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SECTION 10 - ENGINE - CHAPTER 1

10-1

SECTION 10 - ENGINE

Chapter 1 - Engine Dismantling Sequence

CONTENTS

Section

Description

Page

Specifications

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Metric Bolt Torque Specifications

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Special Tools

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Compression Test and Tools

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Description of Operation -- General Information

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Troubleshooting

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Cylinder Head and Valve Train Components

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Cylinder Block Assembly

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Engine

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Removal

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Installation

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Overhaul

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Engine

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Alternator

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Removal

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Cooling Fan and Pulley

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Removal

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Glow Plug and Connector

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Removal

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Nozzle/Holder

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Removal

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Fuel Injection Pipe

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Removal

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Injector

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Removal

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Water Pump

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Removal

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Cover/Intake Manifold/Exhaust Manifold

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Removal

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External Oil Pipe

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Removal

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Rocker Assembly

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Removal

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Содержание TC48DA

Страница 1: ... SECTION 44 WHEELS AND TIRES 30 SECTION 55 ELECTRICAL SYSTEM 31 SECTION 90 PLATFORM 39 The following pages are the collation of the contents pages from each section and chapter of the TC48DA TC55DA Repair manual Complete Repair part 87357371 The sections used through out all New Holland product Repair manuals may not be used for each product Each Repair manual will be made up of one or several boo...

Страница 2: ...ecals 9 Decal Placement Guide 12 Ecology and the Environment 14 Universal Symbols 15 General Information 16 Minimum Hardware Tightening Torques 17 Lubrication 19 Lubrication and Maintenance Chart 21 Lubrication Fittings 22 Diesel Fuel 22 Specifications 23 Transmission Speeds 26 General Dimensions 31 Wheel Tread Settings 34 Front Axle 2WD Adjustable 34 Liquid Ballast 38 Tire Pressure 38 Rear Tire L...

Страница 3: ... is controlled by the radiator cap It is dangerous to remove the cap while the system is hot Always turn the cap slowly to the first stop and allow pressure to escape before removing the cap entirely 2 Keep any type of open flame away from the tractor and do not smoke while refueling Wait for the engine to cool before refueling 3 Keep the tractor and equipment particularly brakes and steering main...

Страница 4: ... tractor on a steep incline 7 Do not operate the tractor engine in an enclosed building without adequate ventilation Exhaust fumes can cause death or illness 8 If the power steering or engine ceases operating stop the tractor immediately 9 Pull only from the drawbar or the lower link drawbar in the down position Use only a drawbar pin that locks in place Pulling from the tractor rear axle or any p...

Страница 5: ...uel filler pipe nozzle when filling the tank 5 Do not fill the fuel tank to capacity Allow room for expansion 6 Wipe up spilled fuel immediately 7 Always tighten the fuel tank cap securely 8 If the original fuel tank cap is lost replace it with a New Holland approved cap A non approved proprietary cap may not be safe 9 Keep equipment clean and properly maintained 10 Do not drive equipment near ope...

Страница 6: ...Troubleshooting 14 Cylinder Head and Valve Train Components 18 Cylinder Block Assembly 18 Engine 20 Removal 20 Installation 21 Overhaul 22 Engine 22 Alternator 22 Removal 22 Cooling Fan and Pulley 22 Removal 22 Glow Plug and Connector 22 Removal 22 Nozzle Holder 23 Removal 23 Fuel Injection Pipe 23 Removal 23 Injector 23 Removal 23 Water Pump 23 Removal 23 Cover Intake Manifold Exhaust Manifold 24...

Страница 7: ...rainer 30 Removal 30 10 110 Balancer Assembly 30 Removal 30 10 105 Connecting Rods Bearings and Pistons Rings 31 Removal 31 10 103 Flywheel 31 Removal 31 Backplate and Oil Seal 32 Removal 32 Crankshaft and Main Bearings 32 Removal 32 Rocker Arm Assembly 33 Disassembly 33 Inspection and Repair 33 10 106 Timing Gear 34 Inspection 34 Camshaft 34 Disassembly 34 Inspection 34 Oil Pump 35 Disassembly 35...

Страница 8: ...Crankshaft Main Bearing and Thrust Washer 48 Removal and Inspection 48 Crankshaft Bearing Bushing 49 Inspection 49 Removal 50 Replacement 50 Crankshaft Main Bearing 51 Installation 51 Port Block 51 Removal 51 Installation 51 10 103 Crankshaft and Bearing Holder 52 Installation 52 Relief Valve 52 Installation 52 Rear Oil Seal 53 Installation 53 Back Plate Flyweel Housing 53 Installation 53 10 103 F...

Страница 9: ...nt 58 Timing Gear Case 59 Installation 59 Crankshaft Pulley 60 Installation 60 Injection Pump 60 Installation 60 10 101 Head Gasket Selection 61 Head Gasket Selection Chart 61 Cylinder Head 61 Assembly 61 10 106 Valve Clearance Adjustment 63 Head Cover 63 Installation 63 Intake Exhaust Manifolds 63 Installation 63 External Oil Tube 64 Installation 64 Oil Pressure Switch 64 Installation 64 Alternat...

