PRODUCT SERVICE MANUAL FOR C324AXFS-250
Contents
1. COLFAX Fluid Handling ALLWEILER COT PURITECH HOUTTUIN IMO LSC ROSSCOR TUSHACO WARREN PRODUCT SERVICE MANUAL FOR C324AXFS 250 12004 PUMP A WARNING This Instruction Manual and General Instructions Manual SRM00046 should be read thoroughly prior to pump installation operation or maintenance of Pump SRM00109 Rev 01 12 0241 JUNE 2012 READ THIS ENTIRE PAGE BEFORE PROCEEDING FOR THE SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO THE EQUIPMENT THE FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL A DANGER Failure to observe precautions noted in this box can result in severe bodily injury or loss of life A WARNING Failure to observe the precautions noted in this box can cause injury to personnel by accidental contact with the equipment or liquids 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 equipment Non compliance of safety Safety instructions Safety instructions which instructions identified by where electrical safety shall be considered for the following symbol is involved are reasons of safe operation of could affect safety for identified by the pump and or protection persons of the pump itself are marked by the sign A AN ATTEN2. Repeat above procedure for outboard end cover 15 following directions outlined in Figure 3 When correct adjustment is confirmed for the outboard end cover proceed to Step 5 before final installation of outboard cover 15 Q Y Below E yass I9 Er FT 25 KEZ af fee fe ee Figure 2 Set Adjustment Screws Inboard End Using a parallel bridge measure and record distances Q and X on inboard end cover 17 Subtract Q from X and add 009 23 mm 60 of gasket 4 thickness to this number Make sure drive end rotor housing 8 flange is fully seated in pump case 1 locating band counter bore Measure and record Y If housing end face is below case end face add distance Y to total distance X Q 009 23 mm If housing end face is above case end face subtract this distance Y from total distance X Q 009 23 mm Set adjusting screws to this distance from housing end face to adjusting screw end face 10 W Above eS hoi gy Ge Figure 3 Set Adjustment Screws Outboard End Measure and record distance Z of flange face of outboard end cover 15 to counter bore face Add 009 23 mm 60 of gasket 4 thickness to this number Make sure non drive end rotor housing 10 flange is fully seated in case 1 locating band counter bore Measure and recor
3. Imo Sales Office or representative at the Technical Customer Service Department in Monroe NC USA Most pumps have repair kits available Minor Repair Kits are used to repair leaking seals bad bearings and or for re assembly after pump tear down They include as applicable pump shaft seals packing all gaskets O rings and bearings Major Repair Kits are sufficient to rebuild completely worn out pumps to as new condition They include all parts found in Minor Repair Kits plus all major internal parts subject to wear Since kits have all necessary parts it is preferred that they be purchased rather than selecting individual parts When parts are individually selected from Parts List some needed components are often overlooked In addition mixing worn or used parts with new parts risks rapid wear and shortened service life from new parts 12 INLET TORQUE TO CAUTION REMOVE CENTERING CLIPS 200 10 LB FT BEFORE STARTING PUMP san TOROUE TO ss UTION WHEN ASSEMBLING 316 STAINLESS CUP POINT SET SCREWS AND REPLACE ITH HARDENED CUP POINT S 2009 Beke O OO O SECTION B B Oe OOO peepee 727 NN S N 2 VAN EAN Ne NY 015 Vee ZZe eA Wn SSCA 4 LT Ji ne WE ate B Ai IN eas N I a B 2 SECTION A A 2 Q Q 2 gt Ie TORQUE TO 30 2 LB FT ADJUST SHIM TO ACHIEVE AXIAL END PLAY SHOWN ASSEMBLY C324AXFS 250 12004 874 LBS SF66I5 13 MECHA NICA L SEAL REMOVE GASKET SUPPLIED BY MECHANICAL SEAL MANUFACTU
4. BEGIN PUMP DISASSEMBLY Note Disassembly and assembly steps are for pump types listed in this manual Part numbers correspond to assembly drawings for each step except where noted Refer to Figure 1 for pump identification and model designator definitions The model of each pump is identified on the pump nameplate Step 1 De energize driver lock and tag OUT OF SERVICE Close isolation valves and drain piping Remove shaft coupling Remove pump coupling hub and key 29 Step 2 Remove Chesterton 180 Cartridge mechanical seal 27 per instructions outlined in Servicing Mechanical Seal Section 1 1 Step 3 Remove outboard end cover bolts 2 and remove outboard end cover 15 and gasket 4 from pump case 1 The outboard end board cover weight is approximately 131 lbs 59 5 Kg A 13 UNC 2B tap is provided for lifting lug installation Step 4 Grasp power rotor 13 and pull idler rotors 14 and power rotor 13 from non drive end rotor housing 10 CAUTION DO NOT permit idlers 14 to drop as they emerge from housing 10 NOTE As rotors slide from housing wrap the rotors with a sling to prevent accidental dropping and to assist in holding the rotors in mesh for easy removal Step 5 Remove inboard end cover bolts 2 and remove inboard end cover 17 and gasket 4 from pump case 1 Two jacking bolt taps are provided to assist in removing cover The cover weight is approximately 118 lbs 53 5 Kg A 1 2 13 UN
