CAT Pumps 2560 Service Manual Download Page 10 | Manualshive

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CAT Pumps 2560 Service Manual Download Page 10

SERVICE MANUAL | 25 Frame Plunger Pumps

10

(763) 780-5440 | [email protected] | www.catpumps.com

1.19 Inspect the inside diameter of the low-

pressure seals for wear or damage.

Servicing the Seals

1.18 Use a flat tip screwdriver to pry the low-

pressure seal upward and remove.

MANIFOLD AND SEAL REMOVAL

NOTICE:

Be careful not to score the inside

of the manifold.

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Summary of Contents for 2560

Page 1: ...www catpumps com Product Quality Reliability and Support You Expect SERVICE MANUAL 25 FRAME PLUNGER PUMPS PUMP MODELS INCLUDED 2560 2565 2560BH 2565BH ...

Page 2: ...le of Contents IMPORTANT SAFETY INSTRUCTIONS It is the responsibility of the user to read and understand all instructions important safeguards and safety precautions before operating or servicing any pump Failure to do so may result in property damage personal injury or death GENERAL SAFETY INFORMATION AND SYMBOLS Payspecialattentiontothefollowingsignalwords safetyalert symbolsandstatements Safety...

Page 3: ...o Lock Out and Tag Out procedures for electrical equipment 2 Before commencing pump service turn power supply off turn water supply off squeeze trigger on gun to relieve system pressure 3 For mobile equipment be sure engines and hydraulics are turned off and secured to avoid accidental start 4 Do not operate with safety guards removed 5 Always use safety guards on all belt drives couplings and sha...

Page 4: ... and hold gun with both hands to control kick back A IMPROPER USE OF FITTINGS HAZARD Donotoperatethepumpwithimproperly connected sized wornorloosefittings pipesorhoses Operatingthepumpundertheseconditions couldresultinpersonalinjuryandpropertydamage 1 Ensure all fittings pipes and hoses are properly rated for the maximum pressure rating and flow of the pump 2 Check all fittings and pipes for crack...

Page 5: ... head of the pump 2 Ensure oil is filled to the center red dot on sight gauge for forward rotation 3 If reverse rotation is unavoidable ensure oil is filled to slightly above center red dot on sight gauge C BELT TENSION HAZARD Donotoperatepumpwithexcessivebelttension Excessivebelttensionmaydamagethepump sbearingsorreducehorsepower 1 Rotate pump crankshaft before starting to ensure shaft and bearin...

Page 6: ...le Most system failures are not due to the pump but fail because of other system components The Preventative Maintenance Check List on page 22 provides a summary of the various system maintenance concerns for all high pressure systems The seals on our pumps operating under normal conditions will perform for a minimum of 1500 hours with most lasting much longer The valves typically perform for 3000...

Page 7: ...AL BACKUP RING Tools Needed 1 10 mm Hex Socket 2 Small Flat Tip Screwdriver 3 2 x Large Flat Tip Screwdrivers 4 Pick 5 Reverse Pliers PN 30696 6 14mmCombinationWrench 7 Rubber Mallet 8 Oil Bubble Gauge Tool 9 Lubricating Oil 10 Liquid Thread Sealant Seal Valve Kit Pump Diagram VALVE KITS PN 31292 Qty 1 2 3 4 6 5 10 9 7 8 1 SEAL KIT 2560 2560BH PN 76853 Qty 1 2565 2565BH PN 76854 Qty 1 ...

Page 8: ...destopryout ofchamber 1 01 Usea10mmhexsockettoremovethesix 6 hexsocketheadscrews HSH fromthe dischargemanifold 1 02 Supportthemanifoldfromunderneath Usingarubbermallet tapthemanifoldto separatefromtheinletmanifoldandremove completely 1 03 Placethedischargemanifoldonaflatsurface withtheV packingspacerboresfacingup 1 07 Usingapick removebothsetsofO ringsand backupringsfromV packingspacers 1 08 Useas...

Page 9: ...ivertoprythefirst V packingupwardandremove NOTICE Becarefulnottoscoretheinsideof themanifold 1 16 Inspectthemanifoldboretoensuresealing surfaceissmoothandfreefromcorrosion 1 11 Inserttwo 2 flattipscrewdriversonopposite sidestoprythemanifoldawayfromthe crankcase 1 14 RepeatforthesecondV packing inspectboth forwearordamage 1 17 Fliptheinletmanifoldoversolow pressure sealsarefacingupwards 1 12 Remove...

Page 10: ...ort catpumps com www catpumps com 1 19 Inspecttheinsidediameterofthelow pressuresealsforwearordamage Servicing the Seals 1 18 Useaflattipscrewdrivertoprythelow pressuresealupwardandremove MANIFOLD AND SEAL REMOVAL NOTICE Becarefulnottoscoretheinside ofthemanifold ...

Page 11: ...mcrankcase housing 1 23 Usinga14mmcombinationwrench loosen theplungerretainer 1 21 Removelow pressuresealwasher 1 24 Beforecompletelyremovingtheplunger retainer stopandpushtheplungertowards thedriveendtobreakloosefromtheretainer Removetheplungerandretainer Servicing the Seals 1 28 Useapicktoremovekeyholewasherand barrierslingerlocatedbehindtheplunger Inspectfordamage 1 26 Usingapick removetheplung...

Page 12: ...e fromsealkitandapplyalubricanttooutside surface Servicing the Seals 1 32 Lookforsteppedsideofplunger Thisside goestowardsthepumpcrankcase 1 35 Threadplungerassemblyontoplungerrod byhand 1 33 InsertplungerretainerwithO ringand backupringintonon steppedsideofplunger 1 36 Usinga14mmcombinationwrench torque to108in lbs 7 5ft lbsor10Nm 1 34 PlaceadropofLoctite 242 onthethreaded endoftheplungerrod 1 37...

