起重机吊车维修方案（maintenance plan for crane）

起重机吊车维修方案（MAINTENANCEPLANFORCRANE）SERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD1CRANEHOOK1DISASSEMBLE,INSPECTHOOKS,SHAFTS,BEAMS,PULLEYS,BEARINGS,ANDCLEANANDLUBRICATE2INSPECTTHEWORNCONDITIONOFDANGEROUSSECTION3THETESTOFTHEHOOK4HOOKPLATEREPAIR1HOOK,CROSSBEAM,APULLEYSHAFT,NOCRACK,THETHREADEDPARTSHOULDNOTLOOSE,BEARINGINTACT,ROTATINGPULLEY,AKNIFEORCRACKTHREADGROOVESHOULDBEREPLACED2REPLACEMENTOFDANGEROUSSECTIONWEAROVER10OFORIGINALHEIGHTSHALLBEREPLACED3AFTERTHEOVERHAUL,THEHOOKSHALLBETESTEDANDCHECKEDTHESUSPENSIONSHALLBESUSPENDEDFOR10MINUTESAT125TIMESTHERATEDLOAD,ANDTHEELASTICOPENINGOFTHEHOOKSHALLNOTEXCEED025OFTHESIZEOFTHEHOOKNOPERMANENTDEFORMATIONORCRACKSHALLBECAUSEDAFTERUNLOADING4THEGAPBETWEENTHEPLATEANDTHEPLATESHALLNOTBEGREATERTHAN03MMAFTERTHERIVETINGOFTHEPLATEHOOK2STEELSILKROPE1BROKENWIREINSPECTION2RADIALWEAR3DEFORMATIONINSPECTION4WIREROPELUBRICATION1THENUMBEROFBROKENWIRESINTHE1TWISTINTERVALSEXCEEDS10OFTHETOTALNUMBEROFSTEELWIRES,ANDSHOULDBESCRAPPEDASSTANDARD2WHENTHERADIALWEAROFSTEELWIREEXCEEDS40OFTHEORIGINALDIAMETER,THEWHOLESTEELWIREROPESHOULDBESCRAPPED3THEDIAMETEROFTHEWIREROPEISREDUCEDTO70OFTHEROPEDIAMETERTHEROPECOREISEXPOSEDANDTHEBROKENSTOCKSHOULDBESCRAPPEDTOREPLACETHENEWSTEELWIREROPE4BEFORELUBRICATION,BRUSHWITHWIREBRUSH,KEROSENEANDSOONUSEWIREROPEHEMPGREASEQ/SY115265ORSYNTHETICGRAPHITECALCIUMBASELUBRICATIONFINGERSYA140565,DIPCOATINGSATURATIONISAPPROPRIATE3ROUNDGROUP1ANDMAINTENANCEOFPULLEYBLOCK,CHECKCRACK2MAINTENANCEOFPULLEYGROOVE3INSPECTIONOFAXLEHOLE4ASSEMBLY1PULLEYSHAFTSHALLNOTHAVECRACKS,SHAFTNECKSHALLNOTWEAR,THEORIGINALDIAMETEROF30,THECONEISNOTGREATERTHAN5,MORETHANTHISVALUESHOULDBEREPLACED2CHECKTHEGROOVESHAPEWITHATEMPLATE,ANDTHERADIALWEARSHALLNOTEXCEED30OFTHEWALLTHICKNESS,OTHERWISEITSHOULDBESCRAPPEDSHALLNOTEXCEEDTHESTANDARDSCANREPAIR,OVERHAULAFTERUSINGMODELCHECKING,THEBOTTOMANDLATERALCLEARANCESHOULDBENOMORETHAN05MM,THEDEVIATIONOFTHECENTERLINEANDTHEPULLEYWHEELGROOVECENTERLINESHOULDBELESSTHAN02MM,THEROPEGROOVECENTERDEVIATIONONTHECONTOURSURFACESHOULDBELESSTHAN1MM3AFTEROVERHAUL,THESHAFTBORESHALLHAVENOMORETHAN025CM2DEFECTS,ANDTHEDEPTHSHALLNOTEXCEED4MM4AFTERASSEMBLY,SHOULDBEABLETOUSEHANDFLEXIBLEROTATION,LATERALSWINGSHALLNOTEXCEEDD/1000NOMINALDIAMETEROFDPULLEYVOLUME4CANISTER1DRUMROPETROUGH2REELSURFACE3REELSHAFT4ASSEMBLYANDINSTALLATION1THEGROOVEWEARSHOULDEXCEEDTHE2MM,ANDTHEGROOVESHALLBEUPTOTHEDRAWINGREQUIREMENTAFTERTHEOVERHAUL,BUTTHEWALLTHICKNESSOFTHEDRUMSHALLNOTBELESSTHAN81OFTHEORIGINALTHICKNESS2THERESHOULDBENOCRACKSONTHESURFACEOFTHEDRUM,THERESHOULDBENOOBVIOUSROUNDNESS,ANDTHESCREWSSHOULDNOTBELOOSENED3THERESHALLBENOCRACKSONTHESHAFTOFTHEDRUMAFTERTHEBIGREPAIR,THEDRAWINGSHALLBEREQUIREDWHENTHEWEAREXCEEDS5OFTHENOMINALDIAMETER,ANEWPARTSHALLBEREPLACED4THECENTEROFTHEDRUMSHAFTANDTHESUPPORTSURFACEOFTHETROLLEYSHOULDBEPARALLEL,ANDTHEDEVIATIONSHOULDNOTBELARGERTHAN1MM/MAFTERTHEINSTALLATIONOFTHEREEL,THECENTERLINEDEVIATIONOFTHETWOSHAFTSSHOULDBENOMORETHAN015MMSERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD5CARWHEEL1WHEELTREADWEAR2DIAMETERDEVIATIONOFTWOMATCHEDWHEELS3FLANGEWEARANDTEAR,DEFORMATION4WHEELCRACKS5TREADELLIPTICITY6WHEELASSEMBLY1WHENTHEWHEELTREADWEAREXCEEDS15OFTHEORIGINALTHICKNESS,NEWPARTSSHOULDBEREPLACED,NOTEXCEEDINGTHISVALUE,WHICHCANBEREPAIREDAGAINANDREPAIREDBYHEATTREATMENTTHEDIAMETEROFTHEWHEELSHOULDBEWITHINTHETOLERANCERANGETHESURFACEQUENCHINGHARDNESSISHB300500,ANDTHETHICKNESSOFTHEQUENCHINGLAYERWITHTHEDIAMETEROFTHEWHEELGREATERTHAN400MMSHALLBEGREATERTHAN20MMWHENTHETHICKNESSISLESSTHAN400MM,THETHICKNESSOFTHEQUENCHINGLAYERSHALLNOTBELESSTHAN15MM2THEDRIVINGWHEELDIAMETERDEVIATIONSHOULDNOTEXCEED01OFTHENOMINALDIAMETEROFTHEDRIVENWHEELSHOULDNOTEXCEED02,THEELECTRICHOISTWHEELDIAMETERDEVIATIONSHOULDNOTEXCEEDTHENOMINALDIAMETEROF1,FROMTHEWHEELSOFTHECARSHOULDNOTEXCEED02ELECTRICHOISTWHEELDIAMETERDEVIATIONSHOULDNOTEXCEEDTHENOMINALDIAMETEROF13THEAMOUNTOFFLANGEWEARIS50OFTHEORIGINALTHICKNESSORTHEFRACTUREAREAEXCEEDS30MM2THEFLANGETHICKNESSSHOULDBESCRAPPEDANDTHEBENDINGDEFORMATIONSHOULDREACH20OFTHEORIGINALTHICKNESSITSHALLBESCRAPPED4THECRACKSFOUNDONTHEWHEELSSHALLBESCRAPPED5THE1MMOFTHEWHEELTREADSHOULDBESCRAPPED6THEASSEMBLEDWHEELASSEMBLYSHOULDBEFLEXIBLEANDFLEXIBLE,ANDSEVERALWHEELSMOUNTEDONTHESAMEBALANCEFRAMEAREINTHESAMEVERTICALPLANE,ALLOWINGTHEDEVIATIONTOBE1MM6CARROUNDAXISANDAXISMAINTENANCEOF1AXLENECK2CRACKREPAIR3INSPECTIONANDREPAIROFROLLINGBEARINGS4CHECKTHECLEARANCEOFTHEPULLEYBEARINGS5CHECKTHECLEARANCEOFTHEAXLECLEARANCE1THEELLIPTICITYANDTAPEROFTHEAXLENECKAFTEROVERHAULSHOULDNOTBEGREATERTHAN003MM2CHECKTHESHAFTWITHMAGNETICORULTRASONICFLAWDETECTOR,NOCRACKSONTHESHAFT,ANDTHEDEPTHSHALLNOTEXCEED003MM3THEAXIALGAPBETWEENTHEINNERANDOUTERRINGSOFTAPEREDROLLERBEARINGSISALLOWEDWITHINTHERANGEOF003018MMTHEADJUSTINGGAPOFBEARINGGLANDSHOULDBEWITHINTHERANGEOF0515MM4ALLOWABLECLEARANCEBETWEENAXLEANDBUSHMM,SUCHASTABLEAJOURNALDRIVESHAFTCLEARANCE20400612409008165THERADIALALLOWABLECLEARANCEMMBETWEENTHESHAFTANDTHEKEY,SUCHASTABLEBRADIAL2040RADIALCLEARANCE010341900104KEYWAYANDKEYLATERALALLOWCLEARANCEMM,ASSHOWNINTABLECRADIAL2040RADIALCLEARANCE010241800203800305SERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD7TEETHROUNDANDREDUCESPEED1DISASSEMBLETHEREDUCERANDCHECKTHECONDITIONOFGEARGRINDING2INSPECTIONOFTOOTHSURFACE3OVERHAULOFSHAFT4MAINTENANCEOFBEARINGS5ASSEMBLYINSPECTIONCENTERDISTANCEUSEMICROMETERORSPECIALVERNIERCALIPERTOMEASURETHECENTERDISTANCEOFGEARTHETOOTHSIDECLEARANCEOFTOOTH,CANLEADWIREMEASUREMENTMAINTENANCEOFMESHINGAREA6RUNNINGTEST1HOISTINGMECHANISMSPEEDREDUCERSHAFTOFTHEFIRSTGEARTOOTHTHICKNESSWEARAMOUNTSHALLNOTEXCEED10,THERESTSHOULDBELESSTHAN20THELARGECARRUNNINGSPEEDREDUCERFIRSTSHAFTGEARWEARSHOULDNOTEXCEED15,THERESTSHOULDBELESSTHAN252THEPITTINGOFTHETOOTHSURFACEISDAMAGEDBY30OFTHEMESHINGSURFACE,ANDWHENTHEDEPTHREACHES10OFTHEORIGINALTOOTHTHICKNESS,THEGEARSHALLBESCRAPPEDTHEGEARTOOTHSHALLNOTBECRACKEDORTHEGEARCANNOTBEBROKENOTHERWISEREPLACE3THERESHALLBENOCRACKSONTHESHAFTTHETOTALLENGTHOFTHEBENDINGOFTHESHAFTSHOULDNOTEXCEED003MM/M,ANDTHEEXCESSSHALLBESTRAIGHTENED4ALLOWABLEDEVIATIONOFRADIALCLEARANCEOFBEARINGSAFTEROVERHAULUNITMMALLOWABLECLEARANCEBETWEENSHAFTDIAMETERANDINNERDIAMETER1730002355000355900045WHENASSEMBLING,CHECKTHEFOLLOWING3ITEMSDEVIATIONOFCENTERDISTANCE,BACKLASHANDMESHINGAREAMMALLOWABLEDEVIATIONOFCENTERDISTANCECENTERDISTANCE500ALLOWABLEDEVIATIONIS007009012015THEALLOWABLEDEVIATIONOFTHEBACKLASHBETWEENTHETEETHANDTHECLEARANCEBETWEENTHETOPTEETHIS025M,ANDTHEMODULUSOFMISCENTERDISTANCE80120,120200,200300,320500,500800BACKLASH013026,017034,02104,026053,034067CENTERDISTANCE80120,120200,200300,320500,500800USINGTHEMETHODOFPAINTEDREDCHECKTHEMESHINGAREAISNOTLESSTHAN45OFTHETOOTHHEIGHTAND60OFTHETOOTHWIDTH6SPEEDREDUCERJOINTSECTIONATANYSITEDOESNOTALLOWANYHIT,ANDSERIOUSSCRATCHES,EDGEHIGHS,FLANGING,ANDSUBDIVISIONSURFACEFITTINGAFTERTHEGAPSHOULDNOTEXCEED003MM,ANDENSURENOLEAKAGETHEPARALLELISMIN1MABOVESHALLNOTBEGREATERTHAN05MMINCASEOFNOLOADOPERATIONFORTHE1000R/MINDRAG,THEREVERSEISNOTLESSTHAN10MINUTES,WHENSTARTINGTHEMOTORSHOULDNOTHAVEVIBRATION,IMPACTANDSEVEREABNORMALSOUNDORINTERMITTENTNOTMORETHAN70DEGCTEMPERATURERISEINTHEBOX,ANDTHEABSOLUTETEMPERATUREISNOTHIGHERTHAN80DEGCBEARINGTEMPERATURERISESHOULDNOTEXCEED40DEGREES,THEABSOLUTEVALUESHOULDNOTEXCEED80DEGCSERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD8AXIS1TOOTHSURFACEINSPECTIONOFGEARCOUPLING2THETESTOFTHESWINGOFTHEINNERANDOUTERGEARRINGENDFACETOTHECENTERLINE3THECENTERLINEOFTHEAXISWITHOUTTILT,RADIALDISPLACEMENTCOUPLINGINSTALLATIONINSPECTION4WHENTHEREISNORADIALDISPLACEMENT,THEOBLIQUEANGLEOFTHEOUTERRINGISCAUSEDBYTHENONCONCENTRICOFTHETWOCOUPLINGS5THERADIALDISPLACEMENT1OFTHECOUPLINGINTHEFORMOFTEETHCONNECTEDBYTHEINTERMEDIATESHAFTCANBEREFERREDTO2THEINNERANDOUTERENDOFTHEOUTERRINGALLOWSTHEPENDULUMMOMENTUMMMDIAMETERDALLOWMOMENTUM40100,100200,200400,400800,80120000001002000801203THEALLOWABLERADIALDISPLACEMENTOFTHETWOSHAFTS,ACCORDINGTOTHEMODULUS,THEVALUEIS0432MMMODULUSM25,25333444NUMBEROFTEETHZ3038404856485662RADIALDISPLACEMENTMM04,065,081,125,135,16,184THEBEVELANGLEOFTHEINNERRINGAXISISALLOWEDWITHINTHERANGEOF0305THEMAXIMUMYMAX000873AOFRADIALDISPLACEMENT,ANDTHELENGTHOFTHEMIDDLESHAFTFROMTHECENTEROFTHEOUTERTEETHOFATWO9MOVE1MAINTENANCEOFBRAKEFRICTIONPLATE2OVERHAULOFBRAKEWHEELBRAKEWHEELSURFACETHECONTACTAREABETWEENTHEBRAKEWHEELANDTHEFRICTIONPLATEANDTHEDEVIATIONOFTHECENTERLINEOFTHEBRAKEWHEELINSPECTIONOFWHEELRIMSWINGAFTERINSTALLATIONOFBRAKEWHEELINSTALLATIONOFBRAKEWHEELANDCOUPLING3OVERHAULOFSMALLSHAFT,MANDRELANDAXLEHOLE4BRAKEARMANDWORKSPRING5BRAKELEVERSYSTEM1THEWEARAMOUNTSHALLNOTEXCEED50OFTHEORIGINALTHICKNESS,THERIVETSHOULDSINKMORETHAN2MM2INCLUDINGTHEWORKINGSURFACEOFTHEBRAKEWHEEL,THEAREAOFTHECONTACTAREABETWEENTHEBRAKEWHEELANDTHEFRICTIONPLATETHEROUGHNESSOFWORKINGSURFACEOFBRAKEWHEELISNOTLESSTHANRA16MUM,HRCISNOTLESSTHAN50,DEPTH2MMISNOTLESSTHANHRC40WORKFACEDENTORSINGLESIDERADIALWEARAMOUNTIS15MM,SHOULDBEREHEATINGSYSTEMANDHEATTREATMENTAFTERPROCESSINGTHEBRAKEWHEELTHICKNESSHOISTINGMECHANISMSHOULDNOTBELESSTHAN70OFTHEORIGINALTHICKNESS,50WHEELBRAKEOVERHAULOPERATIONMECHANISMSHOULDNOTBELESSTHANTHEORIGINALTHICKNESS,RADIALRUNOUTDLESSTHAN200MMSHOULDBENOMORETHAN005M,D200MMRADIALRUNOUTSHOULDBELESSTHAN01MTHECONTACTAREAOFFRICTIONPLATEISNOTLESSTHAN80OFTHETOTALAREATHECENTERLINEDEVIATIONOFTHETWOVALUEISWHENTHEDISLESSTHANOREQUALTO200MM,SHOULDNOTEXCEED2MM,D300MMSHOULDNOTEXCEED3MMTHEALLOWABLESWINGMMOFTHEBRAKEWHEELAFTERINSTALLATIONTHEBRAKEWHEELDIAMETERLESSTHAN200200300300600DALLOWEDTOSWINGRADIALLY010,012,018FACES015,020,025WHENTHEBRAKEWHEELISCONNECTEDWITHTHECOUPLING,THEBRAKEWHEELSHALLBEINSTALLEDONTHESIDENEARTHEMOTORORREDUCER3THESMALLSHAFTANDSPINDLESHOULDBEREPAIREDWHENTHEAMOUNTOFABRASIONREACHES20OFTHENOMINALDIAMETER,ANDTHEVALUESHALLBEREPLACED4THEBRAKEARMANDWORKINGSPRINGCANNOTBECRACKEDORBROKEN5THEEMPTYSTROKESHALLNOTEXCEED10OFTHEARMATURESTROKE,ANDTHETESTSHALLBESENSITIVEANDRELIABLESERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD10RISEMACHINESTRUCTUREANDSMALLVEHICLEMINISTRYTHESHAFTOFALIFTINGMECHANISM12CHECKTHEDISPLACEMENTOFTHEMOTORANDREDUCER3THEAXISDEVIATIONOFTHEDRUMANDREDUCER4CARTRACKDEVIATION5DEVIATIONOFELEVATIONOFTROLLEYTRACK6DEVIATIONOFTRACKCENTERLINEFROMDESIGNCENTERLINEOFTRACKSUPPORTEDBEAM7THEDEVIATIONOFTHETROLLEYTRACKJOINT8THEHORIZONTALDEVIATIONOFTHEENDOFTHETROLLEYWHEEL9DEVIATIONOFWHEELENDFACE10DEVIATIONOFWHEELTREAD11CARTRACKDEVIATION1INSPECTIONOFTHELIFTINGMECHANISMOFTHESPINDLEANDDRIVESHAFT,NOCRACKSALLOWED2THEINSTALLATIONREQUIREMENTSOFTHECOUPLINGSSHALLBEMET3THEALLOWABLEDEVIATIONATTHEBEARINGSEATSHALLNOTBEGREATERTHAN3MM/M4DUETOSMALLDEVIATIONSOFWHEELTROLLEYGAUGEMEASUREMENTWHENTHEGAUGEISLESSTHANOREQUALTO25M,ALLOWINGTHEDEVIATIONOF2MM,ANDTHEDRIVENPULLEYRELATIVEERRORISNOTMORETHAN2MM,WHENTHE25MGAUGE,ALLOWINGTHEDEVIATIONISNOMORETHAN3MM,ANDTHEDRIVINGWHEELRELATIVEERRORISNOTMORETHAN3MM5WHENTHETROLLEYGAUGEISLESSTHANOREQUALTO25MM,THEALLOWABLEDEVIATIONFOR3MMGAUGE25M,ALLOWABLEDEVIATIONIS5MM6THEALLOWABLEDEVIATIONOFBOXGIRDERISNOTMORETHAN1/2DELTAANDDELTAWEBTHICKNESSMMTHEALLOWABLEDEVIATIONOFSINGLEWEBBEAMISNOTLESSTHAN10MM,ANDTHEBOXDOUBLEGIRDERISALLOWEDTOBEDEVIATIONFROM23MM7THETRACKJOINTSELEVATIONDEVIATIONANDCENTERLINEDEVIATIONLESSTHAN1MM8THEHORIZONTALDEVIATIONSHOULDNOTBEGREATERTHAN1/1000,ANDTHETWODRIVINGWHEELISSKEWEDTOTHECONTRARY,ANDTHELENGTHOF1ISMEASURED9NOTGREATERTHAND/40010ALLWHEELTREADSMUSTBEIN1PLANES,THEDEVIATIONSHOULDNOTBEGREATERTHAN05MM11THERELATIVEDEVIATIONISALLOWEDTOBE4MM11VEHICLETRANSPORTTHATSOKMACHINE1WHEELDEVIATION2CHECKTHEWHEELSONTHESAMEBALANCEBEAM3TRACKAPPEARANCEEXAMINATIONTRACKAPPEARANCEEXAMINATIONVERTICALSLOPEGAUGEDEVIATIONTHERELATIVEELEVATIONDIFFERENCEBETWEENTWOTRACKS4RAILCLAMPMAINTENANCE5DEVIATIONOFCRANESPANMEASUREDBYWHEEL6THEDIAGONALDEVIATION1MEASUREDBYTHEWHEELTHEHORIZONTALANDVERTICALDEVIATIONSOFTHECARTWHEELSARETHESAMEASTHOSEOFTHESMALLWHEELS2THESYMMETRICALPLANEOFTHETWOWHEELSONTHESAMEBALANCEBEAMSHALLBEINTHESAMEVERTICALPLANE,ANDTHEALLOWABLEDEVIATIONSHALLNOTBEGREATERTHAN1MM3TECHNICALSTANDARDSINCLUDINGITEMSSUCHASAPPEARANCE,INCLINATION,GAUGE,ETCTHERESHALLBENOCRACKSINTRACK,ANDTHEAMOUNTOFWEARSUCHASRAILTOP,TRACKHEADANDSIDESHALLNOTEXCEED3MMTHELONGITUDINALINCLINATIONOFCRANETRACKSHALLNOTBEGREATERTHAN5/1000THEVALUEISLESSTHANOREQUALTO10MMTHETWOTRACKSINTHESAMESECTIONOFTHERELATIVEELEVATIONDEVIATIONLESSTHAN10MM4THEWEARINGAMOUNTOFTHEJAWSHOULDBECHANGEDMORETHAN40OFTHEORIGINALTHICKNESS,ANDTHEELECTRICRAILCLAMPSHALLPAYATTENTIONTOADJUSTINGTHESAFETYRULERTOMAKETHEPOINTERINTHEPRESCRIBEDPOSITION5WHENTHESPANISL30M,SPANDEVIATIONSHOULDBENOMORETHAN5MM,WHENTHEL30MSPANDEVIATIONSHOULDBELESSTHAN8MM6WHENTHESPANISLESSTHAN30M,THEDEVIATIONSHOULDBENOMORETHAN5MM,WHENL30M,THEDEVIATIONSHOULDBENOGREATERTHAN10MMBRIDGECRANEREPAIRPROJECTANDTECHNICALSTANDARDSMETALSTRUCTUREPARTSERIALPARTSNAMEBIGREPAIRPROJECTTECHNICALSTANDARD1MAINBEAMSEVERALWHATSHAPEINSPECTIONOFCAMBEROF1MAINBEAM2DEFLECTIONTESTUNDERMAINBEAM3HORIZONTALSIDEBENDTEST4THEWAVESHAPEOFTHEWEB1,THEMIDSPANOFARCHISL/1000,ANDTHEALLOWABLEDEVIATIONIS20OFTHECAMBER2FULLSPANELASTICDEFLECTIONISLESSTHANL/700,NOLOADDEFLECTIONOFMIDSPANDEFORMATIONSHOULDNOTEXCEED06/1000LBEYONDTHISSPECIFIEDVALUE,ITSHALLBEREPAIREDANDSTRENGTHENED3CROSSHORIZONTALSIDESHOULDNOTBEGREATERTHANL/20004THEWAVECRESTOFTHECOMPRESSIONZONESHALLNOTBEGREATERTHAN07,ANDTHEWAVECRESTOFTHETENSILEZONESHALLNOTBEGREATERTHAN12ANDTHETHICKNESSOFTHEDELTAWEB2BRIDGEFRAMEGROUPLOADING1HORIZONTALDIRECTIONTWODIAGONALTEST2VERTICALDIAGONALTESTOFTWODIRECTIONS3THEDEVIATIONOFTROLLEYTRACKTOTHELONGITUDINALCENTEROFTHEBRIDGE1,THEALLOWABLEDEVIATIONOFBOXGIRDERIS5MM,ANDTHEBARRACKLIANGYUNXUDEVIATIONIS10MM2ALLOWABLEDEVIATION10MM3ALLOWABLEDEVIATIONSHALLBELESSTHAN3MMBOX3SHAPEINSPECTIONOFCRACKS12COATINGANDANTICORROSIONOFMETALSTRUCTURES1THERESHOULDBENOCRACKSANDCRACKSINTHEMETALSTRUCTURE2THEPAINTSHALLBEKEPTINGOODCONDITIONTOPREVENTCORROSION,ANDTHECORROSIONSHALLNOTEXCEED10OFTHEORIGINALTHICKNESS4TRUSSFRAMERODTHEBENDINGFORCEOFTHEMAINMEMBEROFTHETRUSSJOINTISNOTMORETHAN1/1000,BUTTHEMAXIMUMLENGTHSHOULDNOTBEGREATERTHANTHELENGTHOFTHE2MM1MEMBERBRIDGECRANEOVERHAULPROJECTSANDTECHNICALSTANDARDSELECTRICALEQUIPMENTPARTSTECHNICALSTANDARDSFORLARGEREPAIRITEMSOFCOMPONENTS1THEMOTOR1OPENTHEMOTOR,CLEANTHEBEARINGS,ANDREPLACETHENEWOILTOMEASURETHESTATORANDROTORINSULATIONRESISTANCE2OVERHAULOFMOTORSHAFT3WINDINGOVERHAUL4INSPECTIONOFTHECLEARANCEBETWEENTHEENDSOFTHEENDCAPS5THEMAINTENANCEOFTHESLIPRINGANDBRUSH1FORTHEINSTALLATIONOFTHENEWMOTORSTATORINSULATIONRESISTANCESHOULDBEGREATERTHAN2M,THEROTORINSULATIONRESISTANCESHOULDBEGREATERTHAN08MTHEMOTORUSEDINTHESTATORINSULATIONRESISTANCESHOULDBEGREATERTHAN05M,THEROTORINSULATIONRESISTANCEGREATERTHAN05MSUCHASNOTUPTOTHESTANDARD,SHOULDBEREMOVEDTODRYINTHECASEOFDRYING5070,THESTATORINSULATIONRESISTANCEREACHES1M,ANDTHEROTORINSULATIONRESISTANCESHOULDBEGREATERTHAN05M2AFTERTHEOVERHAUL,THEMOTORSHAFTSHALLNOTBECRACKED,THEBENDINGSHALLNOTEXCEED02MM,ANDTHEJOURNALSHALLMEETTHEREQUIREMENTSOFTHEDRAWING3WINDINGISNOTALLOWEDTODAMAGE,TOENSURETHATTHEPAINTISINGOODCONDITION,INTHEREPAIR,NOTALLOWEDTOUSEGASOLINE,OIL,KEROSENEANDOTHERLIQUIDSSCRUBTHEWINDING4THEENDCLEARANCEOFTHEENDCAPISSHOWNINTABLEMMTHECLEARANCEOFTHEBEARINGHOLEOFTHEENDCOVERSHALLNOTBEGREATERTHAN005MMENDCAP,OUTERDIAMETER3005008001000THEMAXIMUMCLEARANCESARE005,010,015,0205BRUSHHOLDERSPRINGPRESSURESHOULDNOTBELESSTHAN005200NCM2,ALL1MOTORBRUSHPRESSURESHOULDBECONSISTENT,BRUSHANDBRUSHCLEARANCESHOULDBELESSTHAN02MM,THESURFACEOFTHESLIPRINGSARENOTALLOWEDBYXUANDDEEPTHEBRUSHMUSTBEAGOODCONTACT,THESLIPRINGELLIPTICITYSHOULDNOTEXCEED002005M_THE2CONTROLLERANDCONTACTOR1AREDISASSEMBLEDANDCLEANED2ADJUSTTHEPRESSURE,REPAIRCONTACT1HANDLESHOULDBEFLEXIBLEROTATION,NOJAMPHENOMENON2THENORMALCONTACTPRESSUREIS1017N,THECONTACTWEARISGREATERTHAN3MM,ANDTHECONTACTPIECESHOULDNOTBELARGERTHAN15MMTHE3RESISTOR1ISDISASSEMBLEDANDCLEANED2RESISTORS1REMOVETHEOXIDELAYER,TIGHTENTHESCREWS,CORRECTSPACINGOFEACHRESISTORWITHASBESTOSPAPER2ITISFOUNDTHATTHECRACKSCANBEREPAIREDANDWELDED,ANDNEWPIECESSHOULDBEREPLACEDWHENTHEWHOLEPIECEISBROKEN4LIMITSWITCH1CLEANANDREPAIRWORNPARTS2ADJUST1REPLACETHEWORNPARTS,TIGHTENTHESCREWS,ANDASKTHESPACINGDEVICETOBESENSITIVEANDRELIABLE2WHENTHEHOOKPULLEYBLOCKRISESTOTHELOWERCOVER300MMOFTHECRANESMAINBEAM,ITSRISINGLIMITSWITCHSHALLBEOPERATEDTHECRANESHALLBEOPERATEDATABOUT200MMORTWOCRANESFROMTHETRACKENDORABOUT300MM,ANDTHESTROKESWITCHSHALLBEOPERATED5,ELECTRICAPPLIANCE1WEAR,DEFORMATIONOVERHAUL2CHECKINSULATOR1ALUMINUMSTEELWEARSHOULDNOTEXCEED25OFTHEORIGINALDIAMETER,SUCHASDEFORMATIONSHOULDBECORRECTEDTIGHTENTHESCREWS2THEINSULATIONRESISTANCESHALLNOTBELESSTHAN1M6WIRES1REPLACEAGINGANDPOORLYINSULATEDWIRESANDBUSHINGS2CHECKINSULATION1CHANGETHELEADANDBUSHINGASREQUIRED,THERADIUSOFCURVATURESHOULDNOTBELESSTHAN5TIMESTHEDIAMETEROFTHEPIPE,THEBENDINGOFTHEPIPESHOULDNOTBELESSTHAN90DEGREES2THEINSULATIONRESISTANCEBETWEENTHECONDUCTORANDTHEGROUNDSHALLNOTBELESSTHAN05M7LIGHTNINGPROTECTIONANDGROUNDINGINSULATIONINSULATIONRESISTANCEINSPECTION,GROUNDINGANDLIGHTNINGARRESTERGROUNDINGRESISTANCESHOULDBELESSTHAN4OHMS,GROUNDINGWIRESHALLBEUSEDNOTLESSTHAN150MM2CROSSSECTIONGALVANIZEDFLATIRON,10MM2BARECOPPERWIRE30MM2GALVANIZEDROUNDSTEELTHECABANDTHECRANEBODYGROUNDINGCONNECTIONUSES410MMGALVANIZEDFLATIRON,THECONNECTIONDEVICESHOULDNOTBELESSTHANTWO8LIGHTINGREPLACEMENTWIRE,CHECKLAMPSANDLOWVOLTAGETRANSFORMERS,REPLACEMENTOFDAMAGEDPARTS,TOENSURESAFETY9THECABLEREELADJUSTSTHEWINDINGMOMENTOFTHECABLEREEL,SOTHATTHECABLEANDHOISTINGMECHANISMORTHERUNNINGMECHANISMOFTHEBIGCARKEEPBALANCEANDADJUSTTHEWINDINGMOMENTNINE,LOADTESTANDACCEPTANCE1PREPARATIONBEFORELOADTEST1TURNOFFTHEPOWERANDCHECKTHEFIRMNESSOFALLCONNECTIONS2CHECKWHETHERTHEWINDINGCONDITIONOFTHEROPEINTHEREELORPULLEYBLOCKISNORMAL3CHECKTHEINSULATIONRESISTANCEOFTHECIRCUITSYSTEMANDALLTHEELECTRICALEQUIPMENTINACCORDANCEWITHTHETECHNICALREQUIREMENTS4GREASEINJECTIONATEACHLUBRICATIONPOINT,CHECKTHEREDUCER,BRAKE,HYDRAULICTANKANDSOON5REMOVEALLARTICLESTHATIMPEDETHELOADTESTONTHECRANESRUNNINGTRACK,THECRANEANDTHETESTAREA6PREPAREHEAVYLOADFORLOADTEST,THEBESTCOMBINATIONCANBERATEDLOAD50,75,100,125WEIGHT7DESIGNATEDPERSONNELIFTHEDRIVERSINSPECTIONPERSONNEL,THEGROUNDCOMMANDPERSONNEL,THEBOLTHOOKLIFTINGPERSONNEL,ANDTHETESTIRRELEVANTPERSONNEL,MUSTLEAVETHECRANETESTSITE2、AIRLOADTESTSTARTEACHMECHANISMSEPARATELY,FIRSTRUNATLOWGEAR,ANDTHENOPERATEATRATEDSPEEDATTHESAMETIME,THEDRIVINGDEVICE,TRANSMISSIONDEVICE,SUPPORTDEVICEANDWORKINGDEVICEOFEACHMECHANISMSHOULDBE