Copyright © 2013 CNH America LLC. All Rights Reserved. SERVICE MANUAL T8.275 / T8.300 / T8.330 / T8.360 / T8.390 / T8.420 (CVT) Tractor PIN ZCRC02586 and above Part number 47533595 English May 2013
T8.275 [ZCRC02586 - ] , T8.300 [ZCRC02586 - ] , T8.330 [ZCRC02586 - ] , T8.360 [ZCRC02586 - ] , T8.390 [ZCRC02586 - ] , T8.420 [ZCRC02586 - ] 47533595 22/04/2013
SER VICE MANUAL
Continuously V ariable T ransmission (CVT) external controls
Continuously V ariable T ransmission (CVT) internal components
Continuously V ariable T ransmission (CVT) lubrication system Four-Wheel Drive
control
Front axle system
Front bevel gear set and dif ferential
Final drive steering and shafts
Axle suspension control Rear axle system
Contents INTRODUCTION Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine and crankcase [10.101] Cylinder heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 [10.1 14] Pump drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3 Air cleaners and lines [10.216] Fuel tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 [10.310] Aftercooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.6 Engine cooling system [10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 [10.500] Selective Catalytic Reduction (SCR) exhaust treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.9 Power coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive shaft T ransmission [21.504] Continuously
ransmission
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1
V ariable T
(CVT)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [23.202]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [25.100] Powered
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1 [25.102]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.2
(4WD) system
front axle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47533595 22/04/2013
Powered rear axle [27.106] Rear bevel gear set and dif ferential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2 [27.120] Planetary and final drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.3 Power T ake-Of f (PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear control 10] rear Power T f (PT 14] T rear Power T f (PT Front Power T f (PT Brakes and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10] Parking brake parking lock [33.202] Hydraulic
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.2 [33.220] T railer brake hydraulic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.3 T railer
Hydraulic systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [35.000] Hydraulic systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.1 [35.102] Pump control valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.2 V ariable displacement pump [35.1 14] Three-point hitch control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.4 hitch hydraulic adjustment Remote control valves [35.300] Reservoir , cooler , and filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.7 [35.304] Combination pump units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.8 Pneumatic system Pneumatic system Hitches, drawbars, and implement couplings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10] Rear hitch [37.162] Front hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37.2 Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47533595 22/04/2013
service brakes
brake pneumatic control
Steering control [41.200] Hydraulic control components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 [41.206] Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3
climate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [50.100] Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50.1 Air conditioning Cab pressurizing system Electrical systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine cooling system [55.015] Engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.2 T ransmission control system Front axle control system [55.046] Rear axle control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.5 [55.050] Heating, V entilation, and Air-Conditioning (HV AC) control system . . . . . . . . . . . . . . . . . 55.6 [55.051] Cab Heating, V entilation, and (HV AC) controls . . . . . . . . . . . . . . . . . . . 55.7 Harnesses and connectors [55.130] Rear three-point hitch electronic control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.9 [55.201] Engine starting system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.10 Alternator 1 [55.302] Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.12 [55.404] External lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.13 External lighting switches and relays W arning and instruments [55.512] Cab controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.16 [55.514] Cab lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.17 Wiper and washer system Electronic modules [55.988] Selective Catalytic Reduction (SCR) electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . 55.20 [55.DTC] F AUL T CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.21 47533595 22/04/2013
Cab
Platform, cab, bodywork, and decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine hood and panels Engine hood and trims [90.1 18] Protections and footboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90.3 operator seat Cab Cab interior [90.160] Cab interior trim and panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90.7 47533595 22/04/2013
INTRODUCTION 47533595 22/04/2013 1
Contents INTRODUCTION Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety rules 4 Basic instructions - Important notice regarding equipment servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 T orque - Minimum tightening torques for normal assembly 7 Capacities Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [ZCRC02586 - ] [ZCRC02586 - ] [ZCRC02586 - ] [ZCRC02586 - ] [ZCRC02586 - ] [ZCRC02586 - ] 47533595 22/04/2013 2
Safety rules
Personal safety
This the safety alert used alert you potential personal injury Obey all safety messages that follow this symbol avoid possible death injury
Throughout this manual and machine you will find the signal words W and CAUTION followed special These precautions are intended for the personal safety you and those working with you.
