Screw pumps ACE3 - hydraulics-care.com

1 This instruction is valid for all ACE pump models shown on page 2 ContentsPageList of components2 Exploded view3 Ordering code/Service intervals4 Sectional view5 Useful tools/Shaft seal-assembly drawing6 Dismantling/reassembly7 Pressure relief valve/SealGuard11 Screw pumpsA Member of theCOLFAX PUMP GROUPACE3 ACE 0620 GBApril 2002 Maintenance and ServiceInstruction2 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: commencing any work, read this instruction carefully! Failure to comply withthese instructions may cause damage and personal injury!!Valid for all pumps in sizes: ACE 025/032/038 Rotor diameter and Generation: L3/K3/N3 With version codes:NVBPAlso valid for pump options: A101 TThe version code is composed of the letters in the 4 of pump designations std: ACE 025L3 NTBP;option: ACE 038N3 NVBP A101 List of componentsFor more information about the pumps identification code, technical data and performance we refer to theACE Product description.

2 For more information about the pumps installation, Start-up and trouble shootingwe refer to the IMO Installation and Start-up instruction for Low Pressure included in spare parts sets:PosDenominationQ-ty G011 G012 G050 G053 G054 G057 G070 G082 NotesExplanations:no1010 Power rotor1x(x)1020 Power rotor1xxG011: Rotor set113 Key1xxx122 Ball bearing1xxxG012: Rotor set125 Secondary seal1xxxx1201 Idler rotor2x(x)G050: Shaft seal202 Idler rotor2xx351 Balancing bush1xxxG053: Minor kit401 Pump body1416 Suction flange1G054: Major kit417 Screw8418 Gasket to1xxxG057: Joint kitsuction flange423 Gasket to1xxxG070: Valve elementdischarge flange427 Discharge flange 1G082: Seal Guard kit440 Return valve1451 Screw4453 Screw4462 Plug1462A Sealing washer1xxx463 Plug1463A Sealing washer1xxx501 Front cover1506 Gasket1xxx509 Shaft seal1xxx537 Deaeration plug2537A Washer2xxx551 Rear cover1556 Gasket1xxx557 Plug1557A Washer1xxx605O-ring1xxxx608 Valve spindle1xx608A Tension pin1xx6120 Set screw1xx613 Pin1xx614 Valve piston1xx615 Valve spring1xx7310 Compl.

3 Seal1x2,3 Guard732 Gas generator1x2 Notes:1) Version NTBPand NQBP2) Version NQBP only3) IncludingGasgenerator3 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: viewFig. 1 All work carried out on the pump has to beperformed in such a manner that risks forpersonal injury are observed!When handling liquids that may harm skinuse gloves and/or protective clothing.!!!!When handling liquids which may involvefire hazards appropriate precautions toavoid danger are to be case of failure for a system with elevat-ing pressure fluid jets may cause injuryand/or leakage may make the floor slipperyand cause personal and disconnecting of electriccables must be done only by personnelauthorized to do such work.

4 !Before any maintenance work, ensure thatthe driver is deenergized and the pumphydraulically isolated.!451 501 125463463A537A537557A557537A537506440401 556551453(608A)(614)(615)(613)(6120)(608 )(605)462A462122351113102020250941841641 7423427xVxxxTxx 732 7310xQxxxTxx, xQxxxQxxxQxx4 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: :For maintenance the following sparepart sets are recommended:Set:To be used:G057 Joint kitFor dismantling the kitFor kitFor repair after damage or example:For IMO-pump ACE 032N3 NVBP,serial number 456789:Shaft seal pos G050 p/n 189964 Valve element pos G070 p/n 189873 Item Spare Parts sets025032038G012 Rotor set CW-rotation (std)Low lead-L3190486190485 Low lead-K3 190482 Normal lead-N3190487190484190483G011 Rotor set CCW-rotationNormal lead-N3190492190491190488G050 Shaft seal-xVxx189964189964189964 Shaft seal-xTxx190495190495190497 Shaft seal-xQxx190495190495190497G053 Minor kit-xVxx190501190710190500 Minor kit-xTxx190503190712190499 Minor kit-xQxx190503190712190499G054 Major kit=G012(G011)

5 +G053+G070G057 Joint kit-xVxx190525190714190522 Joint kit-xTxx190524190713190523 Joint kit-xQxx190524190713190523G070 Valve element189873189873189873G082 Sealguard-kit xQxx190526190526190527125 Secondary seal xTxx, xQxx 190469190469190468732 Gas generator xQxx190530190530190530 Part numbers for pump sizeOrdering codeInspection of shaft sealExcessively leaking shaft seals (more than 10 dropsper hour) should be changed without delay, as theleakage normally will grow worse and cause addi-tional installations where unplanned shut downs mustbe avoided, it is advisable to dismantle the pump fora thorough inspection and thereby change out shaftseal and ball bearing, every three years as a is recommended always to have the spares in-cluded in minor spare part kit of rotorsA quick inspection of the idler rotors can be madesimply by removing the rear cover.

