New Holland Workmaster 25S Tier 4B User manual

Part number 51421067
1st edition English
April 2018
SERVICE MANUAL
Workmaster™25S
Tier 4B (final)
Compact Tractor
Printedin U.S.A.
© 2018 CNH Industrial America LLC. All Rights Reserved.
NewHolland is a trademark registered in the United States and many other countries,
owned or licensed to CNH Industrial N.V., its subsidiaries or affiliates.

SERVICEMANUAL
Workmaster™25S25Hp,withoutcab
5142106720/04/2018
EN
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Contents
INTRODUCTION
Engine.......................................................................................10
[10.001]Engineandcrankcase.............................................................10.1
[10.216]Fueltanks..........................................................................10.2
[10.206]Fuellters..........................................................................10.3
[10.202]Aircleanersandlines..............................................................10.4
[10.254]Intakeandexhaustmanifoldsandmufer.........................................10.5
[10.400]Enginecoolingsystem.............................................................10.6
[10.414]Fananddrive......................................................................10.7
Four-WheelDrive(4WD)system..................................................23
[23.314]Driveshaft..........................................................................23.1
Frontaxlesystem.......................................................................25
[25.100]Poweredfrontaxle.................................................................25.1
[25.102]Frontbevelgearsetanddifferential...............................................25.2
[25.108]Finaldrivehub,steeringknuckles,andshafts.....................................25.3
Rearaxlesystem........................................................................27
[27.100]Poweredrearaxle..................................................................27.1
[27.106]Rearbevelgearsetanddifferential................................................27.2
[27.120]Planetaryandnaldrives..........................................................27.3
Hydrostaticdrive.........................................................................29
[29.200]Mechanicalcontrol.................................................................29.1
[29.218]Pumpandmotorcomponents......................................................29.2
[29.202]Hydrostatictransmission...........................................................29.3
PowerT ake-Off(PTO).................................................................31
[31.101]Rearmechanicalcontrol...........................................................31.1
[31.104]Rearelectro-hydrauliccontrol......................................................31.2
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[31.110]One-speedrearPowerTake-Off(PTO)............................................31.3
Brakesandcontrols....................................................................33
[33.120]Mechanicalservicebrakes.........................................................33.1
[33.110]Parkingbrakeorparkinglock......................................................33.2
Hydraulicsystems.......................................................................35
[35.000]Hydraulicsystems..................................................................35.1
[35.300]Reservoir,cooler,andlters........................................................35.2
[35.104]Fixeddisplacementpump..........................................................35.3
[35.350]Safetyandmainreliefvalves......................................................35.4
[35.114]Three-pointhitchcontrolvalve.....................................................35.5
[35.355]Hydraulichandcontrol.............................................................35.6
[35.726]Excavatorandbackhoehydrauliccontrols.........................................35.7
Hitches,drawbars,andimplementcouplings..................................37
[37.120]Rearthree-pointhitchlinkage......................................................37.1
Steering.....................................................................................41
[41.101]Steeringcontrol....................................................................41.1
[41.106]Tierods.............................................................................41.2
[41.206]Pump...............................................................................41.3
[41.216]Cylinders...........................................................................41.4
Wheels......................................................................................44
[44.511]Frontwheels........................................................................44.1
[44.520]Rearwheels........................................................................44.2
Electricalsystems.......................................................................55
[55.000]Electricalsystem...................................................................55.1
[55.100]Harnessesandconnectors.........................................................55.2
[55.201]Enginestartingsystem.............................................................55.3
[55.301]Alternator...........................................................................55.4
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[55.302]Battery..............................................................................55.5
[55.202]Coldstartaid.......................................................................55.6
[55.011]Fueltanksystem...................................................................55.7
[55.010]Fuelinjectionsystem...............................................................55.8
[55.012]Enginecoolingsystem.............................................................55.9
[55.013]Engineoilsystem................................................................55.10
[55.610]Groundspeedcontrol............................................................55.11
[55.522]CabPowerTake-Off(PTO)controls.............................................55.12
[55.031]Parkingbrakeelectricalsystem..................................................55.13
[55.404]Externallighting..................................................................55.14
[55.405]Externallightingswitchesandrelays............................................55.15
[55.510]Caborplatformharnessesandconnectors......................................55.16
[55.408]Warningindicators,alarms,andinstruments....................................55.17
[55.027]Cruisecontrol....................................................................55.18
Platform,cab,bodywork,anddecals.............................................90
[90.114]Operatorprotections...............................................................90.1
[90.120]Mechanically-adjustedoperatorseat...............................................90.2
[90.100]Enginehoodandpanels...........................................................90.3
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INTRODUCTION
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Contents
INTRODUCTION
Foreword-Importantnoticeregardingequipmentservicing(*)................................3
Safetyrules(*)..................................................................................4
Safetyrules-Ecologyandtheenvironment(*).................................................5
Torque-Standardtorquedataforhydraulicconnections(*)...................................6
Basicinstructions-Shopandassembly(*)...................................................13
Generalspecication(*)......................................................................15
Generalspecication(*)......................................................................19
Consumables(*)..............................................................................20
Dimension(*).................................................................................21
Productidentication(*)......................................................................24
Productidenticationmachineorientation(*).................................................25
(*)Seecontentforspecicmodels
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INTRODUCTION
Foreword-Importantnoticeregardingequipmentservicing
Workmaster™25S25Hp,withoutcabNA
Allrepairandmaintenanceworklistedinthismanualmustbecarriedoutonlybyqualieddealershippersonnel,
strictlycomplyingwiththeinstructionsgiven,andusing,wheneverpossible,thespecialtools.
