PRODUCT SERVICE MANUAL FOR CIG Lip Seal
Contents
1. OUTLET Ol 45 4 63 3 67 8 12218 IN me A ANY 39 IN pe ZZ SA A RANE ZATE WU TA SANI NERZZI ZA weg BL d MEE IN J7 p LL i ah AS LAA ESSN AES H si vi 2 ai S N NS HEA L V cA CHE d se ES lt 4L ay A NN AN ON IN A W Z PUMP SIZES 2 3 amp 4 SS SS PUMP SIZES 2 3 amp 4 TORQUE TO 12 2 LB IN si VU Z r EE S 5 DE BO 989 TORQUE TO 2432 LB IN NOWO436 PUMP 7 SEE TORQUE CHART INTERNAL DRAIN SUPPLIED ON ALL OW AND DP PUMPS J SS ZEN SX ADS IP 5 J INTERNAL DRAINS PLUGGED X3 TORQUE TABLE S rer ON ALL OW AND DP PUMPS FRAME BOLT PUMP TORQUE lt x l c SIZE SIZE MODIFICATION LB FT Nm QA 4 E W 30 2 41 lt ET AIN S NIS p 4542 61 NG SE ES AL es m ol azzA7 4 RE W 115410 156 K EH aaa im 4 E e EE SSC o I d e p fns fan Ep E TE W 435115 590 p 650420 881 NN N SNO SLAA a ARAN W 870425 1180 N Y SSR EEA eZ 7 8 mao p 1300 25 1763 L NI N SSR SOQ ARN VIEW SHOWING 042 PUMP ANSI RAB LLE gt EI SI Accredited by the Council National Accreditation Program for Accreditation RVA RF U I Imo Pump 1710 Airport Road PO Box 5020 Monroe NC USA 28111 5020 Tel 1 702. B INTRODUCTION This instruction manual covers CIG lip seal and weep hole single pumps This series of pumps has been designed for use in hydraulic lubricating seal and fuel oil applications The model and design construction of each pump can be identified by the designator code on the pump nameplate Definitions of model designators are identified in Figure 1 C DESCRIPTION OF EQUIPMENT The CIG lip seal and weep hole single pumps are positive displacement internal gear pumps consisting of a single shaft that runs through the center of pump housings This shaft drives the external gears pinion gears which in turn drives the internal gears ring gears Fluid is carried between the internal and external gear teeth of each pump and is discharged as the teeth mesh The pinion and ring gears are separated in each pump by a crescent which is a sealing element in the pump between inlet and discharge ports D PUMP MODEL IDENTIFICATION This instruction manual covers the Imo CIG lip seal and weep hole single series pumps The model of each pump is identified on the pump nameplate Refer to Figure 1 for instructional keys when using this manual E ORDERING INSTRUCTIONS When corresponding with Imo Pump regarding CIG Single Series pumps refer to the pump nameplate this instruction manual and the assembly drawing as instructed below 1 From pump nameplate record the pump model number Also record the manufactured lot number and dat
3. 4 3 Stages Optional 5 4 Stages R CW Rotation 6 5 Stages Standard L CCW Rotation Nominal Displacement in CM Rev Figure 1 Single Pump Configuration G PUMP DISASSEMBLY Refer to Assembly 1 for one stage X1 X2 pumps Refer to Assembly 2 for multistage X3 X4 X5 X6 pumps 1 Remove drive key 36 2 Remove capscrews 38 and end cover 15 with O ring 35 3 Remove capscrews 39 and washers 34 Washers not used on single stage units CAUTION ATTENTION direction In next step ring gear 12 pinion 11 and key 13 will be removed If ring 12 and pinion 11 are to be reused identify them with a marker or the like so it can be determined to which housing they belong if there is more than one housing in pump and which direction face of each gear was positioned in housing Do not mark with scribe or punch as this may leave a burr or high spot which could lead to pump damage or seizure If key 13 is to be reused mark it so that it can be assembled into its original stage and facing its original 4 Remove square housing 4 ring gear 12 pinion gear 11 and key 13 from shaft 6 Do not permit dowel pin 37 to drop as housing 4 is removed Remove dowel pin 37 from square housing 4 front cover 1 or back of round housing 3 whichever is applicable NOTE If square gear housing 4 will not slide easily off shaft 6 and pump is a one
