SECTION 00 - GENERAL INFORMATION
SECTION 10 - ENGINE AND FUEL SYSTEMS
SECTION 25 - FOUR WHEEL DRIVE REAR AXLE
SECTION 27 - DIFFERENTIAL, AXLES
SECTION 31- PTO
SECTION 33 – BRAKES
SECTION 35 - HYDRAULIC SYSTEM
SECTION 41 – STEERING
SECTION 44 - TWO-WHEEL DRIVE REAR AXLE
SECTION 55 – ELECTRICAL
SECTION 90 - PLATFORM
ThisrepairmanualprovidesthetechnicalinformationneededtoproperlyservicetheNewHolland MC22,MC28,andMC35tractors.Usethismanualin conjunctionwiththeoperator’smanualforcomplete operation,adjustment,andmaintenanceinformation.
OnNewHollandequipment,leftandrightare determinedbystandingbehindtheunit,lookingin thedirectionoftravel.
Throughoutthismanualandonmachinedecals,youwillfindprecautionarystatements(“ DANGER”, “WARNING”,and“CAUTION”)followedbyspecificinstructions.Theseprecautionsareintendedforthepersonal safetyofyouandthoseworkingwithyou.Pleasetakethetimetoreadthem.
Thisword“DANGER”indicatesanimmediatehazardoussituationthat,ifnotavoided,willresultindeath orseriousinjury.ThecolorassociatedwithDangerisRED.
Thisword“WARNING”indicatesapotentiallyhazardoussituationthat,ifnotavoided,couldresultin deathorseriousinjury.ThecolorassociatedwithWarningisORANGE.
Thisword“CAUTION”indicatesapotentiallyhazardoussituationthat,ifnotavoided,mayresultinminor ormoderateinjury.Itmayalsousedtoalertagainstunsafepractices.ThecolorassociatedwithCaution isYELLOW.
FAILURETOFOLLOWTHE“DANGER”,“WARNING”, AND“CAUTION”INSTRUCTIONSMAYRESULTIN SERIOUSBODILYINJURYORDEATH.
Theprecautionarystatement(“IMPORTANT”)isfollowedbyspecificinstructions.Thisstatementisintendedfor machinesafety.
IMPORTANT: Theword“IMPORTANT”isusedtoinformthereaderofsomethingheneedstoknowtoprevent minormachinedamageifacertainprocedureisnotfollowed.
NOTE: Instructionsusedtoidentifyandpresentsupplementaryinformation.
TheMC22,MC28,andMC35tractorshavebeen builtusingmetrichardware.
NOTE: Besuretousethehardwarespecifiedwhen usingtappedholes,astryingtoinstallametricboltin aninchthread,oraninchboltinametricthread,will damagethethread.
Certainhardwaremustbetightenedtospecific torquespecifications.Ifspecifictorquespecifications arenotnoted,tightenthehardwaretothestandard torquechartspecificationlistedinthismanual.
HardwareusedonNewHollandbalersisplatedwith zincchromate(goldcolor).Goldcoloredhardware hasdifferenttorquingrequirementsfromunplatedor zincplated(silvercolor)hardwarebecauseofthe differenceinthecoefficientoffrictionoftheplating material.Thetorquechartsinthismanuallistthe correctspecificationsforgold,silver,andunplated bolts.
Wheneverpossible,thenutshouldbetightened,not theheadofthebolt.Whentighteningusingthebolt head,theclamploadcanbelostbecausesomeof thetorqueappliedtwiststheboltinsteadof tensioning(stretching)it.Thetensionontheboltis whatholdsthejointtogether.
Approximately90%ofthetorqueappliedduring assemblygoestoovercomingfrictionbetweenthe parts.Theother10%isusedtotension(stretch)the bolt.Afterassembly,thefrictionalforcesdisappear, whichisthebasisforthesaying“Ifitdoesnotfail duringassembly,itwillnotfailinservice.”Thebolt maylaterfailduetootherfactors,butnotfrombeing overtightened.
Mostlocknutsarecoatedwithaspeciallubricantthat isdrytothetouch.Anytimealocknutisused,alower thannormaltorqueisrequired.Refertothetorque chartsinthismanualforspecificvalues.
Whenusingajamnuttolockaregularnut,thejam nutshouldbeinstalledfirstandtightenedtoonehalf therecommendedtorque,thenheldinplacewhile installingaregularnuttotherecommendedtorque.