Anyonewhoperformsrepairandmaintenanceoperationswithoutcomplyingwiththeproceduresprovidedherein
shallberesponsibleforanysubsequentdamages.
Themanufacturerandalltheorganizationsofitsdistributionchain,including-withoutlimitation-national,regional,or
localdealers,rejectanyresponsibilityfordamagescausedbypartsand/orcomponentsnotapprovedbythemanu-
facturer,includingthoseusedfortheservicingorrepairoftheproductmanufacturedormarketedbythemanufacturer.
Inanycase,nowarrantyisgivenorattributedontheproductmanufacturedormarketedbythemanufacturerincase
ofdamagescausedbypartsand/orcomponentsnotapprovedbythemanufacturer.
Themanufacturerreservestherighttomakeimprovementsindesignandchangesinspecicationsatanytimewithout
noticeandwithoutincurringanyobligationtoinstallthemonunitspreviouslysold.Specications,descriptions,and
illustrativematerialhereinareasaccurateasknownattimeofpublicationbutaresubjecttochangewithoutnotice.
Incaseofquestions,refertoyourNEWHOLLANDSalesandServiceNetworks.
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INTRODUCTION
Safetyrules
Workmaster™25S25Hp,withoutcabNA
Personalsafety
Thisisthesafetyalertsymbol.Itisusedtoalertyoutopotentialpersonalinjuryhazards.Obeyall
safetymessagesthatfollowthissymboltoavoidpossibledeathorinjury.
ThroughoutthismanualyouwillndthesignalwordsDANGER,WARNING,andCAUTIONfollowedbyspecialin-
structions.Theseprecautionsareintendedforthepersonalsafetyofyouandthoseworkingwithyou.
Readandunderstandallthesafetymessagesinthismanualbeforeyouoperateorservicethemachine.
DANGERindicatesahazardoussituationthat,ifnotavoided,willresultindeathorseriousinjury.
WARNINGindicatesahazardoussituationthat,ifnotavoided,couldresultindeathorseriousinjury.
CAUTIONindicatesahazardoussituationthat,ifnotavoided,couldresultinminorormoderateinjury.
FAILURETOFOLLOWDANGER,WARNING,ANDCAUTIONMESSAGESCOULDRESULT
INDEATHORSERIOUSINJURY .
Machinesafety
NOTICE:Noticeindicatesasituationthat,ifnotavoided,couldresultinmachineorpropertydamage.
ThroughoutthismanualyouwillndthesignalwordNoticefollowedbyspecialinstructionstopreventmachineor
propertydamage.ThewordNoticeisusedtoaddresspracticesnotrelatedtopersonalsafety.
Information
NOTE:Noteindicatesadditionalinformationthatclariessteps,procedures,orotherinformationinthismanual.
ThroughoutthismanualyouwillndthewordNotefollowedbyadditionalinformationaboutastep,procedure,or
otherinformationinthemanual.ThewordNoteisnotintendedtoaddresspersonalsafetyorpropertydamage.
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INTRODUCTION
Safetyrules-Ecologyandtheenvironment
Workmaster™25S25Hp,withoutcabNA
Soil,air,andwaterqualityisimportantforallindustriesandlifeingeneral.Whenlegislationdoesnotyetrulethe
treatmentofsomeofthesubstancesthatadvancedtechnologyrequires,soundjudgmentshouldgoverntheuseand
disposalofproductsofachemicalandpetrochemicalnature.
Familiarizeyourselfwiththerelativelegislationapplicabletoyourcountry,andmakesurethatyouunderstandthis
legislation.Wherenolegislationexists,obtaininformationfromsuppliersofoils,lters,batteries,fuels,anti-freeze,
cleaningagents,etc.,withregardtotheeffectofthesesubstancesonmanandnatureandhowtosafelystore,use,
anddisposeofthesesubstances.