5. C 2B tap is provided for lifting lug installation Removal of inboard end cover 17 will include bushing 18 anti rotation pins 96 bushing insert 57 and bushing capscrews 95 Remove bushing capscrews 95 from inboard end cover 17 Lightly tap or evenly press bushing 18 from inboard end cover 17 Remove bushing insert 57 from bushing 18 Step 6 Remove plugs 7 from case 1 Remove anti rotation pins 11 match marking each one to identify correct installation position and angle Each pin is fitted to its housing during assembly If new housings are to be installed new anti rotation pins are required for correct fitting Thread a 3 8 16 inch bolt in end of stop pin to assist in removal CAUTION DO NOT drop housings as they emerge from case Step 7 Note Slide inboard rotor housing 8 from inboard end of pump case 1 Slide outboard rotor housing from outboard end of pump case 1 Removal of rotor housing will include housing adjusting screws 19 and jam nuts 25 If a major kit is to be installed it is not necessary to disassemble thrust collar 16 woodruff key 26 and shim 36 from power rotor 13 or adjusting screws 19 and jam nuts 25 from rotor housings 8 amp 10 All of these items are included in the major kit J PUMP ASSEMBLY PROCEDURE Notes Step 1 Step 2 Step 3 Step 4 Prior to reassembly of pump all parts should be cleaned and inspected for nicks and burrs Repl
6. DRIVE END XX 0010 1 S904EAB ROTOR HOUSING NON DRIVE END XX 0011 2 S836BMX9 PIN STOP XX 0013 1 DSC250HK ROTOR POWER XX 0014 2 RSC250HE IDLER ROTOR XX 0015 1 S903EJ END COVER 0016 1 S810E COLLAR XX 0017 1 S902EP END COVER 0018 1 S907EC BUSHING XX 0019 4 S936EE ADJUSTING SCREW XX 0025 4 PPOO1BFA 14 NUT HEX JAM 7 8 14 XX 0026 1 PPO30DA 4 KEY WOODRUFF 1 2 X 1 8 XX 0027 1 PPO46KNK SEAL 1 500 CH 180 12 X 0028 2 PPO7OAE 8 PLUG 1 2 SHP SS 0029 1 PPO29EB 40 KEY 3 8 SQ X 2 1 2 ALLOY 0036 1 S823EAP SHIM XX 0057 1 S806EH INSERT BUSHING XX 0095 2 PPOO3DCB 16 CAP SCR SOCH SLF LKG 1 4 20 X 1 0096 2 PPO35CB 5 PIN STRAIGHT 1 8 X 5 16 0098 4 PPOO2ABH 8 WASHER HARDENED CIRCULAR 0100 2 PPO7O0AA 4 PLUG PIPE SOC HD 1 4 X Minor Repair Kit Item XX Major Repair Kit Item Items marked X are included in Major Repair Kit H H 1 H 2 H 3 PUMP MAINTENANCE A WARNING Failure to observe precautions while installing inspecting and maintaining the pump can cause injury to personnel from accidental handling of liquids that may harm skin or clothing or fire hazard risks from flammable liquids or injury from high pressure fluid jets AN DANGER BEFORE working on equipment make sure all power to equipment is disconnected and locked out GENERAL COMMENTS NOTE Part number identifiers IDPs contained within parenthesis such as 10 refer to the circled numbers sh
7. EL IDENTIFICATION This instruction manual covers Imo C324AXFS 250 12004 pumps Model of pump is identified on pump nameplate Refer to Figure 1 and Table 1 for instructional keys when using this manual C 324A X F S 250 12004 i Special Bill Design E E Modification of Material Designator Pump Series Special L Power Rotor Features Diameter Mounting Casing Material F Foot Mounted S Steel Figure 1 Definitions of Model Designators E ORDERING INSTRUCTIONS When corresponding with Imo Pump regarding the C324AXFS 250 12004 pump refer to pump nameplate this instruction manual and assembly drawing as instructed below From pump nameplate record pump model number serial number and manufactured date Record instruction manual number revision and date 1 2 3 From instruction manual record figure numbers that apply to replacement part s 4 From assembly drawing or parts list see Figures 4A 4B and Table 2 provide IDP number s and names for replacement part s 5 Give above information to your Imo service representative Imo sales and service representatives are listed herein and in General Instruction Manual SRM00046 F OPERATION F 1 LIQUID CAUTION ATTENTION Never operate with thin liquids such as solvents or water Imo Pump has approved the use of this pump model on a specific process type fluid F 2 OPERATING LIMITS CAUTION ATTENTION Operating conditions s
