SERVICE MANUAL
Part number 47899732 1st edition English June 2015 © 2016 CNH Industrial (India) Pvt.Ltd. All Rights Reserved.
TT55 / TT65 / TT75 Tractor
SER VICE MANUAL
47899732 23/06/2015
TT55 T ier3 engine, 2WD tractor , TT55 T ier3 engine, 4WD tractor , TT65 T ier3 engine, 2WD tractor , TT65 T ier3 engine, 4WD tractor , TT75 T ier3 engine, 4WD tractors , TT75 T ier3, 2WD tractor
Contents INTRODUCTION Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 [10.102] Pan and covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 [10.106] V alve drive and gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3 [10.101] Cylinder heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4 [10.105] Connecting rods and pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 Crankshaft and flywheel 10] Balancer and damper [10.218] Fuel injection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 [10.250] T urbocharger and lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.9 [10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.10 [10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 1 [10.304] Engine lubrication system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.12 Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [18.1 10] Clutch and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1 T ransmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14] Mechanical transmission [21.140] Mechanical transmission internal components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2 Gearbox external controls Gearbox internal components Four-Wheel Drive (4WD) system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive shaft Front axle system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [25.400] Non-powered front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1 [25.100] Powered front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.2 47899732 23/06/2015
Rear
Front bevel gear set and dif ferential
Final drive steering and shafts
system
[27.100] Powered rear axle
Rear bevel gear set and dif ferential
Planetary and final drives
Power T f (PT
Rear mechanical control
Power T f (PT drive shaft
Brakes and controls
Mechanical service brakes
10] Parking brake parking lock
Hydraulic systems
Hydraulic systems
Fixed displacement pump
Main control valve
Remote control valves
Main lift system
Hydraulic control components
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axle
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[27.106]
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[33.1
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Steering [41.101]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 [41.200]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 [41.216] Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front wheels Electrical systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [55.000] Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.1 [55.100] Harnesses and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.2 [55.201] Engine starting system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.3 47899732 23/06/2015
Steering control
Alternator Battery External lighting W arning and instruments 47899732 23/06/2015
INTRODUCTION 47899732 23/06/2015 1
Contents INTRODUCTION Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 47899732 23/06/2015 2
Foreword
Important notice
All maintenance and repair operations described this manual should carried out exclusively NEW HOLLAND authorised All instructions should carefully observed and special equipment where indicated should
Anyone who carries out service operations described without carefully observing these prescriptions will directly responsible for any damage
Notes for equipment
Equipment which NEW HOLLAND proposes and shows this manual is:
- Studied and designed expressly for use NEW HOLLAND
- Necessary make reliable repair
- Accurately built and strictly tested fer ficient and long - lasting working
Notice
The words “front”, “rear”, - hand and - hand refer the dif ferent parts seen from the operator ’ s seat oriented the normal direction movement the tractor
INTRODUCTION
47899732 23/06/2015 3
Safety rules
This warning symbol points out important messages involving personal safety Carefully read the safety rules contained herein and follow advised precautions avoid potential hazards and safeguarded your safety .
this manual you will find this symbol together with the following
W ARNING: gives warning about improper repair operations and potential consequences fecting the service s personal safety
DANGER: gives specific warning about potential dangers for personal safety the operator other persons directly indirectly involved the operation.
T o prevent accidents
Most accidents and personal injuries taking place workshops are due from non - observance some essential rules and safety
The possibility that accident might occur with any type machines should not disregarded, matter how well the machine question was designed and
A wise and careful service technician the best precautions against accidents. Careful observance this only basic precaution would enough avoid many severe
DANGER
Never carry out any lubrication maintenance operations when the engine
INTRODUCTION
47899732 23/06/2015 4
Safety rules
Generalities
Carefully follow specified repair and maintenance
• not wear rings, wrist watches, jewels, unbuttoned flapping clothing such ties, torn clothes, scarves, open jackets shirts with open zips which could get caught moving Use approved safety clothing such anti - slipping footwear , safety
• W ear safety glasses with side guards when cleaning parts using compressed air
• Damaged frayed wires and chains are not use them for lifting
• W ear suitable protection such approved eye special gloves and footwear whenever All persons standing vicinity the welding process should wear approved eye Never look the welding arc your eyes are not suitably
• Never carry out any repair the machine someone sitting the operator ’ s except they are qualified operators assisting the operation carried
• Never operate the machine use attachments from a place other than sitting the operator ’ s seat the side the machine when operating the fender
• Never carry out any operation the machine when the engine running, except when specifically indicated. Stop the engine and ensure that all pressure relieved from hydraulic circuits before removing
• All repair and maintenance operations should carried out with greatest care and attention.