Read and understand all the safety messages this manual before you operate service the
DANGER indicates a hazardous situation not will result death serious injury The color associated with DANGER
W
ARNING indicates a hazardous situation not could result death serious injury The color associated with W ARNING
used with the safety alert indicates a hazardous situation not could result minor moderate injury The color associated with CAUTION YELLOW
F AILURE T O FOLLOW W AND CAUTION MESSAGES COULD RESUL T DEA SERIOUS INJUR Y .
Machine safety
NOTICE: Notice indicates a situation which, not avoided, could result machine property damage. The color associated with Notice
Throughout this manual you will find the signal word Notice followed special instructions prevent machine property The word Notice used address practices not related personal safety
Information
NOTE: Note indicates additional information which clarifies other information this
Throughout this manual you will find the word Note followed additional information about a other information the The word Note not intended address personal safety property
INTRODUCTION
47533595 22/04/2013 3
Safety rules
Standard safety precautions
informed and notify personnel the laws force regulating safety , and provide documentation available for consultation.
• Keep working areas clean
• Ensure that working areas are provided with emergency boxes. They must clearly visible and always contain adequate sanitary
• Fire extinguishers must properly identified and always clear Their ficiency must checked a regular basis and personnel must trained proper interventions and
• Keep all emergency exits free obstructions and clearly
• Smoking working areas subject fire danger must strictly
Prevention injury
• W ear suitable work attire and safety glasses with jewelry such rings and chains when working close engines and equipment
• W ear safety gloves and goggles when performing the following operations:
• T opping f changing lubrication
• Using compressed air liquids a pressure greater than 2 bar ( psi ) .
• W ear a safety helmet when working close hanging loads equipment working head
• Always wear safety shoes and fitting clothes.
• Use protection cream for
• Change wet clothes soon
• the presence voltages exceeding - V , verify the ficiency the ground and mass electrical Ensure that hands and feet are dry and use isolating foot W orkers should properly trained work with electricity
• not smoke start open flame close batteries and any fuel
• Place soiled rags with oil, diesel fuel solvents specially provided anti - fire containers.
• not use any tool equipment for any use other than what was originally intended for Serious injury may occur .
• running engine make sure there a suf ficient exhaust fan use eliminate exhaust
During maintenance
• Never open the filler cap the cooling system when the engine High temperature liquid operating pressure could result serious danger and risk W ait until the temperature decreases under ( 122 )
• Never add coolant overheated engine and use only appropriate
• Always work when the engine turned Certain circumstances require maintenance a running aware all the risks involved with such
• Always use adequate and safe containers for engine fluids and used
• Keep engine clean any spilled fluids such oil, diesel fuel, and chemical solvents.
• Use solvents detergents during maintenance may emit toxic Always keep working areas W ear a safety mask necessary .
• not leave soiled rags that may contain any flammable substances close the
• Always use caution when starting engine after any work has been prepared cut f intake air case engine runaway
• Never disconnect the batteries while the engine
47533595 22/04/2013
INTRODUCTION
4
• Disconnect the batteries prior performing any work the
• Disconnect the batteries place a load them with a load tester
• After any work verify that the battery clamp polarity correct and that the clamps are tight and safe from accidental short circuit and
• Before disconnecting any pipelines fuel verify that all pressure has been T ake all necessary precautions bleeding and draining residual Always wear the proper safety equipment.
• not alter the lengths any
• not connect any electronic service tool the engine electrical equipment unless specifically approved Iveco.