Theadditionofantiseizecompound,Molykote,oil, graphite,oranyotherlubricanttoaboltdecreases thefrictionbetweenitandanut.Thismakesit necessarytoreducetherecommendedtorqueto preventovertensioningofthebolt.Whenusingthe torquechartsinthismanual,decreasethevalueby 20%wheneveralubricantisused.
Thefollowingprecautionsaresuggestedtohelppreventaccidents. SEESPECIFICINSTRUCTIONSINTEXTFORDETAIL.
Acarefuloperatoristhebestoperator.Most accidentscanbeavoidedbyobservingcertain precautions.Readandtakethefollowing precautions,beforeoperatingthecommercial mower,topreventaccidents.Equipmentshouldbe operatedonlybythosewhoareresponsibleand instructedtodoso.
Thiscuttingmachineiscapableofamputatinghands andfeetandthrowingobjects.Failuretoobservethe followingsafetyinstructionscouldresultinserious injuryordeath.
1.Allpersonswhowilloperatetheunitshouldread theOperatorsManualcarefullybeforeusingthe equipment.Lackofoperatingknowledgecan leadtoaccidents.
2.Permitonlyproperlytrainedandqualifiedpersonstooperatetheunit.
3.Usethestepplateswhengettingonandoffthe unittopreventfalls.Keepstepsandplatform clearedofmudanddebris.
4.UseanapprovedRolloverProtectiveStructure (ROPS)andseatbeltforsafeoperation.OverturningaunitwithoutaROPSandseatbeltcan resultindeathorinjury.IfthestandardROPSor seatbelthasbeenremoved,seeyourNewHollandDealerforareplacement.
5.AlwaysusetheseatbeltwithROPS.IftheROPS hasbeenremoved,donotusetheseatbelt.
6.Donotpermitanyonebuttheoperatortorideon theunit.Thereisnosafeplaceforextrariders.
7.Replacemissing,illegible,ordamagedsafety decals.
8.Keepsafetydecalscleanofdirtandgrime.
1.Thecooling system operatesunderpressure whichiscontrolledbytheradiatorcap.Itisdangeroustoremovethecapwhilethesystemishot. Alwaysturnthecapslowlytothefirststopandallowthepressuretoescapebeforeremovingthe capentirely.
2.Donotsmokewhilerefuelingtheunit.Keepany typeofopenflameaway.Waitfortheengineto coolbeforerefueling.
3.KeeptheCommercialMoweringoodoperating conditionforyoursafety.Animproperlymaintainedunitcanbehazardous.
4.Keepopenflameawayfrombatteryorcold weatherstartingaidstopreventfiresorexplosions.Usejumpercables,accordingtoinstructions,topreventsparkswhichcouldcauseexplosion.
5.Beforeservicing,parktheunitonafirm,levelsurfaceandapplytheparkingbrake.Removethe keytopreventaccidentalstart-up.
6.Escapinghydraulic/dieselfluidunderpressure canpenetratetheskin,causingseriousinjury.
• Donotuseyourhandtocheckforleaks.Usea pieceofcardboardorpapertosearchforleaks.
• Stoptheengineandrelievepressurebeforeconnectingordisconnectinglines.
• Tightenallconnectionsbeforestartingtheengineorpressurizinglines.
• Iffluidisinjectedintoskin,obtainmedicalattentionimmediatelyorgangrenemayresult.
7.Donotmodify,alter,orpermitanyoneelseto modifyoralterthisunitoranyofitscomponents, oranyunitfunctionwithoutfirstconsultingyour NewHollandDealer.
8.Thefueloilintheinjectionsystem isunderhigh pressureandcanpenetratetheskin.Unqualified personsshouldnotremoveorattempttoadjust apump,injectornozzle,oranyotherpartofthe fuelinjectionsystem.Failuretofollowtheseinstructionscanresultinseriousinjury.
9.SomecomponentsonyourCommercialMower, suchasgaskets,maycontainasbestos.Breathingasbestosdustisdangeroustoyourhealth. Youarethereforeadvisedtohaveanymaintenanceorrepairoperationsonsuchcomponents carriedoutbyanauthorizedNewHollandDealer. If,however,serviceoperationsaretobeundertakenonpartsthatcontainasbestos,theessentialprecautionslistedbelowmustbeobserved:
• Workoutofdoorsorinawellventilatedarea.