• Disconnect the batteries and label all controls warn that the tractor being Block the machine and all equipment which should
• Never check fill fuel tanks nor use starting liquid you are smoking near open flames such fluids are
• The fuel filling gun should always remain contact with filler Maintain this contact until the fuel stops flowing into the tank avoid possible sparks due static electricity build -
• T o transfer a failed tractor , use a trailer a low loading platform trolley available.
• T o load and unload the machine from the transportation select a flat area providing a firm support the trailer truck Firmly tie the machine the truck the trailer platform and block wheels required the transporter
• Always use lifting equipment appropriate capacity lift move heavy
• Chains should always safely Ensure that fastening device strong enough hold the load persons should stand near the fastening
• The working area should always kept clean and dry . Immediately clean any spillage water oil.
• Never use diesel oil other flammable liquids cleaning Use non - flammable non - toxic proprietary solvents.
• not pile grease oil soaked they constitute a great fire Always place them into a metal container
Start
• Never run the engine confined spaces which are not equipped with adequate ventilation for exhaust gas
• Never bring your body , fingers near fans rotating
Engine
• Always loosen the radiator cap very slowly before removing allow pressure the system Coolant should topped only when the engine stopped.
• not fill fuel tank when the engine
• Never adjust the fuel injection pump when the tractor moving. Never lubricate the tractor when the engine 47899732
INTRODUCTION
23/06/2015 5
INTRODUCTION
Electrical systems
• necessary use auxiliary batteries, cables must connected both sides follows. (+) (+) and ( ( A void short - circuiting the Gas released from batteries highly During leave the battery compartment uncovered improve A void sparks flames near the battery not
• not charge batteries confined
• Always disconnect the batteries before performing any type service the electrical system.
Hydraulic systems
• Some fluid coming out from a very small port can almost invisible and strong enough penetrate skin. For this Never use your hands check for but use a piece cardboard a piece wood for this any fluid injected into the seek medical aid immediately Lack immediate medical attention may result serious infections
• Always take system pressure readings using the appropriate
Wheels and tires
• Check that the tires are correctly inflated the pressure specified the manufacturer Periodically check for possible damage the rims and
• Stay a the tire side when
• Check the pressure only when the tractor unloaded and tires are cold avoid wrong reading due over -
• Never cut, nor weld a rim with the inflated tire assembled.