• not modify the fuel system hydraulic system unless approved Any unauthorized modification will compromise warranty assistance and may fect engine operation and life
For engine equipped with electronic control unit
• not weld any part the equipment without removing the control
• Remove the case work requiring heating over ( 176 )
• not paint the components and the electronic
• not alter any data filed the electronic control unit driving the Any manipulation alteration electronic components will void engine warranty assistance and may fect the correct working order and life span the engine.
Respect the Environment
• Respect the environment should primary importance. T ake all necessary precautions ensure safety and
• Inform the personnel the laws regarding the dispensing used engine fluids.
• Handle batteries with storing them a well ventilated environment and within anti - acid container
INTRODUCTION
47533595 22/04/2013 5
SER VICE MANUAL Engine T8.275 WE, T8.300 WE, T8.330 WE, T8.360 WE, T8.390 WE, T8.420 47533595 22/04/2013
Contents Engine[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 Cylinder heads 14] Pump drives [ZCRC02586 - ] Air cleaners and lines [ZCRC02586 - ] Fuel tanks [ZCRC02586 - ] Aftercooler [ZCRC02586 - ] Engine cooling system [ZCRC02586 - ] [10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 [ZCRC02586 - ] [10.500] Selective Catalytic Reduction (SCR) exhaust treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.9 [ZCRC02586 - ] 47533595 22/04/2013
EngineEngine and crankcase - 001 T8.275 WE, T8.300 WE, T8.330 WE, T8.360 WE, T8.390 WE, T8.420 47533595 22/04/2013 10.1 [10.001] / 1
Contents EngineEngine and crankcase - 001 SER VICE Engine Remove 3 [ZCRC02586 - ] Install [ZCRC02586 - ] 47533595 22/04/2013 10.1 [10.001] / 2
Engine - Remove
Engine - Engine and crankcase
[ZCRC02586 - ]
Prior operation: Disconnect the batteries Battery - Disconnect (55.302)
Prior operation: Remove the hood Hood - Remove (90.100)
Prior operation: Recover the refrigerant Air conditioning - Recover (50.200)
Prior operation: Drain the coolant Engine cooling system - Emptying
A TTENTION: For tractors equipped with front O / hitch, refer steps – for additional disassembly instructions.
NOTE: Clean all fittings before disconnecting.
NOTE: Cap plug all lines and ports when disconnecting hydraulic Remove the nuts (1) securing the condenser / fuel cooler
Disconnect the refrigerant hose from the receiver / dryer (1) and the condenser outlet hose (2) .
Open
RCPH10CCH054BAB 1
RCPH10CCH896AAB 2
RCPH10CCH894AAB 3 47533595 22/04/2013 10.1 [10.001] / 3
the latch (1) , and carefully remove the cooler from mounting and set
Remove the nuts (1) securing the oil cooler support
RCPH10CCH055BAB 4
Disengage the hose clamps (1) , tag and remove the fuel hoses the cooler
Loosen the hydraulic hose fittings (1) the oil cooler . Remove the Carefully remove the cooler and set
NOTE: Be prepared collect some hydraulic fluid.
RCPH10CCH897AAB 5
Remove the bolts (1) securing the right hose bracket (2) .
6
RCPH10CCH899AAB 7
Engine - Engine and crankcase
RCPH10CCH898AAB
47533595 22/04/2013 10.1 [10.001] / 4
Engine - Engine and crankcase
T and remove the hydraulic hoses (1) .