Helpfulhints
•Avoidtheuseofcansorotherinappropriatepressurizedfueldeliverysystemstolltanks.Suchdeliverysystems
maycauseconsiderablespillage.
•Ingeneral,avoidskincontactwithallfuels,oils,acids,solvents,etc.Mostoftheseproductscontainsubstances
thatmaybeharmfultoyourhealth.
•Modernoilscontainadditives.Donotburncontaminatedfuelsandorwasteoilsinordinaryheatingsystems.
•Avoidspillagewhenyoudrainuidssuchasusedenginecoolantmixtures,engineoil,hydraulicuid,brakeuid,
etc.Donotmixdrainedbrakeuidsorfuelswithlubricants.Storealldraineduidssafelyuntilyoucandisposeof
theuidsinaproperwaythatcomplieswithalllocallegislationandavailableresources.
•Donotallowcoolantmixturestogetintothesoil.Collectanddisposeofcoolantmixturesproperly.
•Theair-conditioningsystemcontainsgasesthatshouldnotbereleasedintotheatmosphere.Consultanair-condi-
tioningspecialistoruseaspecialextractortorechargethesystemproperly.
•Repairanyleaksordefectsintheenginecoolingsystemorhydraulicsystemimmediately.
•Donotincreasethepressureinapressurizedcircuitasthismayleadtoacomponentfailure.
•Protecthosesduringwelding.Penetratingweldsplattermayburnaholeorweakenhoses,allowingthelossofoils,
coolant,etc.
Batteryrecycling
Batteriesandelectricaccumulatorscontainseveralsubstancesthatcanhaveaharmful
effectontheenvironmentifthebatteriesarenotproperlyrecycledafteruse.Improper
disposalofbatteriescancontaminatethesoil,groundwater,andwaterways.NEW
HOLLANDstronglyrecommendsthatyoureturnallusedbatteriestoaNEWHOLLAND
dealer,whowilldisposeoftheusedbatteriesorrecycletheusedbatteriesproperly.In
somecountries,thisisalegalrequirement.
Mandatorybatteryrecycling
NOTE:ThefollowingrequirementsaremandatoryinBrazil.
Batteriesaremadeofleadplatesandasulfuricacidsolution.Becausebatteriescontainheavymetalssuchaslead,
CONAMAResolution401/2008requiresyoutoreturnallusedbatteriestothebatterydealerwhenyoureplaceany
batteries.Donotdisposeofbatteriesinyourhouseholdgarbage.
Pointsofsaleareobligedto:
•Acceptthereturnofyourusedbatteries
•Storethereturnedbatteriesinasuitablelocation
•Sendthereturnedbatteriestothebatterymanufacturerforrecycling
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INTRODUCTION
Torque-Standardtorquedataforhydraulicconnections
Workmaster™25S25Hp,withoutcabNA
Generalinformation
•Hydraulicconnectionsrequireaminimumassemblytorqueinordertoprovidezeroleakageatratedpressurewith
adequatefatigueresistance.Over-torquingofahydraulicconnectioncanalsoleadtoleakageorfailure.Forsome
connections,NEWHOLLANDrequiresadifferenttorquevaluethanislistedintheISOandSAEstandards.
•Thetorquevaluesinthisdocumentshouldbeusedwheneverpossibleorapplicable.
NOTICE:Alwaysfollowtheinstructionsinthismanualforspecictorquevalueswhenyouservicecomponents.
Theinformationinthissectionisforgeneralguidanceonlywhenaprocedurecontainsnospecictorquevalue.
Tolerance
•Thetoleranceforalltorquevaluesis±10%.Thistolerancemustincludeallassemblyvariation,notonlythetorque
wrenchrepeatability.
Lubrication
Applicationofgreaseorotherlubricantstohydraulicconnectorsshouldbeavoided.Ifcleanhydraulicoilisalready
ontheconnection,itisnotrequiredtoremovetheoil.Generally,applicationofgrease:
•Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnection.
•Mayreducetheconnection’sresistancetovibration.
•Excessivegreasemaydisplaceanelastomersealduringtightening.
•Greaseextrusionwhenconnectionistightenedmaybemistakenforleakage.
NEWHOLLANDproductsgenerallyuseO-RingBoss(ORB)connectorsthathaveT eon™-coatedO-rings,eliminat-
ingtheneedforO-ringlubricationduringinstallation.Forconnectionswhicharemadeintoaluminummanifoldsor
withstainlesssteelconnectors,itmayberequiredtoapplyalubricanttopreventgalling.
