New Holland TC48DA/TC55DA Tractor Service & Repair Manual

87357376 7/05 © 2005 CNH America LLC Printed In U.S.A. TC48DA, TC55DA REPAIR MANUAL COMPLETE CONTENTS SECTION 00 - GENERAL INFORMATION 2 .............................. SECTION 10 - ENGINE 3 .............................................. SECTION 18 - CLUTCH 11 .............................................. SECTION 21 - TRANSMISSION 12 ....................................... SECTION 23 - FWD DRIVELINE 19 ...................................... SECTION 25 - FWD FRONT AXLE 20 .................................... SECTION 27 - DIFFERENTIAL, REAR AXLE 21 ........................... SECTION 31 - POWER TAKE-OFF (PTO) 23 .............................. SECTION 33 - BRAKES 24 .............................................. SECTION 35 - HYDRAULIC SYSTEM 24 .................................. SECTION 41 - STEERING 28 ............................................ 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 books. Each book will be labeled as to which sections are in the overall Repair manual and which sections are in each book. The sections listed above are the sections utilized for the TC48DA, TC55DA Tractors.

2 SECTION 00 - GENERAL INFORMATION BOOK 1 - 87357372 Chapter 1 - General Information CONTENTS Section Description Page Precautionary Statements 2 ....................................................... Safety 3 ........................................................................ Safety Decals 6 .................................................................. Instruction Decals 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 Liquid 38 ..........................................................

3 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence CONTENTS Section Description Page Specifications 6 .................................................................. Metric Bolt Torque Specifications 10 ............................................... Special Tools 11 ................................................................. Compression Test and Tools 12 ................................................ Description of Operation -- General Information 13 ................................... 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 ..................................... Removal 24 ............................................................. External Oil Pipe 24 .......................................................... Removal 24 ............................................................. Rocker Assembly 25 ......................................................... Removal 25 .............................................................

4 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence (Continued) CONTENTS Section Description Page Cylinder Head 25 ............................................................ Removal 25 ............................................................. Tappets 25 ................................................................. Removal 25 ............................................................. Fuel Stop Solenoid 26 ........................................................ Removal 26 ............................................................. Timing Gear Cover 26 ........................................................ Removal 26 ............................................................. 10 106 Timing Gears and Camshaft 28 ................................................ Removal 28 ............................................................. Front End Plate 29 ........................................................... Removal 29 ............................................................. 10 102 Oil Sump 29 ................................................................ Removal 29 ............................................................. Oil Suction Pipe and Strainer 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 ............................................................

5 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence (Continued) CONTENTS Section Description Page Oil Pump 35 ................................................................ Disassembly 35 .......................................................... Inspection 35 ............................................................ Assembly (see Idler Gear) 35 .............................................. 10 101 Cylinder Head 36 ............................................................ Disassembly 36 .......................................................... Inspection and Repair 36 .................................................. Valves 37 ................................................................... Valve Guides 37 ............................................................. Valve Seat 38 ............................................................... Valve Springs 39 ............................................................ Rocker Arms 40 ............................................................. Push Rods 41 ............................................................... Cylinder Block 42 ............................................................ Inspection and Repair 42 .................................................. Piston and Piston Rings 43 ................................................... Disassembly 43 .......................................................... Inspection 43 ............................................................ Connecting Rods 45 ......................................................... Pistons, Rings and Connecting Rod 47 ......................................... Assembly 47 ............................................................ 10 103 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 ............................................................

6 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence (Continued) CONTENTS Section Description Page Relief Valve 52 .............................................................. Installation 52 ............................................................ Rear Oil Seal 53 ............................................................. Installation 53 ............................................................ Back Plate/Flyweel Housing 53 ................................................ Installation 53 ............................................................ 10 103 Flywheel 53 ................................................................. Inspection and Repair 53 .................................................. Flywheel 54 ................................................................. Installation 54 ............................................................ 10 105 Pistons and Connecting Rods 54 .............................................. Installation 54 ............................................................ 10 110 Balancer Assembly 55 ....................................................... Installation 55 ............................................................ Oil Suction Pipe and Suction Strainer 56 ........................................ Installation 56 ............................................................ Oil Sump 56 ................................................................ Installation 56 ............................................................ 10 106 Camshaft and Camshaft Gear 56 .............................................. Installation 56 ............................................................ 10 106 Idler Gear, Oil Pump and Injection Timing 57 .................................... Installation 57 ............................................................ 10 102 Timing Gear Case 58 ........................................................ Front Oil Seal and Steering Pump Seal 58 ...................................... Replacement 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 ...........................................

