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Engine - Engine and crankcase

NDIL14TR00926FA

6

Fuel system

The diesel fuel system consists of fuel tank, lift pump, fuel filters, mico rotary type fuel injection pump, fuel injectors,
and interconnecting tubes and lines.

The fuel injection pump is pressure fed from the lift pump. Fuel flows from the fuel tank to the sediment separator
(incorporated in lift pump), through the lift pump, then through the primary fuel filter and then to secondary fuel filter.
from the filter the fuel passes to the fuel injection pump to supply fuel at high pressure to each injector and also
provides extra fuel which lubricates and cools the injection pump.

This extra fuel is recirculated to the fuel tank, by means of the injector leak-off line.

Also excess fuel that leaks past the needle value of the injectors in directed back to the fuel tank, by means of the
injection leaf off-line.

Fuel shut-off (Injection pump)

Fuel injection pump is equipped with an electrically operated fuel shut off solenoid is energized by operation of the
ignition switch mounted in the instrument panel.

With the ignition switched “Off” a spring loaded plunger in the solenoid (held in position by the spring tension), prevents
fuel flowing into the pump from the main fuel feed port. With the ignition switched “on” the magnetized plunger is
energized by an internal coil and is drawn up into the body of the solenoid. Fuel is then allowed to flow through the
open port into the pump.

Lift pump

A diaphragm type fuel lift pump is located between tank and primary fuel filter. The pump draws fuel from the tank via
the sediments (incorporated in lift pump) and passes fuel under pressure to the primary and secondary fuel filter and
onto the fuel injection pump.

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Содержание TT55

Страница 1: ...SERVICE MANUAL TT55 TT65 TT75 Tractor Part number 47899733 1st edition English June 2015 2016 CNH Industrial India Pvt Ltd All Rights Reserved ...

Страница 2: ...SERVICE MANUAL TT55 2WD tractor TT55 4WD tractor TT65 2WD tractor TT65 4WD tractor TT75 2WD tractor TT75 4WD tractor 47899733 23 06 2015 EN Find manuals at https best manuals com ...

Страница 3: ...10 400 Engine cooling system 10 10 10 414 Fan and drive 10 11 10 304 Engine lubrication system 10 12 Clutch 18 18 110 Clutch and components 18 1 Transmission 21 21 114 Mechanical transmission 21 1 21 140 Mechanical transmission internal components 21 2 21 126 Gearbox external controls 21 3 21 145 Gearbox internal components 21 4 Four Wheel Drive 4WD system 23 23 314 Drive shaft 23 1 Front axle sys...

Страница 4: ...0 Mechanical service brakes 33 1 33 110 Parking brake or parking lock 33 2 Hydraulic systems 35 35 000 Hydraulic systems 35 1 35 104 Fixed displacement pump 35 2 35 359 Main control valve 35 3 35 204 Remote control valves 35 4 35 100 Main lift system 35 5 Steering 41 41 101 Steering control 41 1 41 200 Hydraulic control components 41 2 41 216 Cylinders 41 3 Wheels 44 44 511 Front wheels 44 1 Elect...

Страница 5: ... 55 301 Alternator 55 4 55 302 Battery 55 5 55 404 External lighting 55 6 55 408 Warning indicators alarms and instruments 55 7 47899733 23 06 2015 Find manuals at https best manuals com ...

Страница 6: ...INTRODUCTION 47899733 23 06 2015 1 Find manuals at https best manuals com ...

Страница 7: ...Contents INTRODUCTION Foreword 3 Safety rules 4 Safety rules 5 Safety rules 7 47899733 23 06 2015 2 Find manuals at https best manuals com ...

Страница 8: ...ons will be directly responsible for any damage caused Notes for equipment Equipment which NEW HOLLAND proposes and shows in this manual is Studied and designed expressly for use on NEW HOLLAND tractors Necessary to make reliable repair Accurately built and strictly tested to offer efficient and long lasting working life Notice The words front rear right hand side and left hand side refer to the d...