UseofLOCTITE®andotherthread-lockingcompoundsisprohibited.Thesecompounds:
•Maycauseasignicantchangeinthetorquerequiredtoproperlytightentheconnections.
•Reducetheserviceabilityofthejoint.
•MaypreventtheO-ringfromproperlysealingifthecompoundgetsontheO-ring.
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INTRODUCTION
TorquevaluesformetricO-RingBoss(ORB)portconnections
S-Series*L-Series**
Metric
thread
Ferrous
N·m(lbft)±10%
Non-Ferrous
N·m(lbft)±10%
Ferrous
N·m(lbft)±10%
Non-Ferrous
N·m(lbft)±10%
M8x110.5(7.7)6.3(4.6)8.5(6.3)5(3.7)
M10x121(15.5)12.5(9.2)15.5(11.4)9.3(6.9)
M12x1.537(27.3)22(16.2)27(19.9)16(11.8)
M14x1.547(34.7)28(20.7)37(27.3)22(16.2)
M16x1.558(42.8)35(25.8)42(31)25(18.4)
M18x1.574(54.6)44(32.5)47(34.7)28(20.7)
M22x1.5105(77.4)63(46.5)63(46.5)38(28)
M27x2178(131.3)107(78.9)105(77.4)63(46.5)
M30x2225(166)135(99.6)136(100.3)82(60.5)
M33x2325(239.7)195(143.8)168(123.9)101(74.5)
M42x2345(254.5)207(152.7)220(162.3)132(97.4)
M48x2440(324.5)264(194.7)273(201.4)164(121)
M60x2525(387.2)315(232.3)330(243.4)198(146)
*S-SeriesconnectorsareusedwithO-RingFaceSeals(ORFS).
**L-Seriesconnectorsareusedwith37°are.
TorquevaluesformetricO-RingBoss(ORB)portplugs
FerrousNon-ferrous
Metric
thread
Internalhex
N·m(lbft)±10%
Externalhex
N·m(lbft)±10%N·m(lbft)±10%
M8x18.5(6.3)10.5(7.7)6.3(4.6)
M10x116(11.8)21(15.5)12.5(9.2)
M12x1.523(17)37(27.3)22(16.2)
M14x1.547(34.7)47(34.7)28(20.7)
M16x1.558(42.8)58(42.8)35(25.8)
M18x1.574(54.6)74(54.6)44(32.5)
M22x1.5105(77.4)105(77.4)63(46.5)
M27x2178(131.3)178(131.3)107(78.9)
M30x2225(166)225(166)135(99.6)
M33x2325(239.7)325(239.7)195(143.8)
M42x2345(254.5)345(254.5)207(152.7)
M48x2440(324.5)440(324.5)264(194.7)
M60x2525(387.2)525(387.2)315(232.3)
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INTRODUCTION
Torquevaluesforportconnections(BritishStandardPipeParallel(BSPP)threadportsandstudends)
Metrictube
OutsideDiameter(OD)
mm(in)
FerrousNon-Ferrous
BSPP
thread
G-Gas;
A-medium
coarsethreads
S-Series*L-Series**
S-Series
N·m(lbft)
±10%
L-Series
N·m(lbft)
±10%
S-Series
N·m(lbft)
±10%
L-Series
N·m(lbft)
±10%
G1/8A–6(0.236)–21(15.5)–12.5(9.2)
G1/4A
6(0.236)
or
8(0.315)
8(0.315)
or
10(0.394)
63(46.5)53(39.1)38(28)32(23.6)
G3/8A
10(0.394)
or
12(0.472)
12(0.472)95(70.1)84(62)57(42)50(36.9)
G1/2A16(0.630)
15(0.591)
or
18(0.709)
136(100.3)105(77.4)82(60.5)63(46.5)
G3/4A20(0.787)22(0.866)210(154.9)210(154.9)126(92.9)126(92.9)
G1A25(0.984)28(1.102)400(295)400(295)240(177)240(177)
G11/4A30(1.181)35(1.378)525(387.2)525(387.2)315(232.3)315(232.3)
G11/2A38(1.496)42(1.654)660(486.8)660(486.8)396(292.1)396(292.1)
*S-SeriesconnectorsareusedwithO-RingFaceSeals(ORFS).
**L-Seriesconnectorsareusedwith37°are.
Torquevaluesformetricportconnections(Metricface-sealportsandstudends)
Metrictube
OutsideDiameter(OD)
mm(in)
FerrousNon-Ferrous
Metric
threadS-Series*L-Series**
S-Series
N·m(lbft)
±10%
L-Series
N·m(lbft)
±10%
S-Series
N·m(lbft)
±10%
L-Series
N·m(lbft)
±10%
M10x1–4(0.157)–21(15.5)–12.5(9.2)
M12x1.54(0.157)6(0.236)47(34.7)32(23.6)28(20.7)19(14)
M14x1.55(0.197)7(0.276)63(46.5)53(39.1)38(28)32(23.6)
M16x1.57(0.276)9(0.354)84(62)63(46.5)50(36.9)38(28)
M18x1.58(0.315)11(0.433)105(77.4)84(62)63(46.5)50(36.9)
M20x1.510(0.394)–147(108.4)–88(64.9)–
M22x1.512(0.472)14(0.551)158(116.5)147(108.4)95(70.1)88(64.9)
M26x1.5–18(0.709)–210(154.9)–126(92.9)
M27x1.216(0.630)–210(154.9)126(92.9)–
M33x220(0.787)23(0.906)400(295)400(295)240(177)240(177)
M42x225(0.984)30(1.181)525(387.2)525(387.2)315(232.3)315(232.3)
M48x232(1.260)36(1.417)630(464.7)630(464.7)396(292.1)396(292.1)
*S-SeriesconnectorsareusedwithO-RingFaceSeals(ORFS).
**L-Seriesconnectorsareusedwith37°are.
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INTRODUCTION
TorquevaluesforInchO-RingBoss(ORB)portnon-adjustableconnections
S-Series*L-Series**
SAE
dashsize
UN/UNF
threadsize
Inchtube
OD
mm(in)
Ferrous
N·m(lbft)
±10%
Non-
Ferrous
N·m(lbft)
±10%
Ferrous
N·m(lbft)
±10%
Non-
Ferrous
N·m(lbft)
±10%
25/16-243.18(0.125)––8.5(6.3)5(3.7)
33/8-244.76(0.187)15.5(11.4)9.3(6.9)10.5(7.7)6.3(4.6)
47/16-206.35(0.250)37(27.3)22(16.2)19(14)11.5(8.5)
51/2-207.94(0.313)42(31)25(18.4)26(19.2)15.5(11.4)
69/16-189.52(0.375)47(34.7)28(20.7)32(23.6)19(14)
83/4-1612.7(0.500)89(65.6)53(39.1)53(39.1)32(23.6)
107/8-1415.88(0.625)121(89.2)73(53.8)63(46.5)38(28)
121-1/16-1219.05(0.750)178(131.3)107(78.9)100(73.8)60(44.3)
141-3/16-1222.22(0.875)225(166)135(99.6)131(96.6)79(58.3)
161-5/16-1225.4(1.000)283(208.7)170(125.4)156(115.1)94(69.3)
201-5/8-1231.75(1.250)300(221.3)180(132.8)210(154.9)126(92.9)
241-7/8-1238.1(1.500)388(286.2)233(171.9)220(162.3)132(97.4)
322-1/2-1250.8(2.000)388(286.2)233(171.9)315(232.3)189(139.4)
*S-SeriesconnectorsareusedwithO-RingFaceSeals(ORFS).
**L-Seriesconnectorsareusedwith37°are.
TorquevaluesforinchO-RingBoss(ORB)portadjustableconnections
S-Series*L-Series**
SAE
dashsize
UN/UNF
threadsize
Inchtube
OD
mm(in)
Ferrous
N·m(lbft)
±10%
Non-
Ferrous
N·m(lbft)
±10%
Ferrous
N·m(lbft)
±10%
Non-
Ferrous
N·m(lbft)
±10%
25/16-243.18(0.125)––8.5(6.3)5(3.7)
33/8-244.76(0.187)10.5(7.7)9.3(6.9)10.5(7.7)6.3(4.6)
47/16-206.35(0.250)21(15.5)21(15.5)19(14)11.5(8.5)
51/2-207.94(0.313)42(31)25(18.4)26(19.2)15.5(11.4)
69/16-189.52(0.375)47(34.7)28(20.7)32(23.6)19(14)
83/4-1612.7(0.500)89(65.6)53(39.1)53(39.1)32(23.6)
107/8-1415.88(0.625)121(89.2)73(53.8)63(46.5)38(28)
121-1/16-1219.05(0.750)178(131.3)107(78.9)100(73.8)60(44.3)
141-3/16-1222.22(0.875)225(166)135(99.6)131(96.6)79(58.3)
161-5/16-1225.4(1.000)285(210.2)170(125.4)156(115.1)94(69.3)
201-5/8-1231.75(1.250)300(221.3)180(132.8)210(154.9)126(92.9)
241-7/8-1238.1(1.500)388(286.2)233(171.9)220(162.3)132(97.4)
322-1/2-1250.8(2.000)388(286.2)233(171.9)315(232.3)189(139.4)
*S-SeriesconnectorsareusedwithO-RingFaceSeals(ORFS).