8. RE ADJUST SHIM TO 100 sXe ACHIEVE AXIAL END PLAY SHOWN Enlarged View of Seal and Thrust Area Figure 4B Pump Assembly Drawing Accredited by the Council National Accreditation Program for Accreditation RvA RDS CERTIFICATION 2012 Colfax Fluid Handling all rights reserved ALLWEILER COT PURITECH HOUTTUIN COLFAX Fluid Handling ROSSCOR TUSHACO WARREN Colfax Fluid Handling 1710 Airport Road PO Box 5020 Monroe NC USA 28111 5020 Tel 1 704 289 6511 Email imo pump colfaxcorp com Web www imo pump com 15
9. TION CONTENTS SAFETY AND TABLE OF CONTENTS GENERAL INSTRUCTION INTRODUCTION DESCRIPTION OF EQUIPMENT PUMP MODEL IDENTIFICATION ORDERING INSTRUCTIONS OPERATION PARTS LIST PUMP MAINTENANCE PUMP DISASSEMBLY PUMP ASSEMBLY 8 11 INSTALLATION ALIGNMENT AND TROUBLESHOOTING 12 FIELD AND FACTORY SERVICE AND PARTS 12 ASSEMBLY DRAWING 13 14 O O1 O1 BR BR D p 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 Instructions found herein cover disassembly assembly and parts identification of C324AXFS 250 12004 pump NOTE Individual contracts may have specific provisions that vary from this manual Should any questions arise which may not be answered by these instructions refer to General Instructions Manual SRM00046 provided with your order For further detailed information and technical assistance please refer to Imo Pump Technical Customer Service Department at 704 289 6511 This manual cannot possibly cover every situation connected with installation operation inspection and maintenance of equipment supplied Every effort was made to prepare text of manual so that engineering and design data
10. ace all worn or damaged parts Imo Pump recommends automatic replacement of gaskets O rings bearings and mechanical seal when these parts are disturbed from their previously installed positions Coat all parts with light lubricating oil to assist in assembly Pump model covered in this instruction manual is provided with a Chesterton 180 cartridge type mechanical seal equipped with Kalrez elastomers Imo Pump recommends coating all pump components with a silicone based lubricant during pump assembly If new rotor housings 8 amp 10 are installed when performing Step 1 new anti rotations pins 11 must be installed Anti rotation pins are to be field fitted to each new housing to ensure housing maintains alignment with pump case and opposite housing If housing anti rotation pins are not snugly fitted to either housing opposite housing may rotate out of position during pump operation and damage rotors To fit new anti rotation pins file or grind one or both pins flat surfaces until pin fits snugly into housing slot Don not over grind flats Install jam nuts 25 and adjusting screws 19 to rotor housings 8 amp 10 Install nuts and screws loosely do not tighten at this time Align anti rotation pin slot in housing to pin hole on side of case flange Slide drive end rotor housing 8 into pump case 1 inboard end Repeat for non drive end rotor housing 10 assuring that rotor housing flanges are fully seated on case positioning lugs count
11. d distance W from case 1 end flange to housing 10 end face If housing 10 is below the case end face add distance W to the total distance Z 009 23 mm If housing 10 is above the case end face subtract the distance W from the total distance Z 009 23 mm Set adjusting screws to this distance from housing end face to adjusting screw end face Step 5 Installation of Rotors and Setting Power Rotor End Clearance Install woodruff key 26 in power rotor 13 key slot and install thrust collar 16 on key and power rotor shaft Seat squarely against shoulder Slide power rotor 13 into outboard end of pump Install outboard end cover 17 and gasket 4 to case using bolts 2 Torque bolts 2 to 155 ft lbs 210 Nm Mount a dial indicator to inboard end cover 17 and place indicator needle on power rotor coupling end face Push power rotor axially into pump until contact is made with outboard end cover Zero bezel on dial indicator then pull power rotor axially out of pump until thrust collar contacts busing insert Read and record total axial movement of power rotor Measure the thickness of laminated shim pack 86 Reduce shim pack thickness by peeling away laminations until thickness is 015 to 020 inches 38 to 51 mm less than total power rotor axial movement Remove outboard end cover 15 and power rotor from pump Remove thrust collar 16 and woodruff key 26 from power rotor Slide a