Страница 9: ...e operator or other persons directly or indirectly involved in the operation To prevent accidents Most accidents and personal injuries taking place in workshops are due from non observance of some essential rules and safety precautions The possibility that an accident might occur with any type of machines should not be disregarded no matter how well the machine in question was designed and built A...

Страница 10: ...uel tanks or batteries nor use starting liquid if you are smoking or near open flames as such fluids are flammable The fuel filling gun should always remain in contact with filler neck Maintain this contact until the fuel stops flowing into the tank to avoid possible sparks due to static electricity build up To transfer a failed tractor use a trailer of a low loading platform trolley if available ...

Страница 11: ...tis Always take system pressure readings using the appropriate gauges Wheels and tires Check that the tires are correctly inflated at the pressure specified by the manufacturer Periodically check for possible damage to the rims and tires Stay a the tire side when inflating Check the pressure only when the tractor is unloaded and tires are cold to avoid wrong reading due to over pres sure Never cut...

Страница 12: ...ondary containers should be labelled Solvent based adhesive sealers See solvents Follow manufacturer s instructions Water base adhesive sealers Those based on polymer emulsions and rubber lattices may contain small amounts of volatile toxic and harmful chem icals Skin and eye contact should be avoided and adequate ventilation provided during use Follow manufacturers instructions Resin based adhesi...

Страница 13: ...teries Brake and clutch fluids polyalkylene glycols See fire combustible Splashes to the skin and eyes are slightly irritating Avoid skin and eye contact as far as possible Inhalation of vapor hazards do not arise at ambient temperatures because of the very low vapor pressure Brazing See welding Chemical materials general See legal aspects Chemical materials such as solvents sealers adhesives pain...

Страница 14: ...n Fumes given off can build up to toxic harmful or explosive concentrations Some fumes are heavier than air and will accumulate in confined areas pits etc Do not transfer chemical materials to unlabeled containers Do not clean hands or clothing with chemical materials Chemicals particularly solvents and fuels will dry the skin and may cause irritation with dermatitis Some can be absorbed through t...

Страница 15: ...ctricity using dry non conductive material Commence resuscitation if trained to do so Summon medical assistance Exhaust fumes These contain asphyxiating harmful and toxic chemicals and particles such as carbon oxides nitrogen oxides alde hydes lead and aromatic hydrocarbons Engines should only be run under conditions of adequate extraction or general ventilator and not in confined spaces Gasoline ...

Страница 16: ...itivity reactions and may be toxic or harmful vapors and spray mists must not be breathed These materials must be applied with adequate ventilation and respi ratory protection Do not remove respirator immediately after spraying wait until vapor mists have cleared Burning of the uncured components and the cured foams can generate toxic and harmful fumes Smoking open flames or the use of electrical ...

Страница 17: ...uding skin cancer Gas cylinders See fire Gases such as oxygen acetylene carbon dioxide argon and propane are normally stored in cylinders at pressures of up to 2000 Ib sq in 13 790 kn m2 and great care should be taken in handling these cylinders to avoid mechanical damage to them or to the valve gear attached The contents of each cylinder should be clearly identified by appropriate markings Cylind...

Страница 18: ...minated during service e g routine service change sump oils are more irritating and more likely to cause serious effects including skin cancer in the event of gross and prolonged skin contact Wash skin thoroughly after work involving oil Proprietary hand cleaners may be of value provided they can be re moved from the skin with water Do not use petrol paraffin or other solvents to remove oil from t...

Страница 19: ... used Oxy acetylene flames should not be used as they are much hotter and will cause lead fumes to be evolved Some fumes may be produced by the application of any flame to surfaces coated with grease etc and inhalation of these should be avoided Removal of excess solder should be under taken with care to ensure that fine lead dust is not produced which can give toxic effects if inhaled Respiratory...