**L-Seriesconnectorsareusedwith37°are.
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INTRODUCTION
TorquevaluesforinchO-RingBoss(ORB)portplugs
FerrousNon-Ferrous
SAE
dashsize
UN/UNF
threadsize
Internalhex
N·m(lbft)
±10%
Externalhex
N·m(lbft)
±10%
N·m(lbft)
±10%
25/16-247.5(5.5)12.5(9.2)7.5(5.5)
33/8-2414.5(10.7)21(15.5)12.5(9.2)
47/16-2021(15.5)37(27.3)22(16.2)
51/2-2028(20.7)42(31)25(18.4)
69/16-1847(34.7)47(34.7)28(20.7)
83/4-1689(65.6)89(65.6)53(39.1)
107/8-14116(85.6)116(85.6)70(51.6)
121-1/16-12176(129.8)176(129.8)106(78.2)
141-3/16-12247(182.2)247(182.2)148(109.2)
161-5/16-12284(209.5)284(209.5)170(125.4)
201-5/8-12357(263.3)357(263.3)214(157.8)
241-7/8-12441(325.3)441(325.3)265(195.5)
322-1/2-12536(395.3)536(395.3)322(237.5)
Torquevaluesforfour-boltangeconnections(MetricScrews,Class10.9)
Metricsize
mm
Imperialsize
in
Screwcode
61
Code61
N·m(lbft)
±10%
Screwcode
62
Code62
N·m(lbft)
±10%
131/2M8x1.2534(25.1)M8x1.2534(25.1)
193/4M10x1.574(54.6)M10x1.574(54.6)
251M10x1.574(54.6)M12x1.75137(101)
M12x1.75137(101)
321-1/4M10x1.574(54.6)M14x1.5189(139.4)
381-1/2M12x1.75137(101)M16x2310(228.6)
512M12x1.75137(101)M20x2.5575(424.1)
642-1/2M12x1.75137(101)M24x3575(424.1)
763M16x2310(228.6)M30x3.5680(501.5)
893-1/2M16x2310(228.6)––
1024M16x2310(228.6)––
1275M16x2310(228.6)––
Torquevaluesforfour-boltangeconnections(MetricScrews,Class8.8)
Metricsize
mm
Imperialsize
in
Screwcode
61
Code61
N·m(lbft)
±10%
Screwcode
62
Code62
N·m(lbft)
±10%
131/2M8x1.2529(21.4)M8x1.2529(21.4)
193/4M10x1.557(42)M10x1.557(42)
251M10x1.557(42)M12x1.75100(73.8)
M12x1.75100(73.8)
321-1/4M10x1.557(42)M14x1.5160(118)
381-1/2M12x1.75100(73.8)M16x2250(184.4)
512M12x1.75100(73.8)M20x2.5500(368.8)
642-1/2M12x1.75100(73.8)M24x3575(424.1)
763M16x2250(184.4)M30x3.5680(501.5)
893-1/2M16x2250(184.4)––
1024M16x2250(184.4)––
1275M16x2250(184.4)––
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INTRODUCTION
Torquevaluesforfour-boltangeconnections(InchScrews,Grade8)
Metricsize
mm
Imperialsize
in
Screwcode
61
Code61
N·m(lbft)
±10%
Screwcode
62
Code62
N·m(lbft)
±10%
131/25/16-1834(25.1)5/16-1834(25.1)
193/43/8-1663(46.5)3/8-1663(46.5)
2513/8-1663(46.5)7/16-1497(71.5)
321-1/47/16-1497(71.5)1/2-13158(116.5)
381-1/21/2-13158(116.5)5/8-11310(228.6)
5121/2-13158(116.5)3/4-10473(348.9)
642-1/21/2-13158(116.5)––
7635/8-11310(228.6)––
893-1/25/8-11310(228.6)––
10245/8-11310(228.6)––
12755/8-11310(228.6)––
Taperedthreadconnectiontightening
BritishStandardPipeTaper
(BSPT)threadsize(inch)
NationalPipeThreadFuel
(NPTF)threadsize(inch)Turnsfromngertight
1/8-281/8-272-3
1/4-191/4-182-3
3/8-193/8-182-3
1/2-141/2-142-3
3/4-143/4-142-3
1-111-111/21.5-2.5
1-1/4-111-1/4-111/21.5-2.5
1-1/2-111-1/2-111/21.5-2.5
2-112-111/21.5-2.5
Torquevaluesforbanjoboltconnections(Copperwasherstyle)
Boltthread(metric)Hexsize(mm)TorqueN·m(lbft)±10%
M8x1.251313(9.6)
M10x1.251716(11.8)
M12x1.51740(29.5)
M14x1.51945(33.2)
M16x1.52248(35.4)
M18x1.52450(36.9)
M20x1.52773(53.8)
M22x1.53273(53.8)
M24x1.53273(53.8)
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INTRODUCTION
TorquevaluesforO-RingFaceSeals(ORFS)connections
SAE
dash
size
UN/UNF
threadsize
Inchtube
OD(mm)
Metric
tube
OD(mm)
Hexsize
(mm)
(Reference
only)
*
Swivelnut
torque
N·m(lbft)
±10%
**
Swivelnut
torque
N·m(lbft)
±10%
49/16-186.3561727(19.9)27(19.9)
55/8-187.9481934(25.1)34(25.1)
611/16-169.52102244(32.5)44(32.5)
813/16-1612.7122465(47.9)65(47.9)
101-1415.881630100(73.8)100(73.8)
121-3/16-1219.052036150(110.6)131(96.6)
141-5/16-1222.232241163(120.2)131(96.6)
161-7/16-1225.42541210(154.9)***131(96.9)
201-11/16-1231.753050280(206.5)***178(131.3)
242-1238.13860375(276.6)***210(154.9)
*High/Medium-pressureapplications>50bar(725psi).