12. djusted shim pack 36 onto power rotor shaft then install woodruff key 26 and thrust collar 16 Make sure shims and thrust collar are seated squarely against power rotor shoulder Mesh threads of idler rotors onto power rotor and slide rotor set into pump from outboard end Re install outboard end cover 17 and gasket 4 using bolts 2 Torque bolts 2 to 200 10 ft lbs 270 14 Nm Verify 015 to 020 inches 38 to 51 mm power rotor total axial movement using the dial indicator Repeat above if correct axial movement is not achieved 11 K Step 6 Install Chesterton 180 cartridge mechanical seal 27 per instruction in Mechanical Seal Section of this manual See Section 1 1 2 INSTALLATION ALIGNMENT AND TROUBLESHOOTING For instructions regarding Installation Alignment and Trouble shooting see General Instruction Manual SRMO0046 FIELD AND FACTORY SERVICE AND PARTS Imo Pump maintains a staff of trained service personnel that can provide pump installation pump start up maintenance overhaul and troubleshooting supervision as well as installation and maintenance training Our factories provide maintenance as well as overhaul and test facilities in the event user prefers to return pumps for inspection or overhaul Pumps that have been factory overhauled are normally tested and warranted as new for a period of one year from date of shipment For either field service or factory overhaul assistance contact your local
13. er bore To assist in aligning housing bores install idler rotors 14 into idler bores Rotate rotor housings until idlers slide back and forth freely without binding When rotor housing bores are aligned install anti rotation pins 11 per above note Slide idler rotors back and forth again ensure no binding exists Install pipe plugs 7 Install shaft bushing 18 to inboard cover 17 aligning two capscrew holes with tapped holes in inboard end cover 17 Install capscrews 95 and torque to 27 2 ft lbs 37 3 Nm per the Nylok torque procedure see Sect 1 1 2 Install straight anti rotation pins 96 to bushing 18 Install bushing insert 57 to bushing 18 align notches over anti rotation pins Next set the rotor housing adjusting screws by the following directions Rotor housing adjusting screws 19 at inboard and outboard ends of the pump should be set following the directions outlined in Figures 2 and 3 To verify correct setting of adjusting screws 19 wipe bluing or place fuse wire on adjusting screw heads and install inboard end cover 17 with gasket 4 and bolts 2 Torque bolts to 200 10 ft lbs 210 14 Nm Remove inboard end cover and verify adjusting screw contact with inboard end cover CAUTION DO NOT exceed 003 08 mm squeeze on adjusting screws When correct adjustment is confirmed re install gasket 4 and inboard cover 17 using bolts 2 Torque bolts 2 to 200 10 ft lbs 270 14 Nm
14. for identification and their exact positions in the pump carefully noted so that new parts or the same parts are properly replaced without damage 1 1 SERVICING THE MECHANICAL SEAL The mechanical seal supplied is a Chesterton 180 Cartridge type PPO46KNK is Imo Pump s assigned part number If a sealing problem develops it is recommended the complete cartridge be returned to the nearest Chesterton repair facility for evaluation and possible rebuild or contact the Imo Pump Service Department for assistance 1 1 1 SEAL REMOVAL Step 1 Re install the centering clips finger tight ensuring the clip is toward the cartridge gland Step 2 Loosen the gland bolts 5 Step 3 Tighten centering clip cap screws 1 8 turn roughly 20 in lbs 2 26 Nm Step 4 Loosen all set screws in the locking ring Note If you are troubleshooting an improperly centered gland proceed to Seal Installation Section 1 1 2 Step 5 Otherwise disregard this note Step 5 Remove gland bolts 5 and washer 98 Step 6 Grasp cartridge gland and slide mechanical seal cartridge assembly from power rotor 13 shaft Remove gland gasket from gland face 1 1 2 SEAL INSTALLATION Note Mechanical seal elastomers are Kalrez Lubricate the mechanical seal elastomers prior to installation with a clean silicone based lubricant that is process compatible CAUTION When installing repositioning the seal make sure the centering clips and socket head cap screws are enga