• T o remove the block both front and rear tractor Raise the tractor and install safe and stable supports under the tractor accordance with the regulations
• Deflate the tire before removing any object caught into the tire
• Never inflate tires using flammable gases they may originate explosions and cause injuries
Removal and installation
• Lift and handle all heavy components using lifting equipment adequate capacity Ensure that parts are supported appropriate slings and Use lifting eyes provided this T ake care the persons near the loads
47899732 23/06/2015 6
TT55 T ier3 engine, 2WD tractor , TT55 T ier3 engine, 4WD tractor , TT65 T ier3 engine, 2WD tractor , TT65 T ier3 engine, 4WD tractor , TT75 T ier3 engine, 4WD tractors , TT75 T ier3, 2WD tractor 47899732 23/06/2015
SER VICE MANUAL Engine
Contents Engine[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 Pan and covers V alve drive and gears [10.101] Cylinder heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4 [10.105] Connecting rods and pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 Crankshaft and flywheel 10] Balancer and damper [10.218] Fuel injection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 T urbocharger and lines [10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.10 [10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 1 Engine lubrication system 47899732 23/06/2015
Engine -
Engine and crankcase - 001
TT55 T ier3 engine, 2WD tractor
TT55 T ier3 engine, 4WD
TT65 T ier3
2WD
TT65 T ier3 engine, 4WD
T
4WD
2WD
47899732 23/06/2015 10.1 [10.001] / 1
,
tractor ,
engine,
tractor ,
tractor , TT75
ier3 engine,
tractors , TT75 T ier3,
tractor
Contents EngineEngine and crankcase - 001 TECHNICAL T A Engine General specification 3 T orque 5 Sealing 5 Special tools 5 Crankcase General specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 FUNCTIONAL T A Engine Static description 8 SER VICE Engine Service instruction Remove Install Compression test DIAGNOSTIC Engine T roubleshooting 47899732 23/06/2015 10.1 [10.001] / 2
Engine - Engine and crankcase
Engine - General specification
General specifications TT55 TT65 TT75 Make IVECO T ype 4 direct water cooled Power Number cylinders 3 3 4 Bore 104 ( 4 ) 104 ( 4 ) 104 ( 4 ) Stroke 1 ( 5 ) 1 ( 5 ) 1 ( 5 ) Cubic capacity 2931 cm³ ( 179 in³ ) 2931 cm³ ( 179 in³ ) 3908 cm³ ( 238 in³ ) Compression ratio 18:1 18:1 18:1 Firing order 1 - 2 - 3 1 - 2 - 3 1 - 3 - 4 - 2 Idle speed 650 RPM 650 RPM 650 RPM Maximum load speed 2525 RPM 2770 RPM 2525 RPM Rated speed 2300 RPM 2500 RPM 2300 RPM Engine block T ype Dry type pre fitted liner with collar Cylinder liner seat diameter engine block 106.850 –106.900 ( 4.207 –4.209 ) Cylinder sleeve 107.020 –107.050 ( 4.213 –4.215 ) Interference between liners and seats block – ( – ) Liner oversize 0.200 ( 0.008 ) Cylinder liner inner diameter 104.00 –104.024 ( 4.09 –4.095 ) Maximum ovality and taper due wear 0.120 ( 0.005 ) Liner inner diameter oversize – ( – ) Camshaft bush seat diameters • Front 54.780 –54.805 ( 2.157 –2.158 ) • Intermediate 54.280 –54.305 ( 2.137 –2.138 ) • Rear – ( – ) T appet seat bore diameter 15.000 –15.018 ( 0.591 –0.591 ) T appet oversize 0.100 ( 0.004 ) ( ) 0.300 ( 0.012 ) Main bearing seat bore diameter – ( – ) Cylinder head V alve guide seat bore diameter head 13.950 –13.983 ( 0.549 –0.551 ) V alve guide oversize ( ) V alve stand - – ( – ) • Maximum stand - permitted 1.300 ( 0.051 ) Injector standout 0.050 –0.700 ( 0.002 –0.028 ) • Maximum stand - out permitted ( ) Original cylinder head height ( 4 ) Maximum head dressing allowed 0.500 ( 0.020 ) 47899732 23/06/2015 10.1 [10.001] / 3