• Dustfoundontheunitorproducedduringwork ontheunitshouldberemovedbyextraction,not byblowing.
• Dustwasteshouldbedampened,placedina sealedcontainerandmarkedtoensuresafedisposal.
• Ifanycutting,drilling,etc.,isattemptedonmaterialscontainingasbestos,theitemshouldbe dampenedandonlyhandtoolsorlowspeed powertoolsused.
10.Continuouslongtermcontactwithusedengine oilhascausedskincancerinanimaltests.Avoid prolongedskincontactwithusedengineoil. Washskinpromptlywithsoapandwater.
11.Donotworkunderaraisedattachmentunlessit issecurelysupportedbyasuitablehoistorfloor jackandmultiplejackstands.
12.TheROPSandseatbeltmustbeproperlymaintainedandmustnotbemodified,drilled,oralteredinanyway.IftheROPSisdamaged,ifmust bereplacedandshouldnotbestraightenedor welded.
1.Watchwhereyouaregoing,especiallyatrow ends,onroads,aroundtreesandlowhanging obstacles.
2.Toavoidupsets,drivetheCommercialmower withcareandatspeedscompatiblewithsafety, especiallywhenoperatingoverroughground, whencrossingditchesorslopes,andwhenturningcorners.
3.Keeptheunitinthesamegearwhengoingdownhillasusedwhengoinguphill.Donotcoastor freewheeldownhills.
4.Whentheunitisstuckortiresarefrozentothe ground,goupforwardtopreventupset.
5.Alwayscheckoverheadclearance,especially whentransportingtheCommercialMower.
6.Avoidquickstops,especiallywhenanattachmentisraisedornotinstalled.Quickstopscan causeupsets.
7.DonotattachchainsorropestotheROPSfor pullingpurposes.
BeforeinstallingorusingPTO-drivenequipment, readthemanufacturer’smanualandreviewthe safetylabelsattachedtotheequipment.
1.WhenoperatingPTO-drivenequipment,shutoff theengineandwaituntilthePTOstopsbefore gettingofftheunitanddisconnectingtheequipment.
2.Donotwearlooseclothingwhenoperatingthe powertake-offorwhennearrotatingequipment.
3.WhenoperatingstationaryPTO-drivenequipment,alwaysplacethegearshiftleverinneutral, applytheparkingbrakeandblockinfrontwheels frontandback.
4.Toavoidinjury,donotclear,adjust,unclogorservicePTO-drivenequipmentwhenthetractorengineisrunning.
1.ReleasetheCommercialMowerHSTfootpedal, applytheparkingbrake,placePTOleverinthe “OFF”position,theliftcontrolleverinneutral positionandthetransmissioninneutralbefore startingtheengine.
2.Donotstarttheengineoroperatecontrolswhile standingbesidetheunit.Alwayssitintheseat whenstartingtheengineoroperatingcontrols.
3.Donotbypasstheneutralsafetystartswitch. ConsultyourNewHollandDealerifyourneutral safetystartcontrolsmalfunction.
4.Usejumpercablesonlyintherecommended manner.Improperusecanresultintheunitrunningaway.
5.Avoidaccidentalcontactwiththegearshiftlever whiletheengineisrunning.
6.DonotgetofftheCommercialMowerwhileitis inmotion.
7.DisengagethePTO,shutofftheengineandapplytheparkingbrakebeforegettingofftheunit.
8.DonotparktheCommercialMoweronasteepincline.
9.Donotoperatetheengineinanenclosedbuildingwithoutadequateventilation.Exhaustfumes cancausedeath.
10.Iftheengineoperateserratically,stoptheengine immediately.
11.Donotleaveequipmentintheraisedposition.
12.DonotoperatetheCommercialMoweroranyattachmentswhileundertheinfluenceofalcohol, medication,controlledsubstancesorwhentired.
13.Donotoperatenearditches,holes,embankmentsoranyotherterrainwhichmaycollapse undermachineweight.Theriskofmachinetipoverincreaseswhenthegroundislooseorwet.
14.Whenworkingincooperationwithotheroperators,alwaysletothersknowwhatyouaredoing aheadoftime.
15.Nevertrytomountordismountfromamoving unit.
