New Holland T1254B User manual

© 2017 CNH Industrial (Harbin) Machinery Co. Ltd. All rights reserved.
SERVICE MANUAL
T1254B
T1404B
Tractor
Part number 48144036
1st edition English
August 2017
SERVICE
MANUAL
T1254B
T1404B
Tractor
1/3
Part number 48144036

SERVICEMANUAL
T1254BCKDT6050NHCAB6CY
T1254BSKDTTT6050Plus
T1404BCKDT6070NHCAB6CY
T1404BSKDTTT6070Plus
4814403604/08/2017
EN
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Contents
INTRODUCTION
Engine.......................................................................................10
[10.001]Engineandcrankcase.............................................................10.1
[10.102]Panandcovers....................................................................10.2
[10.106]Valvedriveandgears..............................................................10.3
[10.101]Cylinderheads.....................................................................10.4
[10.105]Connectingrodsandpistons.......................................................10.5
[10.103]Crankshaftandywheel............................................................10.6
[10.110]Balanceranddamper..............................................................10.7
[10.114]Pumpdrives........................................................................10.8
[10.210]Liftpumpandlines.................................................................10.9
[10.218]Fuelinjectionsystem.............................................................10.10
[10.202]Aircleanersandlines............................................................10.11
[10.250]Turbochargerandlines...........................................................10.12
[10.254]Intakeandexhaustmanifoldsandmufer.......................................10.13
[10.400]Enginecoolingsystem...........................................................10.14
[10.414]Fananddrive....................................................................10.15
[10.310]Aftercooler........................................................................10.16
Clutch.......................................................................................18
[18.104]Clutchhydraulicreleasecontrol....................................................18.1
[18.110]Clutchandcomponents............................................................18.2
[18.112]Slipclutchorywheeldamper.....................................................18.3
Transmission..............................................................................21
[21.114]Mechanicaltransmission...........................................................21.1
[21.111]Semi-Powershifttransmission......................................................21.2
[21.133]Semi-Powershifttransmissionexternalcontrols...................................21.3
[21.103]Semi-Powershifttransmissionhydrauliccomponents..............................21.4
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[21.152]Semi-Powershifttransmissioninternalcomponents...............................21.5
[21.160]Creeper............................................................................21.6
[21.166]Overdrive...........................................................................21.7
[21.112]Powershuttletransmission.........................................................21.8
[21.130]Mechanicaltransmissionexternalcontrols.........................................21.9
[21.134]Powershuttletransmissionexternalcontrols....................................21.10
[21.140]Mechanicaltransmissioninternalcomponents...................................21.11
[21.154]Powershuttletransmissioninternalcomponents................................21.12
Four-WheelDrive(4WD)system..................................................23
[23.202]Electro-hydrauliccontrol...........................................................23.1
[23.314]Driveshaft..........................................................................23.2
Frontaxlesystem.......................................................................25
[25.100]Poweredfrontaxle.................................................................25.1
[25.102]Frontbevelgearsetanddifferential...............................................25.2
[25.108]Finaldrivehub,steeringknuckles,andshafts.....................................25.3
[25.122]Axlesuspensioncontrol............................................................25.4
Rearaxlesystem........................................................................27
[27.100]Poweredrearaxle..................................................................27.1
[27.106]Rearbevelgearsetanddifferential................................................27.2
[27.120]Planetaryandnaldrives..........................................................27.3
PowerT ake-Off(PTO).................................................................31
[31.101]Rearmechanicalcontrol...........................................................31.1
[31.104]Rearelectro-hydrauliccontrol......................................................31.2
[31.114]Two-speedrearPowerTake-Off(PTO)............................................31.3
[31.142]FrontPowerTake-Off(PTO)control...............................................31.4
[31.146]FrontPowerTake-Off(PTO).......................................................31.5
Brakesandcontrols....................................................................33
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[33.202]Hydraulicservicebrakes...........................................................33.1
[33.110]Parkingbrakeorparkinglock......................................................33.2
[33.220]Trailerbrakehydrauliccontrol......................................................33.3
[33.204]Frontaxlebrake....................................................................33.4
Hydraulicsystems.......................................................................35
[35.000]Hydraulicsystems..................................................................35.1
[35.300]Reservoir,cooler,andlters........................................................35.2
[35.104]Fixeddisplacementpump..........................................................35.3
[35.106]Variabledisplacementpump.......................................................35.4
[35.105]Chargepump.......................................................................35.5
[35.322]Regulated/Lowpressuresystem...................................................35.6
