Craftsman 7 Gallon Air Compressor Manual
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OwnersManual AIRCOMPRESSOR 7-gallon 1HP OilLubricated ModelNo.921.1 CAUTION: Beforeusingthisproduct, readthismanualandfollow allitsSafetyRulesand OperatingInstructions. •SafetyInstructions •Installation&Operation •Maintenance&Storage •TroubleshootingGuide •PartsList •EspaSol,p.10 Sears,RoebuckandCo.,HoffmanEstates,IL60179U.S.A. wwwsearscorn 5/2C_2005 PamNOE101434
TABLEOFCONTENTS Page Warranty.............................................................SeeBelow SafetySymbols...........................................................1 ImportantSafetyInstructions&Guidelines.....................................1 Specifications............................................................2 Glossary................................................................2 DutyCycle..............................................................2 Parts&Features.........................................................3 Installation&Assembly....................................................4 OperatingProcedures.....................................................5 Maintenance.............................................................6 Storage................................................................6 TroubleshootingGuide.....................................................7 ExplodedView...........................................................8 PartsList...............................................................9 Espafiol................................................................10 ONEYEARFULLWARRANTYONCRAFTSMANAIRCOMPRESSOR tfthisCraftsmanAirCompressorfailsduetoadefectinmaterielorworkmanshipwithinone yearfromthedateofpurchase,RETURNITTOANYSEARSSTOREORPARTSANDREPAIR CENTEROROTHERCRAFTSMANOUTLETINTHEUNITEDSTATESFORFREEREPAIR. IfthisCraftsmanAirCompressorisusedforcommercialorrentalpurposes,thiswarranty appliesforonlyg0daysfromthedateofpurchase.Thiswarrantygivesyouspecificlegalrights andyoumayalsohaveotherrightswhichvaryfromstatetostate. Sears,RoebuckandCo.,Dept.817WA, HoffmanEstates,IL60179
SafetySymbols Theinformationlistedbelowshouldbereadandunderstoodbytheoperator.Thisinformationisgiventoprotectthe u_erwhileoperatingandstoringtheaircompressor.Weutil_ethesymbolsbelowtoallowthereadertorecognize imeortantinfermationabouttheirsafety Indicatesanimminenttyhazardoussituationwhich,if netavoided,willresultindeathorseriousinjury. Indicatesapotentiallyhazardoussituationwhich,ifnet avoided,couldresultindeathorseriousinjury, Indicatesapotentiallyhazardoussituationwhich,ifnot avoided,mayresultinminorormoderateinjury. Whenusedwithoutthesafetyalertsymbolindicates apotentialiyhazardouss[tu_L_enwinch,ifnotavoided, mayresultinpropertydamage, ImportantSafetyInstructionsandGuidelines •Saveallinstructions Improperoperationormaintenanceofthisproductcouldresultinseriousinjuryand/orpropertydamage.Readand understandallofthewarningsandsafetyinstructionsprovidedbeforeusingthisequipment. RiskofMovingParts RiskofBurns RiskofFalling i RiskfromFlyingObjects Theaircompressorshouldbeoperatedonadedicated15ampcircuit.Ifthecircuit doesnothave15freeampsavailable,alargercircuitmustbeused.Alwaysuse moreairhosebeioreutilizingextensioncords.A!lextensioncordsusedmustbe12 gaugewithamaximumlengthol25ft.ThecircuitfusetypemustbeatimedelayLow voltagecouldcausedamagetothemotor. Iftheaircompressorisinoperation,allguardsandcoversshouldbeattachedor installedcorrectly.Ifanyguardorcoverhasbeendamaged,donotoperatethe equipmentuntiltheproperpersonnelhascorrectlyrepairedtheequipment.Thepower cordshouldbefreeefanymovingparts,twistingand!orcrimpingwhileinuseand whileinstorage. Therearesudacesonyouraircompressorthatwhileinoperationandthereaftercan causeseriousburnsiftouched.Theequipmentshouldbeallowedtimetocoolbefore anymaintenanceisattemptedItemssuchasthecompressorpumpandtheoutlet tubeerenormallyhotduringandafteroperation. Operationottheaircompressorshouldalwaysbeinapositionthatisstable.Never usetheaircompressoronarooftoporelevatedpositionthatcouldallowtheunittofal! orbetippedover.Useadditionalairhoseforelevatedjobs. AlwayswearANSIZ87.1approvedsafetyglasseswithsideshieldswhentheair compressorisinuse.Turnofftheaircompressoranddraintheairtankbefore performinganytypeofmaintenanceordisassemblyofthehosesorfittings.Never pointanynozzleorsprayertowardanypartofthebodyoratotherpeopleoranimals.