Engine - Engine and crankcase
Exhaust valves TT55 TT65 TT75 V alve head diameter 41.000 –41.250 ( – ) 37.500 –37.750 ( – ) 41.000 –41.250 ( – ) V alve stem diameter –( 0.314 –0.315 ) –( 0.314 –0.315 ) –( 0.314 –0.315 ) Face angle 45° 30’±7’ 45° 30’±7’ 45° 30’±7’ T appet (cold) ( ) ( ) V alve clearance (cold / hot ) 0.450 ( 0.018 ) / ( ) Cam lift ( ) ( ) ( ) V alve lift 10.937 ( 0.431 ) 10.060 ( 0.396 ) 10.937 ( 0.431 ) Intake valves TT55 TT65 TT75 V alve head diameter 43.300 –45.500 ( 1.705 –1.791 ) 43.300 –45.500 ( 1.705 –1.791 ) 43.300 –45.500 ( 1.705 –1.791 ) V alve stem diameter 7.985 –8.000 ( – ) 7.985 –8.000 ( – ) 7.985 –8.000 ( – ) Face angle 60° 60° 60° T appet (cold) 0.300 ( 0.012 ) 0.300 ( 0.012 ) V alve clearance (cold / hot ) 0.450 ( 0.018 ) / 0.300 ( 0.012 ) Cam lift 5.889 ( 0.232 ) 5.250 ( 0.207 ) 5.889 ( 0.232 ) V alve lift 10.444 ( 0.41 1 ) 9.310 ( 0.367 ) 10.444 ( 0.41 1 ) V alve springs Number per valve 1 Free length 44.600 ( 1.756 ) Length loaded 26.1 –28.9 ( 57.5 –63.7 ) 34.000 ( 1.339 ) Length loaded 51.2 –56.5 ( 1 12.9 –124.6 ) 23.800 ( 0.937 ) V alve timing TT55 TT65 TT75 Intake opening (before top dead centre) 15° 12° 15° Intake closing (after bottom dead centre) 45° 31° 45° Exhaust opening (before bottom dead centre) 56° 50° 52° Exhaust closing (after top dead centre) 26° 16° 22° V alve timing Intake opening (before top dead centre) 15° 15° Intake closing (after bottom dead centre) 45° 45° Exhaust opening (before bottom dead centre) 56° 52° Exhaust closing (after top dead centre) 26° 22° V alve inserts V alve guide – ( – ) V alve guide oversize 0.200 ( 0.008 ) V alve guide interference fit housing cylinder head 0.0050 –0.0500 ( 0.0002 –0.0020 ) V alve guide fitted after reaming – ( – ) V alve stem clearance guide 0.0230 –0.0580 ( 0.0009 –0.0023 ) Maximum wear clearance 0.130 ( 0.005 ) Maximum valve stem eccentricity over one revolution with stylus sealing face 0.030 ( 0.001 ) 47899732 23/06/2015 10.1 [10.001] / 4
Engine - Engine and crankcase
Engine - T orque
Engine - Sealing
Operations described this section the manual must performed using the following essential tools work safely and achieve the best technical results with additional savings time and
Description Thread size T orque Angle cylinder head (C1) M12 X N·m ( 354 ) ( 125 – 135 ° ) + ( 135 – 145 ° ) main bearing caps (C2) M14 X 1.25 N·m ( 708 ) ° timing cover and case (C3) M12 X N·m ( 354 ) –Bolt, connecting rod caps (C4) 1 X ( 354 ) ° flywheel (C5) M12 X 1.25 N·m ( 354 ) ° rocker shaft bracket (C6) X 1.25 N·m ( 221 ) –crankshaft pulley hub (C7) M30 X 300 N·m ( 2655 ) –Bolt, fan and alternator drive pulley (C8) M12 X 1.25 ( 434 ) –injection pump shaft gear (C9) M12 X 1.25 N·m ( 566 ) –injection pump support (C10) M12 X 1.25 N·m ( 204 ) –Retaining additional weights (C1 M12 X 1 N·m ( 974 ) –Injector clamp nut ( 159 ) –
Operation description Sealant specification Adopter for oil filter (S1) L OCTITE ® 270 Adopter for tachometer cable (S2) L OCTITE ® 243™ Flywheel housing engine block (S3) L OCTITE ® 510™ T iming gear case studs (S4) L OCTITE ® 270 T iming gear cover dowel pin (S5) L OCTITE ® 270 Starter motor flywheel housing (S6) L OCTITE ® 510™ Allen plug cylinder head thermostat housing (S7) L OCTITE ® 243™ Cylinder head exhaust manifold studs (S8) L OCTITE ® 270 Oil sump engine block (S9) Loctite® 5699 Silencer mounting studs exhaust manifold (S10) Loctite® 77164 Flywheel bolt (S1 L OCTITE ® 243™
CAUTION
Engine - Special tools