**Low-pressureapplications<50bar(725psi).
***Itisrecommendedtouseafour-boltangeconnectioninsteadofO-RingFaceSeals(ORFS)sizes"16"andup.
Torquevaluesfor37°areconnections-JointIndustryCouncil(JIC)
SAE
dash
size
UN/UNF
threadsize
Metric
tube
OD(mm)
Inchtube
OD(mm)
Swivelnuttorque
N·m(lbft)±10%
25/16-24–3.188.25(6.1)
33/8-24–4.7611.5(8.5)
47/16-2066.3515.5(11.4)
51/2-2087.9420(14.8)
69/16-18109.5225(18.4)
83/4-161212.752(38.4)
107/8-141615.8881(59.7)
121-1/16-122019.05112(82.6)
141-3/16-12–22.22133(98.1)
161-5/16-122525.4155(114.3)
201-5/8-1230/3231.75180(132.8)
241-7/8-123838.1225(166)
322-1/2-125050.8348(256.7)
Torquevaluesfor30°are,60°coneconnections
Nominal
size(mm)
BritishStandardPipe
Parallel(BSPP)
threadsize
Hexsize(mm)Swivelnuttorque
N·m(lbft)±10%
5,6,6.3G1/41725(18.4)
8,9,10G3/81934(25.1)
12,12.5G1/22264(47.2)
15,16,19G3/430132(97.4)
25G136196(144.6)
31.5,32G1-1/446225(166)
38G1-1/250255(188.1)
50,51G265316(223.1)
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INTRODUCTION
Basicinstructions-Shopandassembly
Workmaster™25S25Hp,withoutcabNA
Shimming
Foreachadjustmentoperation,selectadjustingshimsandmeasuretheadjustingshimsindividuallyusingamicrom-
eter,thenadduptherecordedvalues.Donotrelyonmeasuringtheentireshimmingset,whichmaybeincorrect,or
theratedvalueshownoneachshim.
Rotatingshaftseals
Forcorrectrotatingshaftsealinstallation,proceedasfollows:
1.Beforeassembly,allowthesealtosoakintheoilitwillbesealingforatleastthirtyminutes.
2.Thoroughlycleantheshaftandcheckthattheworkingsurfaceontheshaftisnotdamaged.
3.Positionthesealinglipfacingtheuid.
NOTE:Withhydrodynamiclips,takeintoconsiderationtheshaftrotationdirectionandpositionthegroovessothat
theywillmovetheuidtowardstheinnersideoftheseal.
4.Coatthesealinglipwithathinlayeroflubricant(useoilratherthangrease).Fillthegapbetweenthesealinglip
andthedustlipondoublelipsealswithgrease.
5.Insertthesealinitsseatandpressdownusingaatpunchorsealinstallationtool.Donottapthesealwitha
hammerormallet.
6.Whileyouinserttheseal,checkthatthesealisperpendiculartotheseat.Whenthesealsettles,makesurethat
thesealmakescontactwiththethrustelement,ifrequired.
7.Topreventdamagetotheseallipontheshaft,positionaprotectiveguardduringinstallationoperations.
O-ringseals
LubricatetheO-ringsealsbeforeyouinsertthemintheseats.ThiswillpreventtheO-ringsealsfromoverturningand
twisting,whichwouldjeopardizesealingefciency.
Sealingcompounds
Applyasealingcompoundonthematingsurfaceswhenspeciedbytheprocedure.Beforeyouapplythesealing
compound,preparethesurfacesasdirectedbytheproductcontainer.