Loosen the clamp (2) the air cooler
Loosen the clamp (3) the air cooler outlet
1 Remove the clamp (4) the elbow the intake
Remove the tube assembly (5) and set RCPH10CCH056BAB 8
Remove and discard the intake elbow O - ring seal (1) RCPH10CCH903AAB 9
14. Loosen the clamps (1) and disconnect the engine coolant outlet (2) and inlet hoses (3) RCPH10CCH902AAB
47533595 22/04/2013 10.1 [10.001] / 5
15. Remove the bolts (1) securing the line / harness bracket the cooler assembly
1 1 the right hand side the A / C compressor , connect the four harness connectors (1) Remove the A / C line clamp (2)
Disconnect the high pressure (1) and suction (2) A / C lines from the compressor
Engine - Engine and crankcase
RCPH10CCH057BAB
RCPH10CCH059BAB
47533595 22/04/2013 10.1 [10.001] / 6
RCPH10CCH060BAB
18. equipped, disconnect the harness connector (1) for the suspended
RCPH10CCH904AAB
Disconnect the harness connector (1) for the fan
RCPH10CCH905AAB
Remove the nut (1) and disengage the alternator put cable (2)
RCPH10CCH907AAB
Disconnect
the
RCPH10CCH062BAB
Engine - Engine and crankcase
the harness connector (1) for
engine grid heater and the power supply cable (2) .
47533595 22/04/2013 10.1 [10.001] / 7
22. Disengage the hose clamps (1) and disconnect the fuel supply (2) and return (3)
Disconnect the engine blowby recirculation line (4) disconnect the air compressor inlet line (5) .
RCPH10CCH061BAB
At the front the disengage the clamp (1) , and remove the blowby recirculation tube (2) and set
RCPH10CCH807AAB
26. Remove the attaching bolts (1) , and remove the haust shield (2) and set
RCPH10CCH906AAB
Disconnect the harness (1) and supply and return hose connections (2) the SCR dosing valve (3)
RCPH10CCH908AAB
Engine - Engine and crankcase
47533595 22/04/2013 10.1 [10.001] / 8
28. Remove the bolts (1) for the exhaust shield bracket. Set the bracket (2)
RCPH10CCH909AAB
Open the insulation blanket (1) and remove the haust pipe clamp (2)
RCPH10CCH910AAB
Remove the support clamp bolt (1) and the lower pipe clamp (2) Remove the pipe (3) and set RCPH10CCH063BAB
Engine - Engine and crankcase
47533595 22/04/2013 10.1 [10.001] / 9
31. Loosen the clamp (1) the air cleaner assembly .
RCPH10CCH064BAB
Remove the bolts (1) securing the clamp (2) for the intake air
Loosen the tube elbow clamp (3) Remove the intake air tube and set
RCPH10CCH808AAB
35. Loosen the clamp (1) . Remove the turbo inlet elbow (2) and set
RCPH10CCH809AAB
Locate the tank heater control (1) for the SCR system above the
Disengage the connector locking wire (2) and nect the inlet connector (3)
Repeat for the outlet connector
Disconnect the harness connector (4)
RCPH10CCH91 1AAB
Engine - Engine and crankcase
47533595 22/04/2013 10.1 [10.001] /
Disconnect the hydraulic oil cooler supply and return line fittings (1)
Disengage the hose and disconnect the fuel cooler supply and return hoses (2) .
RCPH10CCH066BAB
Disconnect the harness connector (2) for the V auxiliary post (1)
Open the protective cover (3) , remove the ing nuts and disconnect the power cable into (4) and from (5) the fuse
Disconnect the power relay harness connector (6)
RCPH10CCH070BAB
Remove the bolt (1) securing the hose clamp (2) for the DEF / AdBlue® tank heater return
Remove the bolts (3) securing the bracket (4) the hood
RCPH10CCH071BAB
Engine
Engine -
and crankcase
47533595 22/04/2013 10.1 [10.001] / 1 1
47. Disconnect the harness connector (2) the primary fuel filter (1)
RCPH10CCH794AAB
Remove the front bracket attaching bolts (1) move the bracket (2) and set
RCPH10CCH069BAB
49. Disengage the clamp and disconnect the hose (1) the coolant recovery Remove the bracket (2) bolts (3) Set bottle / bracket
RCPH10CCH914AAB
Engine - Engine and crankcase
47533595 22/04/2013 10.1 [10.001] /