T ool description T ool number Injector tester 290284 Sling engine 290740 Cylinder head valve spring compressor 291050 T ractor splitting trolley 292320 Installer rear main oil seal 9970846 Installer front oil seal 9970845 Dummy injector 9970364 Swan neck pipe (fuel timing) 9970848 Engine mounting bracket (to used with engine stand 293860) 9970844 Steering wheel puller 82834312 Bushes for steering wheel puller 9971375 Remover , hand accelerator pin 9971378 Cylinder pressure test Kit 9971410 Lube pressure check Kit 9971367 Piston ring compressor Local Piston ring expander Local 47899732 23/06/2015 10.1 [10.001] / 5
Crankcase - General specification
Engine - Engine and crankcase
Crank gear Crankshaft - bearings Main journal diameter – ( – ) Main journal undersize 0.254 ( 0.010 ) –0.508 ( 0.020 ) –0.762 ( 0.030 ) –( ) Main bearing wall thickness 2.168 –2.178 ( 0.085 –0.086 ) Main bearing undersize 0.254 ( 0.010 ) –0.508 ( 0.020 ) –0.762 ( 0.030 ) –1.016 ( 0.040 ) Main journal clearance bearings 0.034 –0.103 ( 0.001 –0.004 ) • Maximum wear clearance ( ) Crankpin diameter 63.725 –63.744 ( 2.509 –2.510 ) Crankpin undersize 0.254 ( 0.010 ) –( ) –0.762 ( 0.030 ) –1.016 ( 0.040 ) Big end bearing wall thickness 1.805 –1.815 ( 0.071 –0.071 ) Big end bearing undersize ( ) –0.508 ( 0.020 ) –( ) –1.016 ( 0.040 ) Crankpin clearance big end bearing – ( – ) • Maximum wear clearance 0.180 ( 0.007 ) Crankshaft thrust washer thickness 3.378 –3.429 ( 0.133 –0.135 ) Thrust washer oversize 0.127 ( 0.005 ) –0.254 ( 0.508 ) –( ) Width main bearing housing over thrust washers 31.766 –31.918 ( 1.251 –1.257 ) Length corresponding main journal 32.000 –32.100 ( 1.260 –1.264 ) Crankshaft end float 0.082 –0.334 ( 0.003 –0.013 ) • Maximum wear clearance ( ) Maximum main journal and crankpin ovality taper after grinding ( ) Maximum main journal and crankpin ovality taper due wear 0.0500 ( 0.0020 ) Maximum main journal misalignment crankshaft resting end journals ( ) Maximum misalignment crankpins relative main journals (in either direction) ( ) T olerance from outer crankpin edge crankshaft center line ± 0.1000 ( 0.0039 ) Maximum crankshaft flange run - out with gauge over 108.000 ( 4.252 ) diameter (total gauge reading) 0.0250 ( 0.0010 ) Maximum flywheel seat eccentricity relative main journals (total gauge reading) 0.0400 ( 0.0016 ) Connecting rods Small end bore diameter – ( – ) Small end bushing outer diameter – ( – ) Bushing interference fit small end 0.0950 –0.1710 ( 0.0037 –0.0067 ) Small end bushing fitted 38.004 –38.014 ( 1.496 –1.497 ) 47899732 23/06/2015 10.1 [10.001] / 6
Engine - Engine and crankcase
Big end bore diameter 67.407 –67.422 ( 2.654 –2.654 ) Maximum connecting rod axis misalignment ( ) ± 0.0700 ( 0.0028 ) Maximum connecting rod weight dif ference over a complete set from the same engine NOTE: TT65 Big end bearing without hole g ( ) Pistons Piston diameter (Measured 12.000 ( 0.472 ) from base skirt and right angles pin) 103.852 –103.870 ( 4.089 –4.089 ) Piston clearance liner 0.130 –0.172 ( 0.005 –0.007 ) • Maximum wear clearance 0.300 ( 0.012 ) Piston oversize range 0.600 ( 0.024 ) Piston stand - out with respect head TDC – ( – ) Piston pin diameter 37.983 –37.990 ( 1.495 –1.496 ) Piston pin seat bore piston 38.000 –38.006 ( 1.496 –1.496 ) Piston pin clearance piston – ( – ) Piston pin clearance small end bushing – ( – ) • Maximum wear clearance 0.060 ( 0.002 ) Maximum weight dif ference between pistons same engine 20.00 g ( 0.71 ) Piston ring clearance groove • T 0.0900 –0.1220 ( 0.0035 –0.0048 ) • 2nd – ( – ) • 3rd 0.0400 –0.0750 ( 0.0016 –0.0030 ) Maximum wear clearance • T ( ) • 2nd and 3rd 0.20 ( 0.01 ) Piston ring gap • T 0.250 –0.400 ( 0.010 –0.016 ) • 2nd – ( – ) • 3rd – ( – ) Maximum wear gap 1.20 ( 0.05 ) 47899732 23/06/2015 10.1 [10.001] / 7
