Ingersoll-Rand 7870-F-( ) Model Identification, Operation, Safety Guide for Portable Grinder USE

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MODEL IDENTIFICATION

Thegrindermodelslistedinthemodelidentificationtableabovearefurnishedwithcolletassembly41753-o asstandardequipmentandareintendedforusewith mountedWheels andshallnotbeusedwith othertypegrindingwheelsunlessa properwheelguard,recommendedbythegrindermanufacturerisattachedtothe

grinder. See ”Grinding Wheel Mounting lnstructions”, page 5.Other size collet inserts or other collet assemblies listed on page 11 can furnished wi models.

The above listed grinder models that are furnished with optional arbor assembly 36934, mustwith wheelalsobeguardequipped37900 (2" maximum wheel diameter). Arborassembly38934isforusewith type1non-threadedgrindingwheelsonly.See“GrindingWheelMountingInstructions”,page5 and“Accessories”,page11.

Theabovelistedgrindermodelsthatarefurnishedwithoptionalconewheeladapter37292-( are)forusewithtypes16,17,18,18Rand19coneandplugwheelsand shallnotbeusedwithothertypegrindingwheelsunlessa properwheelguard,recommendedbythegrindermanufacturer,isattachedtothegrinder.Bee“Grinding WheelMountingInstructions”,page5 and“Accessories’section,page11.

OPERATION

Safe and efficient operation of your ARO grinder can best be attained by observing proper operating, inspection and maintenance procedures. Allo qualifiedpeopleto operategrinderandsubjecteachgrindertoa regularinspectionandmaintenanceprocedureThe.qualifiedgrinderoperatormustbecarefully instructedinthesafeoperationanduseofthegrinder,includingastudyofthemanufacturer’sliteratureThe.grinderoperatorshouldhaveagoodattituderegarding

safety.

OperatorSafetyEquipmentThe.grinderoperatorshallwearsafetygogglesor

markedon the wheel,blottersor packaging,shallequalor exceedthe rated

faceshieldatalltimesthegrinderisturnedon.Otherprotectiveclothingshallbe

speedstampedon thegrinder.

wornif necessaryforsparkdeflectionRespirators.shallbeusedinpoorly venti-

 

latedareas.Adjacentpersonnelshall beprotectedfromgrindingsparksand

Ateachwheelchange,Arorecommendsthefreespeedbecheckedbycompe-

wheelfragmentsbyprotectivebarriers.

tentauthorizedpersonnel,usinga goodreliabletachometer,toassurethatthe

 

maximumtoolspeedislowerthanmanufacturersratedspeedfor thewheeltobe

Starting and Stopping. Before starting agrinder, the operator shall makeusedsure.Aspeedthat checkshallneverbemadewithgrindingwheelonthegrinder.

nooneisintheunguardedplaneofwheel rotationUpon.mountinganewwheel,

 

grindershallberunatoperatingspeedwiththesafetyguardinplaceorinapro-

Grindersshallnotbeoperatedat a speedexceedingits ratedspeed.

tectedenclosureforatleastoneminutebeforeapplyingthewheeltothework.

Ifawirebrushshouldeverbeusedwiththistool;insurethespeedratingofthe

Checkspeedandbalanceofwheel.

 

brushisgreaterthanthespeedofthetoolthebrushistobeusedwithandinsure

Beforea grinderis putdown,thethrottleshallbereleasedandthewheelshall

thebrushconformstoapplicablesafetystandardsBe.certainthebrushiscom-

cometo a stop.Toolrests,hangersor balancersarerecommended.

patiblewithmountingof thetool.Alwaysusea wheelguard.

Useonlywheelswithadequatespeedratings.Themaximumoperatingspeed

Userecommendedguard.

SAFETY GUIDE FOR PORTABLE GRINDER USE

Borneofthe morecommoncausesof wheelbreakageare:Impropermountingof thewheels,Improperspeeds,abusiveoperationandcarelesshandling.

DO

and

DON’T

Doalwayshandleand storewheels In a careful manner(handlewith due

Don’t usea wheelthat has beendropped.

regard,grlnding wheels arefragile).

 

Don’tforceawheelontothespindleor alterthe sizeof the mounting.lf the

Grlndingwheelsshall bestoredInprotectiveracksor containersandpro-

wheelwon’t fit the spindle, get onethat will.

tectedfrom moistureand temperatureextremes.

 

Don’t use mountingflanges on which the bearingsurfacesarenot clean

Dovisually Inspect all wheels before mounting for possible damageIn

and flat.

transit.

 

Don’t tighten the mounting nut excessively.Tighten only sufficiently to

Docheckmaximumoperating speedestablishedfor the wheel against

drive the wheel and preventslippage.

grinders speed.

 

Don’tgrind on the sideof the wheelunlesswheelis specifically designed

Do check mounting flanges for correct size and design (see “Accessories”forthat purpose.

page11.

 

Don’t start the grinder until the wheel guard Is In place.

Douse mounting blotters supplied with wheelswhereapplicable.

 

Don’tjamthe wheel Into the work,

Dobesuretool is kept in first class operatingcondition.

 

Don’t stand directly In front of a grinding wheel whenevera grinder Is

Doalwaysuse a guard covering at least 1/2of the grinding wheel.

 

Started.

Doallow newly mountedwheels,with guardIn place,to run at operating

Don’t grind materialfor which the wheel Is not designed.

speedfor at leastone minute beforegrlnding

 

Grinding In groovesmaybe hazardous.

Doalwayswearsafetyglassesor goggleswhen grinding.

 

 

Doalwaysobserveall safety rules when operatingor handling portable grinders.

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Contents At the air inlet of the tool Series Short GrindersCedures Failureto Observethe Followingwarningscould Resultin Injury Operate at 90 p.s.i.g .2 bar/620 kPa maximum air pressureAIR Supply Requirements Routine Lubrication RequirementsRecommended Lubricants Safety Guide for Portable Grinder USE Model IdentificationOperation DON’TMandrel Overhang Dimension Grinding Wheel Mounting InstructionsMounting Instructions for Mounted Wheels Mounting Instructions for Type 1 Grinding WheelsMotor Section Disassembly and Assembly of ToolsHead Section Typical Cross Section of Tool Assembly DisassemblyMotor Section Head when assembling Head SectionRemove nut 36776 and valve components From headDisassemblyassembly Accessories 41753- 3-PIECE Collet AssemblyErickson 3-PIECE Collet Assembly LOCK-OFF Lever AssemblyTrouble Shooting Dimensional Data

7873-F, 7872-F, 7870-F-( ), 7871-F-( ) specifications

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