6 Note that thedriver must be deenergized and the pump hydrauli-cally isolated before the rear cover is a more thorough investigation is needed, proceedas under Dismantling/Reassembly .Service intervalsThe intervals for inspection and replacement of wearparts vary greatly with the properties of the pumpedliquid and can only be determined by liquid which contains abrasive materials,or liquid that is corrosive, will significantly reduceservice life and call for shorter service will normally show as unnormal: Vibration Noise Loss of capacity Reduction in flow/pressure Leakage!If the pumps operating temperature exceeds60 C let the pump cool off before any service,maintenance or dismantling work is com-menced to avoid burn 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: viewFig.

7 2732537A5377310(xQxx)125 (xTxx, xQxx)C - CE - E463463A6 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: mmPlasticmalletSliding calliperOil canScrewdriverMounting tool kitShaft seal - assembly drawingFig. 4 Useful toolsFig. 3 Allen key5 mm and3 mmShaft seal G050 (509)Version code xTxxS1 SeatS2 O-ringS3 RetainerS4 Seal ringS5 CarrierS6 O-ringS7 Spring unitS8 Stop Screw + Secondary seal 125 Version code xQxxxTxx + CompleteSealGuard 7310 Version code xVxxS1 SeatS2 O-ringS4 Seal ringS6 O-ringS7 Spring unitS8 Stop screwStationary memberRotating memberFrontcoverretainingtabSeat slotS8 Seat retaining lugS4S6S1S2S7S8S5S6S1S2S3S7S4S4, S7 is one unitStationary memberRotating memberTool 2 Tool 1D= 25,5 mmFor dimension and material,please contact IMO AB lugSeat slot7 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: Remove the shaftcoupling.

8 Remove the key 9 Fig. 10 Dismantling Turn the electricity OFF. Close the valves. Remove the pumpfrom the appropriate vessels to collect oil spill-age when removing and opening the pump. Note the position of the shaft coupling. Release the stop 8 Fig. 7 ONOFFFig. 5D. Remove the front cover 501 and powerrotor 64511131020 Remove thescrews 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: 13 Fig. 14 Fig. 11 Fig. 12 Fig. 15 Separate the frontcover 501 and thepower rotor xTxx and xQxx Place the front cover 501 on a pair ofwooden pieces. Press out the shaft seal, stationary memberwith a suitable tool. Loosen the shaft seal rotating member. Remove and inspect theidler rotors Remove the secondary seal 125 with asuitable Screw 16H.

9 XTxx and xQxx501501125 Insert two suitablescrew drivers in thecarrier S5 slots andgently push therotating memberS4, S7 off the rotorshaft. Loosen the twostop screws S8(3 mm Allen key)on the carrier S5and pull it xVxxRotatingMemberS5S89 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: 19 Fig. 20 Fig. 17 Fig. 18 Fig. 21C. 22 Lubricatethe idler rotors 202and fit them into the pump body Un-pack a new shaft seal 509. Check that the O-ring S6 is in xTxx, xQxx Polish the power rotor shaft1020 with a fine emery and oil. Fit the rotating member abovethe ball bearing 122 and lock itwith its stop screws xTxx and xQxx Polish the power rotor shaft1020 with a fine emery and oil. Fit the carrier S5 tight against theball bearing.

10 Make sure the carrieris not fitted upside down. Firmly tight the two stop screws S8. Lubricate the O-ring S6 in the rotat-ing member with oil. Press the rotating member S4, S7gently on to the rotor shaft and makesure the driving lugs enters the slotsin the carrier Insert the Power rotor 1020 into the pumpbody xTxx and xQxx50112512 Press the Secondaryseal 125 in place witha suitable tool in twosteps as shown. Use acolumn drill machineas a press !Tool nr 2 hasone end for sizes025, 032 and oneend for size 038202401 Oil canEmeryS6S6S4S8S8S5S4,S7 Tool 1 Tool 2S5 Rotatingmember10 ACE 0620 GBApril 2002 IMO AB, Telephone: + 46 8 50 622 800, Telefax: + 46 8 645 15 09E-mail: Web: 27 Fig. 26 Fig. 23 Fig. 25 Fig. 24 Fig. 28G. xVxx Fit the spring unit S7 in the position for the Seatslots and lugs.