplate can dean stuffing box and shafts thoroughly and examine shaft for wear or scoring Check bearings for wear as this can cause an eccentric shaft rotation resulting in excessive leakage If shaft surface is worn replace shaft or have seal surface area resurfaced Install new stationary seal seat into the mechanical seal gland Use a seal lubricant to aid in pressing the seat into the gland Do not scratch or score the seal face during this process as it will result in leak During re assembly
50. ximum speed and pressures conditions and are splashed lubricated Lubrication Instructions for Tuthill Process Pumps The oil in the gear case of the process pumps is Lubriplate APG9 a trade name of Fiske Brothers Refining Company Toledo Ohio Oil specifications are as follow Viscosity at 100 F 816 SSU Viscosity at 212 F 86 550 API Gravity 26 5 Flash Point 39 F Fire Point 440 F Extreme Pressure Additives Any 90 weight gear oil may be substituted if equivalent to above The grease used in the faceplate ball bearing of the Industrial Series pump is Lubriplate 1200 2 Grease specifications are as follows NLGIL 2 Work Penetration 280 A S T M Dropping Point 450 Minimum Oil Viscosity at 100 F 950SSU Water resistant with rust and corrosion inhibitors added Any 2 bearing grease may be substituted if equivalent to above Version 1 8 Page 8 of 39 The following charts on lubrication requirements are offered as a guide only Common sense approach to preventative maintenance must be exercised for best pump service life Ambient conditions temperature humidity dust etc can alter schedule Gearcase Total Grease Capacity Model No Capacity CC First Oil ee Hrs Subsequent Change Hrs Per Lem CC __ E 1900 3000 jo 1 uo so J gm os If temperature exceeds 350 F use the following Oil Specification Lubriplate APG 250 or equal Bearing Grease 930 or equal Inspe
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