Lnp_antSafelyInstructions&Guidelines RiskofBreathing Riskof ElectricalShock Riskof ExplosionorFire RiskofBursting Avoidusingtheaircompressorinconfinedareas.Alwayshaveadequatespace (12inches)onallsidesoftheaircompressor.Alsokeepchildren,pets,andothersout oftheareaofoperation.Thisaircompressordoesnotprovidebreathableairforanyone oranyauxiliarybreathingdevice.SprayingmatedaTwillalwaysneedtobeinanother areaawayfromtheaircompressortonetallowintakeairtodamagetheaircompressor fitter, Neverutilizetheaircompressorintherainorwetconditions.Anyelectricalissues orrepairsshouldbeperformedbyauthorizedpersonnelsuchasanelectricianand shouldcomplywithallnationalandlocalelectricalcodes.Theaircompressorshould alsohavetheproperthreepronggroundirigplug,correctvoltage,andadequatefuse protection. Neveroperatethecompressornearcombustiblematerials,gasolineorsolventvapors. Ifsprayingflammablematerials,locatetheaircompressoratleast20feetawayfrom thesprayarea.Neveroperatetheaircompressorindoorsorinaconfinedarea. Alwaysdraintheaircompressortankdailyoraftereachuse.Ifthetankdevelopsaleak, thenreptacetheaircompressor.Neverusetheaircompressorafteraleakhasbeen foundortrytomakeanymodificationstothetank.Nevermodifytheaircompressors factorysettingswhichcontrolthetankpressureoranyotherfunction. Specifications Pump..........................Oil-lubedirectdrive Motor...........................1.0HP(Induction) Bore.......................................1.65_ Stroke......................................126 VoltageSinglePhase.......................120VAC MinimumCircuitRequirement................15Amps AirTankCapacity.........................7Gallons Cut-inPressure.............................95PSI Cut-outPressure...........................125PSI [email protected] OilCapacity.........................90mLor3oz. OilType.........................SAE30Non-detergent Glossary CFM:Cubicfeetperminute. SCFM:Standardcubicfeetperminute;aunitofmeasure forairdelivery. PSIG:Poundspersquareinchgauge;aunitofmeasure forpressure. ASME:AmericanSocietyofMechanicalEngineers. CaliforniaCode:UnitmaycomplywithCaliforniaCode 462(I)(2)/(U)(2). Cut-InPressure:Theaircompressorwillautomatically starttorefillthetankwhenthepressuredrops belowtheprescribedminimum. Cut-OutPressure:Thepointatwhichthemotorstops whenthetankhasreachedmaximumair pressure, CodeCertification:Productsthatbearoneormoresf thefollowingmarks:UL,ULc,ETL,CSA,have beenevaluatedbyOSHA-certifiedindependent safetylaboratoriesandmeettheapplicable UnderwritersLaboratoriesStandardsforSafety. DutyCycle Thisisa50%dutycycleaircompressor.Donotruntheaircompressormorethan30minutesofonehour.Doingso coulddamagetheaircompressor. 2
Parts&Features Seefiguresbelowforreference. AirIntakeFilter Providescleanairtothepumpandmustalways bekeptfreeofdebris.Checkonada!lybasisor beforeeachuse. _! --OilFillCap 0_--OilSightGauge RegulatorGauge J|Indicatestheoutgoingairpressuretothetootandis k controlledbytheregulator. PressureReliefTube TankPressureGauge_ Indicatesthereserveairpressureinthetank. I I _ressureSwitch Thiscontrolsthepowertothemotorandalso thecut-in/cut-cutpressuresettings.Thisswitch servesastheAuto-OnfOffpositionsfortheunit, J PressureReliefValve Thepressurereliefvalve,locatedon thesideofthepressureswitch,is designedtoautomaticallyrelease compressedairwhentheair compressorreachescut-out