7 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence (Continued) CONTENTS Section Description Page 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 ............................................................ Alternator and Temperature Sender Switch 64 ................................... Installation 64 ............................................................ Glow Plug and Connector 65 .................................................. Installation 65 ............................................................ Nozzle/Holder Assembly 65 ................................................... Installation 65 ............................................................ Return Pipe and Injection Pipe 65 .............................................. Installation 65 ............................................................ Hydraulic Oil Pump 66 ....................................................... Installation 66 ............................................................ Power Steering Pump 66 ..................................................... Installation 66 ............................................................ 10 304 Description of Operation -- Engine Lubrication System 67 ............................. 10 206 Oil Filter 70 ................................................................. Construction and Function 70 .............................................. Maintenance 70 .......................................................... 10 304 Oil Pump 70 ................................................................ Removal 70 ............................................................. Inspection 70 ............................................................ Installation and Adjustment 71 ............................................. Engine Oil Pressure Check 72 .................................................

8 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 1 - Engine Dismantling Sequence (Continued) CONTENTS Section Description Page 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 .................................................. Installation 83 ............................................................ 10 402 Thermostat 84 .............................................................. Removal 84 ............................................................. Inspection and Repair 85 .................................................. Installation 85 ............................................................ Oil Cooler 86 ................................................................ Removal 86 ............................................................. Installation 86 ............................................................

9 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 2 - Fuel Systems CONTENTS Section Description Page Specifications 2 .................................................................. Standards for Adjusting the Injection Pump 2 ..................................... Torque Specifications 3 ........................................................... Special Tools 3 .................................................................. 10 242 Description of Operation -- Injection Pump 4 ......................................... Troubleshooting -- General 6 ...................................................... Troubleshooting -- Fuel Injectors 9 .................................................. Troubleshooting -- Governor 10 ................................................... Troubleshooting -- Engine Breather Valve 11 ......................................... 10 244 Fuel Variation Mechanism 12 .................................................. Delivery Valve Assembly 13 ................................................... 10 244 CTD (Compact Timing Device) Mechanism 13 ................................... 10 236 Pumping Elements 15 ........................................................ 10 214 Delivery Valves 17 ........................................................... 10 214 Injection Pump 19 ........................................................... Removal 19 ............................................................. Repair 21 ............................................................... Installation 21 ............................................................ 10 230 Timing and Governor Adjustments 22 .......................................... Installation (New Pump or Drive Component) 22 .............................. Spill-Timing Procedure 23 .................................................... Fuel Flow Chart 28 .......................................................... Bleeding the Fuel System 29 .................................................. Fuel Screw/High Idle Adjustment 29 ............................................ 10 230 Governor 30 ................................................................ Disassembly 32 .......................................................... Assembly 33 ............................................................ Adjustments 35 .......................................................... 10 218 Injectors 36 ................................................................. Removal 37 ............................................................. Disassembly 38 .......................................................... Assembly/Adjustment 38 .................................................. Engine Breather Valve (Non Turbocharged Engines) 39 ........................... Removal 40 ............................................................. Installation 40 ............................................................

10 SECTION 10 - ENGINE BOOK 1 - 87357372 Chapter 3 - Turbocharger CONTENTS Section Description Page Specifications 2 .................................................................. Troubleshooting 2 ................................................................ Lubrication 4 ................................................................. Turbocharger 5 ............................................................... Removal 5 ............................................................... Inspection Before Disassembly 6 ............................................ Disassembly 7 ............................................................ Inspection 9 .............................................................. Checking the Rotor For Movement 15 .......................................... Start-Up Lubrication 16 ....................................................... Intake Air System 16 ......................................................... Exhaust System 16 .......................................................... Initial Start of Turbocharger After Installation 16 ..................................

New Holland TC48DA/TC55DA Tractor Service & Repair Manual

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