Engine - Engine and crankcase
Engine - Static description
The engines are with 4 cylinders (TT75) and 3 cylinders (TT55), naturally aspirated (TT65) 3 cylinder with turbo charger Both engines feature cross flow cylinder with the inlet and exhaust manifolds opposite sides the cylinder The fuel and air combustion takes place the specially designed bowel the crown the
Cylinder head assembly
The cylinder head incorporates valves and with the valve rocker arm shaft assembly bolted the cylinder block through the cylinder Cylinder head retaining bolts are evenly spaced with a six - point pattern around each cylinder , this ensures even clamping load across the cylinder head.
The intake and exhaust manifolds are bolted the The intake manifold mounted the right - hand side the with the diesel injectors mounted outside the rocker cover The exhaust manifold mounted the left side the
W ater outlet connections and thermostat being attached the front the cylinder block directly behind the radiator
V alve guides are inserted into the cylinder and Special replaceable cast alloy valve seats are pressed into each valve port during over size valve seats guides are
All valves are fitted with positive value valve clearance maintained adjustment the self locking justing screw , mounted each the rocker
Camshaft assembly
The camshaft runs 3 replaceable The camshaft drive gear mesh with and driven the camshaft idler gear which driven the crankshaft timing gear
Camshaft end thrust controlled a thrust plate bolted the and located between the camshaft gear and the front camshaft journal.
A helical gear integral rear cam and drives the engine oil lubrication pump mounted forward the flywheel.
Cylinder block assembly
The cylinder block alloy cast iron with deep cylinder skirts & water jackets for cooling the cylinders. The cylinder bores are machined integral with the cylinder during the manufacturing Cylinders are line and vertical and numbered from 1 3 4 from front the engine the rear
The oil which attached the bottom the cylinder the reservoir for the engine oil lubrication
A cast iron engine front cover and front plate attached the front the engine and covers all the timing gear assembly
Crankshaft assembly
The crankshaft supported the cylinder block 5 and 4 main bearings TT75 and TT55 engines respectively
The crankshaft manufactured from steel with machined finished crank
End thrust controlled a thrust bearing incorporated the centre main bearing the crankshaft TT75 engine and the second main bearing from flywheel side TT55 / TT65
A dynamic balancer fitted and driven crankshaft ensure smooth running
Front and rear crankshaft oil sealing fected one piece seals that are designed for long and durable service
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Engine - Engine and crankcase
Connecting rods
Connecting rods shaped the small end has been designed reduce the reciprocating weight the piston The connecting rods are heavy beam construction and are assembled a matched set each attached the means insert type
They are retained position the connecting rod big end cap and secured two bolts per The small end the connecting rod fitted with a replaceable bronze through which the free floating piston pin The steel pin being held place within the piston two snap rings.