4. SLEEVE BEARING If scoring or heavy polishing is present bearing must be pressed out of housing replaced and sized see machining instruction on next page FRONT COVER If faces are scored or heavily scratched they must be machined per machining instructions Check ball bearing seating area in front cover after severe ball bearing failure If ball bearing seating OD is badly scored deburr it before pump assembly LIP SEAL If seal edge is flat or damaged or elastomer is deteriorated replace lip seals MACHINING INSTRUCTIONS The front cover 1 can usually be restored to as new condition by machining damaged faces Sleeve bushings 53 54 and intermediate cover usually require replacement when cover is machined To repair damage to face of front cover Figure 2 on next page and to replace sleeve bushings C proceed as follows 1 Press out sleeve bushing 53 from front or intermediate covers NOTE If pump is equipped with bronze bearing consult factory 2 Place front cover or intermediate cover in a lathe and indicate face A and counter bore B square and concentric with respect to bore C within 0008 inch TIR Machine face A deep enough to remove any scored material Ensure that face is flat within 0008 inch TIR with a 32 micro inch finish CAUTION ATTENTION Being out of flat in excess of 0008 can cause pump failure NOTE If more than 015 is machined removed from face
5. operation of the pump and or pro safety for persons fied by tection of the pump itself are marked by the sign A A CONTENTS SAFETY AND TABLE OF CGONTENT nea GENERAL INSTRUCTIONS sss eee eee INTRODUCTION isinma enpa aa e aaaea a aaa a AA aaa a AAE EREA DESCRIPTION OF EOUIDMENT ener nnnm rennen nnn r herren nnns nnn nnns PUMP MODEL IDENTIFICATION nana ORDERING INSTRUCTIONS ien petere tee i e ted ee e e eee en OPERATION D tte ert edet xr eset dee stet e tive d bv eege bedeite PUMP DISASSEMBLY PROCEDURES sese eee INSPECTION OF PART Stasis ear iere e a eec ede i eel pup deu ade ade dua MACHINING INSTRUCTIONS nnne enters nrr nnn nennen nennen nnns nnn nn nn SPARE PARIS AND KITS aaciaeo rn tette Ue e ERR e RR Pee ege e PUMP REASSEMBLY PROCEDURES sse ener nre trennen 7 11 TROUBEESHOOQO MNG iter te e eet det eee deeds 11 C rR Oeccurqomqmoos NG O ATTENTION If operation of this pump is critical to your business we strongly recommend you keep a Spare pump or major repair kit in stock at all times As a minimum a minor repair kit O rings gaskets shaft seal and bearings should be kept in stock so pump refurbishment after internal inspection can be accomplished A GENERAL INSTRUCTIONS The instructions found herein cover the disassembly assembly and paris identification of CIG lip seal and weep hole design single pumps NOTE Individual contracts may have specific provisions that vary from this manual
6. 87 engages dowel pin hole in front cover 1 and pinion gear 11 installed on shaft 6 is properly positioned to enter gear housing 3 NOTE If single stage pump proceed to Step 31 to complete assembly If multiple stage pump continue below with Step 16 Install O ring 41 on back of first stage gear housing 3 Install housing tube 8 on back of first stage gear housing 3 Install second stage key 13 chamfer side up into keyway on shaft 6 and push it up as far as possible toward drive end of pump NOTE If key 13 has a step install key 13 with step facing up and away from front cover 1 CAUTION ATTENTION When key 13 is installed and pushed up toward drive end there must be an approximately 020 gap between it and front cover 1 face If not it should be removed and a small step filed in the portion of the keyway that sticks above shaft keyway to prevent key 13 from touching front cover 1 face 20 Install second stage pinion gear 11 on shaft 6 Pinion gear 11 should slide freely on shaft 6 and key 21 22 23 24 25 26 13 If not ensure key 13 is properly installed and shaft 6 and pinion 11 keyway are free of burrs Ensure pinion 11 is installed in stage from which it was removed and is facing direction from which it was removed Install ring gear 12 in second stage round gear housing 3 Ensure ring gear 12 is installed in stag
7. A Figure 2 the same amount should be machined removed from G and F Figure 2 4 Press sleeve bushing 53 in from front cover or intermediate cover ensuring that split in bushing 53 is positioned as shown in Figure 2 5 Fabricate a bushing sizing tool as shown in Figure 3 Press sizing tool through bushing from same direction bushing was originally installed to properly size bushing bore Position of Slot in Bushing Figure 2 Front Cover 125 Microinch Finish m A ps aes S 414 ed 078x 45 E5 125 Microinch Finish Case Hardened HRc 60 63 Grind or Polish to 8 Microinch Finish Frame TET OD Size in in In 2 2 284 0 984 0 712 3 2 677 1 181 0 87 4 3 071 1 378 1 1062 5 3 465 1 575 1 382 6 4 252 1 969 1 776 8 5 039 2 362 2 17 Figure 3 Sleeve Bearing 053 054 Sizing Tool J SPARE PARTS AND KITS are on Round Hsg amp Square Hsg IDP Qty Description Seal Kit Shaft Kit Gear Ki SE Ki 1 1 Front Cover 3 Round Housing X 4 1 Square Housing X 6 1 Shaft X 8 1 Housing Tube 9 1 Seal Housing 11 Pinion Gear X X 12 Ring Gear X X 13 Key X 15 1 Rear Cover 31 1 Ball Bearing X 32 2 Outside Seal X 33 1 Bearing Snap Ring X 34 4 Tie Rod Washers 35 1 Rear Cover O Ring X 36 1 Shaft Key X 37 Housing Pin 38 R