[35.204]Remotecontrolvalves.............................................................35.7
[35.220]Auxiliaryhydraulicpump...........................................................35.8
[35.114]Three-pointhitchcontrolvalve.....................................................35.9
[35.116]Three-pointhitchcylinder........................................................35.10
[35.160]Fronthitchcontrolsandlines....................................................35.11
Hitches,drawbars,andimplementcouplings..................................37
[37.110]Rearthree-pointhitch..............................................................37.1
[37.120]Rearthree-pointhitchlinkage......................................................37.2
[37.162]Fronthitch..........................................................................37.3
[37.166]Fronthitchlinkage..................................................................37.4
Framesandballasting.................................................................39
[39.140]Ballastsandsupports..............................................................39.1
Steering.....................................................................................41
[41.101]Steeringcontrol....................................................................41.1
[41.106]Tierods.............................................................................41.2
[41.200]Hydrauliccontrolcomponents......................................................41.3
[41.216]Cylinders...........................................................................41.4
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Wheels......................................................................................44
[44.511]Frontwheels........................................................................44.1
[44.520]Rearwheels........................................................................44.2
Cabclimatecontrol.....................................................................50
[50.100]Heating.............................................................................50.1
[50.104]Ventilation..........................................................................50.2
[50.200]Airconditioning.....................................................................50.3
Electricalsystems.......................................................................55
[55.000]Electricalsystem...................................................................55.1
[55.100]Harnessesandconnectors.........................................................55.2
[55.015]Enginecontrolsystem..............................................................55.3
[55.201]Enginestartingsystem.............................................................55.4
[55.301]Alternator...........................................................................55.5
[55.302]Battery..............................................................................55.6
[55.011]Fueltanksystem...................................................................55.7
[55.012]Enginecoolingsystem.............................................................55.8
[55.640]Electronicmodules.................................................................55.9
[55.045]Frontaxlecontrolsystem........................................................55.10
[55.048]RearPowerTake-Off(PTO)controlsystem.....................................55.11
[55.035]Remotecontrolvalveelectriccontrol............................................55.12
[55.051]CabHeating,Ventilation,andAir-Conditioning(HVAC)controls.................55.13
[55.050]Heating,Ventilation,andAir-Conditioning(HVAC)controlsystem...............55.14
[55.047]Steeringcontrolsystem..........................................................55.15
[55.523]Cabhitchcontrols................................................................55.16
[55.130]Rearthree-pointhitchelectroniccontrolsystem.................................55.17
[55.405]Externallightingswitchesandrelays............................................55.18
[55.408]Warningindicators,alarms,andinstruments....................................55.19
[55.DTC]FAULTCODES..................................................................55.20
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Platform,cab,bodywork,anddecals.............................................90
[90.150]Cab.................................................................................90.1
[90.100]Enginehoodandpanels...........................................................90.2
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INTRODUCTION
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Contents
INTRODUCTION
Foreword........................................................................................3
Foreword-Howtouseandnavigatethroughthismanual.....................................4
ForewordEcologyandtheEnvironment........................................................9
Safetyrules...................................................................................10
Torque-Minimumtighteningtorquesfornormalassembly...................................22
Torque-Standardtorquedataforhydraulicconnections.....................................27
Capacities.....................................................................................34
ConsumablesLubricationsandCoolants.....................................................35
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INTRODUCTION
Foreword
IMPORTANTINFORMATION
AllrepairandmaintenanceworkslistedinthismanualmustbecarriedoutonlybystaffbelongingtotheNEWHOL-
LANDServicenetwork,strictlycomplyingwiththeinstructionsgivenandusing,wheneverrequired,thespecialtools.
Anyonewhocarriesouttheaboveoperationswithoutcomplyingwiththeprescriptionsshallberesponsibleforthe
subsequentdamages.
Themanufacturerandalltheorganizationsofitsdistributionchain,including-withoutlimitation-national,regionalor
localdealers,rejectanyresponsibilityfordamagesduetotheanomalousbehaviorofpartsand/orcomponentsnot
approvedbythemanufacturerhimself,includingthoseusedfortheservicingorrepairoftheproductmanufactured
ormarketedbytheManufacturer.Inanycase,nowarrantyisgivenorattributedontheproductmanufacturedor
marketedbytheManufacturerincaseofdamagesduetoananomalousbehaviorofpartsand/orcomponentsnot
approvedbytheManufacturer.
Noreproduction,thoughpartialoftextandillustrationsallowed.
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