pressure.Thereleasedairshould on}yescapemomentarilyandthe valveshouldthenclose. J Outlet Tube ! ITankDrainValve Usedtodraincondensationfromthe airtanK.Locatedatbottomoftank. TankSafetyValve Usedtoallowexcesstankpressure toescapeintothe.atmosphere.This valveshouldonlyopenwhenthe tankpressureisabovethe maximumratedpressure. Regulator Theairpressurecomingfromtheair tankiscontrolledbytheregulator. Toincreasethepressure,turnthe knobclockwiseandtodecreasethe pressureturntheknob counterclockwise. J QuickConnect1 OffersaquickreleasefeatureIorattachingandremovingthe airhose. CheckValvenl Whenthepumpisnotinoperation,thevalveclosestoretai airpressureinsidethetank.Aninternalcomponent. 3
Installation&Assembly Theaircompressorshouidbeturnedoff,unpluggedfrom thepowersource,theairbledfromthetankandtheunit allowedtimetocoolbeforeanymaintenanceisperformed. Personalinjuriescouldoccurfrommovingparts,electrical sources,compressedairorhotsurfaces.Thequick connectassemblymustbeattachedbeforeuse.Failure toassemblecorrectlycouldresultinleaksandpossible injury.Ifunsureofassemblyinstructionsoryouexperience difficultyintheassemblypleasecallourtollfreenumber forassistance. InstallingWheels Thewheelsandhandledonotprovideadeguateclearance, stabilityorsupportforpullingtheunitupanddownstairs orsteps.Theunitmustbeliftedorpusheduparamp. Itmaybenecessarytobraceorsupportoneendofthe aircompressorwhenattachingthewheels,becauseitwill haveatendencytotip. ItemsNeededForAssembly 1gramoradjustablewrenchforshoulderbolt •17mmeradiustablewrenchfornylonlocknut Installoneshoulderbolt,washer,andonenutforeach wheelusingbolthalesprovidedinthewheelbracket.The shoulderboltwillinstallfromtheoutsideofthewheel throughthetopholeinthewheelbracket.Tightensecurely withthewasherandnutpositionedontheinsideofthewheel bracket. Assembly 1.Removeaircompressor,manual,airfilterassembly, andaccessoriesfrompackaging. 2.Removetheplasticplugfromthecompressorintake port.(seediagrambelow) 3.Installthefilterinthecompressorintakeport. (seediagrambelow) 4.Removetheoilfillcapfromthecrankcaseandfilluntil theoilreachesthetopofthereddotinthesightglass. Oilcapacityis3oz.(seebelow)UseSAE-30non-detergent (APICG/CDheavydutymotoroil).Underextremecold weatherconditionsuseSAE-t0weightoil. 5.Replacetheoilcap. \[ EstimatedAssembtyTime:Approximately5minutes 4 GettingStarted-LocationoftheAirCompressor Theaircompressorshouldalwaysbelocatedinaclean, dry,andwellventilatedenvironment.Theunitshouldhave atminimum,12inchesofspaceoneachside.Theairintake filtershouldbefreeofanydebrisorobstructions.Check theairfilteronadailybasistobesureitiscleanandin workingorder. GroundingInstructions Thisproductmustbegrounded.Intheeventofanelectrical shortcircuit,groundingreducesthedskofelectricshock byprovidinganescaperoutefortheelectriccurrent. Thisproductisequippedwithacordhavingagrounding wirewithanappropriategroundingplug.(Seethefigure below.)Thepiugmustbepluggedintoanoutletthatis propertyinstalledandgroundedinaccordancewithall localcodesandordinances.Checkwithaqualified electricianorservicepersonneliftheseinstructionsare notcompletelyunderstoodorifindoubtastowhetherthe tootisproperlygrounded. ..r_.-_FS:>Grounded ,I .