8. Should any questions arise which may not be answered by these instructions refer to the Imo General Installation Operation Maintenance and Troubleshooting Manual No SRM00046 provided with your order For further detailed information and technical assistance please refer to Imo Pump Technical Customer Service Department at 704 289 651 1 This manual cannot possibly cover every situation connected with the installation operation inspection and maintenance of the equipment supplied Every effort was made to prepare the text of the manual so that engineering and design data is transformed into the most understandable wording Imo Pump must assume the personnel assigned to operate and maintain the supplied equipment and apply this instruction manual have sufficient technical knowledge and are experienced to apply sound safety and operational practices which may not be otherwise covered by this manual In applications where equipment furnished by Imo Pumpis to become part of processing machinery these instructions should be thoroughly reviewed to ensure proper fit of said equipment into overall plant operational procedures A WARNING If installation operation and maintenance instructions are not correctly and strictly followed and observed injury to personnel or serious damage to pump could result Imo Pump cannot accept responsibility for unsatisfactory performance or damage resulting from failure to comply with instructions
9. assembled Install O ring 35 into rear cover 15 If necessary use a small dab of grease to hold O ring 35 in place Install end cover 15 on square gear housing 4 using capscrews 38 Tighten capscrews 39 with torque wrench to torque values on assembly drawing Install coupling key 36 in keyway of shaft 6 CAUTION ATTENTION Take care not to bump shaft during storage transportation or installation of pump into operating System TROUBLESHOOTING For assistance with troubleshooting see The Imo General Installation Operation Maintenance and Troubleshooting Manual No SRM00046 11 40 REY d E Jl zi VN LR 38 5 da RN N D X2 TORQUE TABLE Iz Cl DNA FRAME BOLT PUMP TORQUE iva WN Ss SIZE SIZE MODIFICATION LB FT N m xor A NN Vus 2 M10 A 30 2 41 ACA a SR RE ZS W OI EI eet W GM 4 M16 115 10 156 GZ EECH e AER E W VAZI V SESA VOZA Ca 5 M20 220415 298 b EE K Ht D AS H SC W Ro 7 L Taa dE 435415 590 I S Ke E Wize 8 mso W 870525 1180 AA ZAZ A OSES SINK P Torts ERR N _ ES TT pe 63 9 36 6 PER PUMP SIZE SEE CHARn a3 on 63 INTERNAL DRAINS SUPPLIED ON ALL OW AND DP PUMPS ONLY INTERNAL DRAINS PLUGGED ON ALL DW AND DP PUMPS ONLY ROY JA N p gi MM IPN ge SE ech VL Lk EE SO fs
10. be reused mark it so that it can be assembled into its original stage and facing its original direction Remove round housing 3 ring gear 12 pinion gear 11 and key 13 from shaft 6 Do not permit dowel pin 37 to drop as round housing 3 is removed Remove dowel pin 37 from either round housing 3 or front cover 1 whichever is applicable NOTE f round gear housing 3 will not slide easily off shaft 6 and this is the last round housing 3 to be removed clamp it in a vice with front cover free 1 With a soft headed hammer tap alternately on mounting ears of front cover 1 to separate it from round housing 3 When there is sufficient gap between front cover 1 and round housing 3 insert wedging device Pry gap intil round housing 3 is free to slide off shaft If there are several round housings 3 to remove clamp pump with a vice with round housings 3 furthest from driver end free Position a wedging device between the round housings Pry gap until rearmost round housing 1 is free to slide off shaft 6 CAUTION ATTENTION Take care not to damage either faces that are being pried against or 0 ring 41 with prying device CAUTION ATTENTION If gear housing 3 will not slide off easily because its bushing 53 was siezed on shaft 6 ball bearing 31 was most likely damaged when housing 8 was pried off and must be replaced If gear housin