Страница 20: ...ded Never work under an unsupported suspended or raised load e g jacked up vehicle suspended engine etc Always ensure that lifting equipment such as jacks hoists axle stands slings etc are adequate and suitable for the job in good condition and regularly maintained Never improvise lifting tackle Underseal See corrosion protection Welding See fire electric shock gas cylinders Welding processes incl...

Страница 21: ...ssion is much less than that from arc welding and lighter filters may be used The process itself produces few toxic fumes but such fumes and gases may be produced from coatings on the work particularly during cutting away of damaged body parts and inhalation of the fumes should be avoided In brazing toxic fumes may be evolved from the metals in the brazing rod and a severe hazard may arise if braz...

Страница 22: ...SERVICE MANUAL Engine TT55 2WD tractor TT55 4WD tractor TT65 2WD tractor TT65 4WD tractor TT75 2WD tractor TT75 4WD tractor 47899733 23 06 2015 10 ...

Страница 23: ... Cylinder heads 10 4 10 105 Connecting rods and pistons 10 5 10 103 Crankshaft and flywheel 10 6 10 110 Balancer and damper 10 7 10 218 Fuel injection system 10 8 10 202 Air cleaners and lines 10 9 10 400 Engine cooling system 10 10 10 414 Fan and drive 10 11 10 304 Engine lubrication system 10 12 47899733 23 06 2015 10 ...

Страница 24: ...Engine 10 Engine and crankcase 001 TT55 2WD tractor TT55 4WD tractor TT65 2WD tractor TT65 4WD tractor TT75 2WD tractor TT75 4WD tractor 47899733 23 06 2015 10 1 10 001 1 ...

Страница 25: ...pecification 3 Torque 4 Sealing 4 Special tools 5 Crankcase General specification 6 FUNCTIONAL DATA Engine Static description 8 SERVICE Engine Service instruction 15 Remove 16 Install 26 Compression test 27 DIAGNOSTIC Engine Troubleshooting 29 47899733 23 06 2015 10 1 10 001 2 ...

Страница 26: ... in Camshaft bush seat diameters Front 54 780 54 805 mm 2 157 2 158 in Intermediate 54 280 54 305 mm 2 137 2 138 in Rear 53 780 53 805 mm 2 117 2 118 in Tappet seat bore diameter 15 000 15 018 mm 0 591 0 591 in Tappet oversize 0 100 mm 0 004 in 0 200 mm 0 008 in 0 300 mm 0 012 in Main bearing seat bore diameter 84 200 84 230 mm 3 315 3 316 in Cylinder head Valve guide seat bore diameter in head 13...

Страница 27: ...escription Thread size Torque Angle Bolt cylinder head C1 M12 X 1 25 40 N m 354 lb in 125 135 135 145 Bolt main bearing caps C2 M14 X 1 25 80 N m 708 lb in 90 Bolt timing cover and case C3 M12 X 1 25 40 N m 354 lb in Bolt connecting rod caps C4 M11 X 1 25 40 N m 354 lb in 60 Bolt flywheel C5 M12 X 1 25 40 N m 354 lb in 60 Bolt rocker shaft bracket C6 M8 X 1 25 25 N m 221 lb in Nut crankshaft pulle...

Страница 28: ...iption Tool number Injector tester 290284 Sling hook engine 290740 Cylinder head valve spring compressor 291050 Tractor 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 be used with engine stand 293860 9970844 Steering wheel puller 82834312 Bushes for steering wheel pu...

Страница 29: ...mm 0 007 in Crankshaft thrust washer thickness 3 378 3 429 mm 0 133 0 135 in Thrust washer oversize 0 127 mm 0 005 in 0 254 mm 0 508 in 0 508 mm 0 020 in Width of main bearing housing over thrust washers 31 766 31 918 mm 1 251 1 257 in Length of corresponding main journal 32 000 32 100 mm 1 260 1 264 in Crankshaft end float 0 082 0 334 mm 0 003 0 013 in Maximum wear clearance 0 400 mm 0 016 in Max...