///]*_l-_._I,f.Outlet GroundingPinc..., % Improper installationofthegroundingplugwil!resultina riskofelectricshock.Ifrepairorreplacementofthecord orplugisnecessary,donotconnectthegroundingwireto eitherfiatbladeterminals.Checkwithaqualifiedelectrician orservicemanifthegroundinginstructionsarenot completelyunderstood,orifindoubtastowhetherthe productisproperlygroundedDonotmodifytheplug provided;ifitwillnotfittheoutlet,havetheproperoutlet installedbyaqualifiedelectrician. Thisproductisforuseonacircuithavinganominalrating of120voltsandisfactory-equippedwithaspecificelectric cordandplugtopermitconnectiontoaproperelectric circuit.Makesurethattheproductisconnectedtoan outlethavingthesameconfigurationastheplug.No adaptershouldbeusedwiththisproductIftheproduct mustbereconnectedforuseonadifferenttypeofelectric circuit,qualifiedservicepersonnelshouldmakethe reconnection. ExtensionCords Useonlys3-wireextensioncordthathasa3-blade groundingplug,enda3-slotreceptaclethatwillaccept theplugontheproduct.Makesureyourextensioncord isingoodcondition.Whenusinganextensioncord,be suretouseoneheavyenoughtocarrythecurrentyour productwilldraw.Cordsmustnotexceed25feetand No.12AWGsizemustbeused.Anundersizedcordwill causeadropinlinevoltageresultingintossofpowerand overheating. BreakInProcedures Nobreakinprocedureisrequiredbytheuser.This productisfactorytestedtoensureproperoperationand pedormance.
OperatingProcedures Daih/Start-UpProcedures t.SettheAuto-OnlOfflevertotheOffposition, 2.Inspecttheaircompressor,airhose,andany accessories/tootsbeingusedfordamageorobstruction. Ifanyatthesementioneditemsereinneedofrepair/ replacement,contactyourlocalauthorizedservicedealer beforeuse, 3.Closethedrainvalve. 4.Checktheoillevelofthepump. 5,Connecttheairhosetothequickconnectsocketon theregulatorassemblybyinsertingthequickconnect plugontheairhoseintothequickconnectsocket.The quickconnectsocketcollarwillsnapforwardandlock theplugintoplaceprovidinganairtightsea!between thesocketandplug,Toreleasetheairhosepushthe collarbeckonthequickconnectsocket. 6.Plugthepowercordintotheproperreceptacle. 7.TurntheAuto-OnfOfllevertotheOn-Autopositionand thecompressorwillstartandbuildairpressureinthe tanktocut-outpressureandthenshutoffautomatically. 8.AdjusttheregulatortoaPSisettingthatisneededfor yourapplicationandbesureitiswithinthesafety standardsrequiredtoperformthetask.Ifusinga pneumatictool,themanufacturershouldhave recommendationsinthemanualforthatparticular toolonoperatingPSIsettings. 9.Theaircompressorisnowreadyforuse.Thefollowing inflationandcleaningaccessoriespackagedwiththis unitshouldonlybeoperatedatmaximumpressure of90PSI:blowgun,rubber-taperednozzle,inflation needles,adapter,andblowgunadapter. ® DailyShut-DownProcedures 1.SettheAuto-On/OfflevertotheOffposition. 2,Unplugthepowercordfromthereceptacle. 3.Settheoutletpressuretozeroontheregulator. 4.Removeanyairtoolsoraccessories,Whendraining thetank,alwaysuseearandeyeprotection,Drainthe tankinasuitablelocation;condensationwillbepresent inmostcasesofdraining. 5.Openthedrainvalveallowingairtobleedfromthe tankAfteralloftheairhasbledfromthetank,close thedrainvalvetopreventdebrisbuildupinthevalve, Whendrainingthetank,alwaysuseearandeyeprotection. Drainthetankinasuitablelocation;condensationwillbe presentinmostcasesofdraining. Waterthatremainsinthetankduringstoragewillcorrode andweakentheairtankwhichcouldcausethetankto rupture.Toavoidseriousinjury,besuretodrainthetank aftereachuseordaily.