Spareparts
OnlyuseCNHOriginalPartsorNEWHOLLANDOriginalParts.
Onlygenuinesparepartsguaranteethesamequality,duration,andsafetyasoriginalparts,astheyarethesame
partsthatareassembledduringstandardproduction.OnlyCNHOriginalPartsorNEWHOLLANDOriginalPartscan
offerthisguarantee.
Whenorderingspareparts,alwaysprovidethefollowinginformation:
•Machinemodel(commercialname)andProductIdenticationNumber(PIN)
•Partnumberoftheorderedpart,whichcanbefoundinthepartscatalog
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INTRODUCTION
Protectingtheelectronicand/orelectricalsystemsduringchargingandwelding
Toavoiddamagetotheelectronicand/orelectricalsystems,alwaysobservethefollowingpractices:
1.Nevermakeorbreakanyofthechargingcircuitconnectionswhentheengineisrunning,includingthebattery
connections.
2.Nevershortanyofthechargingcomponentstoground.
3.Alwaysdisconnectthegroundcablefromthebatterybeforearcweldingonthemachineoronanymachine
attachment.
•Positiontheweldergroundclampasclosetotheweldingareaaspossible.
•Ifyouweldincloseproximitytoacomputermodule,thenyoushouldremovethemodulefromthemachine.
•Neverallowweldingcablestolieon,near,oracrossanyelectricalwiringorelectroniccomponentwhileyou
weld.
4.Alwaysdisconnectthenegativecablefromthebatterywhenchargingthebatteryinthemachinewithabattery
charger.
NOTICE:Ifyoumustweldontheunit,youmustdisconnectthebatterygroundcablefromthemachinebattery.
Theelectronicmonitoringsystemandchargingsystemwillbedamagedifthisisnotdone.
5.Removethebatterygroundcable.Reconnectthecablewhenyoucompletewelding.
WARNING
Batteryacidcausesburns.Batteriescontainsulfuricacid.
Avoidcontactwithskin,eyesorclothing.Antidote(external):Flushwithwater.Antidote(eyes):ush
withwaterfor15minutesandseekmedicalattentionimmediately.Antidote(internal):Drinklarge
quantitiesofwaterormilk.Donotinducevomiting.Seekmedicalattentionimmediately.
Failuretocomplycouldresultindeathorseriousinjury.W0111A
Specialtools
ThespecialtoolsthatNEWHOLLANDsuggestsandillustrateinthismanualhavebeenspecicallyresearchedand
designedforusewithNEWHOLLANDmachines.Thespecialtoolsareessentialforreliablerepairoperations.The
specialtoolsareaccuratelybuiltandrigorouslytestedtoofferefcientandlong-lastingoperation.
Byusingthesetools,repairpersonnelwillbenetfrom:
•Operatinginoptimaltechnicalconditions
•Obtainingthebestresults
•Savingtimeandeffort
•Workinginsafeconditions
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14

INTRODUCTION
Generalspecication
Workmaster™25S25Hp,withoutcabNA
Model
Workmaster™25S
Hydrostatic
Engine
TypeDiesel
Model3TNV80F
Emissionlevel(tier)Tier4B(nal)
AspirationIndirectswirlchamber
Enginegrosshorsepower18.4kW(24.7Hp)@3000RPM
Cylinders3
Bore80mm(3.15in)
Stroke84mm(3.3in)
Displacement1115cm³(68.0in³)
Compressionratio23.0:1
Firingorder1-3–2
Lowidlespeed1320RPM
Maximumspeed:
HighIdle3235RPM
Rated3000RPM
Blocktype:
Castiron
Lubrication:
Forcedlubricationtype
PumpTrochoidgearpump
Capacities
Fueltank25L(6.6USgal)
Coolingsystemcapacity3.3L(3.49USqt)
Enginecrankcase:
WithFilter2.9L(3USqt)
Rearaxle&transmission(Includeshydraulics)
HST12.5L(3USgal)
Frontaxle2L(1USgal)
Coolingsystem
TypePressurizedliquidwithrecirculatingbypass
Waterpump:
TypeCentrifugal
DriveV-Belt
Coolingsystemcapacity3.3L(3.49USqt)
Beltdeection10–14mm(0.39–0.55in)when10kgf(22lbf)pressure
isappliedmidwaybetweenbeltpulleys
Fandiameter330mm(13in)
Thermostat:
Starttoopen82°C(179.6°F)
FullyOpen95°C(203°F)
Radiatorcap90kPa(12.8psi)
Electricalsystem
Alternator12V,Heavyduty,40A
Battery12V,45A·h
Startingmotor12Velectricsolenoid
Cold-startaidGlowplug
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