11. stage unit clamp square housing 4 in a vise with front cover 1 free With a soft headed hammer tap alternately on mounting ears of front cover 1 until there is sufficient gap to insert a wedging device between the square housing 4 and front cover 1 If pump has more than one stage clamp pump in a vise with square housing 4 free With a soft headed hammer tap on corners of square housing 4 until there is sufficient gap between square housing 4 and back of round housing 3 to insert a wedging device Pry the gap until square housing 4 is free to slide off shaft CAUTION ATTENTION device Take care not to damage either faces that are being pried against or 0 ring 41 with prying CAUTION ATTENTION If gear housing 4 did not slide off easily because its bushing 53 was seized on shaft 6 ball bearing 31 was most likely damaged when housing 4 was pried off and it must be replaced Alternately if gear housing 4 will not slide off easily because its rabbet was jammed in either front cover 1 counter bore if single pump or housing tube 8 if multi stage pump ball bearing 31 may not have to be replaced NOTE If housing 4 ring gear 12 or pinion gear 11 cannot be removed without applying excessive force pump should be returned to Imo for further disassembly and inspection 5 If unit has only one stage proceed to step 9 If pump has more than one stage con
12. 4 289 6511 Toll 1 877 853 7867 Email cc colfaxcorp com COLFAX Fluid Handling 2012 Colfax Fluid Handling all rights reserved ALLWEILER COT PURITECH HOUTTUIN IMO LSC ROSSCOR TUSHACO WARREN
13. COLFAX Fluid Handling PRODUCT SERVICE MANUAL FOR CIG Lip Seal amp Weep Hole Design Single Pump A WARNING The Imo General Installation Operation Maintenance and Troubleshooting Manual No SRM00046 as well as all other component manuals supplied with these type units should be read thoroughly prior to pump installation start up operation maintenance or troubleshooting MANUAL NO SRM00048 REV 03 14 0088 February 2014 Imo Pump 1710 Airport Road PO Box 5020 Monroe NC USA 28111 5020 Tel 1 704 289 6511 Email cc colfaxcorp com Web colfaxcorp com READ THIS ENTIRE PAGE BEFORE PROCEEDING FOR THE SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO THE EQUIP MENT THE FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL A Failure to observe the precautions noted in this box can result in severe bodily injury or loss of life A Failure to observe the precautions noted in this box can cause injury to personnel by accidental contact with the eguipment or liguids Protection should be provided by the user to prevent accidental contact CAUTION ATTENTION Failure to observe the precautions noted in this box can cause damage or failure of the eguipment Non compliance of safety in Safety instructions Safety instructions which shall be structions identified by the fol where electrical safety considered for reasons of safe lowing symbol could affect is involved are identi
14. ction and replacement To assist in assembly wipe all parts with light lubricating oil if appropriate and available to be pumped NOTE Prior to assembly remove all nicks and sharp edges on housings and gears with de burring stone Particular attention should be paid to kidney port chamfers in housings to faces of ring and pinion gears and to areas of housings that were pried apart on disassembly Avoid excessive breaking of edges at outside diameter of ring gear as this could negatively affect flow rate When reinstalling gears in housings be sure gears are installed in housings from which they were removed and face direction from which they were removed Refer To Assembly 1 For One Stage X1 X2 Pumps Refer To Assembly 2 For Multi Stage X3 X4 X5 X6 Pumps 1 Gei 10 11 Press ball bearing 31 onto shaft 6 pressing only on inner race until it contacts its mating shoulder on shaft 6 CAUTION ATTENTION Pressing bearing 31 on via its outer race will likely damage it leading to reduced service life or failure Install ball bearing snap ring 33 onto shaft 6 Press lip seal s one at a time into seal housing 9 or 70 for weep hole design if applicable CAUTION ATTENTION Be sure to press only on outside diameter of lip seal s 32 NOTE Lip seal s 32 must be installed facing direction shown on assembly drawing Wipe small amount of grease