Maintenance NOTE:Anyserviceprocedurenotcoveredinthe maintenancescheduleshouldbeperformedby qualifiedservicepersonnel. Theaircompressorshouldbeturnedoff,unplugged fromthepowersource,airbtedfromthetankand allowedtimetocoolbeforeanymaintenanceis performed. Toensureefficientoperationandlongerlifeofthe aircompressorunit,aroutinemaintenanceschedule shoutdbefollowed.Thefollowingscheduleisgeared towardaconsumerwhosecompressorisusediRa normalworkingenvironmentonadailybasis. ItemstoCheck./Ohanga ChockTankSafetyValve OverallUnitVisualCheck CheckAirFilter DrainTank CheckPowerCordforDamage ChangeOil CheckOilLevel Beforeeachuse ordaity X X X X X afterfirst50hours aftereveryi00hours X Storage Forstoringtheaircompressor,besuretodothefollowing: 1.Turntheunitoffandunplugthepowercordfromthe receptacle. 2.Removeallairhoses,accessories,andsirtoolsfrom theaircompressor. 3.Performthedailymaintenanceschedule. 4Openthedrainvalvetobleedallairfromthetank. 5.Closethedrainvalve. 6.Storetheaircompressorinacleananddrylocation. Notes
TroubleshootingGuide _Theaircompressorshouldbeturnedoffandunpluggedfromthepowersourcebeforeanymaintenance isperformedasweltastheairbledfromthetankandtheunitallowedtimetocoolPersonalinjuries couldoccurfrommovingparts,electricalsources,compressedair,orhotsurfaces. PROBLEM Airleaksatthecheckvalve oratthepressurereliefvaive, POSSIBLECORRECTION Adefectivecheckvalveresultsinaconstantairleakatthepressurereliefvalve whenthereispressureinthetankandthecompressorisshutoff.Drainthetank, thenremoveandcleanorreplacethecheckvalve. AirleaksbetweenheadandBesureofpropertorqueonheadbolts,ifleakremains,contactaservicetechnician. cylinder. Airleakfromsafetyvalve.Operatethesafetyvalvemanuallybypullingonthering.Ifthevalvecontinuesto leakwhenintheclosedposition,itshouldbereplaced. Ifthereisanexcessiveamountofpressuredropwhentheaccessoryisused, replacetheregulator. Pressurereadingonthe regulatedpressuregauge dropswhenanaccessoryis used. NOTE: Adjusttheregulatedpressureunderflowconditions(whileaccessoryisbeingused), Itisnormalforthegaugetoshowminimalpressurelossduringinitialuseofthe tool. Excessivetankpressure.MovetheAuto-On/OfflevertotheOffposition.Ittheunitdoesntshutoff,unplugit fromthepowersourceandcontactaservicetechnician. Motorwillnotstart.Makesurepowercordispluggedinandtheswitchison.Inspectforthepropersize fuseinyourcircuitbox.Ifthefusewastripped,resetitandrestarttheunit.If repeatedtrippingoccurs,replacethecheckvalveorcontactaservicetechnician Excessivemoistureinthe dischargeair. Airleaksfromthetankbody ortankwelds. Removethewaterinthetankbydrainingaftereachuse.Highhumidity environmentswillcauseexcessivecondensation.Utilizewaterfiltersonyourair line. NOTE: Watercondensationisnotcausedbycompressormalfunction.Besurethe compressorsairoutputisgreaterthanyourtooleairconsumptionrate. Neverddflinto,weldorotherwisemodifytheairtankoritwillweaken.Thetankcan ruptureorexplode.Compressorcannotberepaired.Discontinueuseoftheair compressor.