16.DonotoperatetheCommercialMowerwithbare feet.Keephands,feetandclothingawayfrom power-drivenparts.
17.Donotdrivethemachineonstreetsorhighways. Watchfortrafficwhenyoucrossroadsoroperate nearroads.
18.Looktotherearbeforeandwhenbacking.You mustdisengagebladesbeforeshiftingintoreverse.Makesurethattheareaimmediatelybehindyouisclearofobstructionsorholesand smallchildren.Useextracautionwhenthemachineisequippedwithagrasscatcher.
19.DonotcrossgravelroadswiththePTOengaged.
20.Donotoperatethemowerdeckwithoutlocking thehoodandseat.
21.Disengagepowertothemowerdeckwhentransportingorwhennotinuse.
22.Disengagepowertothemowerdeckbefore backingup.Donotmowinreverseunlessabsolutelynecessaryandthenonlyaftercarefulobservationoftheentireareabehindthemower deck.
23.Whenmowingproceedasfollows:
a.Mowonlyindaylightoringoodartificial light.
b.Nevermakeacuttingheightadjustment whiletheengineisrunningiftheoperator mustdismounttodoso.
c.Checktheblademountingboltsforproper tightnessatfrequentintervals.
d.Shutofftheenginewhenremovingthe grasscatcherorclearingthechute.
24.Watchforholesintheterrainandotherhidden hazards.
25.Donotstoporstartsuddenlywhengoinguphill ordownhill.Mowupanddownthefaceofsteep slopes, nevercrosstheface.
26.Disengagepowertoattachment(s)andstopthe enginebeforeleavingtheoperatorsposition.
27.Neverleaveequipmentintheraisedposition.
28.Alwayskeepthedischargesideofthecutterdirectedawayfrompeopleandobjectswhichcould bestruckbydebristhrownfromthecutter.
29.InstallCommercialMowerweightstoincrease stabilitywhenoperatingonslopes.
30.Avoidquickstopsespeciallywhenthemower deckisraised.Quickstopswillcauseupset.
31.Keepallshieldsinplace.
32.Replacesafetyandwarningdecalswhenthey becomeillegible.
33.Thevehicleandattachmentsshouldbestopped andinspectedfordamageafterstrikingaforeign objectandthedamageshouldberepairedbeforerestartingandoperatingequipment.
34.Donotlubricateormakemechanicaladjustmentswhiletheunitisinmotionorwhentheengineisrunning.However,ifminorengineadjustmentsmustbemade,applytheparkingbrake securely,blockthewheelsanduseextremecaution.
35.Periodicallymaintainthemowerdeck.Tighten nuts,boltsandfittingsperiodicallyforsafeoperation.Checkthebladefortightness.
1.Undernocircumstancesshouldgasoline,alcoholorblendedfuelsbeaddedtodieselfuel. Thesecombinationscancreateanincreasedfire orexplosivehazard.Suchblendsaremoreexplosivethanpuregasolineinaclosedcontainer suchasafueltank.Donotusetheseblends.
2.Neverremovethefuelcaporrefuelwiththeenginerunningorhot.
3.Donotsmokewhilerefuellingorwhenstanding nearfuel.
4.Maintaincontrolofthefuelfillerpipenozzlewhen fillingthetank.
5.Donotfillthefueltanktocapacity.Allowroomfor expansion.
6.Wipeupspilledfuelimmediately.
7.Alwaystightenthefueltankcapsecurely.
8.Iftheoriginalfueltankcapislost,replaceitwith anapprovedcap.Anon-approved, proprietary capmaynotbesafe.
9.Keepequipmentcleanandproperlymaintained.
10.Donotdriveequipmentnearopenfires.
11.Neverusefuelforcleaningpurposes
12.Arrangefuelpurchasessothatwintergradefuels arenotheldoverandusedintheSpring.
Escapingfluidunderpressurecanpenetratetheskin causingseriousinjury.Relievepressurebefore disconnectinghydraulicorotherlines.Tightenall connectionsbeforeapplyingpressure.Keephands andbodyawayfrompinholesandnozzleswhich ejectfluidsunderhighpressure.Useapieceof cardboardtosearchforleaks.
IfANYfluidisinjectedintotheskinitmustbe surgicallyremovedwithinafewhoursbyadoctor familiarwiththistypeofinjuryorgangrenemay result.