15. e these are stamped on the housing near the nameplate 2 Recordinstruction manual number revision and date 3 From the instruction manual record the figure numbers that apply to the replacement part s 4 Fromthe assembly drawing or instruction manual see Table 1 Pump Parts List provides the IDP number s and names for the replacement part s 5 Give the above information to your Imo service representative Imo sales and service representatives are listed herein and in General Instruction Manual CA 1 1 F OPERATION LIQUID LIMITATIONS Never operate with fluids that are corrosive to iron steel aluminum or bronze The pump is designed for fluids having the general characteristics of oil CAUTION ATTENTION Operating conditions such as speed fluid viscosity temperature inlet pressure discharge pressure filtration duty cycle drive type mounting etc are interrelated Due to these variable conditions the specific application limits may be different from that of the operational limitations This equipment must not be operated without verification that operating requirements are within its capabilities Single Pump Model Key CIG 33 016 R L VD WIR P Standard Viscosity Fluids Series Frame Size W Low Viscosity Fluids 2 3 4 5 6 8 Internal Drain Standard D External drain For High Suction Pressure Pressure Rating 2 Single Stage 3 Two Stages
16. e from which it was removed and is facing direction from which it was removed CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to each housing individually and may not have correct clearances if installed in another housing If gears are installed facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii Install O ring 41 on second stage gear housing 3 Install dowel pin 37 back face of previous stage Install second stage round gear housing 3 with installed ring gear 12 onto shaft 6 Ensure dowel pin 37 engages dowel pin hole in back face of previous stage and pinion gear 11 installed on shaft 6 is properly positioned to enter gear housing 3 Repeat steps 16 through 23 for third and fourth stage round gear housings 3 if applicable Install key 13 for last stage square housing 4 chamfer side up into keyway of shaft 6 NOTE If key 13 has a step install key 13 with step facing up and away from back face of previous stage CAUTION ATTENTION When key 13 is installed and pushed up toward drive end there must be an approximately 020 gap between it and fro
17. each housing individually and may not have correct clearances if installed in another housing If gears are installed facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii 10 29 30 31 32 33 34 35 Install O ring 41 on last stage gear housing 4 Install dowel pin 37 in back of previous stage round housing 3 Install last stage square gear housing 4 with installed ring gear 12 onto shaft 6 Ensure dowel pin 37 engages dowel pin hole in back face of previous stage round housing 93 and pinion gear 11 installed on shaft 6 is properly positioned to enter gear housing 4 Install washers 34 on capscrews 39 with chamfer on washers 34 facing head of capscrews 39 Install capscrews 39 with washers 34 installed and tighten with torque wrench to torque values on assembly drawing Torque one half value for all capscrews first then torque to full specified torque value Capscrew tightening pattern should be across opposite corners for both half torque and full torque tightening CAUTION ATTENTION With capscrews 30 torqued to full value pump shaft must turn freely by hand and without significant internal snagging Otherwise unit has not been properly
18. ear Cover Bolts 39 4 Tie Rod Bolts 41 Housing O Ring X 42 4 Seal Housing Bolts 50 1 Seal Spacer 51 1 Inboard Seal X 53 Sleeve Bushing X X 69 1 Weep Hole Spacer 70 1 Seal Housing Weep Hole Design Housings and gears cannot be sold separately since they are matched sets Table 1 Pump Parts List K REASSEMBLY OF PUMP CAUTION ATTENTION READ THIS ENTIRE PROCEDURE BEFORE ASSEMBLING PUMP NOTE Inspect all running surfaces for scratching scoring and wear prior to assembly of pump Minor scratching is acceptable If parts are heavily scratched or scored they should be replaced Thoroughly clean all pump components WARNING Follow the suppliers recommendations when using cleaning fluids NOTE or lip seal is damaged it must be replaced Imo Pump recommends replacement of all O rings lip seals and ball bearing every time these parts are disturbed from their original installed position If O rings and lip seals are in general not to be replaced they must be thoroughly inspected for nicks cuts or other damage If any individual O ring CAUTION ATTENTION be replaced do not install lip seal until told to do so If ball bearing 31 was removed from shaft 6 it must be replaced Lip seal 32 must also 7 NOTE Refer to Inspection of Parts for additional information on part inspe