Pistons
Pistons are constructed aluminium silicon alloy with notch type combustion chamber being recessed the piston
Each piston has two compression rings and one oil control ring, reduce the friction and increase positive seating. All rings are located above the piston
Manifolds
The cross flow design aluminium and cast iron exhaust manifolds are opposite sides the cylinder This designed maintain balanced heat distribution within the cylinder The configuration the manifolds also ensures minimum heat transfer the intake
The intake manifold connected through hose air cleaner
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1
NDIL14TR00948FB 2
T iming gears
The crankshaft timing gear heated and press fitted the front the a high degree accuracy during This enables precise timing being maintained during the life the The crankshaft gear drives the idler gear , which attached the front cylinder The idler gear then drives the camshaft and the injection pump via meshing helical
The camshaft gear bolted the front the shaft and keyed maintain position the gear the
Lubrication system
Lubrication the figure 3 maintained a gear type oil pump mounted the rear the engine forward the flywheel the left - hand side viewing from rear side the The oil pump driven from the rear the camshaft and drains oil from the engine oil sump through a tube and screen assembly
A spring loaded relief valve integral with the oil filter and prevents over pressurization the A spin type oil filter mounted externally its support housing the left - hand side the Oil flows from the filter the main oil gallery , which runs the length the cylinder which also intersects the camshaft follower chamber .
The main gallery also supplies oil the crankshaft main connecting rods both big and small ends and timing gear bushes. The underside the pistons and pins are lubricated oil pressure spray jets fitted the cylinder block and oil supply via a internal drilled passage through the 2nd bearing the cylinder Big end are without a hole for small end bush lubrication through
T iming gears are lubricated splashed oil from the cam follower chamber and the pressure lubricated camshaft drive gear
intermittent flow oil directed the value rocker arm shaft assembly via a drilled passage the cylinder This located vertically above number 3 camshaft bearing and aligns a hole the cylinder The rotation the camshaft allows a controlled intermediate flow lubrication.
Engine - Engine and crankcase
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NDIL14TR00210FB 3
F Filter Oil pressure sensor
P Pump Suction filter T urbocharger T Oil filter cap
Filter relief valve Breather cap Dipstick
Cooling system
The function the water pump mounted the front the maintain a continuous flow water around the cooling system. This essential ensure correct engine temperature, and performance, during vehicle operation.
The pump driven a ‘V’ belt from the crankshaft pulley , when the engine
The cooling system for the new generation recirculating - pass type with full length water - jackets for the bottom tank the radiator the water which passes the coolant the cylinder This coolant then flows through cored passages cool the cylinder walls.
Passages the cylinder head gasket allow coolant flow from the cylinder into the cylinder head cored passages also conduct the coolant the fuel injector nozzle locations before - entering the water pump below the
The thermostat located the top the water pump body , and controls the flow the water required perature
NOTE: A faulty thermostat may cause the engine operate too high (hot) low (cold) operating not replaced this could result a damaged engine impaired engine
When the thermostat closed a recirculating - pass provided allow the coolant recirculate from the head the block fort a faster warm -
Once the engine has reached its normal operating the thermostat will open and allow water drawn through the radiator the pump Cooled water then returns the engine Cooling occurs the
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Engine - Engine and crankcase
coolant passes down through the radiator which are exposed the air drawn through the radiator the
NOTE: not operate engine without a The cooling system incorporates a drain the left hand side the cylinder The cap the radiator a system pressure cap and should not removed unless refilling the system from empty
The engine cooling fan mounted a pump pulley which belt driven from the
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Fuel system
The diesel fuel system consists fuel lift fuel mico rotary type fuel injection fuel and interconnecting tubes and
The fuel injection pump pressure fed from the lift Fuel flows from the fuel tank the sediment separator (incorporated lift through the lift then through the primary fuel filter and then secondary fuel filter from the filter the fuel passes the fuel injection pump supply fuel high pressure each injector and also provides extra fuel which lubricates and cools the injection pump.