Страница 10: ... and Adjustment 71 Engine Oil Pressure Check 72 Oil Pressure Relief Valve 73 Removal 73 Installation 73 Oil Consumption 73 10 400 Description of Operation Cooling System 74 Maintenance 76 Coolant 76 Radiator Cap 76 10 402 Thermostat 77 10 402 Water Pump 77 10 414 Cooling Fan 77 Radiator 78 Removal 78 Inspection 79 Installation 80 10 402 Water Pump 82 Removal 82 Inspection and Repair 83 Installatio...

Страница 11: ...SECTION 10 ENGINE CHAPTER 1 10 19 MODEL N844L TC48DA 10044351 10044352 4 MODEL N844L TC TC55DA 20035585 5 ...

Страница 12: ...ect the headlight wire harness plug 1 3 Remove the clips and pins 2 from each side of the hood bracket 4 Remove the support rod 3 and remove the hood from the tractor 10032784 1 2 3 7 5 Drain the coolant from radiator and engine using the petcock valve 1 Remove radiator cap to assist draining 6 Remove the radiator see Radiator Removal in Section 10 10032808 1 8 ...

Страница 13: ...or 11 With the chain and hoist still attached to the engine remove the mount bolts 1 from each side of the frame rails 12 Carefully remove the engine 20002365 1 1 10 Installation 1 Attach a hoist to the engine and position it onto the frame 2 Install the engine mounting bolts on both sides of the frame Apply Loctite thread locker 242 to the thread of the bolts TIghten bolts to the following torque...

Страница 14: ...s can be done with the engine in or out of the tractor ALTERNATOR Removal Disconnect the alternator wire harness and wires 1 Remove the alternator pivot and adjusting bracket hardware 2 12 COOLING FAN AND PULLEY Removal Remove the fan 1 retaining hardware and spacers 13 GLOW PLUG AND CONNECTOR Removal Remove the glow plugs 1 and glow plug connectors 2 1 2 14 ...

Страница 15: ...on pump and injectors 1 Remove the pipes as an assembly 2 Remove the spring clamp and fuel return hose 2 INJECTOR Removal Loosen and remove the securing nuts 3 Remove the leak off rail 4 Remove the aluminum washers and discard Remove the injectors tagging or marking with the cylinder they were removed from 16 WATER PUMP Removal Loosen the securing bolts and remove the water pump assembly 1 and set...

Страница 16: ...ged engine refer to the turbocharger section of the manual for removal and replacement 18 Loosen and remove four cap nuts with washers Remove the head cover assembly 1 50051492 1 19 EXTERNAL OIL PIPE Removal 1 Loosen and remove the two banjo bolts 1 at the cylinder block main oil gallery and cylinder head assembly 2 Remove the clamp 2 from the fuel injection pump 2 20 ...

Страница 17: ...r pillar stud 1 Lift the rocker assembly 2 2 Remove the push rods 3 and valve stem caps 4 21 CYLINDER HEAD Removal Loosen the cylinder head bolts starting from the center in a circular pattern using several steps of equal torque Remove the head 22 TAPPETS Removal Pull the tappets from the machined bore in the cylinder block 23 ...

Страница 18: ...2 Remove the injection pump mounting nuts and raise the injection pump 1 enough to remove the spring pin 2 and separate the governor link from the control rack Remove the injection pump 2 1 25 NOTE Insert a small dowel 1 through the fuel shut off solenoid hole and slide the control rack 2 in to allow enough clearance to the cylinder block for the pump to be removed 20002371 1 2 26 ...

Страница 19: ...of the steering pump 30996355 3 4 2 1 27 5 Remove the through bolts and nuts 1 and re move the steering pump from the front cover Cap the lines and pump openings NOTE Two of the power steering pump retaining bolts are not shown 30996393 1 28 6 Install and tighten two nuts 1 against each other onto the retaining studs 2 Remove the studs 2 and the hydraulic pump 3 20002372 1 2 3 29 ...

Страница 20: ...y 2 off of crankshaft 3 Remove key 4 from crankshaft 20002373 1 2 3 4 30 8 Remove the retaining bolts 1 and lift the cover 2 off the locating dowels 1 2 31 Op 10 106 TIMING GEARS AND CAMSHAFT Removal 1 Remove retaining ring 1 and remove the idler gear 2 and oil pump assembly 3 1 3 2 32 ...

Страница 21: ...ide the camshaft and gear out of the camshaft bore 1 3 2 33 FRONT END PLATE Removal Remove the retaining bolts and lift the front plate off its locating dowels Remove the gasket and discard 34 Op 10 102 OIL SUMP Removal 1 Remove the oil sump retainer bolts 1 2 Remove the oil sump and discard gasket 3 Remove steel spacer 2 from the block 1 2 10032653 35 ...

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