SafetyisNOaccidentBealert!
WARNING
Thissymbolisusedtoattractyourattentionto thesafetyprecautionsthatshouldbeunderstoodbytheoperatortoavoidaccidents.
Whenyouseethissymbol-HEEDITSWARNING!
• Besuretoreadallinstructionsbeforeoperation.
• UsetheapprovedstandardRollOverProtective Structure(ROPS)andseatbeltatalltimes.
• DonotallowchildrentooperatetheCommercial Mower.Anyoneelseshouldbeproperly instructedastoitsoperation.
• Keepchildrenandpetsaway.Childrenandpets shouldbekeptasafedistanceawayfromthe mower.
• Stopoperationwhenanotherpersonapproaches.
• ImproperuseoftheCommercialMowercanresultininjury.Givecompleteandundividedattentiontotheworkyouaredoing.
• Knowyourcontrols.Knowhowtostoptheunit andengineinanemergency.
• Reducespeedonallsideslopesandsharpturns topreventtippingororlosingcontrol.
• Donotallowanyonetorideontheunitoranyof itsattachments.
• Neverallowthemowertodischargegrasstowardsanyone.
• Allguardsmustbeinplacebeforeoperatingthe unit.
• Ifsafetydecalsbecomeillegible,theyshouldbe replaced.
• Makecertaintheunitormowerdeckcannotbe startedbyunauthorizedpersonsbeforeleaving theunit.
• Donotwearloosefittingclothingthatmightget caughtinmowingparts.Also,keephandsand feetawayfrommovingparts.
• Wearanduseanyadditionalsafetyitemssuch ashardhat,safetybootsorshoes,eyeandhearingprotection,gloves,etc.,asappropriateorrequired.
• Settheparkingbrakeandstoptheenginebefore leavingtheseat.
• Stopenginebeforeworkingonmowerdeck.Stop enginebeforecleaningdischargechuteormakinganyadjustment,inspectionorrepairs.
• Periodicallymaintainthemower.Tightennuts, boltsandfittingsperiodicallyandlubricatethe mowerforproperandsafeoperation.Check bladesfortightness.
• Besurethelawnisclean.Removestones,wires, sticks,toysoranythingthatmightcatchorbe thrownbythemowerblade.
• Neverremovethefuelcaporrefuelwiththeenginerunningorhot.Donotsmokewhilerefuelling orstandingnearfuel.Wipeupspilledfuelimmediately.
• DonotoperatetheCommercialMowerinaconfinedarea.Exhaustfumesaredangerous.Only runtheengineoutofdoors.
• Disengageallclutchesandplacegearshiftin neutralbeforeattemptingtostartengine.
• Thedischargeguardmustbedownatalltimes duringmowingoperation.
• Ifthemowerstrikesaforeignobject,stopthe mowerandengineimmediately.Inspectthe mowerdeckfordamage.Repairanydamagebeforestartingagain.
Ifsafetyorinstructiondecalsbecomedamagedorillegible,newdecalsshouldbeobtainedfromyourNewHollandDealerandplacedattheiroriginalpositions.
WARNING:SAFEOPERATINGPROCEDURES
PARTNO:SBA390197760
LOCATION:OntheL.H.Fender
WARNING:KEEPHANDSANDCLOTHING
PARTNO:SBA390191352
LOCATION:OntheCoverofCoolingFan
WARNING:AVOIDQUICKSTOPS
PARTNO:SBA390195261
LOCATION:OntheFenderUnder Seat
DANGER:EXPLOSIVE/ACID--POISON
PARTNO:SBA390194390
LOCATION:TopofBattery
DANGER
PARTNO:SBA390195520
LOCATION:OntheROPS
LUBRICATIONANDMAINTENANCE
PARTNO:SBA390211740
LOCATION:UndersideofHood
INSTRUCTIONDECALS
STARTERSWITCH PARTNO:SBA390197280
LOCATION:OntheR.H.ofDash
RANGESELECTLEVER2WD PARTNO:SBA390173670
LOCATION:OntheL.H.Fender
PARKINGBRAKE PARTNO:SBA390197710
LOCATION:OntheL.H.Fender
RANGESELECTAND FWDCONTROLLEVER PARTNO:SBA390173650
LOCATION:OntheL.H.Fender
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