19. ed remove spacer 50 or 69 if weep hole design and then remove and discard lip seal 51 INSPECTION OF PARTS ate BALL BEARING Ball bearings should be free turning and quiet Their grease should have a soft consistency and not look or smell burned GEAR FACES Some light scratching is acceptable but if there is any scoring the part should be replaced These faces cannot be ground to remove a heavy score mark because their width is critical to performance of pump Grinding more than several ten thousandths of an inch will cause low capacity If the face is not flat pump seizure could occur NOTE sings are provided witRework other than light stoning or cleaning of gears or gear housings is not 8 recommended New gear houh sleeve bearing factory installed RING GEAR OD Light scratching and polishing is acceptable If scoring is present ring gear should be replaced HOUSING a Faces Some light scratching is acceptable but if there is any scoring the part should be replaced b Crescent This piece should be checked for gouges or scoring If the marking is severe housing should be replaced ID If any scoring is present housing should be replaced SHAFT Check shaft for wear particularly areas where lip seals and bushings are located when pump is assembled Any heavy wear is cause for shaft replacement Check edges of keyways for cracks chipping or rounding If any of these exists shaft should be replaced
20. g 3 will not slide off easily because its rabbet was jammed in either front cover 1 counterbore it single pump or housing tube 8 if multi stage pump ball bearing 31 may not have to be replaced NOTE If housing 3 ring gear 12 or pinion gear 11 cannot be removed without applying excessive force unit should be returned to Imo for further disassembly and inspection Repeat steps 6 amp 7 until all round housings 3 are removed Remove O ring 41 from front cover 1 if it did not come off with last housing removed Remove capscrews 42 from seal housing 9 or 70 if weep hole design see assembly drawing inset Remove shaft 6 from front cover 1 Removal of shaft also removes seal housing 9 or 70 if weep hole design outside lip seals 82 where applicable ball bearing 31 and bearing retaining ring 33 CAUTION ATTENTION Be sure that all gear keys 13 are removed before removing shaft 6 If not the front cover 1 face will be damaged Remove seal housing 9 or 70 if weep hole design with lip seals 32 if applicable from shaft 6 4 13 14 15 If lip seals 32 are to be replaced remove them from seal housing 9 or 7 if weep hole design and discard If ball bearing 31 is to be replaced remove snap ring 33 from shaft 1 press ball bearing 31 off shaft 1 and discard If inside lip seal 51 is to be replac
21. ge pinion gear 11 on shaft 6 Pinion gear 11 should slide freely on shaft 6 and key 13 If not ensure key 13 is properly installed and shaft 6 and pinion 11 keyway are free of burrs Ensure pinion 11 is installed in stage from which it was removed and is facing direction from which it was removed 12 13 14 15 16 CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to each housing individually and may not have correct clearances if installed in another housing If gears are installed facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii Install ring gear 12 in first stage square gear housing 4 if single stage unit or round gear housing 3 if multi stage unit Ensure ring gear 12 is installed in stage from which it was removed and is facing direction from which it was removed if pump has more than one stage CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to each housing individually and may not have correct clearances if installed in another housing If gears are ins
22. nt cover 1 face If not it should be removed and a small step filed in the portion of the keyway that sticks above the shaft keyway to prevent key 13 from touching front cover 1 face 27 Install pinion gear 11 for square housing 4 on shaft 6 Pinion gear 11 should slide freely on shaft 6 and key 13 If not ensure key 13 is properly installed and shaft 6 and pinion 11 keyway are free of burrs Ensure pinion 11 is installed in stage from which it was removed and is facing direction from which it was removed CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to each housing individually and may not have correct clearances if installed in another housing If gears are installed facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii 28 Install ring gear 12 in last stage square gear housing 94 Ensure ring gear 12 is installed in stage from which it was removed and is facing direction from which it was removed CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to