15. ged If for any reason centering clips are loosened prior to installation tighten cap screw finger tight then turn cap screw 1 8 turn roughly 20 in lbs 2 26 Nm Step 1 Assure that all components are free of nicks and burrs Step 2 Install gland gasket to gland face Step 3 Make sure all screws are engaged in the lock ring but do not protrude into the ID bore Step 4 Install pipe plugs 100 in the quenching ports Step 5 Slide the completely assembled Chesterton 180 mechanical seal onto the shaft by pushing on the lock ring Step 6 Install washers 98 and gland bolts 5 Tighten the gland bolts 5 evenly to 30 2 ft lbs 41 3 Nm Step 7 Place power rotor 13 in the middle of its 015 to 020 inch total axial movement IMPORTANT All dog point set screws must be tightened FIRST Step 8 Evenly hand tighten dog point set screws Evenly hand tighten cup point set screws 7 Step 9 Retighten the six set screws dog point first to 55 5 in lbs 6 2 56 Nm Step10 Loosen cap screws holding centering clips in place Remove centering clips and store away for later use Step11 Make sure that the gland is properly centered over the sleeve by turning the shaft by hand to ensure the seal turns freely If metal to metal contact is heard inside the seal proceed to Seal Removal Section 1 1 1 Complete Steps 1 4 Step 12 If metal to metal contact still exists check the centering of the stuffing box
16. is transformed into most easily understood wording Imo Pump must assume personnel assigned to operate and maintain 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 Pump is to become part of processing machinery these instructions should be thoroughly reviewed to ensure proper fit of said equipment into overall plant operational procedures 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 B INTRODUCTION This instruction manual covers the C324AXFS 250 12004 pump C DESCRIPTION OF EQUIPMENT C324AXFS 250 12004 pump is a positive displacement rotary screw pump consisting of precision bored housings that encloses a driven screw power rotor and two intermeshing following screws idler rotors These screws when rotating form a succession of closures or cavities As they rotate fluid is moved axially from inlet port to outlet port in a continuous uniform flow with minimum fluid pulsation and pump noise Fluid flowing through pump provides lubrication to moving parts D PUMP MOD
17. own on the assembly drawing See Table 2 Figure 4A and Figure 4B TOOLS REQUIRED The procedures described in this manual require common mechanics hand tools a torque wrench dial indicator and suitable lifting device such as slings straps etc NYLOK FASTENER TORQUE PROCEDURE The required torque stated on the assembly drawing does not include the additional torque required to install fasteners containing Nylok inserts pellets strip patch ring collar The torque required for the first application is much higher than it is for subsequent applications To insure the required preload on a Nylok fastened joint is achieved for each application the following procedure is mandatory assembly practice Step 1 Using a suitable torque wrench install the fasteners in the mating piece until the Nylok insert is completely engaged Note the torque required Step 2 Add the torque measured in Step 1 to the torque value called for on the assembly drawing Step 3 Complete by tightening the fastener to the torque value determined in Step 2 above DISASSEMBLY PROCEDURES Note To service mechanical seal perform Section ONLY CAUTI ON Fluid leakage from disassembly of pump may make the floor slippery and can cause personal injury NOTE The C324AXFS 250 12004 pump incorporate highly finished precision parts that must be handled carefully to avoid damage to critical machined surfaces The parts removed should be tagged
18. uch as speed fluid viscosity temperature inlet pressure discharge pressure filtration duty cycle drive type mounting etc are interrelated Due to these variable conditions specific application limits may be different from that of operational limitations Equipment must not be operated without verifying system s operating requirements are within pump s capabilities 4 Under no circumstances are the following operating limits specified in Table 1 to be exceeded without specific approval from Imo Pump Table 1 Normal Pump Operating and Structural Limits MAXIMUM SPEED 86 RPM VISCOSITY Falling Ball Viscosity Norm 1100 Poise Viscosity Shear 10 sec 1 930 Poise Viscosity Shear 100 sec 1 530 Poise Falling Ball Viscosity Max 1800 Poise MINIMUM MAXIMUM LIQUID TEMPERATURE 0 to 200 F 18 to 93 C SPECIFIC GRAVITY 1 0 MAXIMUM INLET PRESSURE 25 psig MAXIMUM DISCHARGE PRESSURE 200 psig 84 4 Kg cm 2 Cont Duty DRIVE Direct only MOUNTING Foot Mounted G PARTS LIST Table 2 Pump Part List IDP QTY PART DESCRIPTION KIT a 1 MNMPLT MODULE NAMEPLATE 1 MNMPLT3 MODULE NAMEPLATE 0001 1 S901EW PUMP CASE 0002 24 PPOO7MCA 80 HEX BOLT 7 8 9 X 5 000 0004 2 S923GC GASKET X 0005 4 PPOO7HCA 36 HEX CAP SCR 1 2 13 X 2 250 0007 2 PP070AE 6 PLUG 3 8 SHP 0008 1 S904EAA ROTOR HOUSING
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