This extra fuel recirculated the fuel means the injector leak - f
Also excess fuel that leaks past the needle value the injectors directed back the fuel tank, means the injection leaf f -
Fuel shut - off (Injection pump)
Fuel injection pump equipped with electrically operated fuel shut f solenoid energized operation the ignition switch mounted the instrument
With the ignition switched “Of a spring loaded plunger the solenoid (held position the spring prevents fuel flowing into the pump from the main fuel feed With the ignition switched the magnetized plunger energized internal coil and drawn into the body the Fuel then allowed flow through the open port into the
Lift pump
A diaphragm type fuel lift pump located between tank and primary fuel filter The pump draws fuel from the tank via the sediments (incorporated lift pump) and passes fuel under pressure the primary and secondary fuel filter and onto the fuel injection
Engine - Engine and crankcase
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Fuel Filters
Spin - type fuel filters situated the right - hand side the engine, receives fuel from lift pump. From the filter head the fuel diverted down through the filter element and into the base chamber
The filtered fuel then flows the centre tube the element the filter head outlet and into the injection pump. 47899732 23/06/2015
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Engine - Engine and crankcase
Engine - Service instruction
the following procedures and illustrations the engine the main shown removed from the tractor
However there are certain operations that can formed with the engine still the tractor , separated the connection the front axle separated from the transmission
The engine overhaul procedure initially describes the assembly process for rebuilding engine using all new Following this section are defined which describe detailed repair specifications and procedures, where components are suitable foruse.
Where overhaul components required without gine being removed from the tractor refer the ing and the relevant the main overhaul
Operations repairs that can performed with the engine still the tractor
Cylinder head and associated inlet and exhaust components.
Fuel injection pump and related
W ater pump, thermostat, and associated
Front timing cover / timing gear
Front pulley
Operations repair that are performed with the engine separated from the front
• Oil pan removal for access oil pan shaft, bearing shells, piston removal and oil pump.
Operations repairs that are performed with the gine separated from the transmission and with oil pan
• Crankshaft rear oil seal and carrier mantle the engine referring the following moval Refer the specification section necessary
NOTE: All gaskets, seals and O - rings must replaced while Where new sealant applied refer Specifications”.
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Engine - Remove W ARNING
A void injury!
Handle all parts carefully . not place your hands fingers between parts. Use Personal Protective Equipment (PPE) indicated this manual, including protective goggles, gloves, and safety
footwear
Failure comply could result death serious injury . W0208A
Remove front ballast weights fitted. NDIL14TR00006AB 1
Slide the lock (1) right, hold and lift the handle (2) raise the NDIL14TR00007AB 2
T o maintain the hood the raised a gas strut (1) provided underside the NDIL14TR00008AB 3
Engine - Engine and crankcase
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Disconnect battery terminals (1) and (2) .
NOTICE: Always disconnect the negative cable (1)
Loosen silencer mounting clamp bolts (1) and remove the silencer assembly
Disconnect electric connections centre harness (1)
Remove the split pins and remove the roll pins (1)
Unscrew the gas strut bolt (2) and remove the front
Engine - Engine and crankcase
NDIL14TR00009AB 4
NDIL14TR00010AB 5
NDIL14TR0001 1AB 6
NDIL14TR00012AB 7 47899732 23/06/2015 10.1 [10.001] /
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Engine - Engine and crankcase
NDIL14TR00013AB 8
Remove tool box (1) , tool box mounting bracket (2) and cover plate self starter (3)
NDIL14TR00014AB 9
10. Disconnect electric connections starter motor (1) .
NDIL14TR00015AB
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1 Close diesel tap (1) and disconnect hose (2) between diesel tank and feed
Remove the steering wheel cover and remove the nut (1)
Engine - Engine and crankcase
Remove the steering wheel using tool number 82834312 (1) (incase mechanical steering use also tool number 9971375 ) (2) .
NDIL14TR00017AB
14. Disconnect start safety switch connector (1) .
NDIL14TR00018AB
Unscrew the rear hood bolts (1) and remove cover strip and fire
NDIL14TR00019AB
Remove the accelerator knob (1)
NDIL14TR00020AB
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17. Unscrew all the screws (1) instrument panel.
NDIL14TR00021AB
18. Remove the steering hose (1) .
NDIL14TR00022AB
Pull out the instrument panel from the rear
NDIL14TR00023AB
Disconnect all electric wire connections the switches and unscrew hourmeter cable (1) from strument
Remove fuel tank
NDIL14TR00024AB
- Engine
Engine
and crankcase
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