Страница 30: ...006 0 0012 in Maximum wear clearance 0 060 mm 0 002 in Maximum weight difference between pistons on same engine 20 00 g 0 71 oz Piston ring clearance in groove Top 0 0900 0 1220 mm 0 0035 0 0048 in 2nd 0 0600 0 0850 mm 0 0024 0 0033 in 3rd 0 0400 0 0750 mm 0 0016 0 0030 in Maximum wear clearance Top 0 500 mm 0 020 in 2nd and 3rd 0 200 mm 0 008 in Piston ring gap Top 0 400 0 650 mm 0 016 0 026 in 2...

Страница 31: ...timing gear Camshaft end thrust is controlled by a thrust plate bolted to the block and located between the camshaft gear and the front camshaft journal A helical gear is integral on rear of cam shaft and drives the engine oil lubrication pump mounted forward of the flywheel Cylinder block assembly The cylinder block is an alloy cast iron with deep cylinder skirts water jackets for cooling the cyl...

Страница 32: ... chamber being recessed in to the piston crowns Each piston has two compression rings and one oil control ring to reduce the friction and increase positive seating All rings are located above the piston pin Manifolds The cross flow design aluminium intake and cast iron exhaust manifolds are on opposite sides of the cylinder head This is designed to maintain balanced heat distribution within the cy...

Страница 33: ...hrough a tube and screen assembly A spring loaded relief valve is integral with the oil filter and prevents over pressurization of the system A spin on type oil filter is mounted externally to its support housing on the left hand side of the engine Oil flows from the filter to the main oil gallery which runs the length of the cylinder block which also intersects the camshaft follower chamber The m...

Страница 34: ...Engine Engine and crankcase NDIL14TR00923FA 3 NDIL14TR00924FA 4 47899733 23 06 2015 10 1 10 001 11 ...

Страница 35: ...trols the flow of the water as required by tem perature changes NOTE A faulty thermostat may cause the engine to operate at too high hot or low cold on operating temperature If not replaced this could result in a damaged engine or impaired engine performance When the thermostat is closed a recirculating by pass is provided to allow the coolant to recirculate from the head to the block to effort a ...

Страница 36: ...ue of the injectors in directed back to the fuel tank by means of the injection leaf off line Fuel shut off Injection pump Fuel injection pump is equipped with an electrically operated fuel shut off solenoid is energized by operation of the ignition switch mounted in the instrument panel With the ignition switched Off a spring loaded plunger in the solenoid held in position by the spring tension p...

Страница 37: ...de of the engine receives fuel from lift pump From the filter head the fuel is diverted down through the filter element and into the base chamber The filtered fuel then flows up the centre tube of the element to the filter head outlet and into the injection pump 47899733 23 06 2015 10 1 10 001 14 ...

Страница 38: ...phs in the main overhaul procedure Operations or repairs that can be performed with the engine still in the tractor 1 Cylinder head and associated inlet and exhaust components 2 Fuel injection pump and related parts 3 Water pump thermostat and associated compo nents 4 Front timing cover timing gear removal 5 Front pulley Operations or repair that are performed with the engine separated from the fr...

Страница 39: ...luding protective goggles gloves and safety footwear Failure to comply could result in death or serious injury W0208A 1 Remove front ballast weights if fitted NDIL14TR00006AB 1 2 Slide the lock 1 to right hold and lift the handle 2 to raise the hood NDIL14TR00007AB 2 3 To maintain the hood in the raised position a gas strut 1 is provided underside the hood NDIL14TR00008AB 3 47899733 23 06 2015 10 ...

Страница 40: ...09AB 4 5 Loosen silencer mounting clamp bolts 1 and remove the silencer assembly NDIL14TR00010AB 5 6 Disconnect electric connections of centre harness 1 NDIL14TR00011AB 6 7 Remove the split pins and remove the roll pins 1 8 Unscrew the gas strut bolt 2 and remove the front hood NDIL14TR00012AB 7 47899733 23 06 2015 10 1 10 001 17 ...

Страница 41: ...This as a preview PDF file from best manuals com Download full PDF manual at best manuals com ...

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