Page 13: ...pringsgoontheinsideofthe grooves andO ringsontheoutside 1 46 ApplyalubricanttotheV packingspacer O rings 1 43 InstallthefirstV packingwiththegroove sidefacingup 1 39 Applyalubricanttotheoutsidesurfaceofthe low pressureseals 1 40 Onesideofthelow pressuresealhasa groove Installgroovesidefacingdownand pressintoplace Loctite and 242 are registered trademarks of the Henkel Corporation SEAL INSTALLATION...

Page 14: ...heinletmanifoldandV packingspacersand pressintoplace 1 52 ReplaceinletmanifoldO rings 1 54 Installsix 6 HSHscrewsbyhand Usinga 10MMhexsocket tightenscrewsusing appropriatecross patternforevenalignment Torqueto355in lbs 30ft lbs or40Nm 1 48 Rotatecrankshaftsooutsidetwoplungersare evenatfurthestdistancefromcrankcase 1 49 Installinletmanifoldbyhand ensuringeven alignment Pressintoplace Servicing the ...

Page 15: ...spectvalveplugO ringandbackupringfor cuts nicksordamage 2 07 ThevalveseatO ringmayremainin themanifold Useapickorsmallflattip screwdrivertoremoveO ring 2 05 Usingapick removeO ringandbackupring fromvalveplug NOTICE Valveassemblycanbedisassembled forinspectionandservicing thenreassembled Ifreplacingthecompletevalvekitassembly skiptoValveInstallation2 37 2 06 Useareverseplierstograspthecenterofthe v...

Page 16: ...lveseatO ringand backupringforcuts nicksordamage 2 16 Usingapick removeO ringandbackupring fromdischargevalveseat 2 13 Removedischargevalveseatbyhand 2 14 Inspecttaperedsurfaceofdischargevalve seatforwear pittingordamage NOTICE Pittingonthevalveorvalveseatisan indicationofcavitation 2 17 Insertaflattipscrewdriverthroughinlet springretainerjustaboveinletvalve Twist tocreateasmallgapbetweeninletspri...

Page 17: ...ainerbyhand 2 19 Inspectinletvalvespringretainerforcracks excessivewearordamage 2 20 Inspectspringforpropertensionorany damage Servicing the Valves 2 21 Inspecttaperedsurfaceofinletvalveforwear pittingordamage 2 22 Inspecttaperedsurfaceofinletvalveseatfor wear pittingordamage 2 23 InspectinletvalveseatO ringforcuts nicksor damageandremove ...

Page 18: ...getheruntilitsnapsinto place 2 30 Replacedischargevalvebackupring then O ringontodischargevalveseat 2 32 Placedischargevalveontodischargevalve seatwithtaperedsurfacefacingdown 2 28 Placeinletvalvespringretainerontoinlet valveseat VALVE REASSEMBLY 2 27 Placespringontosteppedsideofinletvalve 2 25 Holdinletvalveseatwithtaperedsurface facingup 2 24 ReplaceinletvalveO ring 2 26 Placeinletvalveontoinlet...

Page 19: ... www catpumps com Servicing the Valves 2 34 Placedischargevalvespringretaineronto dischargevalveseat 2 35 Pushassemblytogetheruntilitsnapsinto place 2 33 Placespringontosteppedsideofdischarge valve 2 36 Applyalubricanttotheoutsidesurfaceofthe inletvalveseatO ring VALVE REASSEMBLY ...

Page 20: ...stallvalveplugbackupring thenO ring andapplyalubricanttooutsidesurface NOTICE ValveplugO ringfacesdownwhen installedinthemanifold 2 41 Installfour 4 HSHscrewsbyhand 2 42 Usinga10mmhexsocket tightenHSH screwsusingappropriatecross pattern forevenalignment Torqueto355in lbs 30ft lbs or40Nm 2 37 Applyalubricanttotheoutsidesurfaceofthe dischargevalveseatO ring VALVE INSTALLATION TORQUESEQUENCE Servicin...

Page 21: ...w crankcase oil level Crankcase oil that appears cloudy or milky in the Oil Bubble Gauge indicates the presence of water in the crankcase A water oil mix does not provide enough lubrication to the components in the drive end and will cause damage This damage can occur on the plunger rods or the crankshaft and connecting rods Also without a layer of oil on the drive end components oxidation and rus...

Page 22: ... seals and valves immediately Service as required to restore system performance Depending upon operating conditions maintenance intervals for seals kits range between 1 500 and 8 000 hours Pump valves typically require changing every other seal change If system performance degrades or changes check valves immediately Depending upon operating conditions maintenance intervals for valve kits range be...

Page 23: ...3 0 ConnectingRodScrews M8 M13Hex 130 10 8 15 0 BubbleOilGauge M28 OilGaugeTool 44050 45 3 8 5 0 TECHNICAL BULLETIN REFERENCE CHART NO SUBJECT MODELS 002 Inlet Pressure vs Liquid Temperature All Models 024 Lubrication of Low Pressure Seals All Models 034 Servicing Crankcase Section Ball Bearing Models 3FR 4FR 5FR 10FR 25FR 3CP 5CP 3PFR 5PFR 25PFR 28PFR 036 Identifying Your Pump All Models 043 Serv...

Page 24: ... kit Increase frequency of service Knocking noise Inlet supply Inadequate inlet liquid supply Check liquid supply Increase line size or pressurize Bearing Broken or worn bearing Replace bearing Oil leak Crankcase oil seal Worn crankcase oil seal Replace crankcase oil seal Crankshaft oil seal and O ring Worn crankshaft oil seal or O ring on bearing cover Remove bearing cover and replace O ring and ...

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