23. on edges of lip seal s 32 for lubrication Wipe small amount of grease on edge of inside lip seal 51 and install lip seal 51 in front cover 1 Be sure lip is facing direction shown on assembly drawing Install seal spacer 50 or 69 if weep hole design into front cover Frame size 2 and 3 standard design pumps do not have this spacer If spacer 50 is on standard design pump it will have a counter bore which must be installed facing toward seal housing 9 Install shaft 6 assembly with ball bearing 31 and snap ring 33 into front cover 1 Install O ring 40 onto seal housing 9 rabbet or in seal housing 70 groove whichever is applicable Install seal housing 9 or 70 for weep hole design in front cover 1 and secure with capscrews 42 Torque capscrews with torque wrench to torque values on assembly drawing Install first stage key 13 chamfer side up into keyway of shaft 6 and push it up as far as possible toward drive end of pump NOTE If key 13 has a step install key 13 with step facing up and away from front cover 1 CAUTION ATTENTION When key 13 is installed and pushed up toward drive end there must be an approximately 020 gap between it and front cover 1 face If not it should be removed and a small step filed in the portion of the keyway that sticks above shaft keyway to prevent key 13 from touching front cover 1 face Install first sta
24. talled facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii Install O ring 41 on first stage square gear housing 4 if single stage unit or round gear housing 3 if multi stage unit Ensure ring gear 12 is installed in stage from which it was removed and is facing direction from which it was removed if pump has more than one stage CAUTION ATTENTION If gears are installed in wrong housing pump may not perform properly or may seize during operation This is because gears are matched to each housing individually and may not have correct clearances if installed in another housing If gears are installed facing wrong direction pump may not perform properly or may seize during operation This is because some gears have chamfers on only one side These chamfers must be positioned facing inside of housing so that there will be no interference with housing radii Install O ring 41 on first stage square gear housing 4 if single stage unit or round gear housing 3 if muti stage unit Install dowel pin 37 in front cover 1 Install first stage gear round gear housing 3 or square gear housing 4 if single stage pump with installed ring gear 12 onto shaft 6 Ensure dowel pin
25. tinue with step 6 6 Remove housing tube 8 Remove O rings 41 from rabbets on square housing 4 and round housing 3 NOTE Neither housing tube 8 nor O ring 41 need be removed from round housing 3 unless O rings 41 are to be replaced Replacing O rings is good practice when a pump is disassembled after extended service or if damaged during disassembly T 12 CAUTION ATTENTION In next step ring gear 12 pinion 11 and key 13 will be removed If ring 12 and pinion 11 are to be reused identify them with a marker or the like so it can be determined to which housing they belong if there is more than one housing in pump and which direction face of each gear was positioned in housing Do not mark with scribe or punch as this may leave a burr or high spot which could lead to pump damage or seizure If key 13 is to be reused mark it so that it can be assembled into its original stage and facing its original direction CAUTION ATTENTION In next step ring gear 12 pinion 11 and key 13 will be removed If ring 12 and pinion 11 are to be reused identify them with a marker or the like so it can be determined to which housing they belong if there is more than one housing in pump and which direction face of each gear was positioned in housing Do not mark with scribe or punch as this may leave a burr or high spot which could lead to pump damage or seizure If key 13 is to
Download Pdf Manuals
Related Search